Datasheet 74HC595 (Diodes) - 2

74HC595 Pin Descriptions Functional Diagram Pin Number Pin Name Function
1 Q1 Parallel Data Output 1 14 DS 2 Q2 Parallel Data Output 2 11 SHCP 3 Q3 Parallel Data Output 3
8-Stage Shift Register
10 MR 4 Q4 Parallel Data Output 4 5 Q5 Parallel Data Output 5 Q7S 9 6 Q6 Parallel Data Output 6 7 Q7 Parallel Data Output 7 12 STCP
8-Bit Storage Register
8 GND Ground 9 Q7S Serial Data Output 10 Master Reset Input 11 SHCP Shift Register Clock Input 13 OE
3-State Outputs
12 STCP Storage Register Clock Input 13 E Output Enable Input Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 14 DS Serial Data Input 15 1 2 3 4 5 6 7 15 Q0 Parallel Data Output 0 16 VCC Supply Voltage
Logic Diagram
STAGE 0 STAGES 1 TO 6 STAGE 7 DS D Q D Q D Q Q7S FF0 FF7 CP CP R R SHCP MR D Q D Q LATCH LATCH CP CP STCP OE Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 74HC595 2 of 11 November 2018 Document number: DS35492 Rev. 4 - 2
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