TI CD74HCT240PWR

The 'HC240 and 'HCT240 are inverting tri-state buffers with two active-low output enable terminals. The CD74HC241, 'HCT241, 'HC244, and 'HCT244 are all non-inverting tri-state buffers. The only difference is that the 241 has one active-high and one active-low output enable terminal, while the 244 has two active-low output enable terminals. All three types have the same pin configuration.

• HC/HCT240 inverting, HC/HCT241 non-inverting, HC/HCT244 non-inverting
• Typical propagation delay of HC240: 8ns at VCC = 5V, CL = 15pF, TA = 25°C
• 3-state output buffered inputs
• High-current bus driver outputs
• Fan-out (over temperature range):
  • Standard outputs: 10 LSTTL loads
  • Bus driver outputs: 15 LSTTL loads
• Wide operating temperature range: -55°C to 125°C
• Balanced propagation delays and transition times
• Significantly reduced power consumption compared to LSTTL logic ICs
• HC types:
  • Operating voltage: 2V to 6V
  • High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
• HCT types:
  • Operating voltage: 4.5V to 5.5V
  • Direct LSTTL input logic compatibility: VIL = 0.8V (max), VIH = 2V (min)
  • CMOS input compatibility: II ≤ 1μA at VOL, VOH