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參數資料
| 型號： | W541C250 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT MICROCONTROLLER |
| 中文描述： | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數： | 2/10頁 |
| 文件大小： | 205K |
| 代理商： | W541C250 |
W541C250
- 2 -
1. GENERAL DESCRIPTION
The W541C250 is fully compatible with W741C250 in the terms of pin assignment and IC functon. It is
a high-performance 4-bit microcontroller (
μ
C) that provides an LCD driver. The device contains a 4-bit
ALU, two 8-bit timers, a divider, a 24
×
4 LCD driver, and five 4-bit I/O ports (including 1 output port for
LED driving). There are also five interrupt sources and 8-level subroutine nesting for interrupt
applications. The W541C250 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 W541C250 is suitable for remote controllers, watches and clocks, multiple I/O products, keyboard
controllers, speech synthesis LSI controllers, and other products.
2. FEATURES
Operating voltage: 2.4 ~ 5.5V (LCD drive voltage: 3.0V, or 4.5V)
Single system clock
Oscillation frequency up to 4 MHz , Crystal or RC oscillator is selected by mask code option ,
High-frequency (400 KHz to 4 MHz) or low-frequency (32.768 KHz) oscillation is delected by
mask
code option
Memory
2048
×
16 bit program ROM (including 2K
×
4 bit look-up table)
128
×
4 bit data RAM (including 16 working registers)
24
×
4 LCD data RAM
21 input/output pins
Ports for input only: 2 ports/8 pins
Input/output ports: 2 ports/8 pins
Port for output only: 1 port /4 pins (high sink current to drive LEDs)
MFP output pin: 1 pin (MFP)
Do not be floating when it is as input or output open-drain (NMOS type).
Power-down mode
Hold function: no operation (except for oscillator)
Stop function: no operation (including main clock)
Five types of interrupts
Three internal interrupts (Divider 0, Timer 0, Timer 1)
Two external interrupt (Port RC and
INT
pin)
相關PDF資料 |
PDF描述 |
|---|---|
| W541C261 | 4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD |
| W541E261 | 4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD |
| W541C480 | 4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E | 4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E201 | 4 BIT FLASH EPROM MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W541C261 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD |
| W541C480 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E200 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT FLASH EPROM MICROCONTROLLER |
| W541E201 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT FLASH EPROM MICROCONTROLLER |
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