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The HC74A is a high-speed dual D-type flip-flop with clear, manufactured by ON Semiconductor (ON) and Toshiba (TOS).

Specifications:

• Logic Family: HC (High-Speed CMOS)
• Function: Dual D-Type Flip-Flop with Clear
• Number of Flip-Flops: 2
• Supply Voltage Range: 2V to 6V
• High-Speed Operation: Typical propagation delay of 13 ns at 5V
• Low Power Consumption: CMOS technology ensures low static power dissipation
• Operating Temperature Range: -40°C to +85°C
• Output Drive Capability: 10 LSTTL loads
• Input Compatibility: TTL and CMOS levels

Descriptions:

The HC74A is a dual positive-edge-triggered D-type flip-flop with individual data (D), clock (CP), set (SD), and clear (CD) inputs. Each flip-flop features complementary outputs (Q and Q̅). The device is designed for high-speed operation while maintaining low power consumption.

Features:

• Independent Set and Clear Inputs: Asynchronous control for each flip-flop
• Positive-Edge Triggering: Data is transferred on the rising edge of the clock
• Wide Operating Voltage Range: 2V to 6V
• Balanced Propagation Delays: Ensures reliable timing performance
• High Noise Immunity: CMOS technology provides robust noise resistance
• Standard Pin Configuration: Compatible with industry-standard 14-pin DIP/SOIC packages

This device is commonly used in digital systems for data storage, synchronization, and sequential logic applications.