SST89E54RD2(2007) View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

View to exact match

SST89E54RD2
(Rev.:2007)

FlashFlex MCU

Silicon Storage Technology 

Data Sheet

1.0 FUNCTIONAL BLOCKS

FlashFlex MCU

SST89E54RD2/RD / SST89E58RD2/RD

SST89V54RD2/RD / SST89V58RD2/RD

Oscillator

8051

CPU Core

ALU,

ACC,

B-Register,

Instruction Register,

Program Counter,

Timing and Control

Interrupt

Control

10 Interrupts

Watchdog Timer

SuperFlash

EEPROM

Primary

Block

16K/32K x8

Secondary

Block

8K x8

Security

Lock

Timer 0 (16-bit)

Timer 1 (16-bit)

Timer 2 (16-bit)

PCA

Flash Control Unit

RAM

1K x8

I/O Port 0

I/O Port 1

I/O Port 2

I/O Port 3

I/O Port 4

8

I/O

8

I/O

8

I/O

8

I/O

4

I/O

SPI

Enhanced

UART

1255 B1.2

FIGURE 1-1: Functional Block Diagram

©2007 Silicon Storage Technology, Inc.

6

S71255-08-000

1/07

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