DATA SHEET
SN74LV157A Quadruple 2-Line to 1-Line Data Selectors/Multiplexers
1 Features
- Operates 2 V to 5.5 V VCC
- Inputs accept voltages to 5.5 V
- Max tpd of 7.5 ns at 5 V
- Typical VOLP (Output Ground Bounce) < 0.8 V at VCC, TA = 25°C
- Typical VOHV (Output VOH Undershoot) > 2 V at VCC, TA = 25°C
- Latch-up performance exceeds 100 mA per JESD 78, Class II
2 Applications
- Servers
- LED Displays
- Network Switches
- Telecom Infrastructure
- Motor Drivers
- I/O Expanders
3 Description
The
'LV157A devices are quadruple 2-line to 1-line
data selectors/multiplexers designed for
Logic Diagram
(Positive Logic)
2 V to 5.5 V VCC operation.
Package
Information(1)
| PART NUMBER | PACKAGE | BODY SIZE (NOM) |
|---|---|---|
| SN74LV157A | DB (SSOP, 16) | 6.2 mm × 5.3 mm |
| DGV (TVSOP, 16) | 3.6 mm × 4.4 mm | |
| DW ( SOIC,16) | 10.3 mm × 7.5 mm | |
| NS (SOP, 16) | 10.3 mm × 5.3 mm | |
| PW (TSSOP, 16) | 5 mm × 4.4 mm |
(1) For all available packages,
see the orderable addendum at the end of the data
sheet.
Logic Diagram
(Positive Logic)4 Revision History
Changes from Revision F (April 1998) to Revision G (March 2023)
- Added Applications, Package Information table, Pin Functions table, ESD Ratings table, Thermal Information table, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information sectionGo
5 Pin Configuration and Functions
Figure 5-1 D, DB, DGV, NS, or PW Package
(Top View)Table 5-1 Pin Functions
| PIN | I/O(1) | DESCRIPTION | |
|---|---|---|---|
| NO. | NAME | ||
| 1 | A/B | I | Address select |
| 2 | 1A | I | Channel 1, data input A |
| 3 | 1B | I | Channel 1, data input B |
| 4 | 1Y | I | Channel 1, data output |
| 5 | 2A | O | Channel 2, data input A |
| 6 | 2B | O | Channel 2, data input B |
| 7 | 2Y | I | Channel 2, data output |
| 8 | GND | — | Ground |
| 9 | 3Y | I | Channel 3, data output |
| 10 | 3B | I | Channel 3, data input B |
| 11 | 3A | I | Channel 3, data input A |
| 12 | 4Y | I | Channel 4, data output |
| 13 | 4B | I | Channel 4, data input B |
| 14 | 4A | I | Channel 4, data input A |
| 15 | G | I | Output strobe, active low |
| 16 | VCC | — | Positive supply |