ENA1835 D

Ordering number : ENA1835A
LC87F1L16A
CMOS IC
16K-byte FROM and 2048-byte RAM integrated
http://onsemi.com
8-bit 1-chip Microcontroller
with USB-host controller
Overview
The LC87F1L16A is an 8-bit microcomputer that, integrates on a single chip a number of hardware features such as
16K-byte flash ROM, 2048-byte RAM, an on-chip debugger, a 16-bit timer/counter, a 16-bit timer, four 8-bit timers,
a base timer serving as a time-of-day clock, a synchronous SIO interface with automatic data transfer capabilities, an
asynchronous/synchronous SIO interface, a UART interface, 2 channels of full-speed USB interface (host control
function), a 12-channel AD converter, 2 channels of 12-bit PWM, a system clock frequency divider, and an interrupt
feature.
Flash ROM
• 16384 × 8 bits
• Capable of on-board programming
with a wide range of supply voltages: 3.0 to 5.5V
• Block-erasable in 128 byte units
• Writes data in 2-byte units
Package Dimensions
unit : mm (typ)
3163B
9.0
7.0
36
0.5
Features
25
37
24
48
13
7.0
9.0
RAM
• 2048 × 9 bits
Package Form
• SQFP48 (7×7): Lead-/Halogen-free type
1
12
0.5
0.18
0.15
(1.5)
0.1
1.7max
(0.75)
SANYO : SQFP48(7X7)
* This product is licensed from Silicon Storage Technology, Inc. (USA).
Semiconductor Components Industries, LLC, 2013
May, 2013
Ver.1.01
D2612HK/11211HKIM 20100907-S00002 No.A1835-1/23
LC87F1L16A
Bus Cycle Time
• 83.3ns (When CF=12MHz)
Note: The bus cycle time here refers to the ROM read speed.
Minimum Instruction Cycle Time (tCYC)
• 250ns (When CF=12MHz)
Ports
• I/O ports
Ports whose I/O direction can be designated in 1-bit units 26 (P10 to P17, P20 to P25, P30 to P34,
P70 to P73, PWM0, PWM1, XT2)
Ports whose I/O direction can be designated in 4-bit units 8 (P00 to P07)
• USB ports
2 (UHAD+, UHAD-, UHBD+, UHBD-)
• Dedicated oscillator ports
2 (CF1, CF2)
• Input-only port (also used for oscillation)
1 (XT1)
• Reset pins
1 (RES)
• Power supply pins
6 (VSS1 to 3, VDD1 to 3)
Timers
• Timer 0: 16-bit timer/counter with 2 capture registers.
Mode 0: 8-bit timer with an 8-bit programmable prescaler (with two 8-bit capture registers) × 2 channels
Mode 1: 8-bit timer with an 8-bit programmable prescaler (with two 8-bit capture registers)
+ 8-bit counter (with two 8-bit capture registers)
Mode 2: 16-bit timer with an 8-bit programmable prescaler (with two 16-bit capture registers)
Mode 3: 16-bit counter (with two 16-bit capture registers)
• Timer 1: 16-bit timer/counter that supports PWM/toggle outputs
Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs) + 8-bit timer/
counter with an 8-bit prescaler (with toggle outputs)
Mode 1: 8-bit PWM with an 8-bit prescaler × 2 channels
Mode 2: 16-bit timer/counter with an 8-bit prescaler (with toggle outputs)
(toggle outputs also possible from lower-order 8 bits)
Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs)
(lower-order 8 bits may be used as a PWM output)
• Timer 4: 8-bit timer with a 6-bit prescaler
• Timer 5: 8-bit timer with a 6-bit prescaler
• Timer 6: 8-bit timer with a 6-bit prescaler (with toggle outputs)
• Timer 7: 8-bit timer with a 6-bit prescaler (with toggle outputs)
• Base timer
1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler
output.
2) Interrupts programmable in 5 different time schemes
SIO
• SIO0: Synchronous serial interface
1) LSB first/MSB first mode selectable
2) Transfer clock cycle: 4/3 to 512/3 tCYC
3) Automatic continuous data transmission (1 to 256 bits, specifiable in 1-bit units)
(Suspension and resumption of data transmission possible in 1 byte units)
• SIO1: 8-bit asynchronous/synchronous serial interface
Mode 0: Synchronous 8-bit serial I/O (2- or 3-wire configuration, 2 to 512 tCYC transfer clocks)
Mode 1: Asynchronous serial I/O (half-duplex, 8 data bits, 1 stop bit, 8 to 2048 tCYC baudrates)
Mode 2: Bus mode 1 (start bit, 8 data bits, 2 to 512 tCYC transfer clocks)
Mode 3: Bus mode 2 (start detect, 8 data bits, stop detect)
Full Duplex UART
1) Data length: 7/8/9 bits selectable
2) Stop bits: 1 bit (2 bits in continuous transmission mode)
3) Baud rate: 16/3 to 8192/3 tCYC
No.A1835-2/23
LC87F1L16A
AD Converter: 12 bits × 12 channels
PWM: Multifrequency 12-bit PWM × 2 channels
USB Interface (host control function) × 2 channels
1) Compliant with full-speed (12M bps) specifications
2) Supports 4 transfer types (control transfer, bulk transfer, interrupt transfer, and isochronous transfer).
Watchdog Timer
• Watchdog timer using external RC circuitry
• Interrupt and reset signals selectable
Clock Output Function
1) Can output a clock with a clock rate of 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, or 1/64 of the source oscillator clock selected
as the system clock.
2) Can output the source oscillation clock for the subclock.
Interrupts
• 39 sources, 10 vector addresses
1) Provides three levels (low (L), high (H), and highest (X)) of multiplex interrupt control. Any interrupt requests of
the level equal to or lower than the current interrupt are not accepted.
2) When interrupt requests to two or more vector addresses occur at the same time, the interrupt of the highest level
takes precedence over the other interrupts. For interrupts of the same level, the interrupt into the smallest vector
address takes precedence.
No.
Vector Address
Level
Interrupt Source
1
00003H
X or L
INT0
2
0000BH
X or L
INT1
3
00013H
H or L
INT2/T0L/INT4/UHC-A bus active/UHC-B bus active
4
0001BH
H or L
INT3/INT5/Base timer
5
00023H
H or L
T0H/INT6/UHC-A device connected/UHC-A disconnected/UHC-A resume
6
0002BH
H or L
T1L/T1H/INT7/UHC-B device connected/UHC-B disconnected/UHC-B resume
7
00033H
H or L
SIO0/UART1 receive complete
8
0003BH
H or L
SIO1/UART1 buffer empty/UART1 transmit complete
9
00043H
H or L
ADC/T6/T7/UHC-ACK/UHC-NAK/UHC error/UHC STALL
10
0004BH
H or L
Port 0/PWM0/PWM1/T4/T5/UHC-SOF
• Priority levels X > H > L
• Of interrupts of the same level, the one with the smallest vector address takes precedence.
Subroutine Stack Levels: 1024 levels maximum (The stack is allocated in RAM.)
High-speed Multiplication/Division Instructions
• 16 bits × 8 bits
(5 tCYC execution time)
• 24 bits × 16 bits
(12 tCYC execution time)
• 16 bits ÷ 8 bits
(8 tCYC execution time)
• 24 bits ÷ 16 bits
(12 tCYC execution time)
Oscillation and PLL Circuits
• RC oscillation circuit (internal):
• CF oscillation circuit:
• Crystal oscillation circuit:
• PLL circuit (internal):
For system clock
For system clock
For system clock, time-of-day clock
For USB interface (see Fig.5)
No.A1835-3/23
LC87F1L16A
Standby Function
• HALT mode: Halts instruction execution while allowing the peripheral circuits to continue operation.
1) Oscillation is not halted automatically.
2) There are three ways of resetting the HOLD mode.
(1) Setting the reset pin to the lower level
(2) System resetting by watchdog timer
(3) Occurrence of an interrupt
• HOLD mode: Suspends instruction execution and the operation of the peripheral circuits.
1) The PLL base clock generator, CF, RC and crystal oscillators automatically stop operation.
2) There are five ways of resetting the HOLD mode.
(1) Setting the reset pin to the lower level
(2) System resetting by watchdog timer
(3) Having an interrupt source established at either INT0, INT1, INT2, INT4 or INT5
* INT0 and INT1 HOLD mode reset is available only when level detection is set.
(4) Having an interrupt source established at port 0
(5) Having an bus active interrupt source established in the USB host controll circuit
• X'tal HOLD mode: Suspends instruction execution and the operation of the peripheral circuits except the base timer.
1) The PLL base clock generator, CF and RC oscillator automatically stop operation.
2) The state of crystal oscillation established when the X'tal HOLD mode is entered is retained.
3) There are six ways of resetting the X'tal HOLD mode.
(1) Setting the reset pin to the low level
(2) System resetting by watchdog timer
(3) Having an interrupt source established at either INT0, INT1, INT2, INT4 or INT5
* INT0 and INT1 HOLD mode reset is available only when level detection is set.
(4) Having an interrupt source established at port 0
(5) Having an interrupt source established in the base timer circuit
(6) Having an bus active interrupt source established in the USB host controll circuit
Development Tools
• On-chip debugger: TCB87 type-B + LC87F1L16A or TCB87 type-C (three wire cable) + LC87F1L16A
Flash ROM Programming Boards
Package
Programming Boards
SQFP48(7 × 7)
W87F55256SQ
Flash Programmer
Maker
Model
Flash Support Group, Inc.
Single
AF9709/AF9709B/AF9709C
(FSG)
Programmer
(Including Ando Electric Co., Ltd. models)
Flash Support Group, Inc.
(FSG)
+
Sanyo (Note 1)
Sanyo
Onboard
Single/Gang
Programmer
(FSG models)
SIB87(Inter Face Driver)
Programmer
(SanyoFWS)
Programmer
Rev 03.18c or later
LC87F1L16A
(Note 2)
LC87F1L16A
(Sanyo model)
SKK/SKK TypeB
Single/Gang
Device
AF9101/AF9103 (Main unit)
Single/Gang
Onboard
Supported version
Application Version
1.04 or later
SKK-DBG TypeB
Chip Data Version
(SanyoFWS)
2.21 or later
LC87F1L16
For information about AF-Series:
Flash Support Group, Inc.
TEL: +81-53-459-1050
E-mail: [email protected]
Note1: On-board-programmer from FSG (AF9101/AF9103) and serial interface driver from Our company (SIB87)
together can give a PC-less, standalone on-board-programming capabilities.
Note2: It needs a special programming devices and applications depending on the use of programming environment.
Please ask FSG or Our company for the information.
No.A1835-4/23
LC87F1L16A
36
35
34
33
32
31
30
29
28
27
26
25
UHBD+
UHBDP25/INT5
P24/INT5/INT7
P23/INT4
P22/INT4
P21/INT4
P20/INT4/INT6
P07/AN7/T7O
P06/AN6/T6O
P05/AN5/CKO
P04/AN4/DBGP2
Pin Assignment
37
38
39
40
41
42
43
44
45
46
47
48
24
23
22
21
20
19
18
17
16
15
14
13
LC87F1L16A
P03/AN3/DBGP1
P02/AN2/DBGP0
P01/AN1
P00/AN0
VSS2
VDD2
PWM0
PWM1
P17/T1PWMH/BUZ
P16/T1PWML
P15/SCK1
P14/SI1/SB1
P73/INT3/T0IN
RES
XT1/AN10
XT2/AN11
VSS1
CF1
CF2
VDD1
P10/SO0
P11/SI0/SB0
P12/SCK0
P13/SO1
1
2
3
4
5
6
7
8
9
10
11
12
UHADUHAD+
VDD3
VSS3
P34/UFILT
P33
P32
P31/URX1
P30/UTX1
P70/INT0/T0LCP/AN8
P71/INT1/T0HCP/AN9
P72/INT2/T0IN
Top view
SQFP48(7×7) “Lead-/Halogen-free Type”
SQFP48
NAME
SQFP48
NAME
1
P73/INT3/T0IN
25
P04/AN4/DBGP2
2
RES
26
P05/AN5/CKO
3
XT1/AN10
27
P06/AN6/T6O
4
XT2/AN11
28
P07/AN7/T7O
5
VSS1
29
P20/INT4/INT6
6
CF1
30
P21/INT4
7
CF2
31
P22/INT4
8
VDD1
32
P23/INT4
9
P10/SO0
33
P24/INT5/INT7
10
P11/SI0/SB0
34
P25/INT5
11
P12/SCK0
35
UHBD-
12
P13/SO1
36
UHBD+
13
P14/SI1/SB1
37
UHAD-
14
P15/SCK1
38
UHAD+
15
P16/T1PWML
39
VDD3
16
P17/T1PWMH/BUZ
40
VSS3
17
PWM1
41
P34/UFILT
18
PWM0
42
P33
19
VDD2
43
P32
P31/URX1
20
VSS2
44
21
P00/AN0
45
P30/UTX1
22
P01/AN1
46
P70/INT0/T0LCP/AN8
23
P02/AN2/DBGP0
47
P71/INT1/T0HCP/AN9
24
P03/AN3/DBGP1
48
P72/INT2/T0IN
No.A1835-5/23
LC87F1L16A
System Block Diagram
Interrupt control
Standby control
CF
USB PLL
RC
Clock
generator
X’tal
PLA
IR
FROM
PC
SIO0
Bus interface
ACC
SIO1
Port 0
B register
Timer 0
Port 1
C register
Timer 1
Port 2
ALU
Timer 4
Port 3
Timer 5
Port 7
Timer 6
INT0 to INT7
Noise filter
RAR
Timer 7
UART1
RAM
Base timer
ADC
Stack pointer
PWM0
USB host
PSW
Watchdog timer
PWM1
Onchip debugger
No.A1835-6/23
LC87F1L16A
Pin Description
Pin Name
I/O
Description
Option
VSS1,VSS2,
VSS3
-
- power supply
No
VDD1, VDD2
-
+ power supply
No
VDD3
-
USB reference voltage
Yes
Port 0
I/O
• 8-bit I/O ports
Yes
• I/O specifiable in 4-bit units
P00 to P07
• Pull-up resistors can be turned on and off in 4-bit units.
• HOLD reset input
• Port 0 interrupt input
• Pin functions
AD converter input ports: AN0 to AN7(P00 to P07)
Onchip debugger pins: DBGP0 to DBGP2(P02 to P04)
P05: System clock output
P06: Timer 6 toggle output
P07: Timer 7 toggle output
Port 1
I/O
• 8-bit I/O ports
Yes
• I/O specifiable in 1-bit units
P10 to P17
• Pull-up resistors can be turned on and off in 1-bit units.
• Pin functions
Port 2
I/O
P10: SIO0 data output
P14: SIO1 data input/bus input/output
P11: SIO0 data input/bus input/output
P15: SIO1 clock input/output
P12: SIO0 clock input/output
P16: Timer 1 PWML output
P13: SIO1 data output
P17: Timer 1 PWMH output/beeper output
• 6-bit I/O ports
Yes
• I/O specifiable in 1-bit units
P20 to P25
• Pull-up resistors can be turned on and off in 1-bit units.
• Pin functions
P20 to P23: INT4 input/HOLD reset input/timer 1 event input/timer 0L capture input/
timer 0H capture input
P24 to P27: INT5 input/HOLD reset input/timer 1 event input/timer 0L capture input/
timer 0H capture input
P20: INT6 input/timer 0L capture 1 input
P24: INT7 input/timer 0H capture 1 input
Interrupt acknowledge types
Port 3
P30 to P34
I/O
Rising
Falling
INT4
enable
enable
INT5
enable
enable
INT6
enable
INT7
enable
Rising &
H level
L level
enable
disable
disable
enable
disable
disable
enable
enable
disable
disable
enable
enable
disable
disable
Falling
• 5-bit I/O ports
Yes
• I/O specifiable in 1-bit units
• Pull-up resistors can be turned on and off in 1-bit units.
• Pin functions
P30: UART1 transmit
P31: UART1 receive
P34: USB interface PLL filter pin (see Fig. 5.)
Continued on next page.
No.A1835-7/23
LC87F1L16A
Continued from preceding page.
Pin Name
Port 7
I/O
I/O
Description
Option
• 4-bit I/O port
No
• I/O specifiable in 1-bit units
P70 to P73
• Pull-up resistors can be turned on and off in 1-bit units.
• Pin functions
P70: INT0 input/HOLD reset input/timer 0L capture input/watchdog timer output
P71: INT1 input/HOLD reset input/timer 0H capture input
P72: INT2 input/HOLD reset input/timer 0 event input/timer 0L capture input/
high speed clock counter input
P73: INT3 input (input with noise filter)/timer 0 event input/timer 0H capture input
AD converter input ports: AN8(P70), AN9(P71)
Interrupt acknowledge types
PWM0
I/O
PWM1
UHAD-
Rising
Falling
INT0
enable
enable
INT1
enable
enable
INT2
enable
INT3
enable
Rising &
H level
L level
disable
enable
enable
disable
enable
enable
enable
enable
disable
disable
enable
enable
disable
disable
Falling
PWM0, PWM1 output port
No
General-purpose input port
I/O
USB-A port data I/O pin/general-purpose I/O port
No
I/O
USB-B port data I/O pin/general-purpose I/O port
No
UHAD+
UHBDUHBD+
RES
Input
Reset pin
No
XT1
Input
• 32.768kHz crystal oscillator input
No
• Pin functions
General-purpose input port
AD converter input ports: AN10
XT2
I/O
Must be connected to VDD1 when not to be used.
• 32.768kHz crystal oscillator output
No
• Pin functions
General-purpose I/O
AD converter input port: AN11
Must be set for oscillation and kept open if not to be used.
CF1
Input
CF2
Output
Ceramic/crystal resonator input
No
Ceramic/crystal resonator output
No
No.A1835-8/23
LC87F1L16A
On-chip Debugger Pin Connection Requirements
For the treatment of the on-chip debugger pins, refer to the separately available documents entitled “Rd87 On-chip
Debugger Installation Manual”
Port Output Types
The table below lists the types of port outputs and the presence/absence of a pull-up resistor.
Data can be read into any input port even if it is in the output mode.
Port Name
P00 to P07
P10 to P17
Option selected in
units of
1 bit
1 bit
Option type
Output type
Pull-up resistor
1
CMOS
Programmable (Note 1)
2
Nch-open drain
No
1
CMOS
Programmable
2
Nch-open drain
Programmable
Programmable
P20 to P25
P30 to P34
P70
-
No
Nch-open drain
P71 to P73
-
No
CMOS
Programmable
PWM0, PWM1
-
No
CMOS
No
UHAD+, UHAD-
-
No
CMOS
No
XT1
-
No
Input only
No
XT2
-
No
32.768kHz crystal resonator output (N channel open
No
UHBD+, UHBD-
drain when in general-purpose output mode)
Note 1: Programmable pull-up resistors for port 0 are controlled in 4 bit units (P00 to 03, P04 to 07).
User Option Table
Option Name
Port output form
Mask
Flash
Version *1
Version
enable
enable
Option Type
P00 to P07
Option Selected in Units of
Option Selection
CMOS
1 bit
Nch-open drain
P10 to P17
enable
enable
CMOS
1 bit
Nch-open drain
P20 to P25
enable
enable
CMOS
1 bit
Nch-open drain
P30 to P34
enable
enable
CMOS
1 bit
Nch-open drain
Program start
address
USB Regulator
×
enable
00000h
-
*2
USB Regulator
enable
03E00h
enable
USE
NONUSE
USB Regulator
enable
enable
USE
-
(at HOLD mode)
USB Regulator
NONUSE
enable
enable
USE
-
(at HALT mode)
Main clock 8MHz
-
NONUSE
enable
enable
selection
ENABLE
DISABLE
*1: Mask option selection – No change possible after mask is completed.
*2: Program start address of the mask version is 00000h.
No.A1835-9/23
LC87F1L16A
USB Reference Power Option
When a voltage 4.5 to 5.5V is supplied to VDD1 and the internal USB reference voltage circuit is activated, the
reference voltage for USB port output is generated. The active/inactive state of the reference voltage circuit can be
switched by option select. The procedure for marking the option selection is described below.
(1)
Option settings
Reference voltage circuit state
(2)
(3)
(4)
USE
USE
NONUSE
NONUSE
NONUSE
NONUSE
USE
NONUSE
inactive
USB regulator
USE
USB regulator at HOLD mode
USE
USB regulator at HALT mode
USE
NONUSE
Normal mode
active
active
active
HOLD mode
active
inactive
inactive
inactive
HALT mode
active
inactive
active
inactive
• When the USB reference voltage circuit is made inactive, the level of the reference voltage for USB port output is
equal to VDD1.
• Selection (2) or (3) can be used to set the reference voltage circuit inactive in HOLD or HALT mode.
• When the reference voltage circuit is activated, the current drain increases by approximately 100μA compared with
when the reference voltage circuit is inactive.
Example 1: VDD1=VDD2=3.3V
• Inactivating the reference voltage circuit (selection (4)).
• Connecting VDD3 to VDD1 and VDD2.
LSI
Power Supply
3.3V
VDD1
VDD2
UHAD+
/UHBD+
33Ω
To USB connector
UHAD/UHBD5pF
VDD3
15kΩ
UFILT
2.2μF
0Ω
VSS1 VSS2 VSS3
2.2μF
Example 2: VDD1=VDD2=5.0V
• Activating the reference voltage circuit (selection (1)).
• Isolating VDD3 from VDD1 and VDD2, and connecting capacitor between VDD3 and VSS.
LSI
Power Supply
5V
VDD1
UHAD+
/UHBD+
VDD2
UHAD/UHBD-
To USB connector
33Ω
5pF
VDD3
2.2μF
15kΩ
UFILT
0Ω
0.1μF
VSS1 VSS2 VSS3
2.2μF
Note: Do not apply the voltage of more than 3.6V to UHAD+, UHAD-, UHBD+ and UHBD- when the reference
voltage circuit is active.
No.A1835-10/23
LC87F1L16A
Absolute Maximum Ratings at Ta = 25°C, VSS1 = VSS2 = VSS3 = 0V
Specification
Parameter
Symbol
Pin/Remarks
Conditions
VDD[V]
Maximum supply
VDD max
VDD1, VDD2, VDD3
Input voltage
VI(1)
XT1, CF1, RES
Input/output
VIO(1)
Ports 0, 1, 2, 3, 7
VDD1= VDD2= VDD3
voltage
voltage
PWM0, PWM1
min
typ
max
-0.3
+6.5
-0.3
VDD+0.3
-0.3
VDD+0.3
unit
V
XT2
Peak output
IOPH(1)
Ports 0, 1, 2
current
• When CMOS output
type is selected
-10
• Per 1 applicable pin
IOPH(2)
PWM0, PWM1
Per 1 applicable pin
IOPH(3)
Port 3
• When CMOS output
P71 to P73
type is selected
-20
-5
• Per 1 applicable pin
High level output current
Average
IOMH(1)
Ports 0, 1, 2
output current
• When CMOS output
type is selected
(Note 1-1)
-7.5
• Per 1 applicable pin
IOMH(2)
PWM0, PWM1
Per 1 applicable pin
IOMH(3)
Port 3
• When CMOS output
P71 to P73
type is selected
-15
-3
• Per 1 applicable pin
Total output
ΣIOAH(1)
Ports 0, 2
current
ΣIOAH(2)
ΣIOAH(3)
ΣIOAH(4)
ΣIOAH(5)
Peak output
Total current of all
applicable pins
IOPL(1)
current
Port 1
Total current of all
PWM0, PWM1
applicable pins
Ports 0, 1, 2
Total current of all
PWM0, PWM1
applicable pins
Port 3
Total current of all
P71 to P73
applicable pins
UHAD+, UHAD-
Total current of all
UHBD+, UHBD-
applicable pins
P02 to P07
Per 1 applicable pin
-25
-25
-45
-10
-50
Ports 1, 2
mA
20
PWM0, PWM1
IOPL(2)
P00, P01
Per 1 applicable pin
IOPL(3)
Ports 3, 7
Per 1 applicable pin
30
10
XT2
Low level output current
Average
IOML(1)
P02 to P07
output current
Ports 1, 2
(Note 1-1)
PWM0, PWM1
Per 1 applicable pin
15
IOML(2)
P00, P01
Per 1 applicable pin
IOML(3)
Ports 3, 7
Per 1 applicable pin
20
7.5
XT2
Total output
ΣIOAL(1)
Ports 0, 2
current
ΣIOAL(2)
ΣIOAL(3)
ΣIOAL(4)
ΣIOAL(5)
Allowable power
Total current of all
45
applicable pins
Pd max
Port 1
Total current of all
PWM0, PWM1
applicable pins
Ports 0, 1, 2
Total current of all
PWM0, PWM1
applicable pins
Ports 3, 7
Total current of all
XT2
applicable pins
UHAD+, UHAD-
Total current of all
UHBD+, UHBD-
applicable pins
SQFP48(7×7)
Ta=-40 to +85°C
45
80
15
50
140
Dissipation
Operating ambient
Topr
Temperature
Storage ambient
temperature
Tstg
-40
+85
-55
+125
mW
°C
Note 1-1: The average output current is an average of current values measured over 100ms intervals.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
No.A1835-11/23
LC87F1L16A
Allowable Operating Conditions at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Specification
Parameter
Operating
Symbol
VDD(1)
Pin/Remarks
VDD1=VDD2=VDD3
Conditions
VDD[V]
0.245μs ≤ tCYC ≤ 200μs
supply voltage
0.245μs ≤ tCYC ≤ 0.383μs
(Note 2-1)
USB circuit active
0.490μs ≤ tCYC ≤ 200μs Except
in onboard programming mode
Memory
VHD
VDD1=VDD2=VDD3
sustaining
min
typ
unit
max
3.0
5.5
3.0
5.5
2.7
5.5
2.0
5.5
RAM and register contents
sustained in HOLD mode.
supply voltage
High level
VIH(1)
input voltage
Port 0, 1, 2, 3
P71 to P73
P70 port input/
2.7 to 5.5
0.3VDD
+0.7
VDD
2.7 to 5.5
0.9VDD
VDD
2.7 to 5.5
0.75VDD
4.0 to 5.5
VSS
VDD
0.1VDD
+0.4
2.7 to 4.0
VSS
0.2VDD
4.0 to 5.5
VSS
2.7 to 4.0
VSS
2.7 to 5.5
VSS
2.7 to 5.5
VSS
3.0 to 5.5
0.245
200
3.0 to 5.5
0.245
0.383
2.7 to 5.5
0.490
200
3.0 to 5.5
0.1
12
interrupt side
PWM0, PWM1
VIH(2)
Port 70 watchdog
timer side
Low level
VIH(3)
XT1, XT2, CF1, RES
VIL(1)
Port 1, 2, 3
input voltage
P71 to P73
VIL(2)
P70 port input/
interrupt side
VIL(3)
Port 0
PWM0, PWM1
VIL(4)
VIL(5)
Port 70 watchdog
timer side
VIL(6)
Instruction
XT1, XT2, CF1, RES
tCYC
cycle time
USB circuit active
(Note 2-2)
Except for onboard programming
mode
External
FEXCF(1)
CF1
V
0.15VDD
+0.4
0.2VDD
0.8VDD
-1.0
0.25VDD
μs
• CF2 pin open
• System clock frequency
system clock
frequency
division ratio=1/1
• External system clock duty
=50±5%
MHz
• CF2 pin open
• System clock frequency
division ratio=1/1
2.7 to 5.5
0.1
6
• External system clock duty
=50±5%
Oscillation
FmCF
CF1, CF2
frequency
When 12MHz ceramic oscillation
See Fig. 1.
range
FmRC
(Note 2-3)
FsX’tal
Internal RC oscillation
XT1, XT2
32.768kHz crystal oscillation
See Fig. 2.
3.0 to 5.5
12
MHz
2.7 to 5.5
2.7 to 5.5
0.3
1.0
2.0
32.768
kHz
Note 2-1: VDD must be held greater than or equal to 3.0V in the flash ROM onboard programming mode.
Note 2-2: Relationship between tCYC and oscillation frequency is 3/FmCF at a division ratio of 1/1 and 6/FmCF at
a division ratio of 1/2.
Note 2-3: See Tables 1 and 2 for the oscillation constants.
No.A1835-12/23
LC87F1L16A
Electrical Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Specification
Parameter
Symbol
Pin/Remarks
Conditions
VDD[V]
High level input
IIH(1)
current
Ports 0, 1, 2, 3
Output disabled
Port 7
Pull-up resistor off
RES
PWM0, PWM1
VIN=VDD
(Including output Tr's off leakage
min
typ
max
unit
2.7 to 5.5
1
2.7 to 5.5
1
2.7 to 5.5
15
current)
IIH(2)
XT1, XT2
Input port configuration
VIN=VDD
Low level input
IIH(3)
CF1
VIN=VDD
IIL(1)
Ports 0, 1, 2, 3
Output disabled
Port 7
Pull-up resistor off
RES
VIN=VSS
(Including output Tr's off leakage
current
PWM0, PWM1
2.7 to 5.5
-1
2.7 to 5.5
-1
2.7 to 5.5
-15
μA
current)
IIL(2)
XT1, XT2
Input port configuration
VIN=VSS
IIL(3)
CF1
High level output
VOH(1)
Ports 0, 1, 2, 3
IOH=-1mA
4.5 to 5.5
VDD-1
voltage
VOH(2)
P71 to P73
IOH=-0.4mA
3.0 to 5.5
VDD-0.4
IOH=-0.2mA
2.7 to 5.5
VDD-0.4
VOH(3)
VOH(4)
VOH(5)
PWM0, WM1
P05 (CKO when
using system clock
VIN=VSS
IOH=-10mA
4.5 to 5.5
VDD-1.5
IOH=-1.6mA
3.0 to 5.5
VDD-0.4
IOH=-1mA
2.7 to 5.5
VDD-0.4
VOH(6)
output function)
Low level output
VOL(1)
P00, P01
IOL=30mA
4.5 to 5.5
1.5
voltage
VOL(2)
IOL=5mA
3.0 to 5.5
0.4
VOL(3)
IOL=2.5mA
2.7 to 5.5
0.4
VOL(4)
Ports 0, 1, 2
IOL=10mA
4.5 to 5.5
1.5
VOL(5)
PWM0, PWM1
IOL=1.6mA
3.0 to 5.5
0.4
IOL=1mA
2.7 to 5.5
0.4
VOL(6)
VOL(7)
XT2
Ports 3, 7
VOL(8)
Pull-up resistance
IOL=1.6mA
3.0 to 5.5
0.4
IOL=1mA
2.7 to 5.5
0.4
VOH=0.9VDD
V
Rpu(1)
Ports 0, 1, 2, 3
4.5 to 5.5
15
35
80
Rpu(2)
Port 7
2.7 to 5.5
18
50
150
Hysteresis voltage
VHYS
RES
Port 1, 2, 3, 7
2.7 to 5.5
0.1VDD
V
Pin capacitance
CP
All pins
2.7 to 5.5
10
pF
kΩ
For pins other than that under
test:
VIN=VSS
f=1MHz
Ta=25°C
No.A1835-13/23
LC87F1L16A
Serial I/O Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
1. SIO0 Serial I/O Characteristics (Note 4-1-1)
Parameter
Symbol
Frequency
tSCK(1)
Low level
tSCKL(1)
Specification
Pin/
Conditions
Remarks
SCK0(P12)
VDD[V]
See Fig. 8.
max
unit
1
tSCKH(1)
1
pulse width
• Continuous data transmission/
tSCKHA(1a)
Input clock
typ
2
pulse width
High level
min
reception mode
• USB not used at the same time.
2.7 to 5.5
4
tCYC
• See Fig. 8.
• (Note 4-1-2)
• Continuous data transmission/
tSCKHA(1b)
reception mode
• USB used at the same time.
7
• See Fig. 8.
Serial clock
• (Note 4-1-2)
Frequency
tSCK(2)
SCK0(P12)
• When CMOS output type is
4/3
selected
Low level
• See Fig. 8.
tSCKL(2)
1/2
pulse width
High level
tSCK
tSCKH(2)
1/2
pulse width
• Continuous data transmission/
Output clock
tSCKHA(2a)
reception mode
• USB not used at the same time.
• When CMOS output type is
2.7 to 5.5
tSCKH(2)
+2tCYC
selected
tSCKH(2)
+(10/3)
tCYC
• See Fig. 8.
tCYC
• Continuous data transmission/
tSCKHA(2b)
reception mode
• USB used at the same time.
tSCKH(2)
• When CMOS output type is
+2tCYC
selected.
tSCKH(2)
+(19/3)
tCYC
• See Fig. 8.
Serial input
Data setup time
SB0(P11),
SI0(P11)
• Must be specified with respect
to rising edge of SIOCLK.
• See Fig. 8.
Data hold time
thDI(1)
0.03
2.7 to 5.5
0.03
Input clock
Output delay
tdD0(1)
time
SO0(P10),
SB0(P11)
• Continuous data transmission/
(1/3)tCYC
reception mode
+0.05
• (Note 4-1-3)
tdD0(2)
• Synchronous 8-bit mode
tdD0(3)
μs
1tCYC
• (Note 4-1-3)
2.7 to 5.5
Output clock
Serial output
tsDI(1)
+0.05
(Note 4-1-3)
(1/3)tCYC
+0.05
Note 4-1-1: These specifications are theoretical values. Margins must be allowed according to the actual operating
conditions.
Note 4-1-2: In an application where the serial clock input is to be used in the continuous data transfer mode, the time
from SI0RUN being set when serial clock is high to the falling edge of the first serial clock must be longer
than tSCKHA.
Note 4-1-3: Must be specified with respect to falling edge of SIOCLK.
Must be specified as the time to the beginning of output state change in open drain output mode. See Fig. 8.
No.A1835-14/23
LC87F1L16A
2. SIO1 Serial I/O Characteristics (Note 4-2-1)
Input clock
Symbol
Frequency
tSCK(3)
Low level
tSCKL(3)
Specification
Pin/
Conditions
Remarks
SCK1(P15)
VDD[V]
See Fig. 8.
2.7 to 5.5
pulse width
High level
tSCK(4)
SCK1(P15)
• When CMOS output type is
• See Fig. 8.
tSCKL(4)
pulse width
High level
2
2.7 to 5.5
1/2
tSCK
1/2
pulse width
Serial input
tsDI(2)
SB1(P14),
SI1(P14)
• Must be specified with respect
to rising edge of SIOCLK.
• See Fig. 8.
Data hold time
unit
1
tSCKH(4)
Data setup time
max
1
selected
Low level
typ
tCYC
tSCKH(3)
Frequency
min
2
pulse width
Output clock
Serial clock
Parameter
thDI(2)
0.03
2.7 to 5.5
0.03
Output delay time
tdD0(4)
SO1(P13),
Serial output
SB1(P14)
μs
• Must be specified with respect
to falling edge of SIOCLK.
• Must be specified as the time
to the beginning of output state
(1/3)tCYC
2.7 to 5.5
+0.05
change in open drain output
mode.
• See Fig. 8.
Note 4-2-1: These specifications are theoretical values. Margins must be allowed according to the actual operating
conditions.
Pulse Input Conditions at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Specification
Parameter
Symbol
Pin/Remarks
Conditions
VDD[V]
High/low level
tP1H(1)
INT0(P70), INT1(P71),
• Interrupt source flag can be set.
pulse width
tP1L(1)
INT2(P72),
• Event inputs for timer 0 or 1 are
INT4(P20 to P23),
enabled.
INT5(P24 to P25),
min
typ
2.7 to 5.5
1
2.7 to 5.5
2
2.7 to 5.5
64
2.7 to 5.5
256
2.7 to 5.5
200
max
unit
INT6(P20),
INT7(P24)
tPIH(2)
INT3(P73) when noise
• Interrupt source flag can be set.
tPIL(2)
filter time constant is
• Event inputs for timer 0 are
1/1
tPIH(3)
INT3(P73) when noise
• Interrupt source flag can be set.
tPIL(3)
filter time constant is
• Event inputs for timer 0 are
1/32
nabled.
tPIH(4)
INT3(P73) when noise
• Interrupt source flag can be set.
tPIL(4)
filter time constant is
• Event inputs for timer 0 are
1/128
tPIL(5)
RES
tCYC
enabled.
enabled.
Resetting is enabled.
μs
No.A1835-15/23
LC87F1L16A
AD Converter Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
<12-bits AD Converter Mode>
Specification
Parameter
Symbol
Pin/Remarks
Conditions
VDD[V]
Resolution
N
AN0(P00) to
Absolute
ET
AN7(P07),
Conversion time
TCAD
max
unit
12
bit
±16
3.0 to 5.5
AN9(P71),
See conversion time calculation
4.5 to 5.5
32
115
AN10(XT1),
formulas. (Note 6-2)
3.0 to 5.5
64
115
3.0 to 5.5
VSS
VDD
AN11(XT2)
Analog input
typ
3.0 to 5.5
(Note 6-1)
AN8(P70),
accuracy
min
VAIN
voltage range
Analog port
IAINH
VAIN=VDD
3.0 to 5.5
input current
IAINL
VAIN=VSS
3.0 to 5.5
LSB
μs
V
1
μA
-1
<8-bits AD Converter Mode>
Specification
Parameter
Symbol
Pin/Remarks
Conditions
VDD[V]
Resolution
N
AN0(P00) to
Absolute
ET
AN7(P07),
min
typ
3.0 to 5.5
(Note 6-1)
max
unit
8
bit
±1.5
3.0 to 5.5
accuracy
AN8(P70),
Conversion time
AN9(P71),
See conversion time calculation
4.5 to 5.5
20
90
AN10(XT1),
formulas. (Note 6-2)
3.0 to 5.5
40
90
3.0 to 5.5
VSS
VDD
TCAD
AN11(XT2)
Analog input
VAIN
voltage range
Analog port
IAINH
VAIN=VDD
3.0 to 5.5
input current
IAINL
VAIN=VSS
3.0 to 5.5
LSB
1
-1
μs
V
μA
Conversion time calculation formulas :
12-bits AD Converter Mode : TCAD (Conversion time) = ((52/(AD division ratio))+2) × (1/3) × tCYC
8-bits AD Converter Mode : TCAD (Conversion time) = ((32/(AD division ratio))+2) × (1/3) × tCYC
<Recommended Operating Conditions>
External
Supply Voltage
System Clock
oscillator
Range
Division
FmCF[MHz]
VDD[V]
(SYSDIV)
4.0 to 5.5
1/1
3.0 to 5.5
1/1
Cycle Time
tCYC [ns]
AD Frequency
Conversion Time (TCAD)[μs]
Division Ratio
(ADDIV)
12-bit AD
8-bit AD
250
1/8
34.8
21.5
250
1/16
69.5
42.8
12
Note 6-1: The quantization error (±1/2LSB) must be excluded from the absolute accuracy. The absolute accuracy must
be measured in the microcontroller's state in which no I/O operations occur at the pins adjacent to the analog
input channel.
Note 6-2: The conversion time refers to the period from the time an instruction for starting a conversion process till the
time the conversion results register(s) are loaded with a complete digital conversion value corresponding to
the analog input value.
The conversion time is 2 times the normal-time conversion time when:
• The first AD conversion is performed in the 12-bit AD conversion mode after a system reset.
• The first AD conversion is performed after the AD conversion mode is switched from 8-bit to 12-bit
conversion mode.
No.A1835-16/23
LC87F1L16A
Consumption Current Characteristics at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Parameter
Symbol
Specification
Pin/
Conditions
Remarks
VDD[V]
• FmCF=12MHz ceramic oscillation mode
consumption
VDD1
=VDD2
current
=VDD3
• System clock set to 12MHz side
Normal mode
IDDOP(1)
(Note 7-1)
IDDOP(2)
• FsX'tal=32.768kHz crystal oscillation mode
min
typ
max
4.5 to 5.5
7.8
15
3.0 to 3.6
4.6
8.4
4.5 to 5.5
14
25
3.0 to 3.6
7.1
14
4.5 to 5.5
5.2
8.7
3.0 to 3.6
3.4
5.6
unit
• Internal PLL oscillation stopped
• Internal RC oscillation stopped
• USB circuit stopped
• 1/1 frequency division ratio
IDDOP(3)
• FmCF=12MHz ceramic oscillation mode
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to 12MHz side
IDDOP(4)
• Internal PLL oscillation mode active
• Internal RC oscillation stopped
• USB circuit active
mA
• 1/1 frequency division ratio
IDDOP(5)
IDDOP(6)
• FmCF=12MHz ceramic oscillation mode
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to 6MHz side
IDDOP(7)
• Internal RC oscillation stopped
• 1/2 frequency division ratio
2.7 to 3.0
2.8
4.6
IDDOP(8)
• FmCF=0Hz (Oscillation stopped)
4.5 to 5.5
0.63
2.3
3.0 to 3.6
0.37
1.3
2.7 to 3.0
0.32
1.0
4.5 to 5.5
43
123
3.0 to 3.6
17
52
2.7 to 3.0
13
38
4.5 to 5.5
3.3
5.9
3.0 to 3.6
1.7
3.1
4.5 to 5.5
9.2
17
3.0 to 3.6
4.3
8.3
4.5 to 5.5
2.2
4.0
3.0 to 3.6
1.1
2.0
2.7 to 3.0
0.88
1.5
4.5 to 5.5
0.36
1.3
3.0 to 3.6
0.18
0.62
2.7 to 3.0
0.14
0.45
IDDOP(9)
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to internal RC oscillation.
IDDOP(10)
• 1/2 frequency division ratio
IDDOP(11)
• FmCF=0Hz (Oscillation stopped)
• FsX'tal=32.768kHz crystal oscillation mode
IDDOP(12)
• System clock set to crystal oscillation.
(32.768kHz)
IDDOP(13)
• Internal RC oscillation stopped
• 1/2 frequency division ratio
HALT mode
IDDHALT(1)
μA
• HALT mode
consumption
• FmCF=12MHz ceramic oscillation mode
current
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to 12MHz side
(Note7-1)
IDDHALT(2)
• Internal PLL oscillation stopped
• Internal RC oscillation stopped
• USB circuit stopped
• 1/1 frequency division ratio
IDDHALT(3)
• HALT mode
• FmCF=12MHz ceramic oscillation mode
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to 12MHz side
IDDHALT(4)
• Internal PLL oscillation mode active
• Internal RC oscillation stopped
• USB circuit active
mA
• 1/1 frequency division ratio
IDDHALT(5)
• HALT mode
• FmCF=12MHz ceramic oscillation mode
IDDHALT(6)
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to 6MHz side
IDDHALT(7)
• Internal RC oscillation stopped
• 1/2 frequency division ratio
IDDHALT(8)
• HALT mode
• FmCF=0Hz (Oscillation stopped)
IDDHALT(9)
IDDHALT(10)
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to internal RC oscillation.
• 1/2 frequency division ratio
Note 7-1: The consumption current value includes none of the currents that flow into the output Tr and internal pull-up
resistors.
Continued on next page.
No.A1835-17/23
LC87F1L16A
Continued from preceding page.
Parameter
Symbol
HALT mode
Conditions
VDD[V]
IDDHALT(11)
VDD1
• HALT mode
• FmCF=0MHz (Oscillation stopped)
IDDHALT(12)
=VDD2
=VDD3
consumption
current
Specification
Pin/
Remarks
typ
max
unit
4.5 to 5.5
31
99
3.0 to 3.6
8.2
36
2.7 to 3.0
5.5
25
• HOLD mode
4.5 to 5.5
0.10
24
• CF1=VDD or open (External clock mode)
3.0 to 3.6
0.04
13
2.7 to 3.0
0.03
11
• FsX'tal=32.768kHz crystal oscillation mode
• System clock set to crystal oscillation.
(Note 7-1)
min
(32.768kHz)
IDDHALT(13)
• Internal RC oscillation stopped
• 1/2 frequency division ratio
HOLD mode
IDDHOLD(1)
consumption
IDDHOLD(2)
current
VDD1
IDDHOLD(3)
Timer HOLD
mode
IDDHOLD(4)
• Timer HOLD mode
IDDHOLD(5)
• CF1=VDD or open (External clock mode)
• FsX’tal=32.768kHz crystal oscillation mode
consumption
IDDHOLD(6)
current
4.5 to 5.5
28
92
3.0 to 3.6
6.6
32
2.7 to 3.0
4.1
22
μA
Note 7-1: The consumption current value includes none of the currents that flow into the output Tr and internal pull-up
resistors
USB Characteristics and Timing at Ta = -40°C to +85°C, VSS1 = VSS2 = VSS3 = 0V
Specification
Parameter
Symbol
Conditions
min
typ
max
unit
High level output
VOH(USB)
• 15kΩ±5% to GND
2.8
3.6
V
Low level output
VOL(USB)
• 1.5kΩ±5% to 3.6V
0.0
0.3
V
Output signal crossover voltage
VCRS
1.3
2.0
V
Differential input sensitivity
VDI
• ⏐(UHAD+)-(UHAD-)⏐
0.2
• ⏐(UHBD+)-(UHBD-)⏐
V
Differential input common mode range
VCM
0.8
2.5
V
High level input
VIH(USB)
2.0
3.6
V
Low level input
VIL(USB)
0.0
0.8
V
USB data rise time
tR
• RS=33Ω, CL=50pF
4
20
ns
USB data fall time
tF
• RS=33Ω, CL=50pF
4
20
ns
F-ROM Programming Characteristics at Ta = +10°C to +55°C, VSS1 = 0V
Parameter
Onboard programming
Symbol
IDDFW(1)
current
Programming time
Pin/
Remarks
VDD1
Specification
Conditions
VDD[V]
• Excluding power dissipation in the
microcontroller block
tFW(1)
• Erase operation
tFW(2)
• Write operation
3.0 to 5.5
min
typ
max
unit
5
10
mA
20
30
ms
40
60
μs
3.0 to 5.5
No.A1835-18/23
LC87F1L16A
Characteristics of a Sample Main System Clock Oscillation Circuit
Given below are the characteristics of a sample main system clock oscillation circuit that are measured using a Our
designated oscillation characteristics evaluation board and external components with circuit constant values with which
the oscillator vendor confirmed normal and stable oscillation.
Table 1 shows the characteristics of a oscillation circuit when USB host function is not used.
If USB host function is to be used, it is absolutely recommended to use an oscillator that satisfies the precision and
stability according to the USB standards.
Table 1 Characteristics of a Sample Main System Clock Oscillator Circuit with a Ceramic Oscillator
Nominal
Vendor
Frequency
Name
Circuit Constant
Oscillator Name
Operating
Oscillation
Voltage
Stabilization Time
C1
C2
Rd1
Range
typ
max
[pF]
[pF]
[Ω]
[V]
[ms]
[ms]
(33)
(33)
470
3.0 to 5.5
0.1
0.5
Remarks
C1 and C2
12MHz
MURATA
CSTCE12M0GH5L**-R0
integrated
SMD type
The oscillation stabilization time refers to the time interval that is required for the oscillation to get stabilized in the
following cases (see Figure 4):
• Till the oscillation gets stabilized after VDD goes above the operating voltage lower limit.
• Till the oscillation gets stabilized after the instruction for starting the main clock oscillation circuit is executed
• Till the oscillation gets stabilized after the HOLD mode is reset.
• Till the oscillation gets stabilized after the X'tal HOLD mode is reset with CFSTOP (OCR register, bit 0) set to 0
Characteristics of a Sample Subsystem Clock Oscillator Circuit
Given below are the characteristics of a sample subsystem clock oscillation circuit that are measured using a Our
designated oscillation characteristics evaluation board and external components with circuit constant values with which
the oscillator vendor confirmed normal and stable oscillation.
Table 2 Characteristics of a Sample Subsystem Clock Oscillator Circuit with a Crystal Oscillator
Nominal
Vendor
Frequency
Name
EPSON
32.768kHz
TOYOCOM
Circuit Constant
Oscillator Name
Operating
Oscillation
Voltage
Stabilization Time
C3
C4
Rf
Rd2
Range
typ
max
[pF]
[pF]
[Ω]
[Ω]
[V]
[s]
[s]
18
18
OPEN
560k
2.7 to 5.5
1.1
3.0
Remarks
Applicable
MC-306
CL value=12.5pF
SMD type
The oscillation stabilization time refers to the time interval that is required for the oscillation to get stabilized in the
following cases (see Figure 4):
• Till the oscillation gets stabilized after the instruction for starting the subclock oscillation circuit is executed
• Till the oscillation gets stabilized after the HOLD mode is reset with EXTOSC (OCR register, bit 6) set to 1
Note: The components that are involved in oscillation should be placed as close to the IC and to one another as possible
because they are vulnerable to the influences of the circuit pattern.
CF1
CF2
XT1
XT2
Rf
Rd1
C1
CF
C2
Figure 1 CF Oscillator Circuit
Rd2
C3
X’tal
C4
Figure 2 Crystal Oscillator Circuit
No.A1835-19/23
LC87F1L16A
0.5VDD
Figure 3 AC Timing Measurement Point
VDD
Operating VDD
lower limit
GND
Power supply
Reset time
RES
Internal RC
oscillation
tmsCF
CF1, CF2
tmsX’tal
XT1, XT2
Operating
mode
Unpredictable
Reset
Instruction execution
Reset Time and Oscillation Stabilization Time
HOLD reset signal
HOLD reset signal valid
Internal RC
oscillation
tmsCF
CF1,CF2
tmsX’tal
XT1, XT2
Operating mode
HOLD
HALT
HOLD Reset Signal and Oscillation Stabilization Time
Figure 4 Oscillation Stabilization Time
No.A1835-20/23
LC87F1L16A
P34/UFILT
When using the internal PLL circuit to generate the
48MHz clock for USB, it is necessary to connect a filter
circuit such to as that shown the left to the P34/UFILT pin.
Rd
0kΩ
+
Cd
- 2.2μF
Figure 5 External Filter Circuit for the Internal USB-dedicated PLL Circuit
33Ω
UHD+
5pF
15kΩ
It’s necessary to adjust the Circuit Constant
of the USB Port Peripheral Circuit for each
mounting board.
33Ω
UHD5pF
15kΩ
Figure 6 USB Port Peripheral Circuit
VDD
RRES
RES
CRES
Note:
Determine the value of CRES and RRES so
that the reset signal is present for a period of
200μs after the supply voltage goes beyond the
lower limit of the IC's operating voltage.
Figure 7 Reset Circuit
No.A1835-21/23
LC87F1L16A
SIOCLK:
DATAIN:
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
DATAOUT:
DO0
DO1
DO2
DO3
DO4
DO5
DO6
DO7
DO8
Data RAM transfer
period (SIO0 only)
tSCK
tSCKL
tSCKH
SIOCLK:
tsDI
thDI
DATAIN:
tdDO
DATAOUT:
Data RAM transfer
period (SIO0 only)
tSCKL
tSCKHA
SIOCLK:
tsDI
thDI
DATAIN:
tdDO
DATAOUT:
Figure 8 Serial Input/Output Waveform
tPIL
tPIH
Figure 9 Pulse Input Timing Signal Waveform
Voh
tr
D+
tr
90%
90%
Vcrs
10%
Vol
10%
D-
Figure 10 USB Data Signal Timing and Voltage Level
No.A1835-22/23
LC87F1L16A
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PS No.A1835-23/23