Datasheet Details
| Part number | MC74AC251 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 139.53 KB |
| Description | 8-Input Multiplexer |
| Datasheet | MC74AC251 MC74ACT251 Datasheet (PDF) |
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Overview: ( DataSheet : .. ) MC74AC251 MC74ACT251 8ĆInput Multiplexer with 3ĆState Outputs The MC74AC251/74ACT251 is a high-speed 8-input digital multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. It can be used as a universal function generator to generate any logic function of four variables. Both true and plementary outputs are provided. • • • • • Multifunctional Capability On-Chip Select Logic Decoding Inverting and Noninverting 3-State Outputs Outputs Source/Sink 24 mA ′ACT251 Has TTL patible Inputs VCC 16 I4 15 I5 14 I6 13 I7 12 S0 11 S1 10 S2 9 N SUFFIX CASE 648-08 PLASTIC 8-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS 1 I3 2 I2 3 I1 4 I0 5 Z 6 Z 7 OE 8 GND D SUFFIX CASE 751B-05 PLASTIC PIN NAMES S0–S2 OE I0–I7 Z Z Select Inputs 3-State Output Enable Input Multiplexer Inputs 3-State Multiplexer Output plementary 3-State Multiplexer Output LOGIC SYMBOL S0 OE I0 I1 I2 I3 I4 I5 I6 I7 S1 S2 Z Z TRUTH TABLE Inputs OE H L L L L L L L L S2 X L L L L H H H H S1 X L L H H L L H H S0 X L H L H L H L H Outputs Z Z I0 I1 I2 I3 I4 I5 I6 I7 Z Z I0 I1 I2 I3 I4 I5 I6 I7 H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance .. ..
This datasheet includes multiple variants, all published together in a single manufacturer document.
| Part number | MC74AC251 |
|---|---|
| Manufacturer | Motorola Semiconductor (now NXP Semiconductors) |
| File Size | 139.53 KB |
| Description | 8-Input Multiplexer |
| Datasheet | MC74AC251 MC74ACT251 Datasheet (PDF) |
|
|
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This device is a logical implementation of a single-pole, 8-position switch with the switch position controlled by the state of three Select inputs, S0, S1, S2.
Both true and plementary outputs are provided.
The Output Enable input (OE) is active LOW.
| Part Number | Description |
|---|---|
| MC74AC253 | DUAL 4-INPUT MULTIPLEXER |
| MC74AC256 | DUAL 4-BIT ADDRESSABLE LATCH |
| MC74AC257 | QUAD 2-INPUT MULTIPLEXER |
| MC74AC258 | QUAD 2-INPUT MULTIPLEXER |
| MC74AC259 | 8-BIT ADDRESSABLE LATCH |
| MC74AC20 | DUAL 4-INPUT NAND GATE |
| MC74AC240 | OCTAL BUFFER/LINE DRIVER |
| MC74AC241 | OCTAL BUFFER/LINE DRIVER |
| MC74AC244 | OCTAL BUFFER/LINE DRIVER |
| MC74AC245 | OCTAL BIDIRECTIONAL TRANSCEIVER |