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參數資料
| 型號： | HD74HC393 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Quad 2-Line To 1-Line Data Selectors/Multiplexers With 3-State 16-CDIP -55 to 125 |
| 中文描述： | 雙4位二進制計數器 |
| 文件頁數： | 1/9頁 |
| 文件大?。?/td> | 47K |
| 代理商： | HD74HC393 |
HD74HC393
Dual 4-bit Binary Counters
Description
The HD74HC393 contain two 4-bit ripple carry binary counters, which can be cascaded to create a single
divide-by-256 counter.
The HD74HC393 is incremented on the high to low transition (negative edge) of the clock input, and each
has an independent clear input. when clear is set high all four bits of each counter are set to a low level.
This enables count trucation and allows the implementation of divide-by-N counter configurations.
Features
High Speed Operation: t
pd
(A to Q
A
) = 16 ns typ (C
L
= 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 μA max
Low Quiescent Supply Current: I
CC
(static) = 4 μA max (Ta = 25°C)
Function Table
Clock
Clear
Outputs
X
H
L
H
L
No change
L
L
No change
L
No change
L
Advance to next state
相關PDF資料 |
PDF描述 |
|---|---|
| HD74HC4017 | Decade Counter/Divider |
| HD74HC4020 | 14-stage Binary Counter |
| HD74HC4022 | Octal Counters/Dividers |
| HD74HC4024 | 7-stage Binary Counter |
| HD74HC4040 | 12-stage Binary Counter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HD74HC393FP-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC393P | 制造商:Renesas Electronics Corporation 功能描述:Counter/Divider Dual 4-Bit Binary UP 14-Pin PDIP |
| HD74HC393P-E | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC4017P | 制造商:Renesas Electronics 功能描述:74HC Decade Counter / Divider Bulk |
| HD74HC4020FP | 制造商:Renesas Electronics 功能描述:74HC 14-Stage Binary Counter 制造商:Renesas Electronics 功能描述:74HC 14-Stage Binary Counter Bulk |
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