8-BIT PARALLEL-LOAD SHIFT REGISTERS

The HC166 parallel-in or serial-in, serial-out Registers feature gated Clock (CLK, CLK INH) inputs and an overriding clear (CLR) input. The parallel-in or serial-in modes are established by the shift / load (SH/LD) input. When high, SH/LD enables the serial (SER) data input and couples the eight Flip-Flops for serial shifting with each Clock (CLK) pulse. When low, the parallel (broadside) data inputs are enabled, and synchronous loading occurs on the next Clock pulse. During parallel loading, serial data flow is inhibited. Clocking is accomplished on the low-to-high-level edge of CLK through a 2-input positive-NOR Gate permitting one input to be used as a clock-enable or clock-inhibit function. Holding either CLK or CLK INH high inhibits clocking; holding either low enables the other Clock input. This allows the system Clock to be free running, and the Register CAN be stopped on command with the other Clock input. CLK INH should be changed to the high level only when CLK is high. CLR overrides all other inputs, including CLK, and resets all Flip-Flops to zero. The SN54HC166 is characterized for operation over the full military temperature range of 55C to 125C. The SN74HC166 is characterized for operation from 40C to 85C. By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74HC166DE4 Texas Instruments HC/UH SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16, GREEN, PLASTIC, SOIC-16
SN74HC166NSR Texas Instruments 8-Bit Parallel-Load Shift Registers 16-SO -40 to 85
SN74HC166PWTE4 Texas Instruments HC/UH SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16, GREEN, PLASTIC, TSSOP-16
SN74HC166DRE4 Texas Instruments 8-Bit Parallel-Load Shift Registers 16-SOIC -40 to 85
SN74HC166PW Texas Instruments 8-Bit Parallel-Load Shift Registers 16-TSSOP -40 to 85
SN74HC166DRG4 Texas Instruments 8-Bit Parallel-Load Shift Registers 16-SOIC -40 to 85
SN74HC166PWE4 Texas Instruments HC/UH SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16, GREEN, PLASTIC, TSSOP-16
SN74HC166AIDRQ1 Texas Instruments Automotive Catalog 8-Bit Parallel-Load Shift Registers 16-SOIC -40 to 85
SN74HC166DBRE4 Texas Instruments HC/UH SERIES, 8-BIT RIGHT PARALLEL IN SERIAL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16, GREEN, PLASTIC, SSOP-16
SN74HC166N Texas Instruments 8-Bit Parallel-Load Shift Registers 16-PDIP -40 to 85
SN74HC166 's PackagesSN74HC166 's pdf datasheet
SN54HC166




SN74HC166 Pinout, Pinouts
SN74HC166 pinout,Pin out
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