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High Speed CMOS Logic 8-Bit Parallel-In/Serial-Out Shift Register

Inventory: 70,623
Custom reel may be available

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  |   View additional information for CD74HC165

Same as: CD74HC165M96G4   This part number is identical to the part number listed above. You can only order quantities of the part number listed above.

Packaging information

Package | Pins SOIC (D) | 16
Operating temperature range (°C) M (-55 to 125)
Package qty | Carrier: 2,500 | LARGE T&R
Custom reel may be available
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Quality information

RoHS Yes
Lead finish / Ball material NIPDAU
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View


  • Buffered Inputs
  • Asynchronous Parallel Load
  • Complementary Outputs
  • Fanout (Over Temperature Range)
    • Standard Outputs. . . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . -55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH


The ’HC165 and ’HCT165 are 8-bit parallel or serial-in shift registers with complementary serial outputs (Q7 and Q\7) available from the last stage. When the parallel load (PL\) input is LOW, parallel data from the D0 to D7 inputs are loaded into the register asynchronously. When the PL\ is HIGH, data enters the register serially at the DS input and shifts one place to the right (Q0 → Q1 → Q2, etc.) with each positive-going clock transition. This feature allow parallel-to-serial converter expansion by typing the Q7 output to the DS input of the succeeding device.

For predictable operation the LOW-to-HIGH transition of CE\ should only take place while CP is HIGH. Also, CP and CE\ should be LOW before the LOW-to-HIGH transition of PL to prevent shifting the data when PL\ goes HIGH.

Qty Price
1-99 $0.258
100-249 $0.176
250-999 $0.135
1,000+ $0.090

Alternative carriers

Part number CD74HC165MT
Package qty | Carrier 250 | SMALL T&R
Inventory 550
Qty | Price (USD) 1ku | $0.314
Part number CD74HC165M
Package qty | Carrier 40 | TUBE
Inventory 4,986
Qty | Price (USD) 1ku | $0.199