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W77C516 Datasheet PDF

Winbond Electronics Corporation W77C516

The W77C516 is a fast 8051 compatible microcontroller with a redesigned processor core without wasted clock and memory cycles. Typically, the instruction executing time of W77C516 is 1.5 to 3 times faster then that of traditional 8051, depending on the type of instruction.
Part No. W77C516
Datasheet W77C516 Download
Manufacturer
Winbond Electronics Corporation
Description 8-BIT Microcontroller
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W77C516 datasheet page 1 preview

GENERAL DESCRIPTION

As a result, it executes every 8051 instruction faster than the original 8051 for the same crystal speed. 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 W77C516 is a fully static CMOS design; it can also be operated at a lower crystal clock. The W77C516 provides operating voltage from 4.5V to 5.5V. All W77C516 types also 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 runs up to 40 MHz
● Pin compatible with standard 80C52
● Instruction-set compatible with MCS-51
● 64KB on-chip Mask-ROM
● Four 8-bit I/O Ports
● One extra 4-bit I/O port and Wait State control signal (available on 44-pin PLCC...
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