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HD74HC688

Renesas
Part Number HD74HC688
Manufacturer Renesas
Description 8-bit Magnitude Comparator
Published Dec 4, 2017
Detailed Description HD74HC688 8-bit Magnitude Comparator REJ03D0643–0200 (Previous ADE-205-529) Rev.2.00 Mar 30, 2006 Description The HD7...
Datasheet PDF File HD74HC688 PDF File

HD74HC688
HD74HC688

Overview
HD74HC688 8-bit Magnitude Comparator REJ03D0643–0200 (Previous ADE-205-529) Rev.
2.
00 Mar 30, 2006 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: tpd (P or Q to Output) = 17 ns typ (CL = 50 pF) • High Output Current: Fanout of 10 LSTTL Loads • Wide Operating Voltage: VCC = 2 to 6 V • Low Input Current: 1 µA max • Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) • Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation HD74HC688P DILP-20 pin (JEDEC) PRDP0020AC-B (DP-20NEV) P HD74H...


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