W741C20X中文资料PDF规格书
W741C20X规格书详情
GENERAL DESCRIPTION
The W741C20X is a high-performance 4-bit microcontroller (mC) that operates on very low current. 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 ports for LED driving). There are also seven interrupt sources and 8-level subroutine nesting for interrupt applications. The W741C20X has two power reduction modes, hold mode and stop mode, which help to minimize power dissipation.
FEATURES
· Operating voltage: 2.2V to 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 x 16 bit program ROM (including 2K x 4 bit look-up table)
- 128 x 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 (FOSC/4 or FOSC/1024) can be selected
- Timer 1: Offers auto-reload function, and one of two internal clock frequencies (FOSC or FOSC/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
· One serial transmission/receiver port specified by software
· Up to 1 mS instruction cycle (with 4 MHz operating frequency)
· Packaged in 18-pin, 20-pin, 28-pin PDIP and 20-pin, 28-pin SOP
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
WINBOND |
21+ |
DIP8 |
4550 |
全新原装现货 |
询价 | ||
Winbond |
17+ |
DIP8 |
6200 |
100%原装正品现货 |
询价 | ||
WINBOND/华邦 |
22+ |
DIE |
50000 |
只做原装假一罚十,欢迎咨询 |
询价 | ||
WINBOND |
18+ |
DIP8 |
32452 |
全新原装现货,可出样品,可开增值税发票 |
询价 | ||
Winbond |
23+ |
DIP8 |
5000 |
原装正品,假一罚十 |
询价 | ||
WINBOND |
2023+ |
DIP18 |
700000 |
柒号芯城跟原厂的距离只有0.07公分 |
询价 | ||
WINBOND/华邦 |
23+ |
DIP8 |
25500 |
授权代理直销,原厂原装现货,假一罚十,特价销售 |
询价 | ||
WINBOND/华邦 |
22+ |
DIP8 |
9600 |
原装现货,优势供应,支持实单! |
询价 | ||
WINBOND/华邦 |
2021+ |
DIP8 |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 | ||
WINBOND/华邦 |
22+ |
DIP8 |
18000 |
只做全新原装,支持BOM配单,假一罚十 |
询价 |