W78L52F-24中文資料華邦電子數(shù)據(jù)手冊PDF規(guī)格書

GENERAL DESCRIPTION

The W78L52 microcontroller supplies a wider frequency and supply voltage range than most 8-bit microcontrollers on the market. It is compatible with the industry standard 80C52 microcontroller series. The W78L52 contains four 8-bit bidirectional parallel ports, one extra 4-bit bit-addressable I/O port (Port 4) and two additional external interrupts (INT2 , INT3 ), three 16-bit timer/counters, one watchdog timer and a serial port. These peripherals are supported by a eight-source, two-level interrupt capability. There are 256 bytes of RAM and an 8K byte mask ROM for application programs.

FEATURES

? Fully static design

? Supply voltage of 1.8V to 5.5V

? DC-24 MHz operation

? 256 bytes of on-chip scratchpad RAM

? 8K bytes of on-chip mask ROM

? 64K bytes program memory address space

? 64K bytes data memory address space

? Four 8-bit bidirectional ports

? Three 16-bit timer/counters

? One full duplex serial port

? Eight-source, two-level interrupt capability

? One extra 4-bit bit-addressable I/O port

? Two additional external interrupts INT2 / INT3

? Watchdog timer

? EMI reduction mode

? Built-in power management

? Code protection

? Packages:

- DIP 40: W78L52-24

- PLCC 44: W78L52P-24

- QFP 44: W78L52F-24