SILABS C8051F911 25 mips, 8 kb flash, ultra low power, capacitive sensing mcu Datasheet

C8051F99x
25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU
Capacitance to Digital Converter
- Supports buttons, sliders, wheels, and capacitive proximity
-
High-Speed 8051 µC Core
- Pipe-lined instruction architecture; executes 70% of instructions
in 1 or 2 system clocks
sensing
Fast 40 µs per channel conversion time
- 25 MIPS peak throughput with 25 MHz clock
- Expanded interrupt handler
16-bit resolution
Up to 14 input channels
Memory
- 512 bytes internal data RAM (256 + 256)
- 8 kB Flash; In-system programmable in 512 byte sectors; Full
Auto-accumulate up to 64x samples
Ultra-Low Power
- 150 µA/MHz active current from 1.8–3.6 V @ 25 MHz
- 10 nA sleep current with data retention; BOD disabled
- 50 nA sleep current with data retention; BOD enabled
- 300 nA sleep current with smaRTClock (internal oscillator)
- 600 nA sleep current with smaRTClock (external crystal)
- 2 µs wake up from sleep
read/write/erase functionality over the entire supply range
On-Chip Debug
- On-chip debug circuitry facilitates full speed, non-intrusive insystem debug
Digital Peripherals
- 17 port I/O; Programmable drive strength
- Hardware enhanced UART, SPI and SMBus™ serial ports
- CRC block provides 16-Bit CCITT polynomial calculation
- Four general purpose 16-bit counter/timers
- 16-bit programmable counter array (PCA) with three capture/
Supply Voltage 1.8 to 3.6 V
- Built-in brown-out detector
- On-chip LDO regulator for core supply
Analog to Digital Converter
-
75 ksps with 12-bit resolution (F990/6)
compare modules and enhanced PWM functionality
330 ksps with 8-bit resolution
Clock Sources
- 24.5 MHz ±2% oscillator; supports crystal-less UART operation
- Low power internal oscillator: 20 MHz
- External oscillator: Crystal, RC, C, CMOS clock
- Can switch clock sources on-the-fly; useful for power saving
Up to 10-channels
Autonomous burst mode with 16-bit averaging accumulator
VREF from external pin, VDD, or internal regulator
Built-in temperature sensor
Internal 6-Bit Current Reference
- 2 ranges: source or sink capability
- Up to 14-bit resolution via PWM interpolation
modes
Temperature Range: -40 to +85 °C
Package Options
- 24-pin QFN (4x4 mm), RoHS compliant
- 24-pin QSOP (easy to hand solder) RoHS compliant
- 20-pin QFN (3x3 mm), RoHS compliant
Comparator
- Programmable hysteresis and response time
- Configurable as interrupt or reset source
- Low current (< 0.4 µA)
Development Kit: C8051F996DK
Wake
Reset
C2CK/RST
Debug /
Programming
Hardware
UART
256 Byte SRAM
Timers 0,
1, 2, 3
256 Byte XRAM
VREG
Low Power
20 MHz
Oscillator
GND
XTAL1
XTAL2
XTAL3
XTAL4
External
Oscillator
Circuit
SmaRTClock
Oscillator
SPI
Crossbar Control
SFR
Bus
Ultra Low-Power MCU
P2.7/C2D
Analog Peripherals
6-bit
IREF
IREF0
Internal
External
VREF
VREF
A
M
U
X
12-bit
ADC
VDD
VREF
Temp
Sensor
14-Channel
Capacitance
To Digital
Converter
GND
CP0
System Clock
Configuration
Port 2
Drivers
SMBus
SYSCLK
Precision
24.5 MHz
Oscillator
Port 1
Drivers
P1.0/CP0+
P1.1/CP0P1.2
P1.3
P1.4
P1.5
P1.6/XTAL3
P1.7/XTAL4
Priority
Crossbar
Decoder
PCA/
WDT
CRC
Engine
Digital
Power
Port 0
Drivers
P0.0/VREF
P0.1/AGND
P0.2/XTAL1
P0.3/XTAL2
P0.4/TX
P0.5/RX
P0.6/CNVSTR
P0.7/IREF0
Digital Peripherals
8 kB ISP Flash
Program Memory
C2D
VDD
Port I/O Configuration
CIP-51 8051
Controller Core
Power On
Reset/PMU
+
-
P1.0
P1.1
Comparator
Copyright © 2010 by Silicon Laboratories
5.18.2010
C8051F99x
25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU
Selected Electrical Specifications
(At 25 C°)
Parameter
Conditions
Min
Typ
Max
Units
1.8
—
3.6
V
Clock = 24.5 MHz
(±2% internal precision oscillator)
—
150
—
µA/MHz
Sleep mode; BOD off
—
.010
—
µA
Sleep mode; BOD on
—
.050
—
µA
Sleep mode; smaRTClock running
—
.300
—
µA
Clock Frequency Range
DC
—
25
MHz
Wakeup Time
—
2
—
µs
Analog Settling Time
—
1.5
—
µs
Precision oscillator
24
24.5
25
MHz
Low power oscillator
18
20
22
MHz
12/10
bits
Supply Input Voltage
Supply Current with CPU Active
Supply Current (shutdown)
(VBAT = 1.8 V)
Internal Oscillator
Frequency
A/D Converter
Resolution
Throughput Rate
—
—
75/300
ksps
Resolution
—
—
16
bits
CDC Conversion Time
—
40
—
µs
Capacitive to Digital Converter
C8051F9xx Ultra Low Power Product Family
Part #
Flash
Mem.
RAM
(Bytes)
MIPS
(Peak)
Digital
I/O
Communications
ADC
Sensing
Channels
Operating
Voltage
Package
Dev kit
C8051F930
64 kB
4352
25
24
EMIF, I2C, 2xSPI, UART
10-bit
—
0.9–3.6 V
QFN32/LQFP32
C8051F930DK
C8051F931
64 kB
4352
25
16
10-bit
—
0.9–3.6 V
QFN24
C8051F930DK
C8051F920
32 kB
4352
25
24
10-bit
—
0.9–3.6 V
QFN32/LQFP32
C8051F930DK
C8051F921
32 kB
4352
25
16
I2C, 2xSPI, UART
10-bit
—
0.9–3.6 V
QFN24
C8051F930DK
C8051F911
16 kB
768
25
16
I2C,
2xSPI, UART
10-bit
—
0.9–3.6 V
QFN24/QSOP24
C8051F912DK
C8051F912
16 kB
768
25
16
2
I C, 2xSPI, UART
12-bit
—
0.9–3.6 V
QFN24/QSOP24
C8051F912DK
C8051F901
8 kB
768
25
16
2
I C, 2xSPI, UART
10-bit
—
0.9–3.6 V
QFN24/QSOP24
C8051F912DK
C8051F902
8 kB
768
25
16
I2C, 2xSPI, UART
12-bit
—
0.9–3.6 V
QFN24/QSOP24
C8051F912DK
C8051F980
8 kB
512
25
16
I2C, SPI, UART
12-bit
—
1.8–3.6 V
QFN20
C8051F996DK
C8051F981
8 kB
512
25
16
I2C,
—
—
1.8–3.6 V
QFN20
C8051F996DK
C8051F982
4 kB
512
25
16
I C, SPI, UART
10-bit
—
1.8–3.6 V
QFN20
C8051F996DK
C8051F983
4 kB
512
25
16
I2C,
SPI, UART
—
—
1.8–3.6 V
QFN20
C8051F996DK
C8051F985
2 kB
512
25
16
I2C, SPI, UART
—
—
1.8–3.6 V
QFN20
C8051F996DK
C8051F986
8 kB
512
25
17
I2C,
12-bit
—
1.8–3.6 V
QFN24/QSOP24
C8051F996DK
C8051F987
8 kB
512
25
17
I C, SPI, UART
—
—
1.8–3.6 V
QFN24/QSOP24
C8051F996DK
C8051F988
4 kB
512
25
17
I2C,
10-bit
—
1.8–3.6 V
QFN24/QSOP24
C8051F996DK
C8051F989
4 kB
512
25
17
I C, SPI, UART
—
—
1.8–3.6 V
QFN24/QSOP24
C8051F996DK
C8051F990
8 kB
512
25
16
I2C, SPI, UART
12-bit
13
1.8–3.6 V
QFN20
C8051F996DK
C8051F991
8 kB
512
25
16
I2C, SPI, UART
—
13
1.8–3.6 V
QFN20
C8051F996DK
1.8–3.6 V
QFN24/QSOP24
C8051F996DK
1.8–3.6 V
QFN24/QSOP24
C8051F996DK
2
I C, 2xSPI, UART
EMIF,
I2C,
2xSPI, UART
SPI, UART
2
SPI, UART
2
SPI, UART
2
C8051F996
8 kB
512
25
17
I2C, SPI, UART
12-bit
14
C8051F997
8 kB
512
25
17
I2C, SPI, UART
—
14
Ultra Low-Power MCU
Copyright © 2010 by Silicon Laboratories
5.18.2010
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