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參數(shù)資料
| 型號： | HT82K628 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | Windows 2000 Keyboard Encoder |
| 中文描述： | Windows 2000的鍵盤編碼器 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大小： | 145K |
| 代理商： | HT82K628 |
Pin Description
Pin No.
Pin Name
I/O
Description
10~7, 2~1,
40~39,29~22,
14~11
R0~R19
O
Keyboard matrix scanning output pins
6~3, 38~35
C0~C7
I
Keyboard matrix scanning input pins
15
VSS
Negative power supply, ground
16
SCROLL
O
Scroll Lock indicator
17
NUM
O
Num Lock indicator
18
DATA
I/O
Bidirectional data transmission line
19
CLOCK
I/O
Synchronous clock signal. Used to clock the transmission data.
20
Fn Select
I
Mini-keyboard select, enables the function if connected to VSS.
21
Macro Key Select
I
Macro Key select, disables the function if connected to VSS.
30
CAPS
O
Caps Lock indicator
31
RESET
I
Chip reset input. Active low. Built-in power-on reset circuit to reset the en-
tire chip. Chip can also be externally reset via RESET pin.
32
VDD
5.0V positive power supply
33
OSC1
I
System clock input; 58.3k
resistor connected for RC OSC
34
NC
No connection
Absolute Maximum Ratings
Supply Voltage ..........................V
SS
0.3V to V
SS
+5.5V
Storage Temperature ........................... 50 C to 125 C
Input Voltage .............................V
SS
0
.
3V to V
DD
+0.3V
Operating Temperature .......................... 25 C to 70 C
Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
Electrical Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ. Max. Unit
V
DD
Conditions
V
DD
Operating Voltage
3
5
5.25
V
I
DD
Operating Current (RC OSC)
5V
No load, f
SYS
= 4MHz
2.5
5
mA
V
IL
Input Low Voltage
5V
0
1.5
V
V
IH
Input High Voltage
5V
3.5
5
V
I
OL
SinkCurrent(C0~C7,R0~R19,DATA,CLOCK)
5V
V
OL
= 0.5V
16
25
mA
I
OH1
Source Current (C0~C7, R0~R19)
5V
V
OH
= 4.5V
8
16
mA
I
OH2
Source Current (Scroll, Num, Caps)
5V
V
OH
= 4.5V
2.5
4
mA
I
LED
LED Sink Current (Scroll, Num, Caps)
5V
V
OL
=3.4V
10
18
24
mA
R
ph
InternalPull-highResistance(C0~C7,R0~R19)
5V
5
12
20
k
R
ph1
Internal Pull-high Resistance (DATA, CLOCK)
5V
2
4.7
8
k
R
ph2
Internal Pull-high Resistance (RESET)
5V
25
50
75
k
f
SYS
System Clock (RC OSC)
5V
4
MHz
HT82K628A
Rev. 1.60
2
April 16, 2004
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT82K628A | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Windows 2000 Keyboard Encoder |
| 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 |
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