Texas Instruments 74HC series SN74HC151PWR, Multiplexer, 1 x 8:1, 2V to 6V, -40°C to 85°C, 16-TSSOP, Surface Mount.
| Parameter | Value |
|---|---|
| Type | Multiplexer |
| Series | 74HC |
| Mounting | Surface Mount |
| Supply voltage | 2V ~ 6V |
| Voltage supply source | Single Supply |
| Current - output high, low | 7.8mA, 7.8mA |
| Operating temperature | -40°C ~ 85°C |
| Circuit | 1 x 8:1 |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 16-TSSOP (0.173\", 4.40mm Width) |
| Independent circuits | 1 |
The SN74HC151PWR is a single 8:1 multiplexer from TI's 74HC family. It selects one of eight data inputs and routes it to a single output, controlled by a three-bit address.
With a supply range of 2V to 6V, this part handles 3.3V and 5V systems cleanly. If you need more fan-out, buffer the output.
Yes. The 2V to 6V supply range covers 3.3V operation. At 3.3V VCC, the HC family input thresholds are CMOS-compatible, so it interfaces directly with 3.3V microcontrollers and FPGAs without extra level shifting.
The SN74HCT151 uses TTL-compatible input thresholds, making it a drop-in replacement for legacy 74LS or 74S logic at 5V. The HC version uses CMOS thresholds, which gives better noise margin at 3.3V but may not reliably recognise a TTL-level 'low' at 5V. For new 3.3V designs, the HC variant is the cleaner choice.