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參數資料
| 型號： | W541L260 |
| 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, 1 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數： | 2/11頁 |
| 文件大小： | 129K |
| 代理商： | W541L260 |
W541L260
- 2 -
1. GENERAL DESCRIPTION
W541L260 is fully compatible with W741L260 in the terms of pin assignment and IC functon except
main oscillator. It is a high-performance 4-bit microcontroller (
μ
C) with an LCD driver. The device
contains a 4-bit ALU, two 8-bit timers, two dividers, a 32
×
4 LCD driver, and five 4-bit I/O ports
(including 1 output port to drive the LEDs). There are also five interrupt sources and 8-level subroutine
nesting for interrupt applications. The W541L260 has one power reduction mode to help minimize
power dissipation.
The W541L260 has two oscillator circuits and can work in dual-clock or single-clock operation mode.
It is suitable for remote controllers, watches and clocks, speech synthesis LSI controllers, and other
products.
2. FEATURES
Operating voltage: 1.2V
1.8
V (LCD drive voltage: 3.0V, or 4.5V)
Single or Dual Clock Mode
Single (main oscillator only) or dual clock (both main and sub-oscilator) by mask option .
Sub-oscillator is only 32.768 KHz crystal for dual clock mode.
Main oscillator is crystal or RC oscillation by mask code option .
Main clock
:
High-frequency clock (400 KHz to 1 MHz) or low-frequency clock (32.768 KHz) is
selected 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)
32
×
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)
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