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Texas Instruments SN74HC166PWR — Discrete Semiconductors
Texas Instruments

SN74HC166PWR 74HC Shift Register, 8-Bit, 16-TSSOP, 2V-6V

MPNSN74HC166PWR
End of Life

Texas Instruments 74HC series, SN74HC166PWR, 8-bit parallel or serial to serial shift register, push-pull output, 2V to 6V supply, -40°C to 85°C, 16-TSSOP surface mount package.

$0.58Ref. price · indicative, final on quote
SN74HC166PWR datasheet
Packaging16-TSSOP (0.173", 4.40mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

SN74HC166PWR Technical Specifications
ParameterValue
Series74HC
Logic typeShift Register
Output typePush-Pull
Mounting typeSurface Mount
Voltage2V ~ 6V
Operating temperature-40°C ~ 85°C
PackageTape & Reel (TR); Cut Tape (CT)
FunctionParallel or Serial to Serial
Case16-TSSOP (0.173\", 4.40mm Width)
Number of elements1
Number of bits per element8

Product details

8-bit shift register in the 74HC family

The SN74HC166PWR is an 8-bit parallel or serial-to-serial shift register from TI's 74HC logic family. It takes in data on eight parallel inputs or a single serial input and shifts it out on the serial output, controlled by a shift/load pin and a clock. The push-pull output stage drives standard CMOS or TTL loads directly. This part is a workhorse for expanding digital inputs on a microcontroller — think reading a bank of switches or a keypad over a few GPIO lines.

Supply range and temperature grade

Supply range is 2V to 6V. Operating temperature is -40°C to 85°C.

Sourcing and lifecycle

It's a current 74HC line item from TI, widely available through distribution. No last-time-buy risk here.

Frequently asked questions

Is SN74HC166PWR compatible with 5V logic?

Yes, the 2V to 6V supply range covers 5V operation. The inputs and outputs are 5V-tolerant at VCC = 5V, so it interfaces directly with 5V CMOS and TTL logic families.