Texas Instruments 20-SOIC SN74AHCT244DW

The SN74AHCT244DW is a CMOS-based octal buffer/line driver IC from Texas Instruments. It features three-state, in-phase outputs and is organized as two 4-bit sections with separate output enable (OE) inputs. When OE is low, it transparently passes data from the A inputs to the Y outputs; when OE is high, the outputs are tri-stated, presenting a high impedance. This device operates within a supply voltage range of 4.5V to 5.5V, with maximum output currents of 8mA for low-level outputs and -8mA for high-level outputs. The part comes in a DWR package and is suitable for TTL-compatible input signals.