Texas Instruments SN74LVC2G157DCUT, 74LVC series, single 2:1 multiplexer, 1.65 V to 5.5 V supply, 32 mA output drive, -40°C to 85°C, 8-VFSOP package, surface mount, ROHS3 compliant.
| Parameter | Value |
|---|---|
| Type | Multiplexer |
| Series | 74LVC |
| Mounting | Surface Mount |
| Supply voltage | 1.65V ~ 5.5V |
| Voltage supply source | Single Supply |
| Current - output high, low | 32mA, 32mA |
| Operating temperature | -40°C ~ 85°C |
| Circuit | 1 x 2:1 |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 8-VFSOP (0.091\", 2.30mm Width) |
| Independent circuits | 1 |
The Texas Instruments SN74LVC2G157DCUT is a single 2:1 multiplexer from the 74LVC logic family. It selects one of two data inputs and routes it to a single output, controlled by a select line. This is the part you reach for when a board needs to switch a digital signal between two sources — for example, selecting a clock source or muxing two sensor outputs into one ADC input. Operates from 1.65 V to 5.5 V. Output drive is 32 mA at both high and low levels.
It is a single 2:1 multiplexer — it selects one of two input signals and passes it to the output based on a digital select line. Think of it as a digital switch for logic-level signals.
The SN74LS348N is a priority encoder, not a multiplexer — it does a different job. The DS90CP22 is a crosspoint switch with a different pinout and function. For a direct replacement, look for any 74LVC2G157 from TI, NXP, or ON Semiconductor — they are pin-compatible and functionally identical.
The base part number SN74LVC2G157 refers to the logic family and function. The DCUT suffix specifies the package and tape/reel format — DCUT is the 8-VFSOP (VSSOP) package in Tape & Reel. The die and electrical specs are identical across package variants.