54165

54165 DM74165 8-Bit Parallel-to-Serial Converter August 1989 54165 DM74165 8-Bit Parallel-to-Serial Converter General Description The ’165 is an 8-bit parallel load or serial-in register with complementary outputs available from the last stage Parallel inputting occurs asynchronously when the Parallel Load (PL) input is LOW With PL HIGH serial shifting occurs on the rising edge of the clock new data enters via the Serial Data (DS) input The 2-input OR clock can be used to combine two independent clock sources or one input can act as an active LOW clock enable Connection Diagram Dual-In-Line-Package Logic Symbol TL F 9782 – 2 VCC e Pin 16 GND e Pin 8 TL F 9782 – 1 Order Number 54165DMQB 54165FMQB or DM74165N See NS Package Number J16A N16E or W16A Pin Names CP1 CP2 DS PL P0–P7 Q7 Q7 Description Clock Pulse Inputs (Active Rising Edge) Serial Data Input Asynchronous Parallel Load Input (Active LOW) Parallel Data Inputs Serial Output from Last Stage Complementary Output C1995 National Semiconductor Corporation TL F 9782 RRD-B30M115 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage 7V Input Voltage 5 5V Operating Free Air Temperature Range b 55 C to a 125 C 54 DM74 0 C to a 70 C Storage Temperature Range b 65 C to a 150 C Note The ‘‘Absolute Maximum Ratings’’ are those values beyond which the safety ...