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SN74ALS166NSRG4 SOP-16
TI
  • SN74ALS166NSRG4
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SN74ALS166NSRG4

Counter Shift Registers Parallel Load 8B Serial Shift Registr

Manufacturer :
Texas Instruments, Inc
Package/Case :
SOP-16
Product Categories :
Counter Shift Registers
Datasheet:
SN74ALS166NSRG4 PDF
RoHs Status:
Rohs
In-stock:
200

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SN74ALS166NSRG4 Product Details

The SN74ALS166NSRG4 parallel-load 8-bit shift register is compatible with most other TTL logic families. All inputs are buffered to lower the drive requirements. Input clamping diodes minimize switching transients and simplify system design.

These parallel-in or serial-in, serial-out registers have a complexity of 77 equivalent gates on the chip. They feature gated clocks (CLK and 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 data (SER) input and couples the eight flip-flops for serial shifting with each clock pulse. When low, the parallel (broadside) data (A-H) 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 the clock pulse through a two-input positive-NOR gate, permitting one input to be used as a clock-enable or clock-inhibit function. Holding either of the clock inputs 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 clock input. CLK INH should be changed to the high level only when CLK is high. The buffered CLR\ overrides all other inputs, including CLK, and sets all flip-flops to zero.

The SN74ALS166NSRG4 is characterized for operation from 0°C to 70°C.

Feature

  • Synchronous Load
  • Direct Overriding Clear
  • Parallel-to-Serial Conversion
  • Package Options Include Plastic Small-Outline (D) and Shrink Small-Outline (DB) Packages and Standard Plastic (N) DIP

Technical Parameters

Counting Sequence Serial/Parallel to Serial Minimum Operating Temperature 0 C
Number of Circuits 1 Packaging Reel
Package / Case SOP-16 Function Shift Register
Logic Family 74ALS Mounting Style SMD/SMT
Logic Type Bipolar Number of Output Lines 1
Number of Input Lines 9 Operating Supply Voltage 4.5 V to 5.5 V
Propagation Delay Time 13 ns Factory Pack Quantity 2000
Maximum Operating Temperature + 70 C Supply Voltage Max 5.5 V

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Texas Instruments Incorporated designs and manufactures analog technologies, digital signal processing (DSP) and microcontroller (MCU) semiconductors. TI is a leader in semiconductor solutions for ana...
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