Texas Instruments 74FCT series CY74FCT2244CTSOC, Buffer Non-Inverting, 2-Element 4-Bit, 3-State Output, 15mA/12mA, 4.75V–5.25V, -40°C to 85°C, 20-SOIC.
| 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, 12mA |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tube |
| Case | 20-SOIC (0.295\", 7.50mm Width) |
| Number of elements | 2 |
| Number of bits per element | 4 |
The CY74FCT2244CTSOC is a 74FCT-series non-inverting buffer from Texas Instruments, organized as two independent 4-bit elements with 3-state outputs. It runs on a 4.75V to 5.25V supply rail — strictly 5V logic, not 3.3V compatible. Each output can source 15mA or sink 12mA, enough for standard TTL fan-out on a backplane or shared data bus.
The commercial-grade SN74LS645-1N (0°C to 70°C) would not survive those environments.
No. The minimum supply voltage is 4.75V. For a 3.3V bus buffer, look at the SN74LVTH16245ADGVR family which operates down to 2.7V.