Select site:
- English
74LV251
Datasheet
General description
The 74LV251 is a low-voltage Si-gate CMOS device and is pin and function compatible with 74HC/HCT251.
The 74LV251 is an 8-input multiplexer with 8 binary inputs (I0 to I7)an output enable input (OE) and three select inputs (S0, S1, S2). One of the eight binary inputs is selected by the select inputs and is routed to the outputs (Y,Y). 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
- Optimized for low voltage applications: 1.0 to 3.6 V
- Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V
- Typical V OLP (output ground bounce) < 0.8 V at VCC = 3.3 VT amb = 25°C
- Typical V OHV (output V OH undershoot) > 2 V at VCC = 3.3 VT amb = 25°C
- 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 |
|---|---|---|---|---|---|---|---|---|
| 74LV251D | 74LV251D | 9351 560 80112 | Volume production | SOT109-1
(SO16) | Tube | Standard Marking | 74LV251D
| week 6, 2004 |
| 74LV251D | 74LV251D-T | 9351 560 80118 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13" | Standard Marking | 74LV251D
| week 6, 2004 |
| 74LV251DB | 74LV251DB | 9351 660 50112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | 74LV251DB
| week 12, 2005 |
| 74LV251DB | 74LV251DB-T | 9351 660 50118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74LV251DB
| week 12, 2005 |
| 74LV251N | 74LV251N | 9351 560 90112 | Volume production | SOT38-4
(DIP16) | Tube | Standard Marking | 74LV251N
| Always Pb-free |
| 74LV251PW | 74LV251PW | 9351 746 70112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | 74LV251PW
| week 10, 2005 |
| 74LV251PW | 74LV251PW-T | 9351 746 70118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | 74LV251PW
| week 10, 2005 |
Pricing/ordering/availability
| Type number | Ordering code(12NC) | Indicative price/unit($) | Region | Distributor | In stock | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|
| 74LV251D | 9351 560 80112 | 0.5000 | NA | DIGI-KEY CORPORATION | 770 | 6/29/2008 | Buy online | Order samples |
| 74LV251D | 9351 560 80118 | 0.5000 | Order samples | |||||
| 74LV251DB | 9351 660 50112 | 0.5000 | NA | DIGI-KEY CORPORATION | 1,022 | 6/29/2008 | Buy online | not available |
| 74LV251DB | 9351 660 50118 | 0.5000 | Order samples | |||||
| 74LV251N | 9351 560 90112 | 0.5000 | NA | DIGI-KEY CORPORATION | 919 | 6/29/2008 | Buy online | Order samples |
| 74LV251PW | 9351 746 70112 | 0.5000 | NA | MOUSER ELECTRONICS | 2,385 | 7/6/2008 | Buy online | not available |
| NA | DIGI-KEY CORPORATION | 128 | 6/29/2008 | Buy online | ||||
| 74LV251PW | 9351 746 70118 | 0.5000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 74LV251D | SOT109-1
(SO16) | 8-Input Multiplexer (3-State) | 14@3.3V | 1.0-3.6 V | 16 | Low Power or Battery Applications | TTL | +/- 6 mA |
| 74LV251DB | SOT338-1
(SSOP16) | 8-Input Multiplexer (3-State) | 14@3.3V | 1.0-3.6 V | 16 | Low Power or Battery Applications | TTL | +/- 6 mA |
| 74LV251N | SOT38-4
(DIP16) | 8-Input Multiplexer (3-State) | 14@3.3V | 1.0-3.6 V | 16 | Low Power or Battery Applications | TTL | +/- 6 mA |
| 74LV251PW | SOT403-1
(TSSOP16) | 8-Input Multiplexer (3-State) | 14@3.3V | 1.0-3.6 V | 16 | Low Power or Battery Applications | TTL | +/- 6 mA |
Similar products
74LV251 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.
Disclaimer
The information published on product information pages of the www.nxp.com or www.semiconductors.com websites is an extract from product data sheets and is for information purposes only. For detailed information please check the most recent version of the relevant product data sheet as published on these websites. In the event of any conflict between product information pages and data sheets or deviations from information provided in the product data sheets on these product information pages, the information provided in the product data sheets shall prevail.
The product status of the product(s) described in the product data sheet may have changed since publication of the data sheet and therefore information in datasheets on product status may be outdated. The latest information on product status is published on the product information pages of the above-mentioned websites.
As from October 1st, 2006 Philips Semiconductors has a new trade name - NXP Semiconductors, which will be used in future data sheets together with new contact details. In data sheets where the previous Philips references remain, please use the new links as shown below.
- http://www.philips.semiconductors.com use http://www.nxp.com
- http://www.semiconductors.philips.com use http://www.nxp.com (Internet)
- sales.addresses@www.semiconductors.philips.com use salesaddresses@nxp.com (e-mail)
The copyright notice at the bottom of each page (or elsewhere in the document, depending on the version)
- © Koninklijke Philips Electronics N.V. (year). All rights reserved -
is replaced with:
- © NXP B.V. (year). All rights reserved.-
If you have any questions related to the data sheet, please contact our nearest sales office via e-mail or phone (details via salesaddresses@nxp.com). Thank you for your cooperation and understanding.