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參數(shù)資料
| 型號(hào)： | W741E200 |
| 英文描述： | 4-Bit Microcontroller |
| 中文描述： | 4位微控制器 |
| 文件頁(yè)數(shù)： | 2/84頁(yè) |
| 文件大?。?/td> | 344K |
| 代理商： | W741E200 |
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Preliminary W741E20X
- 2 -
GENERAL DESCRIPTION
The W741E20X is a high-performance 4-bit microcontroller (
μ
C) that provides an flash EEPROM for
the program memory. The device contains a 4-bit ALU, two 8-bit timers, a divider, a serial port, and five
4-bit I/O ports (including 3 output port for LED driving). There are also seven interrupt sources and 8-
level subroutine nesting for interrupt applications. The W741E20X has two power reduction modes,
hold mode and stop mode, which help to minimize power dissipation.
The W741E20X is suitable for end product manufacturer engineering testing and earlier samples
before mass production.
FEATURES
Operating voltage: 2.4V
5.5V
Crystal or RC oscillation circuit can be selected by the code option
Crystal/Ceramic oscillator: up to 4 MHz
RC oscillator: up to 4 MHz
Both in crystal or RC oscillator operation mode, high-frequency (400 KHz to 4 MHz) or low-frequency
(32.768 KHz) oscillation must be determined by the code option
Memory
2048
×
16 bit program flash EEPROM (including 2K
×
4 bit look-up table)
128
×
4 bit data RAM (including 16 working registers)
21 input/output pins
Input/output ports: 4 ports/16 pins
Serial input/output port: 1 port /4 pins (high sink current for LED driving)
MFP output pin: 1 pin (MFP)
Power-down mode
Hold function: no operation (except for oscillator)
Stop function: no operation (including oscillator)
Seven types of interrupts
Five internal interrupts (Divider 0, Timer 0, Timer 1, and Serial I/O)
Two external interrupts (Port RC and INT pin)
MFP output pin
Output is software selectable as modulating or nonmodulating frequency
Works as frequency output specified by Timer 1
Built-in 14-bit clock frequency divider circuit
Two built-in 8-bit programmable countdown timers
Timer 0: One of two internal clock frequencies (F
OSC
/4 or F
OSC
/1024) can be selected
Timer 1: Offers auto-reload function and one of two internal clock frequencies (F
OSC
or F
OSC
/64)
can be selected or falling edge of pin RC.0 can be selected (output through MFP pin)
Built-in 18/14-bit watchdog timer selectable for system reset
Powerful instruction set: 118 instructions
8-level subroutine (include interrupt) nesting
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| W741E201 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER |
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| W741E204 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER |
| W741E205 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER |
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