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Part Number: MC54HC574A
Description: The MC54/74HC574A is identical in pinout to the LS574. The device inputs are compatible with standard ...


Description: The MC54/74HC574A is identical in pinout to the LS574. The device inputs are compatible with standard ...
The MC54/74HC574A is identical in pinout to the LS574. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.
Data meeting the setup time is clocked to the outputs with the rising edge of the Clock. The Output Enable input does not affect the states of the flipflops, but when Output Enable is high, all device outputs are forced to the highimpedance state. Thus, data may be stored even when the outputs are not enabled.
The HC574A is identical in function to the HCT374A but has the flipflop inputs on the opposite side of the package from the outputs to facilitate PC board layout.
The HC574A is the noninverting version of the HC564.
| Symbol | Parameter | Value | Unit |
| vcc | DC Supply Voltage (Referenced to GND) | 0.5 to +7.0 | V |
| VIN | DC Input Voltage (Referenced to GND) | 0.5 to VCC + 0.5 | V |
| VOUT | DC Output Voltage (Referenced to GND) | 0.5 to VCC + 0.5 | V |
| LIN | DC Input Current, per Pin | ±20 | mA |
| IOUT | DC Onput Current, per Pin | ±35 | mA |
| ICC | DC Supply Current Per Supply Pin | ±75 | mA |
| PD | Power dissipation in still air piastic DIP SOIC package |
750 500 |
mW |
| TSTG | Storage Temperature | 65 to +150 | °C |
| TL | Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) |
260 | °C |
MC500
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