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74HC165D,652 Equivalent & Substitute Parts
Part Overview
The 74HC165D,652 is an 8-bit parallel-in serial-out shift register manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement.
The 74HC165 series shift register converts parallel input data to serial output format, operating across a 2V to 6V supply voltage range with an operating temperature span of -40°C to 125°C. The obsolete status of the 74HC165D,652 requires engineers to select from active or alternative product variants that maintain electrical and mechanical compatibility.
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 |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 74HC165D,652 is determined by strict equivalence across the following parameters:
- Logic Type: Shift Register (8-bit, 1 element)
- Function: Parallel or Serial to Serial conversion
- Output Type: Complementary
- Supply Voltage Range: 2V ~ 6V
- Package / Case: 16-SOIC surface mount
- Mounting Type: Surface Mount
Substitute parts must maintain identical functional specifications and package dimensions. Operating temperature range variations are permitted where the substitute meets or exceeds the minimum and maximum specifications of the original part. RoHS compliance status and MSL ratings are secondary selection criteria based on application requirements.
Parameter Comparison
| Part Number | Manufacturer | Logic Type | Bits | Function | Supply Voltage | Operating Temp | Package | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|
| 74HC165D,652 | Nexperia USA Inc. | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC (0.154") | Obsolete | ROHS3 Compliant |
| 74HC165D,653 | Nexperia USA Inc. | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC (0.154") | Active | ROHS3 Compliant |
| CD74HC165M | Harris Corporation | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC (0.154") | Obsolete | RoHS Non-Compliant |
| CD74HC165M96 | Texas Instruments | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC (0.154") | Active | ROHS3 Compliant |
| CD74HC165MT | Texas Instruments | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC (0.154") | Discontinued at DiGi Electronics | ROHS3 Compliant |
| MC74HC165ADG | onsemi | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC (0.154") | Active | ROHS3 Compliant |
| MC74HC165ADR2G | onsemi | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -55°C ~ 125°C | 16-SOIC (0.154") | Active | ROHS3 Compliant |
| SN74HC165DR | Texas Instruments | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC (0.154") | Active | ROHS3 Compliant |
| SN74HC165DRG3 | Texas Instruments | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC (0.154") | Active | ROHS3 Compliant |
| SN74HC165DT | Texas Instruments | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC (0.154") | Discontinued at DiGi Electronics | ROHS3 Compliant |
| SN74HC165NSR | Texas Instruments | Shift Register | 8 | Parallel or Serial to Serial | 2V ~ 6V | -40°C ~ 125°C | 16-SOIC (0.209") | Active | ROHS3 Compliant |
Engineering Selection Recommendations
For applications requiring direct replacement of the obsolete 74HC165D,652, the following selection criteria apply:
Primary Recommendation: 74HC165D,653 This Nexperia part maintains identical electrical specifications and package dimensions as the original 74HC165D,652. Active product status ensures long-term availability. ROHS3 compliance matches the original specification.
Alternative Selections (Active Status):
- MC74HC165ADR2G (onsemi): Highest inventory availability (305,100 pcs). Active status with ROHS3 compliance. Extended operating temperature range (-55°C to 125°C) provides additional margin.
- SN74HC165DR (Texas Instruments): Active status with ROHS3 compliance. Operating temperature range matches original specification (-40°C to 125°C).
- SN74HC165DRG3 (Texas Instruments): Active status with ROHS3 compliance. Tape & Reel packaging option.
- CD74HC165M96 (Texas Instruments): Active status with ROHS3 compliance. Extended operating temperature range (-55°C to 125°C).
Secondary Alternatives (Discontinued or Obsolete Status):
- CD74HC165MT: Discontinued at DiGi Electronics. Use only if existing inventory is available.
- SN74HC165DT: Discontinued at DiGi Electronics. Use only if existing inventory is available.
- CD74HC165M: Obsolete status with RoHS non-compliance. Not recommended for new designs.
Package Consideration: SN74HC165NSR uses a 16-SOIC package with 0.209" width, differing from the standard 0.154" width of other variants. This part is suitable only if PCB layout accommodates the wider package footprint.
Frequently Asked Questions (FAQ)
Q: Can I use any 74HC165 variant as a direct replacement for the 74HC165D,652? A: No. Direct substitution requires matching the 16-SOIC (0.154" width) package and identical electrical specifications. SN74HC165NSR uses a wider 16-SOIC (0.209") package and is not a direct PCB replacement without layout modification.
Q: What is the difference between the various Texas Instruments part numbers (SN74HC165DR, SN74HC165DRG3, SN74HC165DT)? A: These parts share identical electrical specifications and package dimensions. The suffix designates packaging format: DR indicates Cut Tape & Digi-Reel, DRG3 indicates Tape & Reel, and DT indicates Tape & Reel. Selection depends on procurement and assembly requirements.
Q: Does the extended operating temperature range (-55°C to 125°C) of onsemi and some Texas Instruments variants affect compatibility? A: No. An extended operating temperature range is a superset of the original specification (-40°C to 125°C) and does not affect functional compatibility. These parts are fully compatible with designs specified for the original temperature range.
Q: Is RoHS compliance a substitution requirement? A: RoHS compliance is a regulatory and procurement consideration, not a functional substitution criterion. All recommended active alternatives maintain ROHS3 compliance matching the original part. CD74HC165M is RoHS non-compliant and should not be used in new designs subject to RoHS regulations.
Q: What inventory considerations should guide my selection? A: MC74HC165ADR2G offers the highest inventory availability (305,100 pcs), followed by SN74HC165NSR (108,719 pcs). For immediate procurement, 74HC165D,653 (351,671 pcs) from the original manufacturer provides the most direct replacement path.
Q: Can I substitute parts with different packaging formats (Cut Tape vs. Tape & Reel)? A: Yes, provided the component package and electrical specifications remain identical. Packaging format affects procurement and assembly logistics but not electrical or mechanical compatibility on the PCB.
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