Features: • Output Drive Capability: 15 LSTTL Loads• Outputs Directly Interface to CMOS, NMOS and TTL• Operating Voltage Range: 2.0 to 6.0 V• Low Input Current: 1.0 mA• In Compliance with the Requirements Defined by JEDEC Standard No. 7A• Chip Complexity: 266 FE...
MC54HC574A: Features: • Output Drive Capability: 15 LSTTL Loads• Outputs Directly Interface to CMOS, NMOS and TTL• Operating Voltage Range: 2.0 to 6.0 V• Low Input Current: 1.0 mA•...
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PinoutDescriptionThe F373 contains eight D-type latches with 3-state output buffers. When the Latc...
PinoutDescriptionThe F374 consists of eight edge-triggered flip-flops with individual D-type input...
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 |
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, MC54/74HC574A 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.