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74LVC157A
General description
The 74LVC157A is a high-performance, low-power, low-voltage, Si-gate CMOS device and superior to most advanced CMOS compatible TTL families.
Inputs can be driven from either 3.3 or 5 V devices. This feature allows the use of these devices as translators in a mixed 3.3 and 5 V environment.
The 74LVC157A is a quad 2-input multiplexer which select four bits of data from two sources under the control of a common select input (S). The four outputs present the selected data in the true (non-inverted) form. The enable input (E) is active LOW. When pin E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all the other input conditions. Moving the data from two groups of registers to four common output buses is a common use of the 74LVC157A. The state of the common data select input (S) determines the particular register from which the data comes. It can also be used as function generator.
The device is useful for implementing highly irregular logic by generating any 4 of the 16 different functions of two variables with one variable common.
The 74LVC157A is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined by the logic levels applied to pin S.
Features
- 5 V tolerant inputs for interfacing with 5 V logic
- Wide supply voltage range from 1.2 to 3.6 V
- CMOS low power consumption
- Direct interface with TTL levels
- Inputs accept voltages up to 5.5 V
- Complies with JEDEC standard no. 8-1A
- ESD protection:
- Specified from -40 to +85 Cel and -40 to +125 Cel.
-
HBM EIA/JESD22-A114-A exceeds 2000 V
MM EIA/JESD22-A115-A exceeds 200 V.
Products/packages
| Type number | North American Type number | Ordering code (12NC) | Product status | Package | Packing | Marking | Chemical content | Leadfree conversion date |
|---|---|---|---|---|---|---|---|---|
| 74LVC157ABQ | 74LVC157ABQ-G | 9352 736 82115 | Volume production | SOT763-1
(DHVQFN16) | Reel Pack, SMD, 7" | Standard Marking | 74LVC157ABQ
| Always Pb-free |
| 74LVC157AD | 74LVC157AD | 9352 608 98112 | Volume production | SOT109-1
(SO16) | Tube | Standard Marking | 74LVC157AD
| week 35, 2004 |
| 74LVC157AD | 74LVC157AD-T | 9352 608 98118 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13" | Standard Marking | 74LVC157AD
| week 35, 2004 |
| 74LVC157ADB | 74LVC157ADB | 9352 608 99112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74LVC157ADB
| week 13, 2005 |
| 74LVC157ADB | 74LVC157ADB-T | 9352 608 99118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74LVC157ADB
| week 13, 2005 |
| 74LVC157APW | 74LVC157APW | 9352 609 00112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | 74LVC157APW
| week 10, 2005 |
| 74LVC157APW | 74LVC157APW-T | 9352 609 00118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74LVC157APW
| week 10, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|
| 74LVC157ABQ | 9352 736 82115 | 0.3000 | NA | DIGI-KEY CORPORATION | 5,825 | 1/6/2009 | Buy online | Order samples | |
| 74LVC157AD | 9352 608 98112 | 0.2500 | NA | AVNET ELECTRONICS MARKETING | 2,000 | 1/7/2009 | Buy online | not available | |
| 74LVC157AD | 9352 608 98118 | 0.2500 | ASIA | SACL - Hong Kong/China | yes | 2500 | 01/08/2009 | Buy online | Order samples |
| NA | ARROW ELECTRONICS | 2,500 | 1/6/2009 | Buy online | |||||
| NA | AVNET ELECTRONICS MARKETING | 2,500 | 1/7/2009 | Buy online | |||||
| NA | MOUSER ELECTRONICS | 2,498 | 1/7/2009 | Buy online | |||||
| 74LVC157ADB | 9352 608 99112 | 0.2800 | not available | ||||||
| 74LVC157ADB | 9352 608 99118 | 0.2800 | ASIA | WPI | 2,000 | 2000 | 01/07/2009 | Buy online | Order samples |
| NA | AVNET ELECTRONICS MARKETING | 2,000 | 1/7/2009 | Buy online | |||||
| 74LVC157APW | 9352 609 00112 | 0.2500 | NA | ARROW ELECTRONICS | 1,872 | 1/6/2009 | Buy online | not available | |
| NA | MOUSER ELECTRONICS | 2,400 | 1/7/2009 | Buy online | |||||
| 74LVC157APW | 9352 609 00118 | 0.2500 | ASIA | WPI | 25,000 | 2500 | 01/07/2009 | Buy online | Order samples |
| NA | DIGI-KEY CORPORATION | 2,500 | 1/6/2009 | Buy online | |||||
| NA | DIGI-KEY CORPORATION | 2,500 | 1/6/2009 | Buy online | |||||
| NA | MOUSER ELECTRONICS | 250 | 1/7/2009 | Buy online |
Design support
Application Notes
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|
| 74LVC157ABQ | SOT763-1
(DHVQFN16) | 3.3V Quad 2-Input Multiplexer | 2.6 @ 3.3V | 1.2-3.6 | 16 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC157AD | SOT109-1
(SO16) | 3.3V Quad 2-Input Multiplexer | 2.6 @ 3.3V | 1.2-3.6 | 16 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC157ADB | SOT338-1
(SSOP16) | 3.3V Quad 2-Input Multiplexer | 2.6 @ 3.3V | 1.2-3.6 | 16 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC157APW | SOT403-1
(TSSOP16) | 3.3V Quad 2-Input Multiplexer | 2.6 @ 3.3V | 1.2-3.6 | 16 | Low Power or Battery Applications | TTL | +/- 24 mA |
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74LVC157A
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