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74LVC257A
General description
The 74LVC257A 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 5.0 V devices. In 3-state operation, outputs can handle 5 V. This feature allows the use of these devices as translators in a mixed 3.3 and 5 V environment.
The 74LVC257A is a quad 2-input multiplexer with 3-state outputs, which select 4 bits of data from two sources and are controlled by a common data select input (pin S). The data inputs from source 0 (pins 1I0 to 4I0) are selected when pin S is LOW and the data inputs from source 1 (pins 1I1 to 4I1) are selected when pin S is HIGH. Data appears at the outputs (pins 1Y to 4Y) in true (non-inverting) form from the selected inputs. The 74LVC257A 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. The outputs are forced to a high-impedance OFF-state when pin OE is HIGH.
Features
- 5 V tolerant inputs/outputs, 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
- Output drive capability 50 Ohm transmission lines at 85 Cel
- 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 |
|---|---|---|---|---|---|---|---|---|
| 74LVC257ABQ | 74LVC257ABQ-G | 9352 751 74115 | Volume production | SOT763-1
(DHVQFN16) | Reel Pack, SMD, 7" | Standard Marking | 74LVC257ABQ
| Always Pb-free |
| 74LVC257AD | 74LVC257AD | 9352 606 78112 | Volume production | SOT109-1
(SO16) | Tube | Standard Marking | 74LVC257AD
| week 35, 2004 |
| 74LVC257AD | 74LVC257AD-T | 9352 606 78118 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13" | Standard Marking | 74LVC257AD
| week 35, 2004 |
| 74LVC257ADB | 74LVC257ADB | 9352 606 79112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74LVC257ADB
| week 12, 2005 |
| 74LVC257ADB | 74LVC257ADB-T | 9352 606 79118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74LVC257ADB
| week 12, 2005 |
| 74LVC257APW | 74LVC257APW | 9352 606 80112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | 74LVC257APW
| week 10, 2005 |
| 74LVC257APW | 74LVC257APW-T | 9352 606 80118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74LVC257APW
| week 10, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74LVC257ABQ | 9352 751 74115 | 0.3300 | Order samples | |||||
| 74LVC257AD | 9352 606 78112 | 0.2800 | Order samples | |||||
| 74LVC257AD | 9352 606 78118 | 0.2800 | Order samples | |||||
| 74LVC257ADB | 9352 606 79112 | 0.2800 | not available | |||||
| 74LVC257ADB | 9352 606 79118 | 0.2800 | Order samples | |||||
| 74LVC257APW | 9352 606 80112 | 0.2800 | NA | ARROW ELECTRONICS | 4,102 | 7/3/2008 | Buy online | not available |
| 74LVC257APW | 9352 606 80118 | 0.2800 | Order samples |
Technical documents
Application Notes
Support Documents
Parametrics/similar products
| Type number | Package | Description | Propagation Delay(ns) | Voltage | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|
| 74LVC257ABQ | SOT763-1
(DHVQFN16) | 3.3V Quad 2-Input Multiplexer (3-State) | 3.9@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC257AD | SOT109-1
(SO16) | 3.3V Quad 2-Input Multiplexer (3-State) | 3.9@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC257ADB | SOT338-1
(SSOP16) | 3.3V Quad 2-Input Multiplexer (3-State) | 3.9@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
| 74LVC257APW | SOT403-1
(TSSOP16) | 3.3V Quad 2-Input Multiplexer (3-State) | 3.9@3.3V | 1.2-3.6 | Low Power or Battery Applications | TTL | +/- 24 mA |
Similar products
74LVC257A 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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