Datasheet Details
| Part number | 54LS257B |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 63.27 KB |
| Description | QUAD 2-INPUT MULTIPLEXER |
| Datasheet | 54LS257B-Motorola.pdf |
|
|
Overview: QUAD 2-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS The LSTTL / MSI SN54 / 74LS257B and the SN54 / 74LS258B are Quad 2-Input Multiplexers with 3-state outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (non-inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (EO) Input, allowing the outputs to interface directly with bus oriented systems. It is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all Motorola TTL families. • Schottky Process For High Speed • Multiplexer Expansion By Tying Outputs Together • Non-Inverting 3-State Outputs • Input Clamp Diodes Limit High Speed Termination Effects • Special Circuitry Ensures Glitch Free Multiplexing • ESD > 3500 Volts CONNECTION DIAGRAM DIP (TOP VIEW) VCC E0 I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 SN54/74LS257B VCC = PIN 16 GND = PIN 8 1 2 3 4 56 78 S I0a I1a Za I0b I1b Zb GND VCC E0 I0c I1c Zc I0d I1d Zd 16 15 14 13 12 11 10 9 SN54/74LS258B 1 2 3 4 56 78 S I0a I1a Za I0b I1b Zb GND NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package.
| Part number | 54LS257B |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 63.27 KB |
| Description | QUAD 2-INPUT MULTIPLEXER |
| Datasheet | 54LS257B-Motorola.pdf |
|
|
|
The LS257B and LS258B are Quad 2-Input Multiplexers with 3-state ou
Compare 54LS257B distributor prices and check real-time stock availability from major suppliers. Prices and inventory may vary by region and order quantity.
| Brand Logo | Part Number | Description | Manufacturer |
|---|---|---|---|
 |
54LS257B | Quad 2-Data Selectors/Multiplexers | National Semiconductor |
 |
54LS257B | QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS | Texas Instruments |
|
54LS257A | TRI-STATE Quad 2-Data Selectors/Multiplexers | National Semiconductor |
| Part Number | Description |
|---|---|
| 54LS256 | DUAL 4-BIT ADDRESSABLE LATCH |
| 54LS258B | QUAD 2-INPUT MULTIPLEXER |
| 54LS21 | DUAL 4-INPUT AND GATE |
| 54LS22 | DUAL 4-INPUT NAND GATE |
| 54LS26 | QUAD 2-INPUT NAND BUFFER |
| 54LS290 | 4-BIT BINARY COUNTER |
| 54LS293 | 4-BIT BINARY COUNTER |
| 54LS04 | HEX INVERTER |
| 54LS122 | RETRIGGERABLE MONOSTABLE MULTIVIBRATORS |
| 54LS123 | RETRIGGERABLE MONOSTABLE MULTIVIBRATORS |