Rainbow-electronics AT90SCR050 Manual do Utilizador descarregar pdf (Página 3)

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TPG0450X–SMS–09Nov09

AT90SCR050

Supply

Monitor

Vcc

XTAL1

XTAL2

Interrupt

Controller

Watchdog

48MHz

USB

Power

Management

SRAM

768 Bytes

ROM

16 KB

cpu

USB DMA

PORT D

USART

(in SPI mode)

PORT B

Pin Change IT

Pin Change IT

PORT C

LED port

8bit T/C 0

16bit T/C 1

Timers/Counters

USB device

Clock

Management

Smart Card Interface

Standard ISO7816

CPRES

CCLK

CRST

D-

CIO

CC4

CC8

UCap

D+

PD1, TXD, PCINT17

PD0, RXD, PCINT16

PB0, T0, XCK, PCINT8

PC2, LED0

1. Block Diagram

Figure 1-1. Block Diagram

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