STMICROELECTRONICS STM8L101G2U6A

STM8L101xx
8-bit ultralow power microcontroller with up to 8 Kbytes Flash,
multifunction timers, comparators, USART, SPI, I2C
Preliminary data
Features
■
Main microcontroller features
– Supply voltage range 1.65 V to 3.6 V
– Low power consumption (Halt: 0.3 µA,
Active-halt: 0.8 µA, Dynamic Run:
150 µA/MHz)
– STM8 Core with up to 16 CISC MIPS
throughput
– Temp. range: -40 to 85 °C and 125 °C
■
Memories
– Up to 8 Kbytes of Flash program including
up to 2 Kbytes of data EEPROM
– Error correction code (ECC)
– Flexible write and read protection modes
– In-application and in-circuit programming
– Data EEPROM capability
– 1.5 Kbytes of static RAM
■
Clock management
– Internal 16 MHz RC with fast wakeup time
(typ. 4 µs)
– Internal low consumption 38 kHz RC
driving both the IWDG and the AWU
■
■
■
LQFP32
WFQFPN32
WFQFPN28
UFQFPN20
TSSOP20
■
Peripherals
– Two 16-bit general purpose timers (TIM2
and TIM3) with up and down counter and 2
channels (used as IC, OC, PWM)
– One 8-bit timer (TIM4) with 7-bit prescaler
– Infrared remote control (IR)
– Independent watchdog
– Auto-wakeup unit
– Beeper timer with 1, 2 or 4 kHz frequencies
– SPI synchronous serial interface
– Fast I2C Multimaster/slave 400 kHz
– USART with fractional baud rate generator
– 2 comparators with 4 inputs each
Reset and supply management
– Ultralow power, ultrasafe power-on-reset
/power down reset
– Three low power modes: Wait, Active-halt,
Halt
■
Development support
– Hardware single wire interface module
(SWIM) for fast on-chip programming and
non intrusive debugging
– In-circuit emulation (ICE)
Interrupt management
– Nested interrupt controller with software
priority control
– Up to 29 external interrupt sources
■
96-bit unique ID
I/Os
– Up to 30 I/Os, all mappable on external
interrupt vectors
– I/Os with prog. input pull-ups, high
sink/source capability and one LED driver
infrared output
September 2009
Table 1.
Reference
STM8L101xx
Device summary
Part number
STM8L101F2, STM8L101F3,
STM8L101G2, STM8L101G3
STM8L101K3
Doc ID 15275 Rev 7
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
1/77
www.st.com
1
Contents
STM8L101xx
Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1
Central processing unit STM8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2
Development tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3
Single wire data interface (SWIM) and debug module . . . . . . . . . . . . . . . 10
3.4
Interrupt controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.5
Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.6
Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.7
Voltage regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.8
Clock control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.9
Independent watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.10
Auto-wakeup counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.11
General purpose and basic timers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.12
Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.13
Infrared (IR) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.14
Comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.15
USART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.16
SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.17
I²C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5
Memory and register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6
Interrupt vector mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7
Option bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8
Unique ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2/77
Doc ID 15275 Rev 7
STM8L101xx
9
Electrical parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1
Parameter conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1.1
Minimum and maximum values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1.2
Typical values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1.3
Typical curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1.4
Loading capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1.5
Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.3
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.4
10
Contents
9.3.1
General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.3.2
Power-up / power-down operating conditions . . . . . . . . . . . . . . . . . . . . 41
9.3.3
Supply current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.3.4
Clock and timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.3.5
Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.3.6
I/O port pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9.3.7
Communication interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9.3.8
Comparator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
9.3.9
EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10.1
ECOPACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10.2
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
11
Device ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
12
STM8 development tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
12.1
Emulation and in-circuit debugging tools . . . . . . . . . . . . . . . . . . . . . . . . . 72
12.2
Software tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
12.3
13
12.2.1
STM8 toolset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
12.2.2
C and assembly toolchains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Programming tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Doc ID 15275 Rev 7
3/77
List of tables
STM8L101xx
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Table 19.
Table 20.
Table 21.
Table 22.
Table 23.
Table 24.
Table 25.
Table 26.
Table 27.
Table 28.
Table 29.
Table 30.
Table 31.
Table 32.
Table 33.
Table 34.
Table 35.
Table 36.
Table 37.
Table 38.
Table 39.
Table 40.
Table 41.
Table 42.
Table 43.
Table 44.
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Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Device features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Legend/abbreviation for table 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
STM8L101xx pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Flash and RAM boundary addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
I/O Port hardware register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
General hardware register map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
CPU/SWIM/debug module/interrupt controller registers . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Interrupt mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Option bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Unique ID registers (96 bits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Voltage characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Current characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Thermal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
General operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Operating conditions at power-up / power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Total current consumption in Run mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Total current consumption in Wait mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Total current consumption and timing in Halt and Active-halt mode at
VDD = 1.65 V to 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Peripheral current consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
HSI oscillator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
LSI oscillator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
RAM and hardware registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Flash program memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
I/O static characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Output driving current (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Output driving current (true open drain ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Output driving current (PA0 with high sink LED driver capability). . . . . . . . . . . . . . . . . . . . 52
NRST pin characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
SPI characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
I2C characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Comparator characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
EMS data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
EMI data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
ESD absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Electrical sensitivities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Thermal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
WFQFPN32 - 32-lead very very thin fine pitch quad flat no-lead package (5 x 5),
package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
LQFP32- 32-pin low profile quad flat package (7x7), package mechanical data . . . . . . . . 67
WFQFPN28 - 28-lead very very thin fine pitch quad flat no-lead package (4 x 4),
package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
UFQFPN20 3 x 3 mm 0.6 mm mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
20-lead thin shrink small package, mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Doc ID 15275 Rev 7
STM8L101xx
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Figure 29.
Figure 30.
Figure 31.
Figure 32.
Figure 33.
Figure 34.
Figure 35.
Figure 36.
Figure 37.
Figure 38.
Figure 39.
Figure 40.
Figure 41.
Figure 42.
Figure 43.
Figure 44.
STM8L101 device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard 20-pin UFQFPN package pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
20-pin UFQFPN package pinout for STM8L101F3U6ATR and
STM8L101F2U6ATR part numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
20-pin TSSOP package pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Standard 28-pin WFQFPN package pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
28-pin WFQFPN package pinout for STM8L101G3U6ATR and
STM8L101G2U6ATR part numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
32-pin package pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Memory map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pin loading conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Pin input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
IDD(RUN) vs. VDD@ fCPU = 2 MHz
@4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
IDD(RUN) vs. VDD@ fCPU = 16 MHz @4 temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . 41
IDD(WAIT) vs. VDD@ fCPU = 2 MHz
@4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
IDD(WAIT) vs. VDD@ fCPU = 16 MHz @4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . 42
Typ. IDD(Halt) vs. VDD @ fCPU = 2 MHz and 16 MHz @4 temperatures. . . . . . . . . . . . . 43
Typical HSI frequency vs VDD @ 4 temperatures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Typical HSI accuracy at VDD = 3 V vs temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Typical HSI accuracy at VDD = 1.65 V to 3.6 V vs temperature. . . . . . . . . . . . . . . . . . . . . 46
Typical LSI RC frequency vs. VDD @ 4 temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Typical VIL and VIH vs VDD (standard I/Os) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Typical VIL and VIH vs VDD (true open drain I/Os) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Typical pull-up resistance RPU vs VDD @ 4 temperatures with VIN=VSS . . . . . . . . . . . . . 50
Typical pull-up current Ipu vs VDD @ 4 temperatures with VIN=VSS . . . . . . . . . . . . . . . . . 51
Typ. VOL @ VDD = 3.0 V (standard ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Typ. VOL @ VDD = 1.8 V (standard ports). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Typ. VOL @ VDD = 3.0 V (true open drain ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Typ. VOL @ VDD = 1.8 V (true open drain ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Typ. VDD - VOH @ VDD = 3.0 V (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Typ. VDD - VOH @ VDD = 1.8 V (standard ports) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Typical NRST pull-up resistance RPU vs VDD @ 4 temperatures . . . . . . . . . . . . . . . . . . . . 54
Typical NRST pull-up current Ipu vs VDD @ 4 temperatures . . . . . . . . . . . . . . . . . . . . . . . 55
Recommended NRST pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
SPI timing diagram - slave mode and CPHA = 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
SPI timing diagram - slave mode and CPHA = 1(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
SPI timing diagram - master mode(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Typical application with I2C bus and timing diagram 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
WFQFPN32 - 32-lead very very thin fine pitch quad flat no-lead package outline (5 x 5) . 65
WFQFPN32 recommended footprint(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
LQFP32 - 32-pin low profile quad flat package outline (7 x 7) . . . . . . . . . . . . . . . . . . . . . . 67
LQFP32 recommended footprint(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
WFQFPN28 - 28-lead very very thin fine pitch quad flat no-lead package outline (4 x 4) . 68
WFQFPN28 recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
UFQFPN20 3 x 3 mm 0.6 mm package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
UFQFPN20 recommended footprint (1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
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List of figures
Figure 45.
Figure 46.
Figure 47.
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STM8L101xx
TSSOP20 - 20-lead thin shrink small package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
TSSOP20 recommended footprint (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
STM8L101xx ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
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STM8L101xx
1
Introduction
Introduction
This datasheet provides the STM8L101xx pinout, ordering information, mechanical and
electrical device characteristics.
For complete information on the STM8L101xx microcontroller memory, registers and
peripherals, please refer to the STM8L reference manual.
2
Description
The STM8L101xx devices are members of the STM8L low power 8-bit family.
All devices of the SM8L product line provide the following benefits:
●
●
●
●
Reduced system cost
–
Up to 8 Kbytes of embedded Flash program memory including up to 2 Kbytes of
data EEPROM
–
High system integration level with internal clock oscillators and watchdogs.
–
Smaller battery and cheaper power supplies.
Low power consumption and advanced features
–
Up to 16 MIPS at 16 MHz CPU clock frequency
–
less than 150 µA/MH, 0.8 µA in Active-halt mode, and 0.3 µA in Halt mode
–
Clock gated system and optimized power management
Short development cycles
–
Application scalability across a common family product architecture with
compatible pinout, memory map and modular peripherals.
–
Full documentation and a wide choice of development tools
Product longevity
–
Advanced core and peripherals made in a state-of-the art technology
–
Product family operating from 1.65 V to 3.6 V supply
The STM8L101xx low power family features the enhanced STM8 CPU core providing
increased processing power (up to 16 MIPS at 16 MHz) while maintaining the advantages of
a CISC architecture with improved code density, a 24-bit linear addressing space and an
optimized architecture for low power operations.
The family includes an integrated debug module with a hardware interface (SWIM) which
allows non-intrusive In-Application debugging and ultrafast Flash programming.
All STM8L101xx microcontrollers feature low power low-voltage single-supply program
Flash memory. The 8-Kbyte devices embed data EEPROM.
The STM8L101xx low power family is based on a generic set of state-of-the-art peripherals.
The modular design of the peripheral set allows the same peripherals to be found in different
ST microcontroller families including 32-bit families. This makes any transition to a different
family very easy, and simplified even more by the use of a common set of development
tools.
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Description
STM8L101xx
All STM8L low power products are based on the same architecture with the same memory
mapping and a coherent pinout.
Table 2.
Device features
Features
Flash
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STM8L101xx
4 Kbytes of Flash program
memory
8 Kbytes of Flash program
memory including up to 2
Kbytes of Data EEPROM
RAM
1.5 Kbytes
Peripheral functions
Independent watchdog (IWDG), Auto-wakeup unit (AWU), Beep,
Serial peripheral interface (SPI), Inter-integrated circuit (I²C),
Universal synchronous / asynchronous receiver / transmitter
(USART),
2 comparators, Infrared (IR) interface
Timers
Two 16-bit timers, one 8-bit timer
Operating voltage
1.65 to 3.6 V
Operating temperature
-40 to +85 °C
-40 to +85 °C or
-40 to +125 °C
Packages
WFQFPN28 4x 4
UFQFPN20 3x3
TSSOP20 4.4 x 6.4
WFQFPN28 4x4
UFQFPN20 3x3
WFQFPN32
LQFP32
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STM8L101xx
3
Product overview
Product overview
Figure 1.
STM8L101 device block diagram
@VDD
VDD18
16 MHz int RC
38 kHz int RC
Clock
controller
Clocks
to core and
peripherals
Infrared interface
PA[6:0]
Port A
PB[7:0]
Port B
PC[6:0]
PD[7:0]
COMP1_CH[4:1]
1.5 Kbytes
SRAM
USART
RX, TX, CK
I²C1
multimaster
SDA, SCL
SPI
MOSI, MISO,
SCK, NSS
16-bit Timer 2
TIM2_CH[2:1]
TIM2_TRIG
Port C
16-bit Timer 3
TIM3_CH[2:1]
TIM3_TRIG
Port D
8-bit Timer 4
COMP1
IWDG
COMP2
Beeper
COMP_REF
COMP2_CH[4:1]
NRST
Up to 8 Kbytes
Flash memory
(including
up to 2 Kbytes
data EEPROM)
Address and data bus
IR_TIM
VDD =1.65 V
to 3.6 V
VSS
POR/PDR
Nested interrupt
controller
up to 29 external
interrupts
Debug module
(SWIM)
Volt. reg.
Reset
STM8
Core
up to 16 MHz
SWIM
Power
AWU
BEEP
Legend:
AWU: Auto-wakeup unit
Int. RC: internal RC oscillator
I²C: Inter-integrated circuit multimaster interface
POR/PDR: Power on reset / power down reset
SPI: Serial peripheral interface
SWIM: Single wire interface module
USART: Universal synchronous / asynchronous receiver / transmitter
IWDG: Independent watchdog
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Product overview
3.1
STM8L101xx
Central processing unit STM8
The 8-bit STM8 core is designed for code efficiency and performance.
It features 21 internal registers, 20 addressing modes including indexed, indirect and relative
addressing, and 80 instructions.
3.2
Development tools
Development tools for the STM8 microcontrollers include:
●
The STice emulation system offering tracing and code profiling
●
The STVD high-level language debugger including C compiler, assembler and
integrated development environment
●
The STVP Flash programming software
The STM8 also comes with starter kits, evaluation boards and low-cost in-circuit
debugging/programming tools.
3.3
Single wire data interface (SWIM) and debug module
The debug module with its single wire data interface (SWIM) permits non-intrusive real-time
in-circuit debugging and fast memory programming.
The Single wire interface is used for direct access to the debugging module and memory
programming. The interface can be activated in all device operation modes.
The non-intrusive debugging module features a performance close to a full-featured
emulator. Beside memory and peripherals, also CPU operation can be monitored in realtime by means of shadow registers.
3.4
Interrupt controller
The STM8L101xx features a nested vectored interrupt controller:
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●
Nested interrupts with 3 software priority levels
●
26 interrupt vectors with hardware priority
●
Up to 29 external interrupt sources on 10 vectors
●
Trap and reset interrupts
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STM8L101xx
3.5
Product overview
Memory
The STM8L101xx devices have the following main features:
●
1.5 Kbytes of RAM
●
The EEPROM is divided into two memory arrays (see the STM8L reference manual for
details on the memory mapping):
–
Up to 8 Kbytes of embedded Flash program including up to 2 Kbytes of data
EEPROM. Data EEPROM and Flash program areas can be write protected
independently by using the memory access security mechanism (MASS).
–
64 option bytes (one block) of which 5 bytes are already used for the device.
Error correction code is implemented on the EEPROM.
3.6
Low power modes
To minimize power consumption, the product features three low power modes:
3.7
●
Wait mode: CPU clock stopped, selected peripherals at full clock speed.
●
Active-halt mode: CPU and peripheral clocks are stopped. The programmable wakeup
time is controlled by the AWU unit.
●
Halt mode: CPU and peripheral clocks are stopped, the device remains powered on.
Wakeup is triggered by an external interrupt.
Voltage regulators
The STM8L101xx embeds an internal voltage regulator for generating the 1.8 V power
supply for the core and peripherals.
This regulator has two different modes: main voltage regulator mode (MVR) and low power
voltage regulator mode (LPVR). When entering Halt or Active-halt modes, the system
automatically switches from the MVR to the LPVR in order to reduce current consumption.
3.8
Clock control
The STM8L101xx embeds a robust clock controller. It is used to distribute the system clock
to the core and the peripherals and to manage clock gating for low power modes. This
system clock is a 16-MHz High Speed Internal RC oscillator (HSI RC), followed by a
programmable prescaler.
In addition, a 38 kHz low speed internal RC oscillator is used by the independent watchdog
(IWDG) and Auto-wakeup unit (AWU).
3.9
Independent watchdog
The independent watchdog (IWDG) peripheral can be used to resolve processor
malfunctions due to hardware or software failures.
It is clocked by the 38 kHZ LSI internal RC clock source, and thus stays active even in case
of a CPU clock failure.
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Product overview
3.10
STM8L101xx
Auto-wakeup counter
The auto-wakeup (AWU) counter is used to wakeup the device from Active-halt mode.
3.11
General purpose and basic timers
STM8L101xx devices contain two 16-bit general purpose timers (TIM2 and TIM3) and one
8-bit basic timer (TIM4).
16-bit general purpose timers
The 16-bit timers consist of 16-bit up/down auto-reload counters driven by a programmable
prescaler. They perform a wide range of functions, including:
●
Time base generation
●
Measuring the pulse lengths of input signals (input capture)
●
Generating output waveforms (output compare, PWM and one pulse Mode)
●
Interrupt capability on various events (capture, compare, overflow, break, trigger)
●
Synchronization with other timers or external signals (external clock, reset, trigger and
enable)
8-bit basic timer
The 8-bit timer consists of an 8-bit up auto-reload counter driven by a programmable
prescaler. It can be used for timebase generation with interrupt generation on timer overflow.
3.12
Beeper
The STM8L101xx devices include a beeper function used to generate a beep signal in the
range of 1, 2 or 4 kHz when the LSI clock is operating at a frequency of 38 kHz.
3.13
Infrared (IR) interface
The STM8L101xx devices contain an infrared interface which can be used with an IR LED
for remote control functions. Two timer output compare channels are used to generate the
infrared remote control signals.
3.14
Comparators
The STM8L101xx features two zero-crossing comparators (COMP1 and COMP2) sharing
the same current bias and voltage reference. The voltage reference can be internal
(comparison with ground) or external (comparison to a reference pin voltage).
Each comparator is connected to 4 channels, which can be used to generate interrupt, timer
input capture or timer break. Their polarity can be inverted.
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STM8L101xx
3.15
Product overview
USART
The USART interface (USART) allows full duplex, asynchronous communications with
external devices requiring an industry standard NRZ asynchronous serial data format. It
offers a very wide range of baud rates.
3.16
SPI
The serial peripheral interface (SPI) provides half/ full duplex synchronous serial
communication with external devices. It can be configured as the master and in this case it
provides the communication clock (SCK) to the external slave device. The interface can also
operate in multi-master configuration.
3.17
I²C
The inter-integrated circuit (I2C) Bus Interface is designed to serve as an interface between
the microcontroller and the serial I2C bus. It provides multi-master capability, and controls all
I²C bus-specific sequencing, protocol, arbitration and timing. It manages standard and fast
speed modes.
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Pin description
Pin description
Standard 20-pin UFQFPN package pinout
PC1 / I²C_SCL
20 19 18 17
16
PC3 (HS) / USART_TX
PC2 (HS) / USART_RX
PA0 (HS) / SWIM / BEEP / IR_TIM
Figure 2.
PC4 (HS) / USART_CK / CCO
4
STM8L101xx
14
PB7 (HS) / SPI_MISO
PA3 (HS)
3
13
PB6 (HS) / SPI_MOSI
VSS
4
12
PB5 (HS) / SPI_SCK
VDD
5
11
PB4 (HS) / SPI_NSS
6
7
8
9
10
PB3 (HS) / TIM2_TRIG / COMP2_CH2
2
PB2 (HS) / TIM2_CH2 / COMP2_CH1
PC0 / I²C_SDA
PA2 (HS)
PB1 (HS) / TIM3_CH1 /COMP1_CH2
15
PB0 (HS) / TIM2_CH1 / COMP1_CH1
1
PD0 (HS) / TIM3_CH2 / COMP1_CH3
NRST / PA1 (HS)
1. HS corresponds to 20 mA high sink/source capability.
2. High sink LED driver capability available on PA0. Refer to the description of the IR_CR register in the
STM8L reference manual (RM0013).
Note:
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The COMP_REF pin is not available in this standard 20-pin UFQFPN package. It is available
on Port A6 in the 20-pin UFQFPN package pinout for STM8L101F3U6ATR and
STM8L101F2U6ATR part numbers (Figure 3 on page 15).
Doc ID 15275 Rev 7
STM8L101xx
Pin description
PC1 / I²C_SCL
20 19 18 17
16
PC3 (HS) / USART_TX
PC2 (HS) / USART_RX
PC4 (HS) / USART_CK / CCO
20-pin UFQFPN package pinout for STM8L101F3U6ATR and
STM8L101F2U6ATR part numbers
PA0 (HS) / SWIM / BEEP / IR_TIM
Figure 3.
14
PB7 (HS) / SPI_MISO
PA6 (HS) / COMP_REF
3
13
PB6 (HS) / SPI_MOSI
VSS
4
12
PB5 (HS) / SPI_SCK
VDD
5
11
PB4 (HS) / SPI_NSS
6
7
8
9
10
PB3 (HS) / TIM2_TRIG / COMP2_CH2
2
PB2 (HS) / TIM2_CH2 / COMP2_CH1
PC0 / I²C_SDA
PA2 (HS)
PB1 (HS) / TIM3_CH1 /COMP1_CH2
15
PB0 (HS) / TIM2_CH1 / COMP1_CH1
1
PD0 (HS) / TIM3_CH2 / COMP1_CH3
NRST / PA1 (HS)
1. Please refer to the warning below.
2. HS corresponds to 20 mA high sink/source capability.
3. High sink LED driver capability available on PA0. Refer to the description of the IR_CR register in the
STM8L reference manual (RM0013).
Warning:
For the STM8L101F3U6ATR and STM8L101F2U6ATR part
numbers (devices with COMP_REF pin), all ports available on
32-pin packages must be considered as active ports. To avoid
spurious effects, you have to configure them as input pull-up.
A small increase in consumption (typ. < 300 µA) may occur
during the power up and reset phase until these ports are
properly configured .
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Pin description
STM8L101xx
Figure 4.
20-pin TSSOP package pinout
PC3 (HS) / USART_TX
1
20
PC2 (HS) / USART_RX
PC4 (HS) / USART_CK/ CCO
2
19
PC1 / I²C_SCL
PA0 (HS) / SWIM / BEEP / IR_TIM
3
18
PC0 / I²C_SDA
NRST / PA1 (HS)
4
17
PB7 (HS) / SPI_MISO
PA2 (HS)
5
16
PB6 (HS) / SPI_MOSI
PA3 (HS)
6
15
PB5 (HS) / SPI_SCK
VSS
7
14
PB4 (HS) / SPI_NSS
VDD
8
13
PB3 (HS) /TIM2_TRIG /COMP2_CH2
PD0 (HS) / TIM3_CH2 / COMP1_CH3
9
12
PB2 (HS) / TIM2_CH2 / COMP2_CH1
PB0 (HS) / TIM2_CH1 / COMP1_CH1
10
11
PB1 (HS) / TIM3_CH1 / COMP1_CH2
1. HS corresponds to 20 mA high sink/source capability.
2. High sink LED driver capability available on PA0. Refer to the description of the IR_CR register in the
STM8L reference manual (RM0013).
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STM8L101xx
PC4 (HS) / USART_CK / CCO
PC3 (HS) / USART_TX
PC2 (HS) / USART_RX
PC1 / I²C_SCL
27
PC5 (HS)
28
PC6 (HS)
Standard 28-pin WFQFPN package pinout
PA0 (HS) / SWIM / BEEP / IR_TIM
Figure 5.
Pin description
26
25
24
23
22
PA3 (HS)
3
19
PB7 (HS) / SPI_MISO
PA4 (HS) / TIM2_BKIN
4
18
PB6 (HS) / SPI_MOSI
PA5 (HS) / TIM3_BKIN
5
17
PB5 (HS) / SPI_SCK
VSS
6
16
PB4 (HS) / SPI_NSS
VDD
7
15
PB3 (HS) / TIM2_TRIG / COMP2_CH2
8
9
10
11
12
13
14
PB2 (HS) / TIM2_CH2 / COMP2_CH1
PD4 (HS)
PB1 (HS) / TIM3_CH1 / COMP1_CH2
20
PB0 (HS) / TIM2_CH1 / COMP1_CH1
2
/ COMP2_CH4
PA2 (HS)
PD3(HS)
PC0 / I²C_SDA
PD2(HS) / COMP2_CH3
21
PD1 (HS) / TIM3_TRIG / COMP1_CH4
1
PD0 (HS) / TIM3_CH2 / COMP1_CH3
NRST / PA1 (HS)
1. HS corresponds to 20 mA high sink/source capability.
2. High sink LED driver capability available on PA0. Refer to the description of the IR_CR register in the
STM8L reference manual (RM0013).
Note:
The COMP_REF pin is not available in this standard 28-pin WFQFPN package. It is
available on Port A6 in the 28-pin WFQFPN package pinout for STM8L101G3U6ATR and
STM8L101G2U6ATR part numbers (Figure 6 on page 18).
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Pin description
STM8L101xx
PC4 (HS) / USART_CK / CCO
PC3 (HS) / USART_TX
PC2 (HS) / USART_RX
PC1 / I²C_SCL
27
PC5 (HS)
28
PC6 (HS)
28-pin WFQFPN package pinout for STM8L101G3U6ATR and
STM8L101G2U6ATR part numbers
PA0 (HS) / SWIM / BEEP / IR_TIM
Figure 6.
26
25
24
23
22
PD4 (HS)
PA3 (HS)
3
19
PB7 (HS) / SPI_MISO
PA4 (HS) / TIM2_BKIN
4
18
PB6 (HS) / SPI_MOSI
PA6 (HS) / COMP_REF
5
17
PB5 (HS) / SPI_SCK
VSS
6
16
PB4 (HS) / SPI_NSS
VDD
7
15
PB3 (HS) / TIM2_TRIG / COMP2_CH2
8
9
10
11
12
13
14
PB2 (HS) / TIM2_CH2 / COMP2_CH1
20
PB1 (HS) / TIM3_CH1 / COMP1_CH2
2
PB0 (HS) / TIM2_CH1 / COMP1_CH1
PA2 (HS)
PD2(HS) / COMP2_CH3
PC0 / I²C_SDA
PD3(HS) / COMP2_CH4
21
PD1 (HS) / TIM3_TRIG / COMP1_CH4
1
PD0 (HS) / TIM3_CH2 / COMP1_CH3
NRST / PA1 (HS)
1. HS corresponds to 20 mA high sink/source capability.
2. High sink LED driver capability available on PA0. Refer to the description of the IR_CR register in the
STM8L reference manual (RM0013).
Warning:
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For the STM8L101G3U6ATR and STM8L101G2U6ATR part
numbers (devices with COMP_REF pin), all ports available on
32-pin packages must be considered as active ports. To avoid
spurious effects, you have to configure them as input pull-up.
A small increase in consumption (typ. < 300 µA) may occur
during the power up and reset phase until these ports are
properly configured .
Doc ID 15275 Rev 7
STM8L101xx
PC0 / I²C_SDA
PC1 / I²C_SCL
PC2 (HS) / USART_RX
PC3 (HS) / USART_TX
31 30 29 28
PC4 (HS) / USART_CK / CCO
PC6 (HS)
32
PC5 (HS)
PA0 (HS) / SWIM / BEEP / IR_TIM
32-pin package pinout
27 26 25
PD7 (HS)
PA2 (HS)
2
23
PD6 (HS)
PA3 (HS)
PA4 (HS) / TIM2_BKIN
3
22
PD5 (HS)
4
21
PA5 (HS) / TIM3_BKIN
5
20
PD4 (HS)
PB7 (HS) / SPI_MISO
PA6 (HS) / COMP_REF
VSS
6
19
PB6 (HS) / SPI_MOSI
7
18
PB5 (HS) / SPI_SCK
VDD
8
17
PB4 (HS) / SPI_NSS
PB3 (HS) / TIM2_TRIG / COMP2_CH2
PB2 (HS) / TIM2_CH2 / COMP2_CH1
PB0 (HS) / TIM2_CH1 / COMP1_CH1
14 15 16
PD3 (HS) / COMP2_CH4
10 11 12 13
PD2 (HS) / / COMP2_CH3
9
PB1 (HS) / TIM3_CH1 / COMP1_CH2
24
PD0 (HS) / TIM3_CH2 / COMP1_CH3
1
NRST / PA1 (HS)
PD1 (HS) / TIM3_TRIG / COMP1_CH4
Figure 7.
Pin description
1. Example given for the WFQFPN32 package. The pinout is the same for the LQFP32 package.
2. HS corresponds to 20 mA high sink/source capability.
3. High sink LED driver capability available on PA0. Refer to the description of the IR_CR register in the
STM8L reference manual (RM0013).
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Pin description
STM8L101xx
Table 3.
Legend/abbreviation for table 4
Type
I= input, O = output, S = power supply
Input
CM = CMOS
Output
HS = high sink/source (20 mA)
Level
Port and control Input
configuration
Output
float = floating, wpu = weak pull-up
T = true open drain, OD = open drain, PP = push pull
Reset state is shown in bold.
STM8L101xx pin description
1
1
4
1
1
1
NRST/PA1(2)
I/O
2
2
5
2
2
2
PA2
I/O X
X
3
-
6
3
3
3
PA3
I/O X
-
-
-
4
4
4
PA4/TIM2_BKIN
-
-
-
5
-
5
-
3
-
-
5
4
4
7
6
5
5
8
6
6
-
Main function
(after reset)
PP
OD
High sink/source
Output
Ext. interrupt
floating
Pin name
Type
Input
WFQFPN32 or LQFP32
WFQFPN28 with COMP_REF(1)
standard WFQFPN28
TSSOP20
UFQFPN20 with COMP_REF(1)
standard UFQFPN20
Pin number
wpu
Table 4.
Alternate function
HS X
X
Reset
X
HS X
X
Port A2
X
X
HS X
X
Port A3
I/O X
X
X
HS X
X
Port A4
Timer 2 - break input
PA5/TIM3_BKIN
I/O X
X
X
HS X
X
Port A5
Timer 3 - break input
6
PA6/COMP_REF
I/O X
X
X
HS X
X
Port A6
Comparator external
reference
6
7
VSS
S
Ground
7
7
8
VDD
S
Power supply
9
8
8
9
PD0/TIM3_CH2/
COMP1_CH3
I/O X
X
X
HS X
X
Port D0
Timer 3 - channel 2 /
Comparator 1 channel 3
-
-
9
9
10
PD1/TIM3_TRIG/
COMP1_CH4
I/O X
X
X
HS X
X
Port D1
Timer 3 - trigger /
Comparator 1 channel 4
-
-
-
10 10 11
PD2/
COMP2_CH3
I/O X
X
X
HS X
X
Port D2
Comparator 2 channel 3
-
-
-
11 11 12
PD3/
COMP2_CH4
I/O X
X
X
HS X
X
Port D3
Comparator 2 channel 4
7
7
10 12 12 13
PB0/TIM2_CH1/
COMP1_CH1
I/O X
X
X
HS X
X
Port B0
Timer 2 - channel 1 /
Comparator 1 channel 1
20/77
Doc ID 15275 Rev 7
PA1
STM8L101xx
Table 4.
Pin description
STM8L101xx pin description (continued)
Input
Output
X
HS X
X
Port B1
Timer 3 - channel 1 /
Comparator 1 channel 2
9
9
12 14 14 15
PB2/ TIM2_CH2/
COMP2_CH1/
I/O X
X
X
HS X
X
Port B2
Timer 2 - channel 2 /
Comparator 2 channel 1
10
10
13 15 15 16
PB3/TIM2_TRIG/
COMP2_CH2
I/O X
X
X
HS X
X
Port B3
Timer 2 - trigger /
Comparator 2 channel 2
11
11
14 16 16 17
PB4/SPI_NSS
I/O X
X
X
HS X
X
Port B4
SPI master/slave
select
12
12
15 17 17 18
PB5/SPI_SCK
I/O X
X
X
HS X
X
Port B5
SPI clock
13
13
16 18 18 19
PB6/SPI_MOSI
I/O X
X
X
HS X
X
Port B6
SPI master out/
slave in
14
14
17 19 19 20
PB7/SPI_MISO
I/O X
X
X
HS X
X
Port B7
SPI master in/ slave
out
-
-
-
20 20 21
PD4
I/O X
X
X
HS X
X
Port D4
-
-
-
-
-
22
PD5
I/O X
X
X
HS X
X
Port D5
-
-
-
-
-
23
PD6
I/O X
X
X
HS X
X
Port D6
-
-
-
-
-
24
PD7
I/O X
X
X
HS X
X
Port D7
15
15
18 21 21 25
PC0/I2C_SDA
I/O X
X
X
PP
X
OD
I/O X
High sink/source
PB1/TIM3_CH1/
COMP1_CH2
Ext. interrupt
11 13 13 14
wpu
8
floating
8
Pin name
Type
Alternate function
TSSOP20
Main function
(after reset)
WFQFPN32 or LQFP32
WFQFPN28 with COMP_REF(1)
standard WFQFPN28
UFQFPN20 with COMP_REF(1)
standard UFQFPN20
Pin number
T
(3)
Port C0
I2C data
(3)
Port C1
I2C clock
16
16
19 22 22 26
PC1/I2C_SCL
I/O X
X
X
T
17
17
20 23 23 27
PC2/USART_RX
I/O X
X
X
HS X
X
Port C2
USART receive
18
18
1
24 24 28
PC3/USART_TX
I/O X
X
X
HS X
X
Port C3
USART transmit
19
19
2
25 25 29
PC4/USART_CK/
I/O X
CCO
X
X
HS X
X
Port C4
USART synchronous
clock / Configurable
clock output
-
-
-
26 26 30
PC5
X
X
HS X
X
Port C5
I/O X
Doc ID 15275 Rev 7
21/77
Pin description
STM8L101xx pin description (continued)
-
20
-
20
-
3
27 27 31
PC6
I/O X
28 28 32
PA0/SWIM/BEEP/
I/O X
IR_TIM (4)
X
X
X
X
HS X
HS(
4)
X
X
X
Main function
(after reset)
PP
OD
High sink/source
Output
Ext. interrupt
floating
Pin name
Type
WFQFPN32 or LQFP32
Input
WFQFPN28 with COMP_REF(1)
standard WFQFPN28
TSSOP20
UFQFPN20 with COMP_REF(1)
standard UFQFPN20
Pin number
wpu
Table 4.
STM8L101xx
Alternate function
Port C6
Port A0
SWIM input and output /Beep output/Timer Infrared
output
1. Please refer to the warning below.
2. When the PA1/NRST pin is used as general purpose (PA1), it can be configured only as output open-drain or push-pull, not
as a general purpose input. Refer to Section 7.1.2: Configuring NRST/PA1 pin as general purpose output.
3. In the open-drain output column, ‘T’ defines a true open-drain I/O (P-buffer and protection diode to VDD are not
implemented).
4. High sink LED driver capability available on PA0.
Warning:
22/77
For the STM8L101F2U6ATR, STM8L101F3U6ATR,
STM8L101G2U6ATR and STM8L101G3U6ATR part numbers
(devices with COMP_REF pin), all ports available on 32-pin
packages must be considered as active ports. To avoid
spurious effects, you have to configure them as input pull-up.
A small increase in consumption (typ. < 300 µA) may occur
during the power up and reset phase until these ports are
properly configured .
Doc ID 15275 Rev 7
STM8L101xx
5
Memory and register map
Memory and register map
Figure 8.
Memory map
0x00 0000
0x00 05FF
0x00 0600
RAM
(1.5 Kbytes) (1)
including
Stack
(up to 513 bytes) (1)
Reserved
0x00 47FF
0x00 4800
Option bytes
0x00 48FF
0x 004900
Reserved
0x00 49FF
0x00 5000
GPIO and peripheral registers(2)
0x00 57FF
0x00 5800
Reserved
0x00 7EFF
0x00 7F00
0x00 7FFF
0x00 8000
0x00 807F
0x00 8080
CPU/SWIM/Debug/ITC
Registers
Interrupt vectors
Flash program memory
(up to 8 Kbytes) (1)
including
Data EEPROM
(up to 2 Kbytes)
0x00 9FFF
1. Table 5 lists the boundary addresses for each memory size. The top of the stack is at the RAM end
address.
2. Refer to Table 7 for an overview of hardware register mapping, to Table 6 for details on I/O port hardware
registers, and to Table 8 for information on CPU/SWIM/debug module controller registers.
Doc ID 15275 Rev 7
23/77
Memory and register map
Table 5.
STM8L101xx
Flash and RAM boundary addresses
Memory area
Size
Start Address
End address
RAM
1.5 Kbytes
0x00 0000
0x00 05FF
4 Kbytes
0x00 8000
0x00 8FFF
8 Kbytes
0x00 8000
0x00 9FFF
Flash program memory
Table 6.
Register label
Register name
Reset
status
0x00 5000
PA_ODR
Port A data output latch register
0x00
0x00 5001
PA_IDR
Port A input pin value register
0xxx
PA_DDR
Port A data direction register
0x00
0x00 5003
PA_CR1
Port A control register 1
0x00
0x00 5004
PA_CR2
Port A control register 2
0x00
0x00 5005
PB_ODR
Port B data output latch register
0x00
0x00 5006
PB_IDR
Port B input pin value register
0xxx
PB_DDR
Port B data direction register
0x00
0x00 5008
PB_CR1
Port B control register 1
0x00
0x00 5009
PB_CR2
Port B control register 2
0x00
0x00 500A
PC_ODR
Port C data output latch register
0x00
0x00 500B
PC_IDR
Port C input pin value register
0xxx
PC_DDR
Port C data direction register
0x00
0x00 500D
PC_CR1
Port C control register 1
0x00
0x00 500E
PC_CR2
Port C control register 2
0x00
0x00 500F
PD_ODR
Port D data output latch register
0x00
0x00 5010
PD_IDR
Port D input pin value register
0xxx
PD_DDR
Port D data direction register
0x00
0x00 5012
PD_CR1
Port D control register 1
0x00
0x00 5013
PD_CR2
Port D control register 2
0x00
Address
0x00 5002
0x00 5007
0x00 500C
0x00 5011
24/77
I/O Port hardware register map
Block
Port A
Port B
Port C
Port D
Doc ID 15275 Rev 7
STM8L101xx
Memory and register map
Table 7.
General hardware register map
Register label
Register name
Reset
status
0x00 5050
FLASH_CR1
Flash control register 1
0x00
0x00 5051
FLASH_CR2
Flash control register 2
0x00
FLASH _PUKR
Flash Program memory unprotection
register
0x00
0x00 5053
FLASH _DUKR
Data EEPROM unprotection register
0x00
0x00 5054
FLASH _IAPSR
Flash in-application programming status
register
0xX0
Address
0x00 5052
Block
Flash
0x00 5065
to
0x00 509F
Reserved area (59 bytes)
0x00 50A0
EXTI_CR1
External interrupt control register 1
0x00
0x00 50A1
EXTI_CR2
External interrupt control register 2
0x00
EXTI_CR3
External interrupt control register 3
0x00
0x00 50A3
EXTI_SR1
External interrupt status register 1
0x00
0x00 50A4
EXTI_SR2
External interrupt status register 2
0x00
0x00 50A5
EXTI_CONF
External interrupt port select register
0x00
WFE_CR1
WFE control register 1
0x00
WFE_CR2
WFE control register 2
0x00
0x00 50A2
ITC-EXTI
0x00 50A6
WFE
0x00 50A7
0x00 50A8
to
0x00 50AF
Reserved area (8 bytes)
0x00 50B0
RST_CR
Reset control register
0x00
RST_SR
Reset status register
0x01
RST
0x00 50B1
0x00 50B4
to
0x00 50BF
Reserved area (12 bytes)
0x00 50C0
0x00 50C1
to
0x00 50C2
0x00 50C3
CLK_CKDIVR
Clock divider register
Reserved area (2 bytes)
CLK
CLK_PCKENR
Peripheral clock gating register
0x00 50C4
0x00 50C5
0x00 50C7
to
0x00 50DF
0x03
0x00
Reserved (1 byte)
CLK_CCOR
Configurable clock control register
0x00
Reserved area (18 bytes)
Doc ID 15275 Rev 7
25/77
Memory and register map
Table 7.
Address
STM8L101xx
General hardware register map (continued)
Block
0x00 50E0
0x00 50E1
IWDG
0x00 50E2
Register label
Register name
Reset
status
IWDG_KR
IWDG Key register
0xXX
IWDG_PR
IWDG Prescaler register
0x00
IWDG_RLR
IWDG Reload register
0xFF
0x00 50E3
to
0x00 50EF
Reserved area (13 bytes)
0x00 50F0
0x00 50F1
AWU
0x00 50F2
0x00 50F3
BEEP
AWU_CSR
AWU control/status register
0x00
AWU_APR
AWU asynchronous prescaler buffer
register
0x3F
AWU_TBR
AWU timebase selection register
0x00
BEEP_CSR
BEEP control/status register
0x1F
0x00 50F4
to
0x00 50FF
Reserved area (12 bytes)
0x00 5200
SPI_CR1
SPI control register 1
0x00
0x00 5201
SPI_CR2
SPI control register 2
0x00
SPI_ICR
SPI interrupt control register
0x00
0x00 5203
SPI_SR
SPI status register
0x02
0x00 5204
SPI_DR
SPI data register
0x00
0x00 5202
SPI
0x00 5205
to
0x00 520F
Reserved area (11 bytes)
0x00 5210
I2C_CR1
I2C control register 1
0x00
0x00 5211
I2C_CR2
I2C control register 2
0x00
0x00 5212
I2C_FREQR
I2C frequency register
0x00
0x00 5213
I2C_OARL
I2C Own address register low
0x00
0x00 5214
I2C_OARH
I2C Own address register high
0x00
0x00 5215
Reserved area (1 byte)
0x00 5216
I2C_DR
I2C data register
0x00
0x00 5217
I2C_SR1
I2C status register 1
0x00
0x00 5218
I2C_SR2
I2C status register 2
0x00
0x00 5219
I2C_SR3
I2C status register 3
0x00
0x00 521A
I2C_ITR
I2C interrupt control register
0x00
0x00 521B
I2C_CCRL
I2C Clock control register low
0x00
0x00 521C
I2C_CCRH
I2C Clock control register high
0x00
0x00 521D
I2C_TRISER
I2C TRISE register
0x02
I2C
26/77
Doc ID 15275 Rev 7
STM8L101xx
Memory and register map
Table 7.
Address
General hardware register map (continued)
Block
Register label
0x00 521E
to
0x00 522F
Register name
Reset
status
Reserved area (18 bytes)
0x00 5230
USART_SR
USART Status Register
0xC0
0x00 5231
USART_DR
USART Data Register
0xXX
0x00 5232
USART_BRR1
USART Baud Rate Register 1
0x00
USART_BRR2
USART Baud Rate Register 2
0x00
0x00 5234
USART_CR1
USART Control Register 1
0x00
0x00 5235
USART_CR2
USART Control Register 2
0x00
0x00 5236
USART_CR3
USART Control Register 3
0x00
0x00 5237
USART_CR4
USART Control Register 4
0x00
0x00 5233
USART
0x00 523B
to
0x00 524F
Reserved area (21 bytes)
Doc ID 15275 Rev 7
27/77
Memory and register map
Table 7.
STM8L101xx
General hardware register map (continued)
Register label
Register name
Reset
status
0x00 5250
TIM2_CR1
TIM2 Control register 1
0x00
0x00 5251
TIM2_CR2
TIM2 Control register 2
0x00
0x00 5252
TIM2_SMCR
TIM2 Slave Mode Control register
0x00
0x00 5253
TIM2_ETR
TIM2 external trigger register
0x00
0x00 5254
TIM2_IER
TIM2 Interrupt enable register
0x00
0x00 5255
TIM2_SR1
TIM2 Status register 1
0x00
0x00 5256
TIM2_SR2
TIM2 Status register 2
0x00
0x00 5257
TIM2_EGR
TIM2 Event Generation register
0x00
0x00 5258
TIM2_CCMR1
TIM2 Capture/Compare mode register 1
0x00
0x00 5259
TIM2_CCMR2
TIM2 Capture/Compare mode register 2
0x00
TIM2_CCER1
TIM2 Capture/Compare enable register 1
0x00
0x00 525B
TIM2_CNTRH
TIM2 Counter high
0x00
0x00 525C
TIM2_CNTRL
TIM2 Counter low
0x00
0x00 525D
TIM2_PSCR
TIM2 Prescaler register
0x00
0x00 525E
TIM2_ARRH
TIM2 Auto-reload register high
0xFF
0x00 525F
TIM2_ARRL
TIM2 Auto-reload register low
0xFF
0x00 5260
TIM2_CCR1H
TIM2 Capture/Compare register 1 high
0x00
0x00 5261
TIM2_CCR1L
TIM2 Capture/Compare register 1 low
0x00
0x00 5262
TIM2_CCR2H
TIM2 Capture/Compare register 2 high
0x00
0x00 5263
TIM2_CCR2L
TIM2 Capture/Compare register 2 low
0x00
0x00 5264
TIM2_BKR
TIM2 Break register
0x00
0x00 5265
TIM2_OISR
TIM2 Output idle state register
0x00
Address
Block
0x00 525A
TIM2
0x00 5256
to
0x00 527F
28/77
Reserved area (42 bytes)
Doc ID 15275 Rev 7
STM8L101xx
Memory and register map
Table 7.
General hardware register map (continued)
Register label
Register name
Reset
status
0x00 5280
TIM3_CR1
TIM3 Control register 1
0x00
0x00 5281
TIM3_CR2
TIM3 Control register 2
0x00
0x00 5282
TIM3_SMCR
TIM3 Slave Mode Control register
0x00
0x00 5283
TIM3_ETR
TIM3 external trigger register
0x00
0x00 5284
TIM3_IER
TIM3 Interrupt enable register
0x00
0x00 5285
TIM3_SR1
TIM3 Status register 1
0x00
0x00 5286
TIM3_SR2
TIM3 Status register 2
0x00
0x00 5287
TIM3_EGR
TIM3 Event Generation register
0x00
0x00 5288
TIM3_CCMR1
TIM3 Capture/Compare mode register 1
0x00
0x00 5289
TIM3_CCMR2
TIM3 Capture/Compare mode register 2
0x00
TIM3_CCER1
TIM3 Capture/Compare enable register 1
0x00
0x00 528B
TIM3_CNTRH
TIM3 Counter high
0x00
0x00 528C
TIM3_CNTRL
TIM3 Counter low
0x00
0x00 528D
TIM3_PSCR
TIM3 Prescaler register
0x00
0x00 528E
TIM3_ARRH
TIM3 Auto-reload register high
0xFF
0x00 528F
TIM3_ARRL
TIM3 Auto-reload register low
0xFF
0x00 5290
TIM3_CCR1H
TIM3 Capture/Compare register 1 high
0x00
0x00 5291
TIM3_CCR1L
TIM3 Capture/Compare register 1 low
0x00
0x00 5292
TIM3_CCR2H
TIM3 Capture/Compare register 2 high
0x00
0x00 5293
TIM3_CCR2L
TIM3 Capture/Compare register 2 low
0x00
0x00 5294
TIM3_BKR
TIM3 Break register
0x00
0x00 5295
TIM3_OISR
TIM3 Output idle state register
0x00
Address
Block
0x00 528A
TIM3
0x00 5296
to
0x00 52DF
Reserved area (74 bytes)
0x00 52E0
TIM4_CR1
TIM4 Control register 1
0x00
0x00 52E1
TIM4_CR2
TIM4 Control register 2
0x00
0x00 52E2
TIM4_SMCR
TIM4 Slave Mode Control Register
0x00
0x00 52E3
TIM4_IER
TIM4 Interrupt enable register
0x00
TIM4_SR1
TIM4 Status register 1
0x00
0x00 52E5
TIM4_EGR
TIM4 Event Generation register
0x00
0x00 52E6
TIM4_CNTR
TIM4 Counter
0x00
0x00 52E7
TIM4_PSCR
TIM4 Prescaler register
0x00
0x00 52E8
TIM4_ARR
TIM4 Auto-reload register low
0xFF
0x00 52E4
TIM4
Doc ID 15275 Rev 7
29/77
Memory and register map
Table 7.
Address
STM8L101xx
General hardware register map (continued)
Block
Register label
0x00 52E9
to
0x00 52FE
0x00 52FF
IR
COMP
0x00 5302
Table 8.
IR_CR
Infra-red control register
0x00
COMP_CR
Comparator control register
0x00
COMP_CSR
Comparator status register
0x00
COMP_CCS
Comparator channel selection register
0x00
CPU/SWIM/debug module/interrupt controller registers
Register label
Register name
Reset
status
0x00 7F00
A
Accumulator
0x00
0x00 7F01
PCE
Program counter extended
0x00
0x00 7F02
PCH
Program counter high
0x80
0x00 7F03
PCL
Program counter low
0x00
0x00 7F04
XH
X index register high
0x00
XL
X index register low
0x00
0x00 7F06
YH
Y index register high
0x00
0x00 7F07
YL
Y index register low
0x00
0x00 7F08
SPH
Stack pointer high
0x05
0x00 7F09
SPL
Stack pointer low
0xFF
0x00 7F0A
CC
Condition code register
0x28
Address
0x00 7F05
Block
CPU
0x00 7F0B
to
0x00 7F5F
0x00 7F60
Reserved area (85 bytes)
CFG
CFG_GCR
0x00 7F61
0x00 7F6F
Global configuration register
0x00
Reserved area (15 bytes)
0x00 7F70
ITC_SPR1
Interrupt Software priority register 1
0xFF
0x00 7F71
ITC_SPR2
Interrupt Software priority register 2
0xFF
0x00 7F72
ITC_SPR3
Interrupt Software priority register 3
0xFF
ITC_SPR4
Interrupt Software priority register 4
0xFF
ITC_SPR5
Interrupt Software priority register 5
0xFF
0x00 7F75
ITC_SPR6
Interrupt Software priority register 6
0xFF
0x00 7F76
ITC_SPR7
Interrupt Software priority register 7
0xFF
0x00 7F77
ITC_SPR8
Interrupt Software priority register 8
0xFF
0x00 7F73
0x00 7F74
30/77
Reset
status
Reserved area (23 bytes)
0x00 5300
0x00 5301
Register name
ITC-SPR
(1)
Doc ID 15275 Rev 7
STM8L101xx
Memory and register map
Table 8.
Address
CPU/SWIM/debug module/interrupt controller registers (continued)
Block
Register label
0x00 7F78
to
0x00 7F79
0x00 7F80
Register name
Reset
status
Reserved area (2 bytes)
SWIM
SWIM_CSR
0x00 7F81
to
0x00 7F8F
SWIM control status register
0x00
Reserved area (15 bytes)
0x00 7F90
DM_BK1RE
Breakpoint 1 register extended byte
0xFF
0x00 7F91
DM_BK1RH
Breakpoint 1 register high byte
0xFF
0x00 7F92
DM_BK1RL
Breakpoint 1 register low byte
0xFF
0x00 7F93
DM_BK2RE
Breakpoint 2 register extended byte
0xFF
0x00 7F94
DM_BK2RH
Breakpoint 2 register high byte
0xFF
DM_BK2RL
Breakpoint 2 register low byte
0xFF
0x00 7F96
DM_CR1
Debug module control register 1
0x00
0x00 7F97
DM_CR2
Debug module control register 2
0x00
0x00 7F98
DM_CSR1
Debug module control/status register 1
0x10
0x00 7F99
DM_CSR2
Debug module control/status register 2
0x00
0x00 7F9A
DM_ENFCTR
Enable function register
0xFF
0x00 7F95
DM
1. Refer to Table 7: General hardware register map on page 25 (addresses 0x00 50A0 to 0x00 50A5) for a
list of external interrupt registers.
Doc ID 15275 Rev 7
31/77
Interrupt vector mapping
STM8L101xx
6
Interrupt vector mapping
Table 9.
Interrupt mapping
IRQ
No.
Source
block
RESET
TRAP
0
1
Reset
Software interrupt
Wakeup
from
Active-halt
mode
Wakeup
from Wait
(WFI
mode)
Wakeup
from Wait
(WFE
mode)
Yes
Yes
Yes
Yes
0x00 8000
-
-
-
-
0x00 8004
Reserved
FLASH
2-3
4
Description
Wakeup
from Halt
mode
AWU
5
Vector
address
0x00 8008
Yes
(1)
0x00 800C
EOP/WR_PG_DIS
-
-
Yes
Reserved
-
-
-
-
0x00 8010
-0x00 8017
Auto wakeup from Halt
-
Yes
Yes
Yes(1)
0x00 8018
Reserved
-
-
-
-
0x00 801C
6
EXTIB
External interrupt port B
Yes
Yes
Yes
Yes
0x00 8020
7
EXTID
External interrupt port D
Yes
Yes
Yes
Yes
0x00 8024
8
EXTI0
External interrupt 0
Yes
Yes
Yes
Yes
0x00 8028
9
EXTI1
External interrupt 1
Yes
Yes
Yes
Yes
0x00 802C
10
EXTI2
External interrupt 2
Yes
Yes
Yes
Yes
0x00 8030
11
EXTI3
External interrupt 3
Yes
Yes
Yes
Yes
0x00 8034
12
EXTI4
External interrupt 4
Yes
Yes
Yes
Yes
0x00 8038
13
EXTI5
External interrupt 5
Yes
Yes
Yes
Yes
0x00 803C
14
EXTI6
External interrupt 6
Yes
Yes
Yes
Yes
0x00 8040
15
EXTI7
External interrupt 7
Yes
Yes
Yes
Yes
0x00 8044
16
Reserved
0x00 8048
17
Reserved
-
-
-
-
0x00 804C
-0x00 804F
Comparators
-
-
Yes
Yes(1)
0x00 8050
18
COMP
19
TIM2
Update
/Overflow/Trigger/Break
-
-
Yes
Yes
0x00 8054
20
TIM2
Capture/Compare
-
-
Yes
Yes
0x00 8058
Yes
Yes(1)
0x00 805C
(1)
0x00 8060
21
22
TIM3
TIM3
2324
25
26
32/77
TIM4
SPI
Update /Overflow/Break
-
-
Capture/Compare
-
-
Yes
Reserved
-
-
-
-
0x00 80640x00 806B
Update /Trigger
-
-
Yes
Yes(1)
0x00 806C
Yes
Yes(1)
0x00 8070
End of Transfer
Yes
Yes
Doc ID 15275 Rev 7
Yes
STM8L101xx
Table 9.
Interrupt vector mapping
Interrupt mapping (continued)
IRQ
No.
Source
block
27
USART
28
USART
29
I2C
Wakeup
from Halt
mode
Wakeup
from
Active-halt
mode
Wakeup
from Wait
(WFI
mode)
Wakeup
from Wait
(WFE
mode)
Transmission
complete/transmit data
register empty
-
-
Yes
Yes(1)
0x00 8074
Receive Register DATA
FULL/overrun/idle line
detected/parity error
-
-
Yes
Yes(1)
0x00 8078
Yes
Yes
Yes
Yes(1)
0x00 807C
Description
I2C interrupt(2)
Vector
address
1. In WFE mode, this interrupt is served if it has been previously enabled. After processing the interrupt, the processor goes
back to WFE mode. Section : Wait for event (WFE) mode on page 70.
2. The device is woken up from Halt or Active-halt mode only when the address received matches the interface address.
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Option bytes
7
STM8L101xx
Option bytes
Option Bytes contain configurations for device hardware features as well as the memory
protection of the device. They are stored in a dedicated row of the memory.
All option bytes can be modified only in ICP mode (with SWIM) by accessing the EEPROM
address. See Table 10 for details on option byte addresses.
Refer to the STM8L Flash programming manual (PM0054) and STM8 SWIM and Debug
Manual (UM0320) for information on SWIM programming procedures.
Table 10.
Addr.
Option bytes
Option name
Option
byte
No.
Option bits
7
6
5
4
3
2
1
0
Factory
default
setting
0x4800
Read-out
protection
(ROP)
OPT1
ROP[7:0]
0x00
0x4807
-
-
Must be programmed to 0x00
0x00
0x4802
UBC(User
Boot code size)
OPT2
UBC[7:0]
0x00
0x4803
DATASIZE
OPT3
DATASIZE[7:0]
0x00
0x4808
Independent
watchdog
option
OPT4
[1:0]
Table 11.
34/77
Reserved
IWDG
_HALT
IWDG
_HW
0x00
Option byte description
OPT1
ROP[7:0] Memory readout protection (ROP)
0xAA: Enable Readout protection (write access via SWIM protocol)
Refer to Read-out protection section in the STM8L reference manual
(RM0013) for details.
OPT2
UBC[7:0] Size of the user boot code area
0x00: no UBC
0x01-0x02: UBC contains only the interrupt vectors.
0x03: Page 0 and 1 reserved for the interrupt vectors. Page 2 is available to
store user boot code. Memory is write protected
...
0x7F - Page 0 to 126 reserved for UBC, memory is write protected
Refer to User boot area (UBC) section in the STM8L reference manual
(RM0013) for more details.
OPT3
DATASIZE[7:0] Size of the data EEPROM area
0x00: no data EEPROM area (1)
0x01 - 1 page reserved for data storage.(1)
... (1)
0x20 - 32 pages reserved for data storage.(1)
Refer to Data EEPROM (DATA) section in the STM8L reference manual
(RM0013) for more details.
Doc ID 15275 Rev 7
STM8L101xx
Option bytes
Table 11.
Option byte description (continued)
IWDG_HW: Independent watchdog
0: Independent watchdog activated by software
1: Independent watchdog activated by hardware
OPT4
IWDG_HALT: Independent window watchdog reset on Halt/Active-halt
0: Independent watchdog continues running in Halt/Active-halt mode
1: Independent watchdog stopped in Halt/Active-halt mode
1. 0x00 is the only allowed value for 4 Kbyte STM8L101xx devices.
Caution:
After a device reset, read access to the program memory is not guaranteed if address
0x4807 is not programmed to 0x00.
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Unique ID
8
STM8L101xx
Unique ID
devices feature a 96-bit unique device identifier which provides a reference number that is
unique for any device and in any context. The 96 bits of the identifier can never be altered by
the user.
The unique device identifier can be read in single bytes and may then be concatenated
using a custom algorithm.
The unique device identifier is ideally suited:
●
For use as serial numbers
●
For use as security keys to increase the code security in the program memory while
using and combining this unique ID with software crytograhic primitives and protocols
before programming the internal memory.
●
To activate secure boot processes
Table 12.
Address
0x4925
0x4926
0x4927
Content
description
Unique ID bits
7
6
5
4
3
U_ID[7:0]
X co-ordinate on
the wafer
U_ID[15:8]
U_ID[23:16]
0x4928
Y co-ordinate on
the wafer
0x4929
Wafer number
U_ID[39:32]
U_ID[31:24]
0x492A
U_ID[47:40]
0x492B
U_ID[55:48]
0x492C
U_ID[63:56]
0x492D
36/77
Unique ID registers (96 bits)
Lot number
U_ID[71:64]
0x492E
U_ID[79:72]
0x492F
U_ID[87:80]
0x4930
U_ID[95:88]
Doc ID 15275 Rev 7
2
1
0
STM8L101xx
Electrical parameters
9
Electrical parameters
9.1
Parameter conditions
Unless otherwise specified, all voltages are referred to VSS.
9.1.1
Minimum and maximum values
Unless otherwise specified the minimum and maximum values are guaranteed in the worst
conditions of ambient temperature, supply voltage and frequencies by tests in production on
100% of the devices with an ambient temperature at TA= 25 °C and TA = TA max (given by
the selected temperature range).
Note:
The values given at 85 °C <TA ≤ 125 °C are only valid for suffix 3 versions.
Data based on characterization results, design simulation and/or technology characteristics
are indicated in the table footnotes and are not tested in production. Based on
characterization, the minimum and maximum values refer to sample tests and represent the
mean value plus or minus three times the standard deviation (mean±3Σ).
9.1.2
Typical values
Unless otherwise specified, typical data are based on TA = 25 °C, VDD = 3 V. They are given
only as design guidelines and are not tested.
9.1.3
Typical curves
Unless otherwise specified, all typical curves are given only as design guidelines and are
not tested.
9.1.4
Loading capacitor
The loading conditions used for pin parameter measurement are shown in Figure 9.
Figure 9.
Pin loading conditions
STM8L PIN
50 pF
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Electrical parameters
9.1.5
STM8L101xx
Pin input voltage
The input voltage measurement on a pin of the device is described in Figure 10.
Figure 10. Pin input voltage
STM8L PIN
VIN
9.2
Absolute maximum ratings
Stresses above those listed as “absolute maximum ratings” may cause permanent damage
to the device. This is a stress rating only and functional operation of the device under these
conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability.
Table 13.
Voltage characteristics
Symbol
VDD- VSS
VIN
VESD
Ratings
Min
Max
-0.3
4.0
Input voltage on true open drain pins
(PC0 and PC1)
VSS-0.3
5.25
Input voltage on any other pin (1)
VSS-0.3
4.6
External supply voltage
Electrostatic discharge voltage
Unit
V
see Absolute maximum
ratings (electrical sensitivity)
on page 62
1. IINJ(PIN) must never be exceeded. This is implicitly insured if VIN maximum is respected. If VIN maximum
cannot be respected, the injection current must be limited externally to the IINJ(PIN) value. A positive
injection is induced by VIN>VDD while a negative injection is induced by VIN<VSS. For true open-drain pads,
there is no positive injection current, and the corresponding VIN maximum must always be respected.
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Doc ID 15275 Rev 7
STM8L101xx
Electrical parameters
Table 14.
Current characteristics
Symbol
Ratings
Max.
IVDD
Total current into VDD power line (source)
80
IVSS
Total current out of VSS ground line (sink)
80
Output current sunk by IR_TIM pin (with high sink LED
driver capability)
80
Output current sunk by any other I/O and control pin
25
Output current source by any I/Os and control pin
-25
IIO
IINJ(PIN)
(1)
ΣIINJ(PIN)
Injected current on any pin
(1)
(2)
Total injected current (sum of all I/O and control pins)
Unit
mA
±5
(2)
±25
1. IINJ(PIN) must never be exceeded. This is implicitly insured if VIN maximum is respected. If VIN maximum
cannot be respected, the injection current must be limited externally to the IINJ(PIN) value. A positive
injection is induced by VIN>VDD while a negative injection is induced by VIN<VSS. For true open-drain pads,
there is no positive injection current, and the corresponding VIN maximum must always be respected.
2. When several inputs are submitted to a current injection, the maximum ΣIINJ(PIN) is the absolute sum of the
positive and negative injected currents (instantaneous values). These results are based on
characterization with ΣIINJ(PIN) maximum current injection on four I/O port pins of the device.
Table 15.
Symbol
TSTG
TJ
Thermal characteristics
Ratings
Storage temperature range
Min
Unit
-65 to +150
°C
Maximum junction temperature
Doc ID 15275 Rev 7
150
39/77
Electrical parameters
9.3
STM8L101xx
Operating conditions
Subject to general operating conditions for VDD, and TA.
9.3.1
General operating conditions
Table 16.
General operating conditions
Symbol
fMASTER(1)
VDD
Parameter
Master clock frequency
PD(2)
Max
Unit
1.65 V ≤VDD < 3.6 V
2
16
MHz
1.65
3.6
V
LQFP32
-
288
WFQFPN32
-
288
WFQFPN28
-
286
TSSOP20
-
181
UFQFPN20
-
196
LQFP32
-
83
WFQFPN32
-
227
WFQFPN28
-
71
TSSOP20
-
45
UFQFPN20
-
49
1.65 V ≤VDD < 3.6 V
(6 suffix version)
− 40
85
1.65 V ≤VDD < 3.6 V
(3 suffix version)
− 40
125
-40 °C ≤TA ≤85 °C
(6 suffix version)
- 40
105
°C
-40 °C ≤TA ≤125 °C
(3 suffix version)
− 40
130
°C
mW
Power dissipation at TA= 125 °C for suffix
3 devices
TJ
Min
Standard operating voltage
Power dissipation at TA= 85 °C for suffix 6
devices
TA
Conditions
Temperature range
Junction temperature range
°C
1. fMASTER = fCPU
2. To calculate PDmax(TA) use the formula given in thermal characteristics PDmax=(TJmax -TA)/ΘJA with TJmax in this table and
ΘJA in table “Thermal characteristics”
40/77
Doc ID 15275 Rev 7
STM8L101xx
9.3.2
Electrical parameters
Power-up / power-down operating conditions
Table 17.
Operating conditions at power-up / power-down
Symbol
Parameter
Conditions
tVDD
VDD rise time rate
tTEMP
Reset release delay
Min
Typ
20
-
1300
µs/V
-
1
TBD
ms
VDD rising
Max
Unit
VPOR(1)
Power on reset
threshold
1.35
-
1.65(2)
V
VPDR(1)
Power down reset
threshold
1.40
-
1.60
V
1. Data based on characterization results, not tested in production.
2. Data guaranteed, each individual device tested in production.
9.3.3
Supply current characteristics
Total current consumption
The MCU is placed under the following conditions:
●
All I/O pins in input mode with a static value at VDD or VSS (no load)
●
All peripherals are disabled except if explicitly mentioned.
Subject to general operating conditions for VDD and TA.
Figure 12. IDD(RUN) vs. VDD@ fCPU = 16 MHz
@4 temperatures
1
3
0.9
2.9
0.8
2.8
0.7
2.7
0.6
0.5
0.4
-40°C
0.3
25°C
0.2
85°C
0.1
125°C
IDD(RUN)HSI [mA]
IDD(RUN)HSI [mA]
Figure 11. IDD(RUN) vs. VDD@ fCPU = 2 MHz
@4 temperatures
2.6
-40°C
2.5
25°C
2.4
85°C
2.3
125°C
2.2
2.1
0
1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
2
1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
VDD [V]
VDD [V]
ai17017
ai17018
1. Typical current consumption measured with code executed from Flash.
Doc ID 15275 Rev 7
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Electrical parameters
Table 18.
STM8L101xx
Total current consumption in Run mode (1)
Symbol Parameter
Conditions(2)
Typ
Max(3)
fMASTER = 2 MHz
0.39
0.6
fMASTER = 4 MHz
0.55
0.7
fMASTER = 8 MHz
0.9
1.2
fMASTER = 16 MHz
1.6
2.1(5)
fMASTER = 2 MHz
0.55
0.7
fMASTER = 4 MHz
0.88
1.8
fMASTER = 8 MHz
1.5
2.5
fMASTER = 16 MHz
2.7
3.5
Code executed from
RAM
Supply
current in
IDD (Run)
Run
mode(4)
Code executed from
Flash
Unit
mA
1. Based on characterization results, unless otherwise specified.
2. All peripherals off, VDD from 1.65 V to 3.6 V, HSI internal RC osc. , fCPU=fMASTER
3. Maximum values are given for TA = − 40 to 125 °C.
4. CPU executing typical data processing.
5. Data guaranteed, each individual device tested in production.
Table 19.
Symbol
Total current consumption in Wait mode(1)
Parameter
IDD (Wait) Supply
current in
Wait mode
Typ
Max(2)
fMASTER = 2 MHz
245
400
fMASTER = 4 MHz
300
450
fMASTER = 8 MHz
380
600
fMASTER = 16 MHz
510
800
Conditions
CPU not clocked,
all peripherals off,
HSI internal RC osc.
Unit
µA
1. Based on characterization results, unless otherwise specified.
2. Maximum values are given for TA = -40 to 125 °C.
Figure 13. IDD(WAIT) vs. VDD@ fCPU = 2 MHz
@4 temperatures
Figure 14. IDD(WAIT) vs. VDD@ fCPU = 16 MHz
@4 temperatures
600
300
550
250
-40°C
25°C
150
85°C
100
125°C
IDD(WFI)HSI [µA]
IDD(RUN)HSI [µA]
500
200
450
25°C
350
50
300
0
250
1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6
-40°C
400
85°C
125°C
200
1.6
VDD [V]
2.6
3.1
3.6
VDD [V]
ai17015
1. Typical current consumption measured with code executed from Flash.
42/77
2.1
Doc ID 15275 Rev 7
ai17016
STM8L101xx
Electrical parameters
Table 20.
Symbol
Total current consumption and timing in Halt and Active-halt mode at
VDD = 1.65 V to 3.6 V (1)(2)
Parameter
Conditions
Typ
Max
Unit
0.8
2
μA
TA = 55 °C
1
2.5
μA
TA = 85 °C
1.4
3.2
μA
TA = 105 °C
2.9
7.5
μA
TA = 125 °C
5.8
13
μA
2
-
mA
4
6.5
μs
TA = -40 °C to 25 °C
0.35
1.2(4)
μA
TA = 55 °C
0.6
1.8
μA
TA = 85 °C
1
2.5(4)
μA
TA = 105 °C
2.5
6.5
μA
5.4
12(4)
μA
TA = -40 °C to 25 °C
IDD(AH)
Supply current in Active-halt
mode
LSI RC osc.
(at 37 kHz)
Supply current during
IDD(WUFAH) wakeup time from Active-halt
mode
tWU(AH)(3)
IDD(Halt)
Wakeup time from Activehalt mode to run mode
Supply current in Halt mode
fCPU= 16 MHz
TA = 125 °C
IDD(WUFH)
Supply current during
wakeup time from Halt mode
2
-
mA
tWU(Halt)(3)
Wakeup time from Halt mode
fCPU = 16 MHz
to run mode
4
6.5
μs
1. TA = -40 to 125 °C, no floating I/O, unless otherwise specified.
2. Data based on characterization results, not tested in production.
3. Measured from interrupt event to interrupt vector fetch.
To get tWU for another CPU frequency use tWU(FREQ) = tWU(16 MHz) + 1.5 (TFREQ-T16 MHz).
The first word of interrupt routine is fetched 5 CPU cycles after tWU.
4. Data guaranteed, each individual device tested in production.
Figure 15. Typ. IDD(Halt) vs. VDD @ fCPU = 2 MHz and 16 MHz @4 temperatures
7
6
IDD(HALT) [µA]
-40°C
5
25°C
4
85°C
125°C
3
2
1
0
1.6
2.1
2.6
3.1
3.6
VDD [V]
ai17014b
1. Typical current consumption measured with code executed from Flash.
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Electrical parameters
STM8L101xx
Current consumption of on-chip peripherals
Measurement made for fMASTER = from 2 MHz to 16 MHz
Table 21.
Symbol
Peripheral current consumption
Parameter
(1)
IDD(TIM2)
TIM2 supply current
IDD(TIM3)
TIM3 supply current (1)
IDD(TIM4)
TIM4 timer supply current
IDD(USART)
USARTsupply current
IDD(SPI)
SPI supply current (2)
IDD(I²C1)
I2C supply current (2)
IDD(COMP)
Typ. VDD = 3.0 V
Unit
9
9
(1)
Comparator supply current
4
µA/MHz
(2)
7
4
4
(2)
20
µA
1. Data based on a differential IDD measurement between all peripherals off and a timer counter running at
16 MHz. The CPU is in Wait mode in both cases. No IC/OC programmed, no I/O pin toggling. Not tested in
production.
2. Data based on a differential IDD measurement between the on-chip peripheral when kept under reset and
not clocked and the on-chip peripheral when clocked and not kept under reset. The CPU is in Wait mode in
both cases. No I/O pin toggling. Not tested in production.
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Doc ID 15275 Rev 7
STM8L101xx
Clock and timing characteristics
Internal clock sources
Subject to general operating conditions for VDD, and TA.
High speed internal RC oscillator (HSI)
Table 22.
Symbol
fHSI
HSI oscillator characteristics (1)
Parameter
Conditions
Frequency
ACCHSI Accuracy of HSI
oscillator (factory
calibrated)
IDD(HSI)
Min
Typ
VDD = 3.0 V
-
16
VDD = 3.0 V, TA = 25 °C
(2)
-1
Max
Unit
-
MHz
(2)
1
%
VDD = 3.0 V, -10 °C ≤TA ≤ 85 °C
-2.5(2)
2(2)
%
VDD = 3.0 V, -10 °C ≤TA ≤ 125 °C
-4.5(2)
2(2)
%
-1.5(2)(3)
1.5(2)(3)
%
VDD = 3.0 V, -10 °C ≤TA ≤ 70 °C
-2(2)(3)
2(2)(3)
%
1.65 V ≤ VDD ≤ 3.6 V,
-40 °C ≤ TA ≤125 °C
-4.5(3)
3(3)
%
100(3)
µA
VDD = 3.0 V, 0 °C ≤TA ≤ 55 °C
HSI oscillator power
consumption
-
70
1. VDD = 3.0 V, TA = -40 to 125 °C unless otherwise specified.
2. Further characterization results expected.
3. Data based on characterization results, not tested in production.
Figure 16. Typical HSI frequency vs VDD @ 4 temperatures
17
HSI frequency [MHz]
9.3.4
Electrical parameters
16.8
-40°C
16.6
25°C
16.4
85°C
16.2
125°C
16
15.8
15.6
15.4
15.2
15
1.65 1.8 1.95 2.1 2.25 2.4 2.55 2.7 2.85
3
3.15 3.3 3.45 3.6
VDD [V]
ai17013
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Electrical parameters
STM8L101xx
Figure 17. Typical HSI accuracy at VDD = 3 V vs temperature
3.5%
3.0%
3V min
3V typical
3V max
2.5%
2.0%
1.5%
1.0%
0.5%
RC accuracy
0.0%
-0.5%
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
-1.0%
-1.5%
-2.0%
-2.5%
-3.0%
-3.5%
-4.0%
-4.5%
-5.0%
ai17021
Temperature (°C)
Figure 18. Typical HSI accuracy at VDD = 1.65 V to 3.6 V vs temperature
3.5%
Min 1.65V-3.6V
Max 1.65V-3.6V
3V typical
3.0%
2.5%
2.0%
1.5%
1.0%
0.5%
RC accuracy
0.0%
-0.5%
-50
-40
-30
-20
-10
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
-1.0%
-1.5%
-2.0%
-2.5%
-3.0%
-3.5%
-4.0%
-4.5%
-5.0%
ai17019
Temperature (°C)
Low speed internal RC oscillator (LSI)
Table 23.
Symbol
fLSI
LSI oscillator characteristics (1)
Parameter
Conditions
Frequency
tsu(LSI)
LSI oscillator wakeup time
fdrift(LSI)
LSI oscillator frequency
drift(2)
0 °C ≤TA ≤ 85°C
Min
Typ
Max
Unit
26
38
56
kHz
-
TBD
-
µs
-12
-
11
%
1. VDD = 1.65 V to 3.6 V, TA = -40 to 125 °C unless otherwise specified.
2. For each individual part, this value is the frequency drift from the initial measured frequency.
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STM8L101xx
Electrical parameters
Figure 19. Typical LSI RC frequency vs. VDD @ 4 temperatures
45
43
LSI frequency [MHz]
41
39
37
35
33
-40°C
31
25°C
29
85°C
27
125°C
25
1.6
2.1
2.6
3.1
3.6
VDD [V]
ai17012b
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Electrical parameters
9.3.5
STM8L101xx
Memory characteristics
TA = -40 to 125 °C unless otherwise specified.
Table 24.
RAM and hardware registers
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VRM
Data retention mode (1)
Halt mode (or Reset)
1.4
-
-
V
1. Minimum supply voltage without losing data stored in RAM (in Halt mode or under Reset) or in hardware
registers (only in Halt mode). Guaranteed by characterization, not tested in production.
Flash memory
Table 25.
Symbol
VDD
tprog
Iprog
tRET
Flash program memory
Parameter
Conditions
Min
Typ
fMASTER = 16 MHz
1.65
Programming time for 1 or 64 bytes (block)
erase/write cycles (on programmed byte)
Programming time for 1 to 64 bytes (block)
write cycles (on erased byte)
Operating voltage
(all modes, read/write/erase)
Unit
-
3.6
V
-
-
6
ms
-
-
3
ms
-
TA=+25 °C, VDD = 1.8 V
-
Data retention (program memory) after 10k
erase/write cycles
at TA = +85 °C
TRET = 55 °C
20(1)
-
-
Data retention (data memory) after 10k
erase/write cycles
at TA = +85 °C
TRET = 55 °C
20(1)
-
-
Data retention (data memory) after 300k
erase/write cycles
at TA = +125 °C
TRET = 85 °C
1(1)
-
-
See notes (1)(2)
10(1)
-
-
300(1)(4)
-
-
Erase/write cycles (data memory)
See notes
(1)(3)
1. Data based on characterization results, not tested in production.
2. Retention guaranteed after cycling is 10 years @ 55 °C.
3. Retention guaranteed after cycling is 1 year @ 55 °C.
4. Data based on characterization performed on the whole data memory (2 Kbytes).
48/77
(1)
TA=+25 °C, VDD = 3.0 V
Programming/ erasing consumption
Erase/write cycles (program memory)
NRW
Max
Doc ID 15275 Rev 7
0.7
mA
-
years
kcycles
STM8L101xx
9.3.6
Electrical parameters
I/O port pin characteristics
General characteristics
Subject to general operating conditions for VDD and TA unless otherwise specified. All
unused pins must be kept at a fixed voltage: using the output mode of the I/O for example or
an external pull-up or pull-down resistor.
Table 26.
I/O static characteristics (1)
Symbol
Parameter
VIL
Input low level voltage(2)
VIH
Input high level voltage (2)
Vhys
Schmitt trigger voltage hysteresis (3)
Ilkg
RPU
CIO
(7)
Input leakage current (4)
Weak pull-up equivalent resistor(6)
Conditions
Min
Typ
Max
Unit
Standard I/Os
VSS-0.3
-
0.3 x VDD
V
True open drain I/Os
VSS-0.3
-
0.3 x VDD
Standard I/Os
0.70 x VDD
-
VDD+0.3
True open drain I/Os
0.70 x VDD
-
5.25
Standard I/Os
-
200
-
True open drain I/Os
-
250
-
VSS≤VIN≤VDD
Standard I/Os
-
-
50 (5)
VSS≤VIN≤VDD
True open drain I/Os
-
-
200(5)
VSS≤VIN≤VDD
PA0 with high sink LED
driver capability
-
-
200(5)
30
45
60
kΩ
-
5
-
pF
V
mV
VIN=VSS
I/O pin capacitance
nA
1. VDD = 3.0 V, TA = -40 to 85 °C unless otherwise specified.
2. Data based on characterization results, not tested in production.
3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.
4. The max. value may be exceeded if negative current is injected on adjacent pins.
5. Not tested in production.
6. RPU pull-up equivalent resistor based on a resistive transistor (corresponding IPU current characteristics described in
Figure 22).
7. Data guaranteed by Design, not tested in production.
Doc ID 15275 Rev 7
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Electrical parameters
STM8L101xx
Figure 20. Typical VIL and VIH vs VDD (standard I/Os)
3
3
VIL and VIH [V]
VIL and VIH [V]
2.5
2.5
2
-40°C
-40°C
25°C
25°C
85°C
85°C
125°C
125°C
2
1.5
1.5
1
1
0.5
0.5
0
0
1.6
1.6
2.1
2.1
2.6
2.6
VDD [V]
VDD [V]
3.1
3.1
3.6
3.6
ai17011
Figure 21. Typical VIL and VIH vs VDD (true open drain I/Os)
3
-40°C
25°C
2.5
VIL and VIH [V]
85°C
125°C
2
1.5
1
0.5
0
1.6
2.1
2.6
VDD [V]
3.1
3.6
ai17010
Figure 22. Typical pull-up resistance RPU vs VDD @ 4 temperatures with VIN=VSS
60
-40°C
25°C
Pull-Up resistance [k ]
55
50
85°C
125°C
45
40
35
30
1.65 1.8 1.95 2.1 2.25 2.4 2.55 2.7 2.85
3
3.15 3.3 3.45 3.6
VDD [V]
ai17009
50/77
Doc ID 15275 Rev 7
STM8L101xx
Electrical parameters
Figure 23. Typical pull-up current Ipu vs VDD @ 4 temperatures with VIN=VSS
120
Pull-Up current [µA]
100
80
-40°C
25°C
85°C
125°C
60
40
20
0
1.65 1.8 1.95 2.1 2.25 2.4 2.55 2.7 2.85
VDD [V]
3
3.15 3.3 3.45 3.6
ai17008
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51/77
Electrical parameters
STM8L101xx
Output driving current
Subject to general operating conditions for VDD and TA unless otherwise specified.
Table 27.
Output driving current (standard ports)
I/O
Symbol
Type
Output low level voltage for an I/O pin
Standard
VOL (1)
Parameter
Conditions
Min
Max
Unit
IIO = +2 mA,
VDD = 3.0 V
-
0.45
V
IIO = +2 mA,
VDD = 1.8 V
-
0.45
V
IIO = +10 mA,
VDD = 3.0 V
-
1.2
V
VDD-0.45
-
V
IIO = -1 mA,
VDD = 1.8 V
VDD-0.45
-
V
IIO = -10 mA,
VDD = 3.0 V
VDD-1.2
-
V
IIO = -2 mA,
VDD = 3.0 V
VOH (2)
Output high level voltage for an I/O pin
1. The IIO current sunk must always respect the absolute maximum rating specified in Table 14 and the sum
of IIO (I/O ports and control pins) must not exceed IVSS.
2. The IIO current sourced must always respect the absolute maximum rating specified in Table 14 and the
sum of IIO (I/O ports and control pins) must not exceed IVDD.
Table 28.
Output driving current (true open drain ports)
Open drain
I/O
Symbol
Type
VOL
(1)
Parameter
Output low level voltage for an I/O pin
Conditions
Min
Max
Unit
IIO = +3 mA,
VDD = 3.0 V
-
0.45
V
IIO = +1 mA,
VDD = 1.8 V
-
0.45
V
1. The IIO current sunk must always respect the absolute maximum rating specified in Table 14 and the sum
of IIO (I/O ports and control pins) must not exceed IVSS.
Table 29.
Output driving current (PA0 with high sink LED driver capability)
IR
I/O
Symbol
Type
VOL (1)
Parameter
Output low level voltage for an I/O pin
Conditions
Min
Max
Unit
IIO = +20 mA,
VDD = 2.0 V
-
0.9
V
1. The IIO current sunk must always respect the absolute maximum rating specified in Table 14 and the sum
of IIO (I/O ports and control pins) must not exceed IVSS.
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Doc ID 15275 Rev 7
STM8L101xx
Electrical parameters
Figure 24. Typ. VOL @ VDD = 3.0 V (standard
ports)
Figure 25. Typ. VOL @ VDD = 1.8 V (standard
ports)
-40°C
0.5
1.5
25°C
-40°C
1.25
85°C
0.4
125°C
25°C
1
85°C
0.3
D
B
T
VOL [V]
125°C
0.75
0.2
0.5
0.1
0.25
0
0
0
5
10
15
20
0
25
1
2
3
4
5
6
7
IOL [mA]
IOL [mA]
ai17004
ai17005
Figure 26. Typ. VOL @ VDD = 3.0 V (true open
drain ports)
Figure 27. Typ. VOL @ VDD = 1.8 V (true open
drain ports)
0.5
0.5
-40°C
25°C
0.4
0.4
-40°C
85°C
25°C
125°C
0.3
85°C
VOL [V]
VOL [V]
0.3
0.2
125°C
0.2
0.1
0.1
0
D
B
T
0
0
1
2
3
4
5
6
0
0.5
1
IOL [mA]
1.5
2
2.5
3
IOL [mA]
ai17002
ai17003
Figure 28. Typ. VDD - VOH @ VDD = 3.0 V
(standard ports)
Figure 29. Typ. VDD - VOH @ VDD = 1.8 V
(standard ports)
2
-40°C
-40°C
1.5
25°C
25°C
85°C
0.3
85°C
1.25
125°C
VDD - VOH [V]
VDD - VOH [V]
0.4
1.75
1
0.75
125°C
0.2
0.5
0.1
0.25
0
0
2
4
6
8
10
12
14
16
18
20
22
24
0
0
IOH [mA]
1
2
3
IOH [mA]
4
5
6
ai17001
Doc ID 15275 Rev 7
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Electrical parameters
STM8L101xx
NRST pin
The NRST pin input driver is CMOS. A permanent pull-up is present which is the same as
as RPU (see Table 26 on page 49)
Subject to general operating conditions for VDD and TA unless otherwise specified.
Table 30.
NRST pin characteristics
Symbol
VIL(NRST)
Parameter
Conditions
NRST input low level voltage (1)
(1)
VIH(NRST)
NRST input high level voltage
VOL(NRST)
NRST output low level voltage
RPU(NRST)
NRST pull-up equivalent resistor (2)
VF(NRST)
NRST input filtered pulse
tOP(NRST)
NRST output pulse width
VNF(NRST)
NRST input not filtered
IOL = 2 mA
(3)
pulse (3)
Min
Typ (1)
Max
VSS
-
0.8
1.4
-
VDD
-
-
VDD-0.8
30
45
60
kΩ
-
-
50
ns
20
-
-
300
-
-
Unit
V
ns
1. Data based on characterization results, not tested in production.
2. The RPU pull-up equivalent resistor is based on a resistive transistor (Figure 30). Corresponding IPU current
characteristics are described in Figure 31.
3. Data guaranteed by design, not tested in production.
Figure 30. Typical NRST pull-up resistance RPU vs VDD @ 4 temperatures
60
-40°C
25°C
Pull-Up resistance [k ]
55
85°C
125°C
50
45
40
35
30
1.65 1.8 1.95 2.1 2.25 2.4 2.55 2.7 2.85
3
3.15 3.3 3.45 3.6
VDD [V]
ai17007
54/77
Doc ID 15275 Rev 7
STM8L101xx
Electrical parameters
Figure 31. Typical NRST pull-up current Ipu vs VDD @ 4 temperatures
120
-40°C
25°C
100
Pull-Up current [µA]
85°C
125°C
80
60
40
20
0
1.65 1.8 1.95 2.1 2.25 2.4 2.55 2.7 2.85
3
3.15 3.3 3.45 3.6
VDD [V]
ai17006
The reset network shown in Figure 32 protects the device against parasitic resets. The user
must ensure that the level on the NRST pin can go below the VIL max. level specified in
Table 30. Otherwise the reset is not taken into account internally.
Figure 32. Recommended NRST pin configuration
VDD
RPU
RSTIN
EXTERNAL
RESET
CIRCUIT
0.01μF
Filter
INTERNAL RESET
STM8L
Doc ID 15275 Rev 7
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Electrical parameters
9.3.7
STM8L101xx
Communication interfaces
Serial peripheral interface (SPI)
Unless otherwise specified, the parameters given in Table 31 are derived from tests
performed under ambient temperature, fMASTER frequency and VDD supply voltage
conditions summarized in Section 9.3.1. Refer to I/O port characteristics for more details on
the input/output alternate function characteristics (NSS, SCK, MOSI, MISO).
Table 31.
Symbol
fSCK
1/tc(SCK)
tr(SCK)
tf(SCK)
tsu(NSS)(2)
th(NSS)
(2)
SPI characteristics
Parameter
Min
Max
Master mode
0
8
Slave mode
0
8
-
30
SPI clock frequency
SPI clock rise and fall time Capacitive load: C = 30 pF
NSS setup time
Slave mode
4 x TMASTER
-
NSS hold time
Slave mode
80
-
SCK high and low time
Master mode,
fMASTER = 8 MHz, fSCK= 4 MHz
105
145
Master mode
30
-
Slave mode
3
-
Master mode
15
-
Slave mode
0
-
(2)
tw(SCKH)
tw(SCKL)(2)
Conditions(1)
tsu(MI) (2)
tsu(SI)(2)
Data input setup time
th(MI) (2)
th(SI)(2)
Data input hold time
ta(SO)(2)(3)
Data output access time
Slave mode
-
3x TMASTER
tdis(SO)(2)(4)
30
-
Data output disable time
Slave mode
(2)
Data output valid time
Slave mode (after enable edge)
-
60
tv(MO)(2)
Data output valid time
Master mode (after enable
edge)
-
20
Slave mode (after enable edge)
15
-
Master mode (after enable
edge)
1
-
tv(SO)
th(SO)(2)
th(MO)(2)
Data output hold time
Unit
MHz
ns
1. Parameters are given by selecting 10 MHz I/O output frequency.
2. Values based on design simulation and/or characterization results, and not tested in production.
3. Min time is for the minimum time to drive the output and the max time is for the maximum time to validate the data.
4. Min time is for the minimum time to invalidate the output and the max time is for the maximum time to put the data in Hi-Z.
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Doc ID 15275 Rev 7
STM8L101xx
Electrical parameters
Figure 33. SPI timing diagram - slave mode and CPHA = 0
NSS input
SCK Input
tSU(NSS)
CPHA= 0
CPOL=0
tc(SCK)
th(NSS)
tw(SCKH)
tw(SCKL)
CPHA= 0
CPOL=1
tv(SO)
ta(SO)
MISO
OUT P UT
tr(SCK)
tf(SCK)
th(SO)
MS B O UT
BI T6 OUT
tdis(SO)
LSB OUT
tsu(SI)
MOSI
I NPUT
B I T1 IN
M SB IN
LSB IN
th(SI)
ai14134
Figure 34. SPI timing diagram - slave mode and CPHA = 1(1)
NSS input
SCK Input
tSU(NSS)
CPHA=1
CPOL=0
CPHA=1
CPOL=1
tc(SCK)
tw(SCKH)
tw(SCKL)
tv(SO)
ta(SO)
MISO
OUT P UT
MS B O UT
tsu(SI)
MOSI
I NPUT
th(NSS)
th(SO)
BI T6 OUT
tr(SCK)
tf(SCK)
tdis(SO)
LSB OUT
th(SI)
M SB IN
B I T1 IN
LSB IN
ai14135
1. Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
Doc ID 15275 Rev 7
57/77
Electrical parameters
STM8L101xx
Figure 35. SPI timing diagram - master mode(1)
High
NSS input
SCK Input
SCK Input
tc(SCK)
CPHA= 0
CPOL=0
CPHA= 0
CPOL=1
CPHA=1
CPOL=0
CPHA=1
CPOL=1
tsu(MI)
MISO
INP UT
tw(SCKH)
tw(SCKL)
MS BIN
tr(SCK)
tf(SCK)
BI T6 IN
LSB IN
th(MI)
MOSI
OUTUT
M SB OUT
tv(MO)
B I T1 OUT
LSB OUT
th(MO)
ai14136
1. Measurement points are done at CMOS levels: 0.3VDD and 0.7VDD.
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Doc ID 15275 Rev 7
STM8L101xx
Electrical parameters
Inter IC control interface (I2C)
Subject to general operating conditions for VDD, fMASTER, and TA unless otherwise specified.
The STM8L I2C interface meets the requirements of the Standard I2C communication
protocol described in the following table with the restriction mentioned below:
Refer to I/O port characteristics for more details on the input/output alternate function
characteristics (SDA and SCL).
Table 32.
Symbol
I2C characteristics
Standard mode
I2C
Parameter
Min(2)
Max
(2)
Fast mode I2C(1)
Unit
Min
(2)
Max
tw(SCLL)
SCL clock low time
4.7
-
1.3
-
tw(SCLH)
SCL clock high time
4.0
-
0.6
-
tsu(SDA)
SDA setup time
250
-
100
-
-
(4)
(3)
(2)
μs
900 (3)
th(SDA)
SDA data hold time
tr(SDA)
tr(SCL)
SDA and SCL rise time
-
1000
-
300
tf(SDA)
tf(SCL)
SDA and SCL fall time
-
300
-
300
th(STA)
START condition hold time
4.0
-
0.6
-
tsu(STA)
Repeated START condition setup
time
4.7
-
0.6
-
tsu(STO)
STOP condition setup time
4.0
-
0.6
-
μs
STOP to START condition time (bus
free)
4.7
-
1.3
-
μs
-
400
-
400
pF
tw(STO:STA)
Cb
0
Capacitive load for each bus line
1. fSCK must be at least 8 MHz to achieve max fast
I 2C
0
ns
μs
speed (400 kHz).
2. Data based on standard I2C protocol requirement, not tested in production.
3. The maximum hold time of the START condition has only to be met if the interface does not stretch the low
period of SCL signal.
4. The device must internally provide a hold time of at least 300 ns for the SDA signal in order to bridge the
undefined region of the falling edge of SCL).
Note:
For speeds around 200 kHz, achieved speed can have ± 5% tolerance
For other speed ranges, achieved speed can have ± 2% tolerance
The above variations depend on the accuracy of the external components used.
Doc ID 15275 Rev 7
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Electrical parameters
STM8L101xx
Figure 36. Typical application with I2C bus and timing diagram 1)
VDD
4.7kΩ
I
2C
VDD
4.7kΩ
BUS
100Ω
SDA
100Ω
SCL
STM8L
REPEATED START
START
tsu(STA)
tw(STO:STA)
START
SDA
tr(SDA)
tf(SDA)
tsu(SDA)
STOP
th(SDA)
SCL
th(STA)
tw(SCKH)
tw(SCKL)
tr(SCK)
tsu(STO)
tf(SCK)
1. Measurement points are done at CMOS levels: 0.3 x VDD and 0.7 x VDD
9.3.8
Comparator characteristics
Table 33.
Comparator characteristics
Symbol
Parameter
Conditions
Min (1)
Typ
Max(1)
Unit
VIN(COMP_REF)
Comparator external reference
-0.1
-
VDD-1.25
V
VIN
Comparator input voltage range
-0.25
-
VDD+0.25
V
Comparator offset error
-
-
± 20
mV
Startup time (after BIAS_EN)
-
-
3(1)
µs
Analog comparator consumption
-
-
25(1)
µA
Analog comparator consumption
during power-down
-
-
60(1)
nA
-
-
2(1)
µs
Voffset(2)
tSTART
IDD(COMP)
tpropag(2)
Comparator propagation delay
100 mV input step
with 5 mV overdrive,
input rise time = 1 ns
1. Data guaranteed by design, not tested in production.
2. The comparator accuracy depends on the environment. In particular, the following cases may reduce the accuracy of the
comparator and must be avoided:
– Negative injection current on the I/Os close to the comparator inputs
– Switching on I/Os close to the comparator inputs
– Negative injection current on not used comparator input.
– Switching with a high dV/dt on not used comparator input.
These phenomena are even more critical when a big external serial resistor is added on the inputs.
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STM8L101xx
9.3.9
Electrical parameters
EMC characteristics
Susceptibility tests are performed on a sample basis during product characterization.
Functional EMS (electromagnetic susceptibility)
Based on a simple running application on the product (toggling 2 LEDs through I/O ports),
the product is stressed by two electromagnetic events until a failure occurs (indicated by the
LEDs).
●
ESD: Electrostatic discharge (positive and negative) is applied on all pins of the device
until a functional disturbance occurs. This test conforms with the IEC 61000-4-2
standard.
●
FTB: A burst of fast transient voltage (positive and negative) is applied to VDD and VSS
through a 100 pF capacitor, until a functional disturbance occurs. This test conforms
with the IEC 61000-4-4 standard.
A device reset allows normal operations to be resumed. The test results are given in the
table below based on the EMS levels and classes defined in application note AN1709.
Designing hardened software to avoid noise problems
EMC characterization and optimization are performed at component level with a typical
application environment and simplified MCU software. It should be noted that good EMC
performance is highly dependent on the user application and the software in particular.
Therefore it is recommended that the user applies EMC software optimization and
prequalification tests in relation with the EMC level requested for his application.
Prequalification trials:
Most of the common failures (unexpected reset and program counter corruption) can be
reproduced by manually forcing a low state on the NRST pin or the Oscillator pins for 1
second.
To complete these trials, ESD stress can be applied directly on the device, over the range of
specification values. When unexpected behavior is detected, the software can be hardened
to prevent unrecoverable errors occurring (see application note AN1015).
Table 34.
Symbol
EMS data
Parameter
Conditions
VFESD
Voltage limits to be applied on any I/O pin to
LQFP32, VDD = 3.3 V
induce a functional disturbance
VEFTB
Fast transient voltage burst limits to be
applied through 100 pF on VDD and VSS
pins to induce a functional disturbance
Doc ID 15275 Rev 7
Level/
Class
3B
LQFP32, VDD = 3.3 V, fHSI
3B
LQFP32, VDD = 3.3 V, fHSI/2
4A
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Electrical parameters
STM8L101xx
Electromagnetic interference (EMI)
Based on a simple application running on the product (toggling 2 LEDs through the I/O
ports), the product is monitored in terms of emission. This emission test is in line with the
norm SAE J 1752/3 which specifies the board and the loading of each pin.
Table 35.
Symbol
SEMI
EMI data (1)
Parameter
Peak level
Monitored
frequency band
Conditions
VDD = 3.6 V,
TA = +25 °C,
LQFP32
conforming to
IEC61967-2
Max vs.
Unit
16 MHz
0.1 MHz to 30 MHz
-3
30 MHz to 130 MHz
-6
130 MHz to 1 GHz
-5
SAE EMI Level
1
dBμV
-
1. Not tested in production.
Absolute maximum ratings (electrical sensitivity)
Based on two different tests (ESD and LU) using specific measurement methods, the
product is stressed in order to determine its performance in terms of electrical sensitivity.
For more details, refer to the application note AN1181.
Electrostatic discharge (ESD)
Electrostatic discharges (a positive then a negative pulse separated by 1 second) are
applied to the pins of each sample according to each pin combination. The sample size
depends on the number of supply pins in the device (3 parts*(n+1) supply pin). One model
can be simulated: Human Body Model. This test conforms to the JESD22-A114A/A115A
standard.
Table 36.
Symbol
ESD absolute maximum ratings
Ratings
VESD(HBM)
Electrostatic discharge voltage
(human body model)
VESD(CDM)
Electrostatic discharge voltage
(charge device model)
Conditions
Doc ID 15275 Rev 7
Unit
2000
TA = +25 °C
1. Data based on characterization results, not tested in production.
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Maximum
value (1)
V
1000
STM8L101xx
Electrical parameters
Static latch-up
●
LU: 2 complementary static tests are required on 10 parts to assess the latch-up
performance. A supply overvoltage (applied to each power supply pin) and a current
injection (applied to each input, output and configurable I/O pin) are performed on each
sample. This test conforms to the EIA/JESD 78 IC latch-up standard. For more details,
refer to the application note AN1181.
Table 37.
Electrical sensitivities
Symbol
LU
9.4
Parameter
Static latch-up class
Class
II
Thermal characteristics
The maximum chip junction temperature (TJmax) must never exceed the values given in
Table 16: General operating conditions on page 40.
The maximum chip-junction temperature, TJmax, in degrees Celsius, may be calculated
using the following equation:
TJmax = TAmax + (PDmax x ΘJA)
Where:
●
TAmax is the maximum ambient temperature in ° C
●
ΘJA is the package junction-to-ambient thermal resistance in ° C/W
●
PDmax is the sum of PINTmax and PI/Omax (PDmax = PINTmax + PI/Omax)
●
PINTmax is the product of IDD and VDD, expressed in Watts. This is the maximum chip
internal power.
●
PI/Omax represents the maximum power dissipation on output pins
Where:
PI/Omax = Σ (VOL*IOL) + Σ((VDD-VOH)*IOH),
taking into account the actual VOL/IOL and VOH/IOH of the I/Os at low and high level in
the application.
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Electrical parameters
Table 38.
Symbol
ΘJA
STM8L101xx
Thermal characteristics(1)
Parameter
Value
Unit
Thermal resistance junction-ambient
UFQFPN 20 - 3 x 3 mm - 0.6 mm
102
°C/W
Thermal resistance junction-ambient
LQFP 32 - 7 x 7 mm
60
°C/W
Thermal resistance junction-ambient
WFQFPN 32 - 5 x 5 mm
22
°C/W
Thermal resistance junction-ambient
WFQFPN 28 - 4 x 4 mm
70
°C/W
Thermal resistance junction-ambient
TSSOP 20
110
°C/W
1. Thermal resistances are based on JEDEC JESD51-2 with 4-layer PCB in a natural convection
environment.
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Doc ID 15275 Rev 7
STM8L101xx
Package characteristics
10
Package characteristics
10.1
ECOPACK
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK® is an ST trademark.
10.2
Package mechanical data
Figure 37. WFQFPN32 - 32-lead very very thin fine
pitch quad flat no-lead package outline
(5 x 5)(1)(2)
Figure 38. WFQFPN32 recommended
footprint(1)(3)
Seating plane
C
ddd
C
A
A1
A3
D
e
16
9
17
8
E2
E
b
24
1
L
32
Pin # 1 ID
R = 0.30
D2
L
Bottom view
A0A3_ME
1. Drawing is not to scale.
2. The exposed pad must be soldered to the PCB. It is recommended to connect it to VSS.
3. Dimensions are in millimeters.
Table 39.
WFQFPN32 - 32-lead very very thin fine pitch quad flat no-lead package (5 x 5),
package mechanical data(1)
inches(2)
mm
Dim.
Min
Typ
Max
Min
Typ
Max
A(1)
0.70
0.75
0.80
0.0276
0.0295
0.0315
A1
0.00
0.02
0.05
0
0.0008
0.0020
b
0.18
0.23
0.28
0.0071
0.0091
0.0110
D
4.90
5.00
5.10
0.1929
0.1969
0.2008
D2
3.50
0.1378
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Package characteristics
Table 39.
STM8L101xx
WFQFPN32 - 32-lead very very thin fine pitch quad flat no-lead package (5 x 5),
package mechanical data(1) (continued)
inches(2)
mm
Dim.
Min
Typ
Max
Min
Typ
Max
E
4.90
5.00
5.10
0.1929
0.1969
0.2008
E2
3.20
3.45
3.70
0.1260
0.1358
0.1457
e
L
ddd
0.500
0.30
0.40
0.0197
0.50
0.0118
0.08
0.0157
0.0197
0.0031
Number of pins
N
32
1. Thickness valid for the WFQFPN32 package in the sampling phase. In the production phase, the UFQFPN32 package will
be used with a thickness equal to 0.6 mm.
2. Values in inches are converted from mm and rounded to 4 decimal digits.
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STM8L101xx
Package characteristics
Figure 39. LQFP32 - 32-pin low profile quad flat
package outline (7 x 7)(1)
Figure 40. LQFP32 recommended
footprint(1)(2)
Seating
plane
C
A A2
24
A1
c
b
ccc
C
17
16
25
0.25 mm
Gage plane
D
D1
L
A1
24
K
L1
D3
17
16
25
32
9
8
1
E3
32
Pin 1
identification
E1
E
9
1
8
5V_FT
e
5V_ME
1. Drawing is not to scale.
2. Dimensions are in millimeters.
Table 40.
LQFP32- 32-pin low profile quad flat package (7x7), package mechanical data
inches(1)
mm
Dim.
Min
Typ
A
Max
Min
Typ
1.6
A1
0.05
A2
1.35
b
0.3
c
0.09
D
8.8
D1
6.8
D3
Max
0.063
0.15
0.002
1.4
1.45
0.0531
0.0551
0.0571
0.37
0.45
0.0118
0.0146
0.0177
0.2
0.0035
9
9.2
0.3465
0.3543
0.3622
7
7.2
0.2677
0.2756
0.2835
5.6
0.0059
0.0079
0.2205
E
8.8
9
9.2
0.3465
0.3543
0.3622
E1
6.8
7
7.2
0.2677
0.2756
0.2835
E3
5.6
0.2205
e
0.8
0.0315
L
0.45
L1
K
ccc
0.6
0.75
0.0177
1
0.0°
3.5°
0.0236
0.0295
0.0394
7.0°
0.0°
0.1
3.5°
7.0°
0.0039
Number of pins
N
32
1. Values in inches are converted from mm and rounded to 4 decimal digits.
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Package characteristics
STM8L101xx
Figure 41. WFQFPN28 - 28-lead very very thin fine
pitch quad flat no-lead package outline
(4 x 4)
A
A3
Figure 42. WFQFPN28 recommended
footprint(1)(2)
ddd
A1
D
e
14
15
7
e
b
E
1
21
L2
L1
28
22
DG_ME b
1. Drawing is not to scale
2. Dimensions are in millimeters
Table 41.
WFQFPN28 - 28-lead very very thin fine pitch quad flat no-lead package (4 x 4),
package mechanical data(1)
inches(2)
mm
Dim.
Min
Typ
Max
Min
Typ
Max
A(1)
0.7
0.75
0.8
0.0276
0.0295
0.0315
A1
0
0.02
0.05
0
0.0008
0.002
A3
b
0.2
0.18
0.25
0.0079
0.3
0.0071
0.0098
D
4
0.1575
E
4
0.1575
e
0.5
0.0197
0.0118
L1
0.25
0.35
0.45
0.0098
0.0138
0.0177
L2
0.3
0.4
0.5
0.0118
0.0157
0.0197
ddd
0.08
0.0031
Number of pins
N
28
1. Thickness valid for the WFQFPN28 package in the sampling phase. In the production phase, the UFQFPN28 package will
be used with a thickness equal to 0.6 mm.
2. Values in inches are converted from mm and rounded to 4 decimal digits.
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STM8L101xx
Package characteristics
Figure 43. UFQFPN20 3 x 3 mm 0.6 mm package
outline (1)
Figure 44. UFQFPN20 recommended
footprint (1)(2)
L1
D
ddd
L4
e
10
A3
L2
5
11
e
b
E
1
15
20
16
L3
A1
A
BJ
A0A5_ME
1. Drawing is not to scale
2. Dimensions are in millimeters
Table 42.
UFQFPN20 3 x 3 mm 0.6 mm mechanical data
inches(1)
millimeters
Symbol
Min
Typ
Max
Min
Typ
D
2.900
3.000
3.100
0.1181
E
2.900
3.000
3.100
0.1181
A
0.500
0.550
0.600
0.0197
0.0217
0.0236
A1
0
0.020
0.050
0
0.0008
0.002
A3
0.152
0.006
e
0.500
0.0197
Max
L1
0.500
0.550
0.600
0.0197
0.0217
0.0236
L2
0.300
0.350
0.400
0.0118
0.0138
0.0157
L3
0.150
0.0059
L4
0.200
0.0079
b
ddd
0.180
0.250
0.300
0.050
0.0071
0.0098
0.0118
0.002
1. Values in inches are rounded to 4 decimal digits
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Package characteristics
STM8L101xx
Figure 45. TSSOP20 - 20-lead thin shrink small
package outline (1)
Figure 46. TSSOP20 recommended
footprint (1)(2)
D
20
11
c
E1
1
E
10
α
A1
A
L
A2
L1
CP
b
e
TSSOP20-M
BJ
1. Drawing is not to scale
2. Dimensions are in millimeters
Table 43.
20-lead thin shrink small package, mechanical data
inches(1)
mm
Dim.
Min
Typ
A
Max
Min
1.2
A1
0.05
A2
0.8
b
0.19
1
CP
c
0.09
D
6.4
E
Max
0.0472
0.15
0.002
1.05
0.0315
0.3
0.0075
0.0059
0.0394
0.0413
0.0118
0.1
0.0039
0.2
0.0035
6.5
6.6
0.252
0.2559
0.2598
6.2
6.4
6.6
0.2441
0.252
0.2598
E1
4.3
4.4
4.5
0.1693
0.1732
0.1772
e
-
0.65
-
0.1693
0.0256
-
L
0.45
0.6
0.75
0.1693
0.0236
0.0295
L1
a
1
0°
N
0.0079
0.0394
8°
0°
Number of pins
20
1. Values in inches are converted from mm and rounded to 4 decimal digits.
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Typ
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8°
STM8L101xx
11
Device ordering information
Device ordering information
Figure 47. STM8L101xx ordering information scheme
Example:
STM8
L
101
F
3
U
6
A
TR
Product class
STM8 microcontroller
Family type
L = Low power
Sub-family type
101 = sub-family
Pin count
K = 32 pins
G = 28 pins
F = 20 pins
Program memory size
2 = 4 Kbytes
3 = 8 Kbytes
Package
U = VFQFPN, WFQFPN or UFQFPN
T = LQFP
P = TSSOP
Temperature range
3 = -40 °C to 125 °C
6 = -40 °C to 85 °C
COMP_REF availability on UFQFPN20
A = COMP_REF available
Blank = COMP_REF not available
Shipping
TR = Tape and reel
Blank = Tray
1. For a list of available options (e.g. memory size, package) and orderable part numbers or for further
information on any aspect of this device, please go to www.st.com or contact the ST Sales Office nearest to
you.
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STM8 development tools
12
STM8L101xx
STM8 development tools
Development tools for the STM8 microcontrollers include the full-featured STice emulation
system supported by a complete software tool package including C compiler, assembler and
integrated development environment with high-level language debugger. In addition, the
STM8 is to be supported by a complete range of tools including starter kits, evaluation
boards and a low-cost in-circuit debugger/programmer.
12.1
Emulation and in-circuit debugging tools
The STice emulation system offers a complete range of emulation and in-circuit debugging
features on a platform that is designed for versatility and cost-effectiveness. In addition,
STM8 application development is supported by a low-cost in-circuit debugger/programmer.
The STice is the fourth generation of full featured emulators from STMicroelectronics. It
offers new advanced debugging capabilities including profiling and coverage to help detect
and eliminate bottlenecks in application execution and dead code when fine tuning an
application.
In addition, STice offers in-circuit debugging and programming of STM8 microcontrollers via
the STM8 single wire interface module (SWIM), which allows non-intrusive debugging of an
application while it runs on the target microcontroller.
For improved cost effectiveness, STice is based on a modular design that allows you to
order exactly what you need to meet your development requirements and to adapt your
emulation system to support existing and future ST microcontrollers.
STice key features
72/77
●
Occurrence and time profiling and code coverage (new features)
●
Program and data trace recording up to 128 KB records
●
Read/write on the fly of memory during emulation
●
In-circuit debugging/programming via SWIM protocol
●
8-bit probe analyzer
●
Power supply follower managing application voltages between 1.62 to 5.5 V
●
Modularity that allows you to specify the components you need to meet your
development requirements and adapt to future requirements
●
Supported by free software tools that include integrated development environment
(IDE), programming software interface and assembler for STM8.
Doc ID 15275 Rev 7
STM8L101xx
12.2
STM8 development tools
Software tools
STM8 development tools are supported by a complete, free software package from
STMicroelectronics that includes ST Visual Develop (STVD) IDE and the ST Visual
Programmer (STVP) software interface. STVD provides seamless integration of the Cosmic
and Raisonance C compilers for STM8, which are available in a free version that outputs up
to 16 Kbytes of code.
12.2.1
STM8 toolset
STM8 toolset with STVD integrated development environment and STVP programming
software is available for free download at www.st.com/mcu. This package includes:
ST Visual Develop – Full-featured integrated development environment from ST, featuring
●
Seamless integration of C and ASM toolsets
●
Full-featured debugger
●
Project management
●
Syntax highlighting editor
●
Integrated programming interface
●
Support of advanced emulation features for STice such as code profiling and coverage
ST Visual Programmer (STVP) – Easy-to-use, unlimited graphical interface allowing read,
write and verify of your STM8 microcontroller’s Flash program memory, data EEPROM and
option bytes. STVP also offers project mode for saving programming configurations and
automating programming sequences.
12.2.2
C and assembly toolchains
Control of C and assembly toolchains is seamlessly integrated into the STVD integrated
development environment, making it possible to configure and control the building of your
application directly from an easy-to-use graphical interface.
Available toolchains include:
12.3
●
Cosmic C compiler for STM8 – Available in a free version that outputs up to
16 Kbytes of code. For more information, see www.cosmic-software.com.
●
Raisonance C compiler for STM8 – Available in a free version that outputs up to
16 Kbytes of code. For more information, see www.raisonance.com.
●
STM8 assembler linker – Free assembly toolchain included in the STVD toolset,
which allows you to assemble and link your application source code.
Programming tools
During the development cycle, STice provides in-circuit programming of the STM8 Flash
microcontroller on your application board via the SWIM protocol. Additional tools are to
include a low-cost in-circuit programmer as well as ST socket boards, which provide
dedicated programming platforms with sockets for programming your STM8.
For production environments, programmers will include a complete range of gang and
automated programming solutions from third-party tool developers already supplying
programmers for the STM8 family.
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Revision history
13
STM8L101xx
Revision history
Table 44.
Document revision history
Date
Revision
19-Dec-2008
1
Intitial release.
2
Added TSSOP28 package
Modified packages on first page
COMPx_OUT pins removed
Added Figure 6: 28-pin TSSOP package pinout on page 17
Modified Section 9: Electrical parameters on page 37.
Updated UBC[7:0] description in Section 7: Option bytes.
Updated low power current consumption on cover page.
Updated Table 13: Voltage characteristics, Table 20: Total current
consumption and timing in Halt and Active-halt mode at VDD = 1.65
V to 3.6 V, Table 26: I/O static characteristics, Table 30: NRST pin
characteristics, and Section 9.3.9: EMC characteristics.
Updated PA1/NRST, PC0 and PC1 in Table 4: STM8L101xx pin
description.
Added ECC feature.
Changed internal RC frequency to 38 kHz.
Updated electrical characteristics in Table 16, Table 18, Table 19,
Table 20, Table 22, Table 23, and Table 26.
3
Corrected title on cover page.
Changed VFQFPN32 to WFQFPN32 and updated Table 39:
WFQFPN32 - 32-lead very very thin fine pitch quad flat no-lead
package (5 x 5), package mechanical data.
Updated Table 13, Table 26, and Table 33.
14-May-2009
4
Replaced WFQFPN20 3 x 3 mm 0.8 mm package by UFQFPN20
3 x 3 mm 0.6 mm package (first page, Table 16: General operating
conditions on page 40, Table 38: Thermal characteristics on
page 64, Section 10.2: Package mechanical data on page 65)
Added one UFQFPN20 version with COMP_REF
Modified Figure 40: LQFP32 recommended footprint(1) on page 67
Added IPROG values in Table 25: Flash program memory on page 48
Updated Table 31: SPI characteristics on page 56
15-May-2009
5
Added STM8L101F3U6ATR part number in Section 4: Pin
description on page 14 and in Figure 47: STM8L101xx ordering
information scheme on page 71
22-Apr-2009
24-Apr-2009
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Changes
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STM8L101xx
Revision history
Table 44.
Document revision history (continued)
Date
12-Jun-2009
Revision
Changes
6
Removed TSSOP28 package
Modified consumption value on first page
Added BEEP_CSR (address 00 50F3h) in Table 7: General
hardware register map on page 25
TIM2_PSCRL replaced with TIM2_PSCR and CLK_PCKEN
replaced with CLK_PCKENR in Table 7: General hardware register
map on page 25
Added graphs in Section 9: Electrical parameters on page 37
Added tWU(AH) and tWU(Halt) max values in Table 20: Total current
consumption and timing in Halt and Active-halt mode at VDD = 1.65
V to 3.6 V on page 43
Modified Table 20: Total current consumption and timing in Halt and
Active-halt mode at VDD = 1.65 V to 3.6 V on page 43
Updated Table 22: HSI oscillator characteristics on page 45,
Table 23: LSI oscillator characteristics on page 46 and Table 24:
RAM and hardware registers on page 48
Modified Table 27: Output driving current (standard ports) on
page 52
Removed note 1 in Table 37: Electrical sensitivities on page 63
Added note to Table 39: WFQFPN32 - 32-lead very very thin fine
pitch quad flat no-lead package (5 x 5), package mechanical data on
page 65 and
Table 41: WFQFPN28 - 28-lead very very thin fine pitch quad flat nolead package (4 x 4), package mechanical data on page 68
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Revision history
STM8L101xx
Table 44.
Document revision history (continued)
Date
07-Sep-2009
76/77
Revision
Changes
7
Added STM8L101F2U6ATR, STM8L101G2U6ATR and
STM8L101G3U6ATR part numbers
Modified Section 2: Description on page 7.
Modified Table 2: Device features on page 8 (Flash)
Modifiied Figure 1: STM8L101 device block diagram on page 9
Modified Section 3.5: Memory on page 11
Added note below Figure 2: Standard 20-pin UFQFPN package
pinout on page 14 and Figure 5: Standard 28-pin WFQFPN package
pinout on page 17
Added Figure 6: 28-pin WFQFPN package pinout for
STM8L101G3U6ATR and STM8L101G2U6ATR part numbers on
page 18
Modified reset values for Px_IDR registers in Table 6: I/O Port
hardware register map on page 24
Added Section 6: Interrupt vector mapping on page 32
Modified OPT numbers in Section 7: Option bytes on page 34
Modified OPT2 in Table 10: Option bytes on page 34
Added Section 8: Unique ID on page 36
TIM_IR pin replaced with IR_TIM pin
Modified Table 20: Total current consumption and timing in Halt and
Active-halt mode at VDD = 1.65 V to 3.6 V on page 43
Modified Figure 15: Typ. IDD(Halt) vs. VDD @ fCPU = 2 MHz and
16 MHz @4 temperatures on page 43 and Figure 19: Typical LSI RC
frequency vs. VDD @ 4 temperatures on page 47
Modified Table 27: Output driving current (standard ports) on
page 52
Updated Table 29: Output driving current (PA0 with high sink LED
driver capability) on page 52
Modified : Functional EMS (electromagnetic susceptibility) on
page 61
Modified conditions in Table 35: EMI data on page 62
Added note to Figure 37: WFQFPN32 - 32-lead very very thin fine
pitch quad flat no-lead package outline (5 x 5) on page 65
Modified Figure 41: WFQFPN28 - 28-lead very very thin fine pitch
quad flat no-lead package outline (4 x 4) on page 68
Added Figure 44: UFQFPN20 recommended footprint (1) on
page 69
Added Figure 46: TSSOP20 recommended footprint (1) on page 70
CMP replaced with COMP
Doc ID 15275 Rev 7
STM8L101xx
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