The CD74HCT688E is an 8-bit magnitude comparator designed for applications requiring the comparison of two 8-bit binary words. It features direct LSTTL input logic compatibility and operates within a voltage range of 4.5 V to 5.5 V. The device provides a low output signal when the compared words are equal, which can be used to enable subsequent devices in cascaded configurations. This comparator is characterized by a wide operating temperature range of -55¬8C to 125¬8C and offers significant power reduction compared to LSTTL logic ICs. It supports a fanout of 10 LSTTL loads for standard outputs and 15 LSTTL loads for bus driver outputs. The CD74HCT688E is available in a 20-pin PDIP package, making it suitable for various circuit designs where space and thermal performance are considerations.
8-Bit Identity/Magnitude Comparators (P=Q) with Enable 20-PDIP -55 to 125
Texas Instruments CD74HCT688E
Texas Instruments CD74HCT688E
Texas Instruments CD74HCT688E
Magnitude Comparator Bit Active Low Output A=B 20-PDIP
A=B 34ns@4.5V,50pF 4.5V~5.5V 8 PDIP-20 Digital Comparators ROHS
Logic Comparators 8-Bit Magnitude
IC COMPARATOR IDENTITY 8B 20DIP
| Texas Instruments | RS Components, Ltd. | RS Components, Ltd. | DigiKey | LCSC Electronics Technology (HK) Limited | VAST STOCK CO., LIMITED | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|
| Product Category | Logic Comparators | Logic Comparators | Logic Comparators | Logic Comparators | Logic Comparators | Logic Comparators | Logic Comparators |
| Product Number | CD74HCT688E | 1450441 | 6630650P | 296-2131-5-ND | CD74HCT688E | CD74HCT688E | CD74HCT688E |
| Product Name | CD74HCT688 8-Bit Identity/Magnitude Comparators (P=Q) with Enable | Logic Comparators | Logic Comparators | Comparators | Logic ICs >> Digital Comparators | Logic Comparators | Integrated Circuits (ICs) - Logic - Comparators |
| Type | Identity; Magnitude | Identity | |||||
| Supply Voltage | Other; 4.5 | 4.5V ~ 5.5V | Other; 4.5V~5.5V | Other | |||
| Package Type | Other; CMOS | DIP; Other; Pdip | DIP; PDIP; Other; PDIP | DIP | PDIP | ||
| Logic Family | HCT | Hct | HCMOS; HCT | ||||
| Number of Bits | 8 | 8 | 8 |
