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74HC/HCT85
Datasheet
(Product Specification)
01-Dec-90, 9 pages, 67 kB
General description
The 74HC/HCT85 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/HCT85 are 4-bit magnitude comparators that can be expanded to almost any length. They perform comparison of two 4-bit binary, BCD or other monotonic codes and present the three possible magnitude results at the outputs (QA>B, QA=B and QA<B). The 4-bit inputs are weighted (A0 to A3 and B0 to B3), where A3 and B3 are the most significant bits.
The operation of the '85' is described in the function table, showing all possible logic conditions. The upper part of the table describes the normal operation under all conditions that will occur in a single device or in a series expansion scheme. In the upper part of the table the three outputs are mutually exclusive. In the lower part of the table, the outputs reflect the feed forward conditions that exist in the parallel expansion scheme.
For proper compare operation the expander inputs (IA>B, IA=B and IA<B) to the least significant position must be connected as follows: IA<B =IA>B = = LOW and IA=B = HIGH.
For words greater than 4-bits, units can be cascaded by connecting outputs QA<B, QA>B and QA=B to the corresponding inputs of the significant comparator.
Features
- Serial or parallel expansion without extra gating
- Magnitude comparison of any binary words
- Output capability: standard
- ICC category: MSI
Products/packages
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| 74HC85D | 74HC85D,652 | 9337 149 50652 | Volume production | SOT109 | Bulk Pack, CECC | Standard Marking | |
| 74HC85D | 74HC85D,653 | 9337 149 50653 | Volume production | SOT109 | Reel Pack, SMD, 13", CECC | Standard Marking | |
| 74HC85DB | 74HC85DB,112 | 9351 903 40112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HC85DB | 74HC85DB,118 | 9351 903 40118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HC85N | 74HC85N,652 | 9336 698 80652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | |
| 74HC85PW | 74HC85PW,112 | 9351 891 80112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | |
| 74HC85PW | 74HC85PW,118 | 9351 891 80118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT85D | 74HCT85D,652 | 9337 154 30652 | Volume production | SOT109 | Bulk Pack, CECC | Standard Marking | |
| 74HCT85D | 74HCT85D,653 | 9337 154 30653 | Volume production | SOT109 | Reel Pack, SMD, 13", CECC | Standard Marking | |
| 74HCT85DB | 74HCT85DB,112 | 9351 903 10112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HCT85DB | 74HCT85DB,118 | 9351 903 10118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT85N | 74HCT85N,652 | 9336 705 10652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking |
Quality/reliability/chemical content
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| 74HC85D | 74HC85D,652 | 74HC85D |
| week 30, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC85D | 74HC85D,653 | 74HC85D |
| week 30, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC85DB | 74HC85DB,112 | 74HC85DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC85DB | 74HC85DB,118 | 74HC85DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC85N | 74HC85N,652 | 74HC85N |
| Always Pb-free | 6,62 | 1,51E+08 | NA | |
| 74HC85PW | 74HC85PW,112 | 74HC85PW |
| week 10, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC85PW | 74HC85PW,118 | 74HC85PW |
| week 10, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT85D | 74HCT85D,652 | 74HCT85D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HCT85D | 74HCT85D,653 | 74HCT85D |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HCT85DB | 74HCT85DB,112 | 74HCT85DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT85DB | 74HCT85DB,118 | 74HCT85DB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT85N | 74HCT85N,652 | 74HCT85N |
| Always Pb-free | 6,62 | 1,51E+08 | NA |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC85D | 9337 149 50652 | 74HC85D,652 | 0.2600 | NA | FUTURE ELECTRONICS | 30 | 11/7/2009 | Buy online | not available | |
| 74HC85D | 9337 149 50653 | 74HC85D,653 | 0.2600 | NA | MOUSER ELECTRONICS | 787 | 11/7/2009 | Buy online | not available | |
| 74HC85DB | 9351 903 40112 | 74HC85DB,112 | 0.2900 | NA | DIGI-KEY CORPORATION | 1,957 | 11/7/2009 | Buy online | not available | |
| 74HC85DB | 9351 903 40118 | 74HC85DB,118 | 0.2900 | NA | MOUSER ELECTRONICS | 1,218 | 11/7/2009 | Buy online | not available | |
| 74HC85N | 9336 698 80652 | 74HC85N,652 | 0.2700 | NA | NEWARK | 375 | 11/6/2009 | Buy online | Order samples | |
| NA | ARROW ELECTRONICS | 2,042 | 11/6/2009 | Buy online | ||||||
| EU | FARNELL | 451 | 11/7/2009 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 2,636 | 11/7/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 793 | 11/7/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 3,559 | 11/7/2009 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 3,512 | 11/7/2009 | Buy online | ||||||
| 74HC85PW | 9351 891 80112 | 74HC85PW,112 | 0.2600 | not available | ||||||
| 74HC85PW | 9351 891 80118 | 74HC85PW,118 | 0.2600 | not available | ||||||
| 74HCT85D | 9337 154 30652 | 74HCT85D,652 | 0.2600 | NA | NEWARK | 297 | 11/6/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 1,395 | 11/6/2009 | Buy online | ||||||
| EU | FARNELL | 325 | 11/7/2009 | Buy online | ||||||
| 74HCT85D | 9337 154 30653 | 74HCT85D,653 | 0.2600 | NA | MOUSER ELECTRONICS | 100 | 11/7/2009 | Buy online | not available | |
| 74HCT85DB | 9351 903 10112 | 74HCT85DB,112 | 0.2700 | NA | DIGI-KEY CORPORATION | 3,476 | 11/7/2009 | Buy online | not available | |
| 74HCT85DB | 9351 903 10118 | 74HCT85DB,118 | 0.2700 | not available | ||||||
| 74HCT85N | 9336 705 10652 | 74HCT85N,652 | 0.3400 | NA | NEWARK | 3,546 | 11/6/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 1,463 | 11/6/2009 | Buy online | ||||||
| EU | FARNELL | 3,626 | 11/7/2009 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 11,042 | 11/7/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,855 | 11/7/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 2,000 | 11/7/2009 | Buy online | ||||||
| NA | AVNET ELECTRONICS MARKETING | 285 | 11/7/2009 | Buy online |
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74HC85D | SOT109
| 4-Bit Magnitude Comparator | 18@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC85DB | SOT338-1
(SSOP16) | 4-Bit Magnitude Comparator | 18@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC85N | SOT38-4
(DIP16) | 4-Bit Magnitude Comparator | 18@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC85PW | SOT403-1
(TSSOP16) | 4-Bit Magnitude Comparator | 18@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HCT85D | SOT109
| 4-Bit Magnitude Comparator; TTL Enabled | 20 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4 mA |
| 74HCT85DB | SOT338-1
(SSOP16) | 4-Bit Magnitude Comparator; TTL Enabled | 20 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4 mA |
| 74HCT85N | SOT38-4
(DIP16) | 4-Bit Magnitude Comparator; TTL Enabled | 20 | 4.5-5.5 V | 16 | Low Power | TTL | +/- 4 mA |
Similar products
74HC/HCT85
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