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MC74HC74A-MC74HC74AD-MC74HC74ADR2-MC74HC74ADTR2-MC74HC74AF-MC74HC74AFEL-MC74HC74AN
Flip-Flop D-Type Type Dual
MC74HC74A
Dual D Flip-Flop with Set
and Reset
High−Performance Silicon−Gate CMOSThe MC74HC74A is identical in pinout to the LS74. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
This device consists of two D flip−flops with individual Set, Reset,
and Clock inputs. Information at a D−input is transferred to the
corresponding Q output on the next positive going edge of the clock
input. Both Q and Q outputs are available from each flip−flop. The Set
and Reset inputs are asynchronous.
Features Pb−Free Packages are Available** Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating Voltage Range: 2.0 to 6.0 V Low Input Current: 1.0 �A High Noise Immunity Characteristic of CMOS Devices In Compliance with the JEDEC Standard No. 7.0 A Requirements Chip Complexity: 128 FETs or 32 Equivalent Gates
RESET 1
DATA 1
CLOCK 1
SET 1
RESET 2
DATA 2
CLOCK 2
SET 2
PIN 14 = VCC
PIN 7 = GND
FUNCTION TABLE
Figure 1. LOGIC DIAGRAM