C8051F991-GM Silicon Laboratories Inc, C8051F991-GM Datasheet
C8051F991-GM
Manufacturer Part Number
C8051F991-GM
Description
IC MCU 8BIT 8KB FLASH 20QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F9xxr
Specifications of C8051F991-GM
Program Memory Type
FLASH
Program Memory Size
8KB (8K x 8)
Package / Case
20-UQFN, 20-µQFN
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, Cap Sense, POR, PWM, WDT
Number Of I /o
16
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F9x
Core
8051
Data Ram Size
512 B
Interface Type
I2C, SMBus, Enhanced UART, Enhanced SPI
Maximum Clock Frequency
7 KHz
Number Of Programmable I/os
16
Number Of Timers
4
Operating Supply Voltage
2.4 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F996DK
Minimum Operating Temperature
- 40 C
On-chip Adc
1 Analog Comparator
On-chip Dac
10 bit, 4 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1942-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F991-GM
Manufacturer:
Silicon
Quantity:
7 753
Capacitance to Digital Converter
-
-
-
-
-
Ultra-Low Power
-
-
-
-
-
-
Supply Voltage 1.8 to 3.6 V
-
-
Analog to Digital Converter
-
-
-
-
-
-
Internal 6-Bit Current Reference
-
-
Comparator
-
-
-
Development Kit: C8051F996DK
Ultra Low-Power MCU
Supports buttons, sliders, wheels, and capacitive proximity
sensing
Fast 40 µs per channel conversion time
16-bit resolution
Up to 14 input channels
Auto-accumulate up to 64x samples
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
Built-in brown-out detector
On-chip LDO regulator for core supply
75 ksps with 12-bit resolution (F990/6)
330 ksps with 8-bit resolution
Up to 10-channels
Autonomous burst mode with 16-bit averaging accumulator
VREF from external pin, VDD, or internal regulator
Built-in temperature sensor
2 ranges: source or sink capability
Up to 14-bit resolution via PWM interpolation
Programmable hysteresis and response time
Configurable as interrupt or reset source
Low current (< 0.4 µA)
C2CK/RST
VDD
GND
25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU
Programming
Reset/PMU
C2D
Power On
Hardware
Debug /
XTAL1
XTAL2
XTAL3
XTAL4
Wake
Reset
VREG
Copyright © 2010 by Silicon Laboratories
SmaRTClock
Low Power
24.5 MHz
Precision
Oscillator
Oscillator
Oscillator
External
Oscillator
20 MHz
Controller Core
Digital
Power
Circuit
System Clock
Configuration
Program Memory
CIP-51 8051
256 Byte SRAM
256 Byte XRAM
8 kB ISP Flash
SYSCLK
Engine
CRC
SFR
Bus
Internal
12-bit
ADC
VREF
Timers 0,
SMBus
UART
1, 2, 3
Analog Peripherals
6-bit
IREF
Digital Peripherals
PCA/
WDT
Port I/O Configuration
SPI
Crossbar Control
High-Speed 8051 µC Core
-
-
-
Memory
-
-
On-Chip Debug
-
Digital Peripherals
-
-
-
-
-
Clock Sources
-
-
-
-
Temperature Range: -40 to +85 °C
Package Options
-
-
-
CP0
External
VREF
Pipe-lined instruction architecture; executes 70% of instructions
in 1 or 2 system clocks
25 MIPS peak throughput with 25 MHz clock
Expanded interrupt handler
512 bytes internal data RAM (256 + 256)
8 kB Flash; In-system programmable in 512 byte sectors; Full
read/write/erase functionality over the entire supply range
On-chip debug circuitry facilitates full speed, non-intrusive in-
system debug
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/
compare modules and enhanced PWM functionality
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
modes
24-pin QFN (4x4 mm), RoHS compliant
24-pin QSOP (easy to hand solder) RoHS compliant
20-pin QFN (3x3 mm), RoHS compliant
Comparator
A
M
U
X
+
Crossbar
-
Decoder
Priority
IREF0
Sensor
VREF
Temp
VDD
GND
Capacitance
14-Channel
Converter
To Digital
Drivers
Drivers
Drivers
Port 0
Port 1
Port 2
P1.0
P1.1
P0.2/XTAL1
P0.3/XTAL2
P0.0/VREF
P0.1/AGND
P0.4/TX
P0.5/RX
P0.6/CNVSTR
P0.7/IREF0
P1.0/CP0+
P1.1/CP0-
P1.2
P1.3
P1.4
P1.5
P1.6/XTAL3
P1.7/XTAL4
P2.7/C2D
C8051F99x
5.18.2010
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C8051F991-GM Summary of contents
Page 1
MIPS Flash, Ultra Low Power, Capacitive Sensing MCU Capacitance to Digital Converter - Supports buttons, sliders, wheels, and capacitive proximity sensing - Fast 40 µs per channel conversion time - 16-bit resolution - input ...
Page 2
... C8051F988 4 kB 512 25 C8051F989 4 kB 512 25 C8051F990 8 kB 512 25 C8051F991 8 kB 512 25 C8051F996 8 kB 512 25 C8051F997 8 kB 512 25 Ultra Low-Power MCU Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders Conditions Clock = 24 ...