The MC74ACT125DG: Each of the four elements handles one bit, with 3-state outputs that let you disable the bus when the output-enable pin is driven high. Output drive is symmetrical — 24mA source and 24mA sink — enough to drive a 5V CMOS input or a small LED through a series resistor without a separate buffer stage. The 14-SOIC footprint is common across many 74ACT logic parts, so board layout for this buffer can reuse an existing pattern.
onsemi MC74ACT125DG 74ACT Buffer, 5.5V 14-SOIC
MPNMC74ACT125DG
End of Life
onsemi 74ACT series quad buffer, non-inverting, 3-state outputs, 4.5V~5.5V supply, 24mA output drive, -40°C~85°C, 14-SOIC (0.154", 3.90mm Width), tube.
$0.64Ref. price · indicative, final on quote
Packaging14-SOIC (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Series74ACT
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | 74ACT |
| Logic type | Buffer, Non-Inverting |
| Output type | 3-State |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Current - output high, low | 24mA, 24mA |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Number of elements | 4 |
| Number of bits per element | 1 |