Hitachi HD74HC242
The HD74HC242 is an inverting buffer and the HD74HC243 is a noninverting buffer. Each device has one active high enable (GBA), and one active low enable ( GAB). The device does not have schmitt trigger inputs.| Part No. | HD74HC242 |
|---|---|
| Datasheet | HD74HC242 Download |
| Manufacturer |  Hitachi |
| Description | Quad. Bus Transceivers (with 3-state outputs)/Quad. Bus Transceivers (with noninverted 3-state outputs) |
| Buy | Stock & Price |
DESCRIPTION
GBA enables the A output and GAB enables the B outputs. The device does not have schmitt trigger inputs.FEATURES
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● High Speed Operation: tpd = 10 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table HD74HC242 Control inputs GAB H L H L I O O Z : : : : GBA H H L L Input Output Inverting Output Hight Impedance Data Port Status A O Z Z I B I Z Z O HC74HC243 Data Port Status A O Z Z I B I Z Z O HD74HC242/HD74HC243 Pin Arrangement HD74HC242 GAB NC 1A 2A 3A 4A GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC GBA NC 1B 2B 3B 4B (Top view) HD74HC243 GAB NC 1A 2A 3A 4A GND 1 2 3 4 5 6 7 14 13 12 11 10 9 8 VCC GBA NC 1B 2B 3B 4B (Top view) 2 HD74HC242/HD74HC243
ABSOLUTE MAXIMUM RATINGS
Item Supply voltage range Input voltage Output voltage DC current drain per pin DC current drain per VCC, GND DC input diode current DC outpu...
