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SN74HC165QPWREP Equivalent & Substitute Parts
Part Overview
The SN74HC165QPWREP is an 8-bit parallel-in/serial-out shift register manufactured by Texas Instruments in a 16-TSSOP surface mount package. This component is classified as Last Time Buy, indicating limited availability of the original part number. The shift register function converts parallel data inputs to serial output format, operating across a 2V to 6V supply voltage range with an operating temperature range of -40°C to 125°C. Identifying equivalent and substitute parts is necessary due to the Last Time Buy status and to ensure design flexibility for procurement and production planning.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Shift Register |
| Number of Elements | 1 |
| Number of Bits per Element | 8 |
| Function | Parallel or Serial to Serial |
| Output Type | Complementary |
| Voltage - Supply | 2V ~ 6V |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the SN74HC165QPWREP is determined by strict adherence to the following parameters: Logic Type (Shift Register), Number of Bits per Element (8), Function (Parallel or Serial to Serial), Output Type (Complementary), Voltage Supply Range (2V ~ 6V), Operating Temperature Range (-40°C ~ 125°C), Package Type (16-TSSOP), and Mounting Type (Surface Mount). All substitute parts listed maintain these core electrical and mechanical specifications. Variations in packaging format (Tape & Reel versus Cut Tape), product status, manufacturer, and optional automotive qualifications do not affect functional equivalence within the specified parameter set.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Logic Type | Bits per Element | Output Type | Voltage Supply | Operating Temp | Package | Product Status | Packaging Format |
|---|---|---|---|---|---|---|---|---|---|
| SN74HC165QPWREP | Texas Instruments | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Last Time Buy | Tape & Reel (TR) |
| SN74HC165BMPWREP | Texas Instruments | Shift Register | 8 | Complementary, Push-Pull | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Tape & Reel (TR) |
| SN74HC165PWR | Texas Instruments | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Cut Tape (CT) & Digi-Reel® |
| SN74HC165PWRG3 | Texas Instruments | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Tape & Reel (TR) |
| SN74HC165QPWRG4Q1 | Texas Instruments | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Tape & Reel (TR) |
| SN74HC165QPWRQ1 | Texas Instruments | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Cut Tape (CT) & Digi-Reel® |
| MC74HC165ADTR2G | onsemi | Shift Register | 8 | Complementary | 2V ~ 6V | -55°C ~ 125°C | 16-TSSOP | Active | Cut Tape (CT) & Digi-Reel® |
| NLV74HC165ADTR2G | onsemi | Shift Register | 8 | Complementary | 2V ~ 6V | -55°C ~ 125°C | 16-TSSOP | Obsolete | Tape & Reel (TR) |
| 74HC165PW,112 | NXP Semiconductors | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Not specified |
| 74HC165PW,118 | Nexperia USA Inc. | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Cut Tape (CT) & Digi-Reel® |
| 74HC165PW-Q100,118 | Nexperia USA Inc. | Shift Register | 8 | Complementary | 2V ~ 6V | -40°C ~ 125°C | 16-TSSOP | Active | Tape & Reel (TR) |
Engineering Selection Recommendations
For applications requiring immediate procurement, Texas Instruments parts with Active product status are preferred: SN74HC165BMPWREP, SN74HC165PWR, SN74HC165PWRG3, SN74HC165QPWRG4Q1, and SN74HC165QPWRQ1. These parts maintain full electrical and mechanical compatibility with the original SN74HC165QPWREP.
For automotive applications requiring AEC-Q100 qualification, select SN74HC165QPWRG4Q1, SN74HC165QPWRQ1, or 74HC165PW-Q100,118. The onsemi MC74HC165ADTR2G provides an extended operating temperature range (-55°C to 125°C) compared to the standard -40°C to 125°C specification, suitable for applications requiring enhanced low-temperature performance.
NXP Semiconductors 74HC165PW,112 and Nexperia USA Inc. variants (74HC165PW,118 and 74HC165PW-Q100,118) are functionally equivalent alternatives from different manufacturers. The NLV74HC165ADTR2G from onsemi carries Obsolete status and should not be selected for new designs.
Packaging format selection depends on procurement workflow: Tape & Reel (TR) for high-volume automated assembly, or Cut Tape (CT) & Digi-Reel® for lower-volume or mixed-component orders.
Frequently Asked Questions (FAQ)
Q: Can I substitute SN74HC165QPWREP with any of the listed parts without circuit modification?
A: Yes. All listed substitute parts maintain identical Logic Type (Shift Register), bit width (8-bit), function (Parallel or Serial to Serial), output type (Complementary), supply voltage range (2V ~ 6V), operating temperature range (-40°C ~ 125°C minimum), and 16-TSSOP package specification. No circuit modifications are required for functional equivalence.
Q: What is the difference between Tape & Reel and Cut Tape packaging?
A: Tape & Reel (TR) packaging is used for high-volume automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® is used for lower-volume orders or when mixed component types are required. Both formats contain identical components; the difference is in the delivery and handling format only.
Q: Why does MC74HC165ADTR2G have a different operating temperature range?
A: The MC74HC165ADTR2G from onsemi specifies -55°C to 125°C, compared to the standard -40°C to 125°C. This extended low-temperature specification provides additional margin for applications operating in extreme cold environments. The part remains functionally equivalent for standard -40°C to 125°C applications.
Q: Are automotive-qualified parts (AEC-Q100) required for my application?
A: AEC-Q100 qualification is required only for automotive applications. For general industrial or consumer applications, non-qualified parts are functionally equivalent. Automotive-qualified variants include SN74HC165QPWRG4Q1, SN74HC165QPWRQ1, NLV74HC165ADTR2G, and 74HC165PW-Q100,118.
Q: Why is NLV74HC165ADTR2G listed if it is Obsolete?
A: NLV74HC165ADTR2G is included for reference only to document historical equivalence relationships. This part should not be selected for new designs due to its Obsolete status. Active alternatives from onsemi include MC74HC165ADTR2G.
Q: What does ROHS3 Compliant mean?
A: ROHS3 Compliant indicates the part meets Restriction of Hazardous Substances Directive 3 requirements, restricting the use of specific hazardous materials in electrical and electronic equipment. All listed parts maintain ROHS3 compliance.
Q: Can I use parts from different manufacturers interchangeably?
A: Yes. All listed parts from Texas Instruments, onsemi, NXP Semiconductors, and Nexperia USA Inc. maintain identical electrical specifications and 16-TSSOP package dimensions. Interchangeability is based on the core parameters: Logic Type, bit width, function, output type, voltage supply, operating temperature, and package specification.
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