74FCT series, Logic Type Buffer, Non-Inverting, Output Type 3-State, Voltage - Supply 4.75V ~ 5.25V, Number of Elements 2, Number of Bits per Element 4, Current - Output High, Low 15mA, 64mA, Operating Temperature -40°C ~ 85°C (TA), Mounting Type Surface Mount, Package / Case 20-SSOP (0.154", 3.90mm Width), Supplier Device Package 20-QSOP.
| Parameter | Value |
|---|---|
| Series | 74FCT |
| Logic type | Buffer, Non-Inverting |
| Output type | 3-State |
| Mounting | Surface Mount |
| Supply voltage | 4.75V ~ 5.25V |
| Current - output high, low | 15mA, 64mA |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Bulk |
| Case | 20-SSOP (0.154\", 3.90mm Width) |
| Number of elements | 2 |
| Number of bits per element | 4 |
The 74FCT244ATQG8: Output drive is 15mA source and 64mA sink per channel, which gives enough current to drive a standard TTL load or a short PCB trace. The 3-state outputs let multiple buffers share a bus without contention.
The 74FCT244ATQG8 is a different package variant from 74FCT244ATQG. The '8' suffix typically indicates a different packaging or reel option. Verify the package and pin compatibility against your board's footprint before substituting.
No. The 74FCT244ATQG8 requires a 4.75V to 5.25V supply and its input thresholds are designed for 5V logic. It is not suitable for 3.3V logic without level translation.