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W741C240 PDF预览

W741C240

更新时间: 2024-09-17 18:41:39
品牌 Logo 应用领域
华邦 - WINBOND 时钟微控制器外围集成电路
页数 文件大小 规格书
40页 410K
描述
Microcontroller, 4-Bit, MROM, CMOS, PQFP64, QFP-64

W741C240 技术参数

生命周期:Obsolete零件包装代码:QFP
包装说明:QFP,针数:64
Reach Compliance Code:unknownHTS代码:8542.31.00.01
风险等级:5.84具有ADC:NO
地址总线宽度:位大小:4
最大时钟频率:1 MHzDAC 通道:NO
DMA 通道:NO外部数据总线宽度:
JESD-30 代码:R-PQFP-G64I/O 线路数量:13
端子数量:64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
封装形状:RECTANGULAR封装形式:FLATPACK
认证状态:Not QualifiedROM可编程性:MROM
最大供电电压:3.6 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端子位置:QUAD
uPs/uCs/外围集成电路类型:MICROCONTROLLERBase Number Matches:1

W741C240 数据手册

 浏览型号W741C240的Datasheet PDF文件第2页浏览型号W741C240的Datasheet PDF文件第3页浏览型号W741C240的Datasheet PDF文件第4页浏览型号W741C240的Datasheet PDF文件第5页浏览型号W741C240的Datasheet PDF文件第6页浏览型号W741C240的Datasheet PDF文件第7页 
W741C240  
4-BIT MICROCONTROLLER  
GENERAL DESCRIPTION  
The W741C240 is a high-performance 4-bit microcontroller (mC) that provides an LCD driver. The  
device contains a 4-bit ALU, a 8-bit timers, a divider, a 24 ´ 4 LCD driver, and three 4-bit I/O ports.  
There are also three interrupt sources and 8-level subroutine nesting for interrupt applications. The  
W741C240 operates on low voltage and very low current and has two power reduction modes, hold  
mode and stop mode, which help to minimize power dissipation.  
The W741C240 is suitable for caculators, simple watches and clocks, multiple I/O products, keyboard  
controllers, speech synthesis LSI controllers, and other products.  
FEATURES  
· Operating voltage: 2.4V to 3.6V (LCD drive voltage: 3.0V or 4.5V)  
· Crystal/RC oscillation circuit selectable by code option for system clock  
· Crystal oscillator: 32.768 KHz only  
· RC oscillator: 1 MHz (maximum)  
- High-frequency (400 KHz to 1 MHz) or low-frequency (below 400 KHz) oscillation option must  
be determined by the code option.  
- In RC mode, attention must be paid to the high/low frequency oscillation option, because the  
LCD driver frequency is related to this option.  
· Memory  
- 2048 ´ 16 bit program ROM (shared with 2K ´ 4 bit look-up table)  
- 64 ´ 4 bit data RAM (shared with 16 working registers)  
- 24 ´ 4 LCD data RAM  
· 13 input/output pins  
- Ports for input only: 1 port/4 pins  
- Input/output ports: 2 ports/8 pins  
- MFP output pin: 1 pin (MFP)  
· Power-down mode  
- Hold function: no operation (except for oscillator)  
- Stop function: no operation (including oscillator)  
· Three types of interrupts  
- Two internal interrupts (Divider 0, Timer 1)  
- One external interrupts (Port RC)  
· LCD driver output  
- 24 segment ´ 4 common  
- Static, 1/2 duty (1/2 bias), 1/3 duty (1/2 or 1/3 bias), 1/4 duty (1/3 bias) driving mode can be  
selected  
Publication Release Date: May 1999  
- 1 -  
Revision A1  

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