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74HC253;74HCT253
General description
The 74HC/HCT251 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/HCT251 are the logic implementations of single-pole 8-position switches with the state of three select inputs (S0,S1,S2) controlling the switch positions.
Assertion (Y) and negation (Y) outputs are both provided. The output enable input (OE) is active LOW. The logic function provided at the output, when activated, is:
Y =OE.(I0.S0.S1.S2 + I1.S0.S1.S2 +
+ I2.S0.S1.S2 + I3.S0.S1.S2 +
+ I4.S0.S1.S2 + I5.S0.S1.S2 +
+ I6.S0.S1.S2 + I7.S0.S1.S2)
Both outputs are in the high impedance OFF-state (Z) when the output enable input is HIGH, allowing multiplexer expansion by tying the outputs.
Features
- True and complement outputs
- Both outputs are 3-state for further multiplexer expansion
- Multifunction capability
- Permits multiplexing from n-lines to one line
- Output capability: standard
- ICC category: MSI
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74HC253D | 74HC253D | 9337 138 60652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | 74HC253D
| week 6, 2004 |
| 74HC253D | 74HC253D-T | 9337 138 60653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HC253D
| week 6, 2004 |
| 74HC253DB | 74HC253DB | 9351 898 60112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74HC253DB
| week 12, 2005 |
| 74HC253DB | 74HC253DB-T | 9351 898 60118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HC253DB
| week 12, 2005 |
| 74HC253N | 74HC253N | 9336 695 40652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | 74HC253N
| Always Pb-free |
| 74HCT253D | 74HCT253D | 9337 138 70652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | 74HCT253D
| week 6, 2004 |
| 74HCT253D | 74HCT253D-T | 9337 138 70653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | 74HCT253D
| week 6, 2004 |
| 74HCT253DB | 74HCT253DB | 9351 898 50112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74HCT253DB
| week 12, 2005 |
| 74HCT253DB | 74HCT253DB-T | 9351 898 50118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74HCT253DB
| week 12, 2005 |
| 74HCT253N | 74HCT253N | 9336 701 70652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | 74HCT253N
| Always Pb-free |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74HC253D | 9337 138 60652 | 0.2600 | not available | |||||
| 74HC253D | 9337 138 60653 | 0.2600 | Order samples | |||||
| 74HC253DB | 9351 898 60112 | 0.3000 | not available | |||||
| 74HC253DB | 9351 898 60118 | 0.3000 | Order samples | |||||
| 74HC253N | 9336 695 40652 | 0.2800 | NA | FUTURE ELECTRONICS | 3,802 | 7/4/2008 | Buy online | Order samples |
| NA | ARROW ELECTRONICS | 1,450 | 7/4/2008 | Buy online | ||||
| 74HCT253D | 9337 138 70652 | 0.2400 | NA | ARROW ELECTRONICS | 2,600 | 7/4/2008 | Buy online | not available |
| NA | AVNET ELECTRONICS MARKETING | 1,345 | 7/4/2008 | Buy online | ||||
| 74HCT253D | 9337 138 70653 | 0.2400 | NA | ARROW ELECTRONICS | 5,000 | 7/4/2008 | Buy online | not available |
| 74HCT253DB | 9351 898 50112 | 0.2400 | NA | DIGI-KEY CORPORATION | 2,128 | 6/29/2008 | Buy online | not available |
| 74HCT253DB | 9351 898 50118 | 0.2400 | Order samples | |||||
| 74HCT253N | 9336 701 70652 | 0.2800 | 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 |
|---|---|---|---|---|---|---|---|---|
| 74HC253D | SOT109-1
(SO16) | Dual 4-Input Multiplexer (3-State) | 17@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 7.8 mA |
| 74HC253DB | SOT338-1
(SSOP16) | Dual 4-Input Multiplexer (3-State) | 17@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 7.8 mA |
| 74HC253N | SOT38-4
(DIP16) | Dual 4-Input Multiplexer (3-State) | 17@5V | 2.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 7.8 mA |
| 74HCT253D | SOT109-1
(SO16) | Dual 4-Input Multiplexer; TTL Enabled (3-State) | 17 | 4.5-5.5V | 16 | Low Power | TTL | +/- 6 mA |
| 74HCT253DB | SOT338-1
(SSOP16) | Dual 4-Input Multiplexer; TTL Enabled (3-State) | 17 | 4.5-5.5V | 16 | Low Power | TTL | +/- 6 mA |
| 74HCT253N | SOT38-4
(DIP16) | Dual 4-Input Multiplexer; TTL Enabled (3-State) | 17 | 4.5-5.5V | 16 | Low Power | TTL | +/- 6 mA |
Similar products
74HC253;74HCT253 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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