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W742S81A PDF预览

W742S81A

更新时间: 2024-11-16 22:14:39
品牌 Logo 应用领域
华邦 - WINBOND 微控制器
页数 文件大小 规格书
47页 239K
描述
4 BIT MICROCONTROLLER

W742S81A 技术参数

生命周期:Obsolete包装说明:QFP, QFP100,.75X.99
Reach Compliance Code:unknownHTS代码:8542.31.00.01
风险等级:5.82具有ADC:NO
地址总线宽度:位大小:4
最大时钟频率:3.58 MHzDAC 通道:NO
DMA 通道:NO外部数据总线宽度:
JESD-30 代码:R-PQFP-G100I/O 线路数量:24
端子数量:100最高工作温度:70 °C
最低工作温度:PWM 通道:NO
封装主体材料:PLASTIC/EPOXY封装代码:QFP
封装等效代码:QFP100,.75X.99封装形状:RECTANGULAR
封装形式:FLATPACK电源:3 V
认证状态:Not QualifiedRAM(字节):1024
ROM(单词):16384ROM可编程性:FLASH
速度:3.58 MHz子类别:Microcontrollers
最大压摆率:2.5 mA最大供电电压:5.5 V
最小供电电压:2.4 V标称供电电压:3 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子形式:GULL WING
端子节距:0.635 mm端子位置:QUAD
uPs/uCs/外围集成电路类型:MICROCONTROLLER

W742S81A 数据手册

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W742S81A  
4-BIT MICROCONTROLLER  
1. GENERAL DESCRIPTION  
The W742S81A is a high-performance 4-bit microcontroller (µC) that provides an LCD driver. The device  
contains a 4-bit ALU, two 8-bit timers, two dividers (for two oscillators) in dual-clock operation, a 40 × 4  
LCD driver, six 4-bit I/O ports (including 1 output port for LED driving), and one channel DTMF  
generator. There are also five interrupt sources and 16-levels subroutine nesting for interrupt applications.  
The W742S81A operates on very low current and has two power reduction modes, that is the dual-clock  
slow operation and STOP mode, which help to minimize power dissipation.  
2. FEATURES  
Operating voltage: 2.4V – 5.5V  
Dual-clock operation or single-clock operation (By option)  
Main-oscillator  
Connect to 3.58MHz crystal or 400KHz that can be selected by option code  
Crystal or RC oscillator can be selected by code option  
Sub-oscillator  
Connect to 32768 Hz crystal only  
Memory  
16384 x 16 bits program electrical erasable EPROM (including 64K x 4 bit look-up table)  
2048 x 4 bits data RAM (including 16 nibbles x 16 pages working registers)  
40 x 4 LCD data RAM  
24 input/output pins  
Port for input only: 1 ports/4 pins(RC)  
Input/output ports: 3 ports/12 pins(RA, RB & RD)  
High sink current output port for LED driving: 1 port /4 pins(RE)  
Port for output only: 1 port/ 4 pins(RF)  
Power-down mode  
Hold function: no operation ( main-oscillator and sub-oscillator still operate)  
Stop function: no operation ( main-oscillator and sub-oscillator are stopped)  
Dual-clock slow operation mode: system is operated by the sub-oscillator (FOSC=Fs and Fm is  
stopped)  
Five types of interrupts  
Four internal interrupts (Divider0, Divider1, Timer 0, Timer 1)  
One external interrupts (RC Port)  
Publication Release Date: March 2003  
Revision A1  
- 1 -  

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