Specifications
| Type | Description |
|---|---|
| Part Number | SN74HC165 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Component Type | Other |
| Package Case | SOIC-16 10.00 mm x 6.20 mm; SSOP-16 8.20 mm x 6.50 mm; PDIP-16 6.60 mm x 18.92 mm; SO-16 8.20 mm x 9.90 mm; TSSOP-16 6.60 mm x 5.10 mm |
| Function | 8-bit parallel-load shift register with serial outputs; parallel inputs A-H; serial outputs QH and complementary QH |
| Operating Supply Voltage | 2 to 6 V; recommended operating condition |
| Nominal Supply Voltage | 5 V; recommended operating condition |
| Absolute Maximum Supply Voltage | -0.5 to 7 V; over operating free-air temperature range |
| Input Clamp Current | ±20 mA; VI < 0 V or VI > VCC |
| Output Clamp Current | ±20 mA; VO < 0 V or VO > VCC |
| Continuous Output Current | ±25 mA; VO = 0 V to VCC |
| Continuous Current Through VCC or GND | ±50 mA; absolute maximum rating |
| Storage Temperature | -65 to 150 °C; absolute maximum rating |
| ESD Rating HBM | ±1500 V; human body model per ANSI/ESDA/JEDEC JS-001 |
| High-Level Input Voltage | 1.5 V min; VCC = 2 V |
| High-Level Input Voltage | 3.15 V min; VCC = 4.5 V |
| High-Level Input Voltage | 4.2 V min; VCC = 6 V |
| Low-Level Input Voltage | 0.5 V max; VCC = 2 V |
| Low-Level Input Voltage | 1.35 V max; VCC = 4.5 V |
| Low-Level Input Voltage | 1.8 V max; VCC = 6 V |
| Input Voltage Range | 0 to VCC; recommended operating condition |
| Output Voltage Range | 0 to VCC; recommended operating condition |
| Input Transition Rise and Fall Time | 1000 ns/V max; VCC = 2 V |
| Input Transition Rise and Fall Time | 500 ns/V max; VCC = 4.5 V |
| Input Transition Rise and Fall Time | 400 ns/V max; VCC = 6 V |
| Operating Free-Air Temperature | -40 to 125 °C; SN74HC165 |
| Operating Free-Air Temperature | -55 to 125 °C; SN54HC165 |
| Junction-to-Ambient Thermal Resistance | 73 °C/W; SN74HC165D SOIC package |
| Junction-to-Ambient Thermal Resistance | 82 °C/W; SN74HC165DB SSOP package |
| Junction-to-Ambient Thermal Resistance | 67 °C/W; SN74HC165N DIP package |
| Junction-to-Ambient Thermal Resistance | 64 °C/W; SN74HC165NS SO package |
| Junction-to-Ambient Thermal Resistance | 108 °C/W; SN74HC165PW TSSOP package |
| High-Level Output Voltage | 1.9 V min, 1.998 V typ; TA = 25°C, VCC = 2 V, IOH = -20 µA, VI = VIH or VIL |
| High-Level Output Voltage | 4.4 V min, 4.499 V typ; TA = 25°C, VCC = 4.5 V, IOH = -20 µA, VI = VIH or VIL |
| High-Level Output Voltage | 5.9 V min, 5.999 V typ; TA = 25°C, VCC = 6 V, IOH = -20 µA, VI = VIH or VIL |
| High-Level Output Voltage | 3.98 V min, 4.3 V typ; TA = 25°C, VCC = 4.5 V, IOH = -4 mA |
| High-Level Output Voltage | 5.48 V min, 5.8 V typ; TA = 25°C, VCC = 6 V, IOH = -5.2 mA |
| Low-Level Output Voltage | 0.002 V typ, 0.1 V max; TA = 25°C, VCC = 2 V, IOL = 20 µA, VI = VIH or VIL |
| Low-Level Output Voltage | 0.001 V typ, 0.1 V max; TA = 25°C, VCC = 4.5 V, IOL = 20 µA, VI = VIH or VIL |
| Low-Level Output Voltage | 0.001 V typ, 0.1 V max; TA = 25°C, VCC = 6 V, IOL = 20 µA, VI = VIH or VIL |
| Low-Level Output Voltage | 0.17 V typ, 0.26 V max; TA = 25°C, VCC = 4.5 V, IOL = 4 mA |
| Low-Level Output Voltage | 0.15 V typ, 0.26 V max; TA = 25°C, VCC = 6 V, IOL = 5.2 mA |
| Input Current | ±0.1 µA typ, ±100 nA max; TA = 25°C, VCC = 6 V, VI = VCC or 0 V |
| Supply Current | 8 µA max; TA = 25°C, VCC = 6 V, VI = VCC or 0 V, IO = 0 |
| Input Capacitance | 3 pF typ, 10 pF max; TA = 25°C, VCC = 2 V to 6 V |
| Maximum Clock Frequency | 31 MHz min, 50 MHz typ; TA = 25°C, VCC = 4.5 V, CL = 50 pF |
| Maximum Clock Frequency | 36 MHz min, 62 MHz typ; TA = 25°C, VCC = 6 V, CL = 50 pF |
| Propagation Delay | 15 ns typ, 30 ns max; TA = 25°C, VCC = 4.5 V, CLK to QH or complementary QH, CL = 50 pF |
| Propagation Delay | 13 ns typ, 26 ns max; TA = 25°C, VCC = 6 V, CLK to QH or complementary QH, CL = 50 pF |
| Output Transition Time | 8 ns typ, 15 ns max; TA = 25°C, VCC = 4.5 V, any output, CL = 50 pF |
| Output Transition Time | 6 ns typ, 13 ns max; TA = 25°C, VCC = 6 V, any output, CL = 50 pF |
| Datasheet Status | request_only |
Product Overview
The SN74HC165 is a Texas Instruments 8-bit parallel-load shift register in the Signal_Chain category. It accepts eight parallel inputs, identified as A through H, and provides serial outputs on QH and complementary QH. This structure supports parallel data capture followed by serial output shifting in digital signal paths.
Recommended operation is from 2 to 6 V, with 5 V given as a nominal recommended supply. Logic input thresholds are specified at 2 V, 4.5 V, and 6 V supplies, and both input and output voltage ranges are 0 to VCC. At 25 °C, specified timing includes maximum clock frequency values of 31 MHz minimum and 50 MHz typical at 4.5 V, and 36 MHz minimum and 62 MHz typical at 6 V with 50 pF load.
Package options cover SOIC-16, SSOP-16, PDIP-16, SO-16, and TSSOP-16 footprints. Thermal resistance is package-dependent, ranging from 64 °C/W for the SN74HC165NS SO package to 108 °C/W for the SN74HC165PW TSSOP package.
Key Features
- 8-bit parallel-load shift register with serial outputs
- Parallel inputs A through H
- QH and complementary QH serial outputs
- Recommended 2 to 6 V supply range
- 5 V nominal recommended supply operation
- Input and output ranges from 0 to VCC
- SN74HC165 operates from -40 to 125 °C
- Up to 62 MHz typical clock frequency at 6 V
- 13 ns typical clock-to-output delay at 6 V
- SOIC, SSOP, PDIP, SO, and TSSOP packages
Typical Applications
- Parallel-to-serial digital input capture
- Eight-channel logic signal collection
- Serial output expansion paths
- Clocked digital signal chains
- Microcontroller input expansion
- Complementary serial output interfaces
Procurement Notes
When requesting a quote for SN74HC165, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of device is the SN74HC165?
The SN74HC165 is an 8-bit parallel-load shift register from Texas Instruments. It has parallel inputs A through H and serial outputs QH and complementary QH, allowing parallel input data to be shifted out serially.
What supply voltage range is recommended for SN74HC165?
The recommended operating supply voltage range is 2 to 6 V, with 5 V listed as the nominal recommended supply voltage. The absolute maximum supply voltage range is -0.5 to 7 V.
Which package options are listed for this part?
Listed package options include SOIC-16, SSOP-16, PDIP-16, SO-16, and TSSOP-16. The extracted package dimensions are 10.00 mm x 6.20 mm, 8.20 mm x 6.50 mm, 6.60 mm x 18.92 mm, 8.20 mm x 9.90 mm, and 6.60 mm x 5.10 mm respectively.
What clock frequency is specified at 25 °C?
At 25 °C with a 50 pF load, the maximum clock frequency is specified as 31 MHz minimum and 50 MHz typical at 4.5 V, and 36 MHz minimum and 62 MHz typical at 6 V.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.