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參數(shù)資料
| 型號： | W741L260 |
| 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, MROM, 1 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁數(shù)： | 2/90頁 |
| 文件大小： | 480K |
| 代理商： | W741L260 |
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W741L260
- 2 -
GENERAL DESCRIPTION
The W741L260 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 one high sink current output port). There are also five interrupt sources and 8-level
subroutine nesting for interrupt applications. The W741L260 has one power reduction mode to help
minimize power dissipation.
The W741L260 has two oscillator circuits and can work in dual-clock or single-clock operation mode.
It is suitable for handheld games, watches, clocks, speech synthesis LSI controllers, and other
products.
FEATURES
Operating voltage: 1.2V to 1.8V (LCD drive voltage: 3.0V, or 4.5V)
Operating frequency up to 1 MHz
Crystal/RC oscillation circuit selectable by code option for system clock
32.768 KHz crystal oscillation circuit for sub-oscillator
Only low-frequency clock (32.768 KHz) for crystal mode
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)
MFP output pin: 1 pin (MFP)
Power-down mode
Hold function: no operation (except for oscillator)
Five types of interrupts
Four internal interrupts (Divider 0, Divider 1, Timer 0, Timer 1)
One external interrupt (Port RC)
LCD driver output
32 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
LCD driver output pins can be used as DC output ports; selectable by code option
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