The HC165 are 8-bit parallel-load Shift registers SN54HC165 SN74HC165 that, when clocked, shift the data toward a serial (QH) output. Parallel-in access to each stage is provided by eight individual direct data (AH) inputs that are enabled by a low level at the shift/load (SH/LD) input. The HC165 also feature a clock-inhibit (CLK INH) function and a complementary serial (QH) output. Clocking is accomplished by a low-to-high transition of the Clock (CLK) input while SH/LD is held high and CLK INH is held low. The functions of CLK and CLK INH are interchangeable. Since a low CLK and a low-to-high transition of CLK INH also accomplish clocking, CLK INH should be changed to the high level only while CLK is high. Parallel loading is inhibited when SH/LD is held high. While SH/LD is low, the parallel inputs to the Register are enabled independently of the levels of the CLK, CLK INH, or serial (SER) inputs. The SN54HC165 is characterized for operation over the full military temperature range of 55C to 125C. The SN74HC165 is characterized for operation from 40C to 85C. By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN54HC165J Texas Instruments Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125
SN54HC165 's PackagesSN54HC165 's pdf datasheet

SN54HC165 Pinout, Pinouts
SN54HC165 pinout,Pin out
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