74LVC157ADB: Quad 2-input multiplexer
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.
It is useful for implementing highly irregular logic by generating any 4 of the 16 different functions of two variables with one variable common.
The device 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.
Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of these devices as translators in mixed 3.3 V and 5 V applications.
74LVC157ADB: Product Block Diagram
Outline 3d SOT338-1
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Quad 2-input multiplexer (REV 7.0) PDF (281.0 kB) 74LVC157A [English] | 25 Nov 2011 |
Application Notes (5)
| Name/Description | Modified Date |
|---|---|
| Sorting through the low voltage logic maze (REV 1.0) PDF (72.0 kB) AN10156 [English] | 13 Mar 2013 |
| Package lead inductance considerations in high-speed applications (REV 1.0) PDF (43.0 kB) AN212 [English] | 13 Mar 2013 |
| Pin FMEA for LVC family (REV 1.0) PDF (44.0 kB) AN11009 [English] | 04 Feb 2011 |
| Power considerations when using CMOS and BiCMOS logic devices (REV 1.0) PDF (100.0 kB) AN263 [English] | 05 Feb 2002 |
| Interfacing 3 Volt and 5 Volt Applications (REV 1.0) PDF (63.0 kB) AN240 [English] | 15 Sep 1995 |
Selector Guides (2)
| Name/Description | Modified Date |
|---|---|
| ロジック製品セレクションガイド... (REV 1.0) PDF (38.3 MB) LOGIC_SELECTION_GUIDE_2015_JP [English] | 19 Nov 2015 |
| Logic selection guide 2016 (REV 1.1) PDF (15.3 MB) 75017285 [English] | 08 Jan 2015 |
Package Information (1)
| Name/Description | Modified Date |
|---|---|
| plastic shrink small outline package; 16 leads; body width 5.3 mm (REV 1.0) PDF (306.0 kB) SOT338-1 [English] | 08 Feb 2016 |
Supporting Information (2)
| Name/Description | Modified Date |
|---|---|
| Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English] | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
IBIS Model
- lvc157a IBIS model (REV 1.0) ibs LVC157A 4/7/2013
SPICE model
- lvc Spice model (REV 1.0) ZIP LVC 5/7/2013
Ordering Information
| Product | Status | Family | Function | VCC (V) | Logic switching levels | Description | Package version | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC157ADB | Active | LVC | Digital multiplexers | 1.2 - 3.6 | CMOS/LVTTL | quad 2-input multiplexer | SOT338-1 | +/- 24 | 2.5 | low | -40~125 | 148 | 42.0 | SSOP16 | 16 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74LVC157ADB | | SOT338-1 | SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | 74LVC157ADB,118 (9352 608 99118) | VC157A | 74LVC157ADB |    | week 13, 2005 | 123.8 | 3.87 | 2.58E8 | 1 | 1 |
| Bulk Pack | Active | 74LVC157ADB,112 (9352 608 99112) | VC157A | 74LVC157ADB | | week 13, 2005 | 123.8 | 3.87 | 2.58E8 | 1 | 1 |
- Quad 2-input multiplexer 74LVC157APW
- Sorting through the low voltage logic maze 74LVC_H_245A_Q100
- Package lead inductance considerations in high-speed applications 74LVC_H_245A_Q100
- Pin FMEA for LVC family 74LVC1G123_Q100
- Power considerations when using CMOS and BiCMOS logic devices 74AHCT244PW
- Interfacing 3 Volt and 5 Volt Applications 74LVC377PW
- ロジック製品セレクションガイド... 74LVC_H_245A_Q100
- Logic selection guide 2016 74LVC_H_245A_Q100
- lvc157a IBIS model 74LVC157APW
- lvc Spice model 74LVC3G17GT
- plastic shrink small outline package; 16 leads; body width 5.3 mm 74HC_T_595_Q100
- Footprint for reflow soldering 74HC_T_595_Q100
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- 74LVC157A
- HEF4094B
