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參數(shù)資料
| 型號(hào)： | HD74HC688 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | 8-bit Magnitude Comparator |
| 中文描述： | 8位數(shù)值比較 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大小： | 60K |
| 代理商： | HD74HC688 |
HD74HC688
8-bit Magnitude Comparator
Description
The HD74HC688 compares bit for bit two 8-bit words and indicates whether or not they are equal. The
P=Q
output indicates equality when it is low.
A single active low enable is provided to facilitate cascading of several packages and enable comparison of
words greater than 8-bits.
This device is useful in memory block decoding applications, where memory block enable signals must be
generated from computer address information.
Features
High Speed Operation: t
pd
(P or Q to Output) = 17 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
Input
Data P, Q
Enable
G
P=Q
P=Q
L
L
P>Q
L
H
P<Q
L
H
X
H
H
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD74HC688FP(E) | 制造商:Renesas Electronics Corporation 功能描述: |
| HD74HC73P | 制造商:Renesas Electronics 功能描述:74HC Dual J-K Flip-Flop with Preset and Clear Bulk |
| HD74HC74FP-E | 制造商:Renesas Electronics Corporation 功能描述:Flip Flop D-Type Pos-Edge 2-Element 14-Pin SOP 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-14 |
| HD74HC74FPEL-E | 制造商:Renesas Electronics Corporation 功能描述:Logic, 74HC series, SOP-14 |
| HD74HC74P | 制造商:Panasonic Industrial Company 功能描述:IC 制造商:Toshiba America Electronic Components 功能描述:HC/UH SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDIP14 |
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