CD74HC688

高速 CMOS 逻辑 8 位幅度比较器

The ’HC688 and ’HCT688 are 8-bit magnitude comparators designed for use in computer and logic applications that require the comparison of two 8-bit binary words. When the compared words are equal the output Y is low and can be used as the enabling input for the next device in a cascaded application.

.

Cascadable

.

Fanout Over Temperature Range

.

Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads

.

Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

.

Wide Operating Temperature Range . . . -55°C to 125°C

.

Balanced Propagation Delay and Transition Times

.

Significant Power Reduction Compared to LSTTL Logic ICs

.

HC Types

.

2V to 6V Operation

.

High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V

.

HCT Types

.

4.5V to 5.5V Operation

.

Direct LSTTL Input Logic Compatibility, VIL = 0.8V Max, VIH = 2V Min

.

CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor