MC74HC574A

MC74HC574A Octal 3-State Noninverting D Flip-Flop High−Performance Silicon−Gate CMOS The MC74HC574A is identical in pinout to the LS574. The device inputs are compatible with standard CMOS outputs; with pull−up resistors, they are compatible with LSTTL outputs. Data meeting the set−up time is clocked to the outputs with the rising edge of the Clock. The Output Enable input does not affect the states of the flip−flops but when Output Enable is high, all device outputs are forced to the high−impedance state. Thus, data may be stored even when the outputs are not enabled. The HC574A is identical in function to the HC374A but has the flip−flop inputs on the opposite side of the package from the outputs to facilitate PC board layout. 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. 7 A Chip Complexity: 266 FETs or 66.5 Equivalent Gates NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable These Devices are Pb−Free and are RoHS Compliant DATA INPUTS D0 2 D1 3 D2 4 D3 5 D4 6 D5 7 D6 8 D7 9 CLOCK 11 OUTPUT ENABLE 1 19 Q0 18 Q1 17 Q2 16 Q3 15 Q4 14 Q5 13 Q6 12 Q7 NONINVERTING OUTPUTS PIN 20 = VCC PIN 10 = GND Figure 1. Logic Diagram © Semiconductor Components Industries, LLC, 2014 1 August, 2014 ...