描述 Description

The T8xC5101/02 family is a high performance CMOS ROM, OTP, EPROM derivative of the 80C51 CMOS single chip 8-bit microcontroller.

The T8xC5101/02 family is a low pin count device where only Port 1, port 3 and 2/6 bits of a new port 4 are outputted. This prevents any external access, like external program memory access (fetch, MOVC) or external data memory (MOVX). The T8xC5101/02 family retains all features of the 80C51 with extended capacity 8 KB ROM (5102), 16 KB ROM (5101)/16 KB EPROM/OTP (5101), 256 bytes of internal RAM, a 6-source, 4-level interrupt system, an on-chip oscillator and three timer/counters.

特性 Features

? 80C51 Code Compatible

– 8051 Instruction Compatible

– 16 I/O + 2 Outputs in 24 Pin Packages

16 I/O + 6 Outputs in 28 Pin Packages

– Three 16-bit Timer/Counters

– 256 Bytes Scratchpad RAM

? Program Memory

– 8 KB ROM T83C5102

– 16 KB ROM T83C5101

– 16 KB EPROM/OTP T87C5101

? High-speed Architecture

? 40 MHz from 2.7 to 5.5V, Commercial or Industrial Temperature Range:

– 40 MHz with a 40 MHz Crystal In Std. Mode

– 40 MHz with a 20 MHz Crystal In X2 Mode

? 66 MHz from 4.5 to 5.5V, Commercial Temperature Range

– 40 MHz with a 40 MHz Crystal in Std. Mode

– 66 MHz with a 33 MHz Crystal in X2 Mode

? Dual Data Pointer

? On-chip eXpanded RAM (XRAM) (256 bytes)

? Programmable Clock Out and Up/Down Timer/Counter 2

? Asynchronous Port Reset

? Interrupt Structure with

– 6 Interrupt Sources,

– 4-Level Priority Interrupt System

? Full-duplex Enhanced UART

– Framing Error Detection

– Automatic Address Recognition

? Low EMI (no ALE)

? Power Control Modes

– Idle Mode

– Power-down Mode

? Packages: SO24, DIL24, SSOP24, SO28