74HC151 8-Input Data Selector / Multiplexer
High-speed silicon-gate CMOS 8-channel data selector/multiplexer. Decodes 3 binary address inputs (S0, S1, S2) to select one of eight data sources (D0 through D7) with complementary true (Y) and inverted (~W) outputs.
Aliase:SN74HC151, 74HC151N, 74HCT151, 8-to-1 Multiplexer, Data Selector
DIP-16 Top View
16 Pins
Pinout Table16
| Pin | Signal / Name | Type | Alternative Functions |
|---|---|---|---|
| 1 | D3 | Digital | Multiplexer Data Input 3 |
| 2 | D2 | Digital | Multiplexer Data Input 2 |
| 3 | D1 | Digital | Multiplexer Data Input 1 |
| 4 | D0 | Digital | Multiplexer Data Input 0 |
| 5 | Y | Digital | Multiplexer True Output |
| 6 | ~W | Digital | Multiplexer Inverted Output (~Y) |
| 7 | ~E | Digital | Strobe / Enable Input (Active Low: High forces Y=0, ~W=1) |
| 8 | GND | Ground | Ground Connection (0V) |
| 9 | S2 | Digital | Address Select Line 2 (MSB - Bit C) |
| 10 | S1 | Digital | Address Select Line 1 (Bit B) |
| 11 | S0 | Digital | Address Select Line 0 (LSB - Bit A) |
| 12 | D7 | Digital | Multiplexer Data Input 7 |
| 13 | D6 | Digital | Multiplexer Data Input 6 |
| 14 | D5 | Digital | Multiplexer Data Input 5 |
| 15 | D4 | Digital | Multiplexer Data Input 4 |
| 16 | VCC | Power | Positive Power Supply (+2.0V to +6.0V) |