AT89C5122 Ver la hoja de datos (PDF) - Atmel Corporation

Número de pieza

componentes Descripción

Fabricante

AT89C5122

C51 Microcontroller with USB and Smart Card Reader Interfaces

Atmel Corporation 

AT8xC5122/AT83R5122 Block Diagram

3.3 V

Regulator

XTAL1

XTAL2

PLLF

RST

8 MHz

Oscillator

PLL

WATCH-DOG

POR

PFD

RESET

256 x 8

RAM

256 x 8

RAM

512 x 8

XRAM

UART

Interf ace

16-BIT

TIMERS

Interrupt

Controller

Alternate

Card

DC/DC

Conv erter

INTERNALADDRESSANDDATABUS

32K x 8

R OM (1)

32K x 8

CRAM(1)

32K x 8

E2PROM(1)

512 x 8

E2PROM(1)

SPI

Interf ace

ExternalMemory

Controller

USB

Interf ace

3.3V

Regulator

CPRES

CRST

CCLK

CIO

CC4

CC8

8-BIT

PORT

3-BIT

PORT

8-BIT

PORT

ParallelI/OPorts

8-BIT

PORT

6-BIT

PORT

8-BIT

PORT

LED's

KBD

Interf ace

Note 1 : the implementation of these f eatures depends on product v ersions

AT83C5123 Block Diagram

3.3 V

Regulator

XTAL1

XTAL2

PLLF

RST

8 MHz

Oscillator

PLL

WATCH-DOG

POR

PFD

RESET

256 x 8

RAM

256 x 8

RAM

512 x 8

XRAM

UART

Interf ace

16-BIT

TIMERS

Interrupt

Controller

Alternate

Card

DC/DC

Conv erter

INTERNALADDRESSANDDATABUS

30K x 8

ROM

512 x 8

E2PROM(1)

USB

Interf ace

3.3V

Regulator

3-BIT

PORT

ParallelI/OPorts

8-BIT

PORT

1-BIT

PORT

LED's

Note 1 : the implementation of these f eatures depends on product v ersions

CPRES

CRST

CCLK

CIO

CC4

CC8

4 AT83R5122, AT8xC5122/23

4202F–SCR–07/2008

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