74HCT244D

The 74HC244 and 74HCT244 are 8-bit buffers/line drivers with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enable inputs (1OE and 2OE), each controlling four 3-state outputs. When nOE is HIGH, the outputs are in a high-impedance off-state. Inputs include clamp diodes, allowing inputs to be connected to voltages exceeding VCC using current-limiting resistors.

Key features

• Wide supply voltage range: 2.0 V ~ 6.0 V
• High noise immunity
• CMOS low power consumption
• Latch-up performance exceeds 250 mA
• Octal bus interface
• Non-inverting tri-state outputs
• JEDEC compliant:
• JESD8C (2.7 V ~ 3.6 V)
• JESD7A (2.0 V ~ 6.0 V)
• Input levels:
• 74HC244: CMOS level
• 74HCT244: TTL level
• ESD protection:
• HBM ANSI/ESDA/JEDEC JS-001 Class 3A exceeds 6000 V
• CDM ANSI/ESDA/JEDEC JS-002 Class C3 exceeds 2000 V
• Multiple package options