C8051F911 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

C8051F911

Single/Dual Battery, 0.9–3.6 V, 16–8 kB, SmaRTClock, 12/10-Bit ADC MCU

Silicon Laboratories 

C8051F91x-C8051F90x

Single/Dual Battery, 0.9–3.6 V, 16–8 kB, SmaRTClock, 12/10-Bit ADC MCU

Ultra-Low Power

- 160 uA/MHz in active mode (24.5 MHz clock)

- 2 us wake-up time (two-cell mode)

- 10 nA sleep mode with memory retention;

- 50 nA sleep mode with brownout detector

- 300 nA sleep mode with LFO (‘F912/02 only)

- 600 nA sleep mode with external crystal

Supply Voltage 0.9 to 3.6 V

- One-cell mode supports 0.9 to 1.8 V operation

(‘F911/01). ‘F912 and ‘F902 devices can operate

from 0.9 to 3.6 V continuously

- Two-cell mode supports 1.8 to 3.6 V operation

- Built-in dc-dc converter with 1.8 to 3.3 V output for

use in one-cell mode

- Built-in LDO regulator allows a high analog supply

voltage and low digital core voltage

- 2 built in supply monitors (brownout detectors)

12-Bit or 10-Bit Analog to Digital Converter

- ±1 LSB INL (10-bit mode); ±1.5 LSB INL (12-bit

mode, ‘F912/02 only) no missing codes

- Programmable throughput up to 300 ksps (10-Bit

Mode) or 75 ksps (12-bit mode, ‘F912/02 only)

- Up to 15 external inputs

- On-chip voltage reference

- On-Chip PGA allows measuring voltages up to twice

the reference voltage

- 16-bit auto-averaging accumulator with burst mode

provides increased ADC resolution

- Data dependent windowed interrupt generator

- Built-in temperature sensor

Two Comparators

- Programmable hysteresis and response time

- Configurable as wake-up or reset source

- Up to 15 Capacitive Touch Sense Inputs

6-Bit Programmable Current Reference

- Up to ±500 µA. Can be used as a bias or for

generating a custom reference voltage

- PWM enhanced mode on ‘F912/02 devices

High-Speed 8051 µC Core

- Pipelined instruction architecture; executes 70% of

instructions in 1 or 2 system clocks

- Up to 25 MIPS throughput with 25 MHz clock

- Expanded interrupt handler

Memory

- 768 bytes RAM

- 16 kB (‘F912/1), or 8 kB (‘F902/1) Flash; In-system

programmable

Digital Peripherals

- 16 port I/O; All 5 V tolerant with high sink 

current and programmable drive strength

- Hardware SMBus™ (I2C™ Compatible), 2 x SPI™,

and UART serial ports available concurrently

- Four general purpose 16-bit counter/timers

- Programmable 16-bit counter/timer array with six

capture/compare modules and watchdog timer

Clock Sources

- Internal oscillators: 24.5 MHz, 2% accuracy

supports UART operation; 20 MHz low power

oscillator requires very little bias current.

- External oscillator: Crystal, RC, C, or CMOS clock

- SmaRTClock oscillator: 32 kHz crystal or internal

low frequency oscillator (‘F912/02) or self-oscillate

mode

- Can switch between clock sources on-the-fly; useful

in implementing various power saving modes

On-Chip Debug

- On-chip debug circuitry facilitates full-speed, non-

intrusive in-system debug (no emulator required)

- Provides 4 breakpoints, single stepping

- Inspect/modify memory and registers

- Complete development kit

Packages

- 24-pin QFN (4 x 4 mm)

- 24-pin QSOP (easy to hand-solder)

- Tested die available

Temperature Range: –40 to +85 °C

ANALOG

DIGITAL I/O

PERIPHERALS

A

12/10-bit

M 75/300 ksps IREF

U

X

ADC

TEMP

SENSOR

VREF

VREG

+

+

–

–

VOLTAGE

COMPARATORS

UART

SMBus

2 x SPI

PCA

Timer 0

Timer 1

Timer 2

Timer 3

CRC

Port 0

Port 1

Port 2

24.5 MHz PRECISION

INTERNAL OSCILLATOR

20 MHz LOW POWER

INTERNAL OSCILLATOR

External Oscillator

HARDWARE SmaRTClock

HIGH-SPEED CONTROLLER CORE

16/8 kB

ISP FLASH

FLEXIBLE

INTERRUPTS

8051 CPU

(25 MIPS)

DEBUG

CIRCUITRY

768 B SRAM

POR WDT

Rev. 1.0 9/10

Copyright © 2010 by Silicon Laboratories

C8051F91x-C8051F90x

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