HD74HCT688 - 8-bit Magnitude Comparator

Product Overview

Hitachi Semiconductor

Part number	HD74HCT688
Manufacturer	Hitachi Semiconductor
File Size	55.72 KB
Description	8-bit Magnitude Comparator
Datasheet	HD74HCT688 Datasheet
Additional preview pages of the HD74HCT688 datasheet.

The HD74HCT688 compares bit for bit two 8-bit words and indicate 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.

LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility High Speed Operation: tpd (Data to P=Q) = 18 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 4.5 to 5.5 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs Data P, Q P=Q P>Q P.

HD74HCT1G00 - 2-input NAND Gate (Renesas Technology)
HD74HCT1G08 - 2-input AND Gate (Renesas Technology)
HD74HCT1G32 - High Speed CMOS two input OR gate Using Silicon Gate CMOS Process (Renesas Technology)
HD74HCT1G66 - Analog Switch (Renesas Technology)
HD74HCT238 - 3-to-8-line Decoder/Demultiplexer (Renesas)
HD74HC00 - Quad. 2-input NAND Gates (Renesas)
HD74HC01 - Quad. 2-input NAND Gates (Renesas)
HD74HC02 - Quad. 2-input NOR Gates (Renesas)
HD74HC04 - Hex Inverters (Renesas)
HD74HC05 - Hex Inverters (Renesas)

Other Datasheets by Hitachi Semiconductor

Published: Mar 23, 2005 |