Datasheet > W77IC32P-25

W77IC32P-25

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W77IC32P-25 数据手册

Preliminary W77IC32

8 BIT MICROCONTROLLER

GENERAL DESCRIPTION

The W77IC32 is a fast 8051 compatible microcontroller with a redesigned processor core without

wasted clock and memory cycles. As a result, it executes every 8051 instruction faster than the

original 8051 for the same crystal speed. Typically, the instruction executing time of W77IC32 is 1.5

to 3 times faster then that of traditional 8051, depending on the type of instruction. In general, the

overall performance is about 2.5 times better than the original for the same crystal speed. Giving the

same throughput with lower clock speed, power consumption has been improved. Consequently, the

W77IC32 is a fully static CMOS design; it can also be operated at a lower crystal clock. W77IC32

support on-chip 1KB SRAM without external memory component and glue logic, saving more I/O pins

for users application usage if they use on-chip SRAM instead of external SRAM.

FEATURES

· 8-bit CMOS microcontroller

· High speed architecture of 4 clocks/machine cycle

· Pin compatible with standard 80C52

· Instruction-set compatible with MCS-51

· Four 8-bit I/O Ports

· One extra 4-bit I/O port and Wait State control signal (available on 44-pin PLCC/QFP package)

· Three 16-bit Timers

· 12 interrupt sources with two levels of priority

· On-chip oscillator and clock circuitry

· Two enhanced full duplex serial ports

· 256 bytes scratch-pad RAM

· 1KB on-chip SRAM for MOVX instruction

· Programmable Watchdog Timer

· Dual 16-bit Data Pointers

· Software programmable access cycle to external RAM/peripherals

· Packages:

- DIP 40: W77IC32-25

- PLCC 44: W77IC32P-25

Publication Release Date: March 2000

- 1 -

Revision A0

12 3 4 5 6 7...70

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型号	品牌	获取价格	描述	数据表
W77IE58	WINBOND	获取价格	8-BIT MICROCONTROLLER
W77IE58_06	WINBOND	获取价格	8-BIT MICROCONTROLLER
W77IE58A25DL	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 25MHz, CMOS, PDIP40, ROHS COMPLIANT, DIP-40
W77IE58A25PL	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 25MHz, CMOS, PQCC44, ROHS COMPLIANT, PLASTIC, LCC-44
W77IE58P	WINBOND	获取价格	Microcontroller, 8-Bit, FLASH, 25MHz, CMOS, PQCC44, PLASTIC, LCC-44
W77L032A	WINBOND	获取价格	8-BIT MICROCONTROLLER
W77L032A	NUVOTON	获取价格	dual DPTR， Extra I/O port
W77L032A25DL	WINBOND	获取价格	8-BIT MICROCONTROLLER
W77L032A25FL	WINBOND	获取价格	8-BIT MICROCONTROLLER
W77L032A25PL	WINBOND	获取价格	8-BIT MICROCONTROLLER