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參數(shù)資料
| 型號： | W81C280 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | USB Keyboard/ Device Controller(具有通用串行總線接口的鍵盤／設備控制器) |
| 中文描述： | 8-BIT, MROM, MICROCONTROLLER, PDIP40 |
| 封裝： | DIP-40 |
| 文件頁數(shù)： | 5/27頁 |
| 文件大小： | 328K |
| 代理商： | W81C280 |
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W81C280
USB Keyboard/ Device Controller
Publication Release Date: July 1997
- 1 -
Revision 0.50
1. GENERAL DESCRIPTION
W81C280 is a single-chip microcontroller with Universal Serial Bus (USB) interface for keyboard
application, it includes the core of Winbond
s
8-bit microprocessor W78C52. It implements a
standard PC keyboard and enables connection to host system through low- speed (1.5Mhz) or high
speed(12Mhz) . It complies with USB Specification Revision 1.0 and HID Class Definition Revision
1.0.
W81C280 supports an 18 X 8 keyboard scan matrix wihich allows suspend wakeup, and also provides
a port for PS/2 mouse. It consists of an 8051 compatible CPU core, a 6K-byte ROM, a 256-byte
SRAM, and three 16-bit programmable timers.
W81C280 supports one device address and five endpoints, one for Control transfer and four for
Interrupt transfer. Through modification of firmware of W78C52, it can be used for multi-function
device design, such as USB-IR receiver and any High-Speed(12Mhz)/Slow-Speed(1.5Mhz) USB
peripheral device controller.
2. FEATURES
l
Complying with USB spec. Rev.1.0 and HID Class Rev. 1.0
l
Supporting one device address and five endpoints (one Control transfer, four Interrupt transfer)
l
Implementing USB keyboard with PS/2 mouse connection
Supporting 8-bit sense (row) input with wakeup interrupt on falling eage, internal pull-ups
l
Supporting 18-bit drive (column) output, open drain with pull-ups
l
8-bit 8051 compatible CPU core
l
6K-byte ROM
l
256-byte SRAM
l
3 direct drive LED outputs with internal series resisters, Isink= 20 mA
l
Supporting warm reset
l
Supporting external serial EEPROM access
l
40/42-pin DIP
l
5V CMOS Device
相關PDF資料 |
PDF描述 |
|---|---|
| W81E381 | FULL SPEED USB INTEGRATED MICROCONTROLLER |
| W81E381AD | FULL SPEED USB INTEGRATED MICROCONTROLLER |
| W81E381D | FULL SPEED USB INTEGRATED MICROCONTROLLER |
| W82C610 | Monitor Software OSD(On Screen Display) IC(監(jiān)控軟件屏幕顯示控制器) |
| W82MV-NSBC | 2Mx32 SRAM 3.3V MULTI-CHIP PACKAGE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| W81E381 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:FULL SPEED USB INTEGRATED MICROCONTROLLER |
| W81E381AD | 制造商:WINBOND 制造商全稱:Winbond 功能描述:FULL SPEED USB INTEGRATED MICROCONTROLLER |
| W81E381D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:FULL SPEED USB INTEGRATED MICROCONTROLLER |
| W-82 | 制造商:Hozan Tool Industrial Co Ltd 功能描述: 制造商:Curtis Industries 功能描述:DIN RAIL SLOTTED |
| W820 | 制造商:LUMINIS 制造商全稱:LUMINIS 功能描述:Post top mount |
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