Datasheet > MG87FE/L52AE

MG87FE/L52AE

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MG87FE/L52AE 数据手册

Megawin Technology Co., Ltd.

MG87FE/L52

1.0 General Description

MG87FE/L52 is a single-chip 8 bits microcontroller with the instruction sets fully compatible

with industrial-standard 80C51 series microcontroller. 8K bytes flash memory and 256 bytes

RAM has been embedded to provide wide field application. In-System-Programming and

In-Application-Programming allow the users to download new code or data while the

microcontroller sits in the application. This device executes one machine cycle in 6 clock or 12

clock cycles. MG87FE/L52 has four 8-bit I/O ports, one 4-bit I/O ports, three 16-bit

timer/counters, an eight-source, four-priority-level interrupt structure, an enhanced UART,

on-chip crystal oscillator.

Excellent flash-endurance, flash-retention, and code-protecting security make MG87FE/L52 as

an excellent micro-controller.

2.0 Features

80C51 Central Processing Unit

8KB On-Chip program memory for program ROM, ISP ROM & IAP zone.

ISP capability; optional 0.5K/1KB/1.5K~3.5KB ISP memory shared with 8KB flash memory.

IAP capability; program controlled IAP memory size shared with 8KB flash memory.

On-Chip 256 bytes scratch-pad RAM. Also, the MCU can address up to 64K bytes external

memory.

MOVC-disabling, encrypting, and locking flash memory realize security mechanism.

Three 16-bits timer/counter, Timer2 is an up/down counter with programmable clock output

on P1.0

Eight sources, four-level-priority interrupt capability

Enhanced UART, provides frame-error detection and hardware address-recognition

Dual DPTR for fast-accessing of data memory

15 bits Watch-Dog-Timer with 8-bits pre-scaler, one-time enabled

Low EMI: inhibits ALE emission

Power control: Idle mode and Power-Down mode; Power-Down can be woken-up by

P3.2/P3.3/P4.2/P4.3, Idle mode could be woken up by all interrupt sources.

I/O port: 32+4 I/O ports :

PDIP-40 (MG87FE/L52AE or MG87FE/L52GE) has 32 I/O ports;

Preliminary ver 1.3

Date: 2009-JAN-20

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