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74HC/HCT688
General description
The 74HC/HCT688 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT688 are 8-bit magnitude comparators. They perform comparison of two 8-bit binary or BCD words.
The output provides P = Q.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC688D | 74HC688D | 9337 139 00652 | Volume production | SOT163-1
(SO20) | Bulk Pack, CECC | Standard Marking | 74HC688D
| week 30, 2004 |
| 74HC688D | 74HC688D-T | 9337 139 00653 | Volume production | SOT163-1
(SO20) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HC688D
| week 30, 2004 |
| 74HC688DB | 74HC688DB | 9351 887 60112 | Volume production | SOT339-1
(SSOP20) | Tube | Standard Marking | 74HC688DB
| week 17, 2005 |
| 74HC688DB | 74HC688DB-T | 9351 887 60118 | Volume production | SOT339-1
(SSOP20) | Reel Pack, SMD, 13" | Standard Marking | 74HC688DB
| week 17, 2005 |
| 74HC688N | 74HC688N | 9336 707 60652 | Volume production | SOT146-1
(DIP20) | Bulk Pack, CECC | Standard Marking | 74HC688N
| Always Pb-free |
| 74HC688PW | 74HC688PW | 9351 891 70112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | 74HC688PW
| week 5, 2005 |
| 74HC688PW | 74HC688PW-T | 9351 891 70118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking | 74HC688PW
| week 5, 2005 |
| 74HCT688D | 74HCT688D | 9337 139 10652 | Volume production | SOT163-1
(SO20) | Bulk Pack, CECC | Standard Marking | 74HCT688D
| week 30, 2004 |
| 74HCT688D | 74HCT688D-T | 9337 139 10653 | Volume production | SOT163-1
(SO20) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HCT688D
| week 30, 2004 |
| 74HCT688DB | 74HCT688DB | 9351 894 30112 | Volume production | SOT339-1
(SSOP20) | Tube | Standard Marking | 74HCT688DB
| week 13, 2005 |
| 74HCT688DB | 74HCT688DB-T | 9351 894 30118 | Volume production | SOT339-1
(SSOP20) | Reel Pack, SMD, 13" | Standard Marking | 74HCT688DB
| week 13, 2005 |
| 74HCT688N | 74HCT688N | 9336 710 10652 | Volume production | SOT146-1
(DIP20) | Bulk Pack, CECC | Standard Marking | 74HCT688N
| Always Pb-free |
| 74HCT688PW | 74HCT688PW | 9351 891 60112 | Volume production | SOT360-1
(TSSOP20) | Tube | Standard Marking | 74HCT688PW
| week 7, 2005 |
| 74HCT688PW | 74HCT688PW-T | 9351 891 60118 | Volume production | SOT360-1
(TSSOP20) | Reel Pack, SMD, 13" | Standard Marking | 74HCT688PW
| week 7, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74HC688D | 9337 139 00652 | 0.3400 | NA | ARROW ELECTRONICS | 465 | 9/5/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 1,726 | 9/5/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 1,804 | 9/6/2008 | Buy online | ||||
| EU | FARNELL | 505 | 9/5/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 2,318 | 9/5/2008 | Buy online | ||||
| NA | NEWARK | 505 | 9/5/2008 | Buy online | ||||
| 74HC688D | 9337 139 00653 | 0.3400 | ASIA | WPI | 2,000 | 09/06/2008 | Buy online | Order samples |
| NA | MOUSER ELECTRONICS | 1,995 | 9/5/2008 | Buy online | ||||
| 74HC688DB | 9351 887 60112 | 0.3400 | NA | DIGI-KEY CORPORATION | 1,490 | 9/6/2008 | Buy online | not available |
| 74HC688DB | 9351 887 60118 | 0.3400 | Order samples | |||||
| 74HC688N | 9336 707 60652 | 0.3700 | NA | AVNET ELECTRONICS MARKETING | 1,831 | 9/5/2008 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 1,400 | 9/6/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 716 | 9/5/2008 | Buy online | ||||
| 74HC688PW | 9351 891 70112 | 0.3400 | not available | |||||
| 74HC688PW | 9351 891 70118 | 0.3400 | Order samples | |||||
| 74HCT688D | 9337 139 10652 | 0.3400 | NA | ARROW ELECTRONICS | 392 | 9/5/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 2,382 | 9/5/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 2,015 | 9/6/2008 | Buy online | ||||
| EU | FARNELL | 1,201 | 9/5/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 1,606 | 9/5/2008 | Buy online | ||||
| NA | NEWARK | 1,201 | 9/5/2008 | Buy online | ||||
| 74HCT688D | 9337 139 10653 | 0.3400 | NA | ARROW ELECTRONICS | 2,000 | 9/5/2008 | Buy online | Order samples |
| NA | MOUSER ELECTRONICS | 1,983 | 9/5/2008 | Buy online | ||||
| 74HCT688DB | 9351 894 30112 | 0.3900 | NA | DIGI-KEY CORPORATION | 1,018 | 9/6/2008 | Buy online | not available |
| 74HCT688DB | 9351 894 30118 | 0.3900 | Order samples | |||||
| 74HCT688N | 9336 710 10652 | 0.3700 | NA | ARROW ELECTRONICS | 1,054 | 9/5/2008 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 1,164 | 9/5/2008 | Buy online | ||||
| NA | DIGI-KEY CORPORATION | 748 | 9/6/2008 | Buy online | ||||
| EU | FARNELL | 585 | 9/5/2008 | Buy online | ||||
| NA | FUTURE ELECTRONICS | 1,101 | 9/5/2008 | Buy online | ||||
| NA | MOUSER ELECTRONICS | 663 | 9/5/2008 | Buy online | ||||
| NA | NEWARK | 585 | 9/5/2008 | Buy online | ||||
| 74HCT688PW | 9351 891 60112 | 0.3400 | NA | AVNET ELECTRONICS MARKETING | 1,700 | 9/5/2008 | Buy online | not available |
| 74HCT688PW | 9351 891 60118 | 0.3400 | Order samples |
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74HC688D | SOT163-1
(SO20) | 8-Bit Magnitude Comparator | 16@5V | 2.0-6.0 V | 20 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC688DB | SOT339-1
(SSOP20) | 8-Bit Magnitude Comparator | 16@5V | 2.0-6.0 V | 20 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC688N | SOT146-1
(DIP20) | 8-Bit Magnitude Comparator | 16@5V | 2.0-6.0 V | 20 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC688PW | SOT360-1
(TSSOP20) | 8-Bit Magnitude Comparator | 16@5V | 2.0-6.0 V | 20 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HCT688D | SOT163-1
(SO20) | 8-Bit Magnitude Comparator; TTL Enabled | 17 | 4.5-5.5 V | 20 | Low Power | TTL | +/- 4 mA |
| 74HCT688DB | SOT339-1
(SSOP20) | 8-Bit Magnitude Comparator; TTL Enabled | 17 | 4.5-5.5 V | 20 | Low Power | TTL | +/- 4 mA |
| 74HCT688N | SOT146-1
(DIP20) | 8-Bit Magnitude Comparator; TTL Enabled | 17 | 4.5-5.5 V | 20 | Low Power | TTL | +/- 4 mA |
| 74HCT688PW | SOT360-1
(TSSOP20) | 8-Bit Magnitude Comparator; TTL Enabled | 17 | 4.5-5.5 V | 20 | Low Power | TTL | +/- 4 mA |
Similar products
74HC/HCT688 links to the similar products page containing an overview of products that are similar in function or related to the type number(s) as listed on this page. The similar products page includes products from the same catalog tree(s), relevant selection guides and products from the same functional category.
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