C8051F99X_14 datasheet, PDF - EEWORLD Datasheet

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C8051F99X_14: Description25 MIPS, 8 kB Flash, Ultra Low Power, Capacitive Sensing MCU; File Size43KB，3 Pages; ManufacturerSILABS; Websitehttp://www.silabs.com

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C8051F99X_14 Overview

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

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C8051F99x

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

Capacitance to Digital Converter

Supports buttons, sliders, wheels, and capacitive proximity

16-bit resolution

Up to 14 input channels

Auto-accumulate up to 64x samples

sensing

Fast 40 µs per channel conversion time

High-Speed 8051 µC Core

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

Memory

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

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

Supply Voltage 1.8 to 3.6 V

Built-in brown-out detector

On-chip LDO regulator for core supply

Analog to Digital Converter

On-Chip Debug

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

system debug

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

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/

compare modules and enhanced PWM functionality

Internal 6-Bit Current Reference

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

modes

2 ranges: source or sink capability

Up to 14-bit resolution via PWM interpolation

Comparator

Programmable hysteresis and response time

Configurable as interrupt or reset source

Low current (< 0.4 µA)

Development Kit: C8051F996DK

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

Power On

Reset/PMU

Wake

Reset

CIP-51 8051

Controller Core

8 kB ISP Flash

Program Memory

256 Byte SRAM

256 Byte XRAM

Port I/O Configuration

Digital Peripherals

UART

Timers 0,

1, 2, 3

PCA/

WDT

SMBus

SPI

Crossbar Control

Port 1

Drivers

Priority

Crossbar

Decoder

Port 0

Drivers

C2CK/RST

Debug /

Programming

Hardware

C2D

P0.0/VREF

P0.1/AGND

P0.2/XTAL1

P0.3/XTAL2

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

VDD

VREG

CRC

Engine

Digital

Power

SYSCLK

Precision

24.5 MHz

Oscillator

Low Power

20 MHz

Oscillator

XTAL1

XTAL2

XTAL3

XTAL4

External

Oscillator

Circuit

SmaRTClock

Oscillator

SFR

Bus

Analog Peripherals

6-bit

IREF

Internal

VREF

External

VREF

CP0

VDD

VREF

Temp

Sensor

GND

IREF0

Port 2

Drivers

GND

12-bit

ADC

14-Channel

Capacitance

To Digital

Converter

System Clock

Configuration

P1.0

P1.1

Comparator

Ultra Low-Power MCU

5.18.2010

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