Product Summary

The ACT273 is an octal D Flip-Flop. It has eight edge-triggered D–type flip–flops with individual D inputs and Q outputs. The common
buffered Clock (CP) and Master Reset (MR) inputs load and reset (clear) all flip–flops simultaneously. The ACT273 is fully edge-triggered. The state of each D input, one setup time before the LOW–to–HIGH clock transition, is transferred to the corresponding Q output of the device. The ACT273 will be forced LOW independently of Clock or Data inputs by a LOW voltage level on the MR input. The ACT273 is useful for applications where the true output only is required and the Clock and Master Reset are common to all storage elements.

Parametrics

ACT273 absolute maximum ratings: (1)VCC, DC Supply Voltage (Referenced to GND): –0.5 to +7.0 V; (2)VIN, DC Input Voltage (Referenced to GND): –0.5 to VCC +0.5 V; (3)VOUT, DC Output Voltage (Referenced to GND): –0.5 to VCC +0.5 V; (4)IIN, DC Input Current, per Pin: ±20 mA; (5)IOUT, DC Output Sink/Source Current, per Pin: ±50 mA; (6)ICC, DC VCC or GND Current per Output Pin: ±50 mA; (7)Tstg, Storage Temperature: –65 to +150℃.

Features

ACT273 features: (1)Ideal Buffer for MOS Microprocessor or Memory; (2)Eight Edge-Triggered D Flip-Flops; (3)Buffered Common Clock; (4)Buffered, Asynchronous Master Reset; (5)See MC74AC377 for Clock Enable Version; (6)See MC74AC373 for Transparent Latch Version; (7)See MC74AC374 for 3-State Version; (8)Outputs Source/Sink 24 mA; (9)4ACT273 Has TTL Compatible Inputs.

Diagrams

ACT273 Logic Diagram

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