Product Summary

The 74HCT688D 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 74HCT688D is a 8-bit magnitude comparator. It performs comparison of two 8-bit binary or BCD words.

Parametrics

74HCT688D characteristics: (1)tPHL/ tPLH propagation delay Pn, Qn to P = Q: Tamb=+25℃: typ=20ns, max=34ns; Tamb=-40 to +85℃: max=43ns; Tamb=-40 to +125℃: max=51ns; (2)tPHL/ tPLH propagation delay E to P = Q: Tamb=+25℃: typ=18ns, max=24ns; Tamb=-40 to +85℃: max=30ns; Tamb=-40 to +125℃: max=36ns; (3)tTHL/ tTLH output transition time: Tamb=+25℃: typ=7ns, max=15ns; Tamb=-40 to +85℃: max=19ns; Tamb=-40 to +125℃: max=22ns.

Features

74HCT688D 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
74HCT688D
74HCT688D
NXP Semiconductors
Comparator ICs COMPARATOR 8BIT MAG MAGNTD
Data Sheet
Negotiable 
74HCT688D,652
74HCT688D,652
NXP Semiconductors
Comparator ICs COMPARATOR 8BIT MAG
Data Sheet
0-1: $0.16
1-25: $0.15
25-100: $0.14
100-250: $0.14
74HCT688D,653
74HCT688D,653
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMPARATOR
Data Sheet
0-1: $0.27
1-25: $0.20
25-100: $0.15
100-250: $0.13
74HCT688DB,112
74HCT688DB,112
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE
Data Sheet
0-1: $0.67
1-25: $0.53
25-100: $0.46
100-250: $0.41
74HCT688DB,118
74HCT688DB,118
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE
Data Sheet
0-1: $0.59
1-25: $0.53
25-100: $0.46
100-250: $0.41
74HCT688DB
74HCT688DB
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMPARATOR
Data Sheet
Negotiable 
74HCT688DB-T
74HCT688DB-T
NXP Semiconductors
Comparator ICs 8-BIT MAGNITUDE COMPARATOR
Data Sheet
Negotiable