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參數資料
| 型號： | HT82K628A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Windows 2000 Keyboard Encoder(Windows 2000操作系統鍵盤編碼器) |
| 中文描述： | Windows 2000的鍵盤編碼器（Windows 2000的操作系統鍵盤編碼器） |
| 文件頁數： | 8/25頁 |
| 文件大?。?/td> | 174K |
| 代理商： | HT82K628A |
HT82K628A
8
December 8, 2000
Data input
The system overrides the clock line for at
least 60ms.
The keyboard checks the clock line state at
intervals of 10ms
If a system request-to-send is detected, the
keyboard counts 11 data bits.
Data will be valid before the rising edge and
beyond the falling edge
After the 10th bit, the keyboard checks for
an active level on the "data" line. If the line
is active it is forced to be inactive, and
counts one more bit.
Note: This action signals the system that
the keyboard has received its data.
Upon reception of this signal, the
system returns to the ready state, in
which it can accept keyboard outputs
or goes to the inhibit state until it is
ready.
If the keyboard "data" line is found to be at an
inactive level following the 10th bit, a frame
error has occurred, and the keyboard contin-
ues to count until the "data" line becomes ac-
tive. The keyboard then makes the "data" line
inactive and sends a Resend.
Data stream
Mode 1,2,3
B1:
B2:
b3:
b4:
b5:
B6
b7:
b8:
b9:
b10:
b11:
start bit
always 0
data bit 0
data bit 1
data bit 2
data bit 3
data bit 4
data bit 5
data bit 6
data bit 7
parity bit
(odd par)
stop bit
always 1
Note: The parity bit is either 1 or 0, and the 8
data bits, plus the parity bit, always
have an odd number of 1 s.
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| HT82K628 | Windows 2000 Keyboard Encoder |
| HT82K629A | Windows 2000 USB+PS/2 Keyboard Encoder |
| HT82K68A-L | Multimedia Keyboard Encoder 8-Bit MCU |
| HT82K68E-L | Multimedia Keyboard Encoder 8-Bit MCU |
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相關代理商/技術參數 |
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|---|---|
| HT82K628A(40DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| HT82K628A-40DIPLF | 制造商:Holtek Semiconductor Inc 功能描述:IC WIN 2000 KB PS2 CONT DIP40 制造商:Holtek Semiconductor Inc 功能描述:IC, WIN 2000 KB PS2 CONT, DIP40 制造商:Holtek Semiconductor Inc 功能描述:IC, WIN 2000 KB PS2 CONT, DIP40, IC Function:Keyboard Encoder, Brief Features:Su 制造商:Holtek Semiconductor Inc 功能描述:IC, PS/2 KEYBOARD ENCODER, DIP-40, IC Function:Keyboard Encoder, Brief Features:Supports Japanese, Korean, Brazilian and European, RC Oscillator, Phantom Key Detection, Supply Voltage Min:3V, Supply Voltage Max:5.25V, No. of Pins:40 , RoHS Compliant: Yes |
| HT82K629A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Windows 2000 USB+PS/2 Keyboard Encoder |
| HT82K629A-40DIPLF | 制造商:Holtek Semiconductor Inc 功能描述:IC USB/PS2 CONT WIN 2000 KEYBOARD 制造商:HOLTEK 功能描述:IC, USB/PS2 CONT, WIN 2000 KEYBOARD 制造商:Holtek Semiconductor Inc 功能描述:USB/PS2 INTERFACE, WINDOWS 2000, DIP-40; USB Type:Keyboard Encoder; USB Version:1.1; Supply Voltage Min:4.4V; Supply Voltage Max:5.5V; Digital IC Case Style:DIP; No. of Pins:40; Operating Temperature Min:0C ;RoHS Compliant: Yes |
| HT82K68 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Multimedia Keyboard Encoder OTP |
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