Product Summary

The 74HC688 is a high-speed Si-gate CMOS device and is pin compatible with low power Schottky TTL(LSTTL). It is specified in compliance with JEDEC standard no. 7A. The 74HC688 is a 8-bit magnitude comparator. It performs comparison of two 8-bit binary or BCD words.

Parametrics

74HC688 characteristics: (1)tPHL/ tPLH propagation delay Pn, Qn to P = Q: Tamb=+25℃: typ=55ns, max=170ns; Tamb=-40 to +85℃: max=215ns; Tamb=-40 to +125℃, max=255ns; VCC=2.0V; (2)tPHL/ tPLH propagation delay E to P = Q: Tamb=+25℃: typ=28ns, max=120ns; Tamb=-40 to +85℃: max=43ns; Tamb=-40 to +125℃, max=51ns; VCC=2.0V; (3)tTHL/ tTLH output transition time: Tamb=+25℃: typ=19ns, max=75ns; Tamb=-40 to +85℃: max=95ns; Tamb=-40 to +125℃, max=110ns; VCC=2.0V.

Features

74HC688 features: (1)Compare two 8-bit words; (2)Output capability: standard; (3)ICC category: MSI.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
74HC688D,652
74HC688D,652
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMP
Data Sheet
0-1: $0.35
1-25: $0.30
25-100: $0.26
100-250: $0.23
74HC688D,653
74HC688D,653
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMPARATOR
Data Sheet
0-1: $0.34
1-25: $0.25
25-100: $0.21
100-250: $0.20
74HC688DB
74HC688DB
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMPARATOR
Data Sheet
Negotiable 
74HC688DB,118
74HC688DB,118
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE
Data Sheet
0-1: $0.51
1-25: $0.46
25-100: $0.40
100-250: $0.35
74HC688DB-T
74HC688DB-T
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMPARATOR
Data Sheet
Negotiable 
74HC688N,652
74HC688N,652
NXP Semiconductors
Comparator ICs COMPARATOR 8BIT MAG MAGNITD
Data Sheet
0-1: $0.48
1-25: $0.43
25-100: $0.37
100-250: $0.31
74HC688PW,112
74HC688PW,112
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE
Data Sheet
0-1: $0.17
1-25: $0.16
25-100: $0.13
100-250: $0.12
74HC688PW,118
74HC688PW,118
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE
Data Sheet
0-1: $0.36
1-25: $0.31
25-100: $0.27
100-250: $0.23