C8051F921 [SILICON]

25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU; 25 MIPS ， 8 kB的闪存，超低功耗，电容式感应MCU


型号：	C8051F921
厂家：	SILICON
描述：	25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU 25 MIPS ， 8 kB的闪存，超低功耗，电容式感应MCU 闪存
文件：	总2页 (文件大小：48K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

C8051F99x

25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU

Capacitance to Digital Converter

High-Speed 8051 µC Core

Pipe-lined instruction architecture; executes 70% of instructions

Supports buttons, sliders, wheels, and capacitive proximity

sensing

in 1 or 2 system clocks

Fast 40 µs per channel conversion time

25 MIPS peak throughput with 25 MHz clock

16-bit resolution

Expanded interrupt handler

Up to 14 input channels

Auto-accumulate up to 64x samples

Memory

512 bytes internal data RAM (256 + 256)

Ultra-Low Power

8 kB Flash; In-system programmable in 512 byte sectors; Full

read/write/erase functionality over the entire supply range

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

On-Chip Debug

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

system debug

Digital Peripherals

17 port I/O; Programmable drive strength

Supply Voltage 1.8 to 3.6 V

Hardware enhanced UART, SPI and SMBus™ serial ports

CRC block provides 16-Bit CCITT polynomial calculation

Four general purpose 16-bit counter/timers

Built-in brown-out detector

On-chip LDO regulator for core supply

Analog to Digital Converter

16-bit programmable counter array (PCA) with three capture/

compare modules and enhanced PWM functionality

75 ksps with 12-bit resolution (F990/6)

330 ksps with 8-bit resolution

Clock Sources

Up to 10-channels

24.5 MHz ±2% oscillator; supports crystal-less UART operation

Autonomous burst mode with 16-bit averaging accumulator

VREF from external pin, VDD, or internal regulator

Built-in temperature sensor

Low power internal oscillator: 20 MHz

External oscillator: Crystal, RC, C, CMOS clock

Internal 6-Bit Current Reference

Can switch clock sources on-the-fly; useful for power saving

modes

2 ranges: source or sink capability

Up to 14-bit resolution via PWM interpolation

Temperature Range: -40 to +85 °C

Package Options

Comparator

Programmable hysteresis and response time

Configurable as interrupt or reset source

Low current (< 0.4 µA)

24-pin QFN (4x4 mm), RoHS compliant

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

20-pin QFN (3x3 mm), RoHS compliant

Development Kit: C8051F996DK

Port I/O Configuration

CIP-51 8051

Power On

P0.0/VREF

P0.1/AGND

P0.2/XTAL1

P0.3/XTAL2

P0.4/TX

P0.5/RX

P0.6/CNVSTR

P0.7/IREF0

Reset/PMU

Controller Core

Digital Peripherals

UART

Wake

Reset

8 kB ISP Flash

Program Memory

Port 0

Drivers

Timers 0,

256 Byte SRAM

256 Byte XRAM

Debug /

Programming

Hardware

1, 2, 3

C2CK/RST

Priority

Crossbar

Decoder

WDT

PCA/

P1.0/CP0+

P1.1/CP0-

P1.2

P1.3

P1.4

P1.5

P1.6/XTAL3

P1.7/XTAL4

C2D

CRC

Engine

SMBus

SPI

VDD

VREG

Port 1

Drivers

Digital

Power

SYSCLK

Crossbar Control

SFR

Bus

Precision

24.5 MHz

Oscillator

Analog Peripherals

Port 2

Drivers

P2.7/C2D

Low Power

20 MHz

6-bit

IREF0

IREF

Oscillator

GND

External

VREF

Internal

VREF

14-Channel

Capacitance

To Digital

External

Oscillator

Circuit

XTAL1

XTAL2

VDD

VREF

Temp

Sensor

Converter

12-bit

ADC

XTAL3

XTAL4

SmaRTClock

Oscillator

GND

CP0

P1.0

P1.1

System Clock

Configuration

Comparator

Ultra Low-Power MCU

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

Supply Input Voltage

1.8

—

3.6

Clock = 24.5 MHz

(±2% internal precision oscillator)

Supply Current with CPU Active

—

150

—

µA/MHz

Sleep mode; BOD off

Sleep mode; BOD on

—

.010

.050

.300

—

µA

Supply Current (shutdown)

(V_BAT= 1.8 V)

Sleep mode; smaRTClock running

—

µA

Clock Frequency Range

Wakeup Time

—

MHz

µs

Analog Settling Time

—

1.5

µs

Internal Oscillator

Precision oscillator

Low power oscillator

A/D Converter

24.5

MHz

Frequency

Resolution

12/10

bits

Throughput Rate

—

75/300

ksps

Capacitive to Digital Converter

Resolution

—

bits

µs

CDC Conversion Time

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

C8051F931

C8051F920

C8051F921

C8051F911

C8051F912

C8051F901

C8051F902

C8051F980

C8051F981

C8051F982

C8051F983

C8051F985

C8051F986

C8051F987

C8051F988

C8051F989

C8051F990

64 kB

32 kB

16 kB

8 kB

4 kB

2 kB

8 kB

4 kB

8 kB

4352

768

512

10-bit

12-bit

10-bit

12-bit

—

0.9–3.6 V

1.8–3.6 V

QFN32/LQFP32

QFN24

C8051F930DK

C8051F912DK

C8051F996DK

EMIF, I C, 2xSPI, UART

I C, 2xSPI, UART

QFN32/LQFP32

QFN24

EMIF, I C, 2xSPI, UART

I C, 2xSPI, UART

QFN24/QSOP24

QFN20

I C, 2xSPI, UART

I C, SPI, UART

QFN20

I C, SPI, UART

10-bit

—

QFN20

I C, SPI, UART

QFN20

I C, SPI, UART

—

QFN20

I C, SPI, UART

12-bit

—

QFN24/QSOP24

QFN20

I C, SPI, UART

10-bit

—

I C, SPI, UART

12-bit

—

I C, SPI, UART

C8051F991

C8051F996

C8051F997

8 kB

512

QFN20

C8051F996DK

I C, SPI, UART

12-bit

—

QFN24/QSOP24

I C, SPI, UART

Ultra Low-Power MCU

5.18.2010

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

C8051F921 [SILICON]

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