SN74HC393N / SN74HC51N / SN74HC54N / SN74HC73N DIP-14 Logic ICs – Pack of 5

SN74HC393N / SN74HC51N / SN74HC54N / SN74HC73N DIP-14 Logic ICs – Pack of 5

This pack covers four specialized 74HC series DIP-14 logic ICs – a dual binary counter, AND-OR-INVERT gates, and a JK flip-flop – providing medium-complexity combinational and sequential logic functions for digital circuit design. All devices are high-speed CMOS operating from 2V to 6V, compatible with Arduino, Raspberry Pi, and 5V TTL systems.

IC Descriptions

SN74HC393N – Dual 4-Bit Binary Counter

• Two independent 4-bit ripple binary counters (counts 0–15 each)
• Asynchronous clear (CLR) per counter
• Negative edge-triggered clock input
• Carry output from Q3 for cascading to 8-bit, 12-bit, 16-bit counters
• Use cases: Frequency division, event counting, address generation, timer circuits
• Note: Ripple counter (asynchronous) – use 74HC163 for synchronous counting

SN74HC51N – Dual AND-OR-INVERT Gate

• Two independent AND-OR-INVERT (AOI) gates
• Gate 1: 2-wide 2-input AOI (2 AND gates feeding 1 NOR)
• Gate 2: 2-wide 2-input AOI
• Use cases: Compact combinational logic, sum-of-products implementation, carry logic in adders
• Implements complex logic in fewer gates than discrete AND + OR + NOT

SN74HC54N – 4-Wide AND-OR-INVERT Gate

• Single 4-wide AND-OR-INVERT gate (4 AND gates feeding 1 NOR)
• Inputs: 2+2+2+2 (four 2-input AND gates)
• Use cases: Complex combinational logic, carry-lookahead adder logic, multiplexer control

SN74HC73N – Dual JK Flip-Flop with Clear

• Two independent negative edge-triggered JK flip-flops
• Asynchronous clear (CLR, active LOW) per flip-flop
• J=1, K=1 → Toggle mode (divide-by-2 counter)
• J=1, K=0 → Set | J=0, K=1 → Reset | J=0, K=0 → Hold
• Use cases: Toggle flip-flop, frequency divider, state machine design, ripple counter stages

Common 74HC Specifications

• Supply Voltage: 2V – 6V
• Propagation Delay: ~8–15ns (typical at 4.5V)
• Output Drive Current: ±25mA per pin
• Operating Temperature: −40°C to +125°C

Package Contents

• 5 × DIP-14 logic ICs (select variant: SN74HC393N, SN74HC51N, SN74HC54N, or SN74HC73N)

Specialized 74HC logic functions – dual counters, AND-OR-INVERT gates, and JK flip-flops for advanced digital circuit design and sequential logic applications.

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