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74HC139D,652 Equivalent & Substitute Parts
Part Overview
The 74HC139D,652 is a decoder/demultiplexer logic integrated circuit manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This component performs 1 x 2:4 decoding/demultiplexing functions with dual independent circuits, operating from a single supply voltage between 2V and 6V. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74HC139D,652 |
| Manufacturer | Nexperia USA Inc. |
| Series | 74HC |
| Type | Decoder/Demultiplexer |
| Circuit Configuration | 1 x 2:4 |
| Independent Circuits | 2 |
| Current - Output High, Low | 5.2mA, 5.2mA |
| Voltage Supply | 2V ~ 6V (Single Supply) |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the 74HC139D,652 is determined by the following critical parameters:
- Base product number (74HC139) ensuring identical logic function
- Circuit configuration (1 x 2:4 decoder/demultiplexer with 2 independent circuits)
- Output current specifications (5.2mA high and low)
- Supply voltage range (2V ~ 6V)
- Package type (16-SOIC with 0.154" width)
- Surface mount mounting type
Substitute parts are grouped into three categories based on product status and compliance:
Direct Manufacturer Substitute: Parts with active product status and automotive-grade qualification (AEC-Q100).
Upgrade Substitutes: Parts with active product status, extended temperature range (-55°C ~ 125°C), and full RoHS3 compliance.
Similar Substitutes: Parts meeting all electrical and mechanical parameters with variations in product status, packaging format, or temperature range.
Parameter Comparison
| Part Number | Manufacturer | Circuit Config | Output Current (mA) | Supply Voltage | Temp Range (°C) | Package | Product Status | RoHS3 |
|---|---|---|---|---|---|---|---|---|
| 74HC139D,652 | Nexperia USA Inc. | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 125 | 16-SOIC (0.154") | Obsolete | Yes |
| SN74HC139QDRG4Q1 | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 125 | 16-SOIC (0.154") | Active | Yes |
| CD74HC139M96 | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -55 ~ 125 | 16-SOIC (0.154") | Active | Yes |
| MC74HC139ADR2G | onsemi | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -55 ~ 125 | 16-SOIC (0.154") | Active | Yes |
| MC74HC139ADG | onsemi | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -55 ~ 125 | 16-SOIC (0.154") | Obsolete | Yes |
| SN74HC139D | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 85 | 16-SOIC (0.154") | Discontinued | Yes |
| SN74HC139DR | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 85 | 16-SOIC (0.154") | Active | Yes |
| SN74HC139DT | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 85 | 16-SOIC (0.154") | Discontinued | Yes |
| SN74HC139NSR | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 85 | 16-SOIC (0.209") | Active | Yes |
| SN74HC139QDRQ1 | Texas Instruments | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -40 ~ 125 | 16-SOIC (0.154") | Active | Yes |
| CD74HC139M | Harris Corporation | 1 x 2:4 | 5.2 / 5.2 | 2V ~ 6V | -55 ~ 125 | 16-SOIC (0.154") | Obsolete | No |
Engineering Selection Recommendations
For applications requiring the 74HC139D,652 decoder/demultiplexer function, the following selection criteria apply:
Primary Recommendation: SN74HC139QDRG4Q1 or SN74HC139QDRQ1 (Texas Instruments) are preferred substitutes. Both parts maintain identical electrical specifications, package dimensions, and operating temperature range (-40°C ~ 125°C). Both carry active product status and AEC-Q100 automotive qualification with full RoHS3 compliance. These parts are available in Tape & Reel packaging suitable for automated assembly.
Extended Temperature Alternative: CD74HC139M96 (Texas Instruments) or MC74HC139ADR2G (onsemi) provide extended operating temperature range (-55°C ~ 125°C) while maintaining all other electrical and mechanical parameters. Both are active products with RoHS3 compliance and Tape & Reel packaging.
Standard Temperature Alternative: SN74HC139DR (Texas Instruments) operates within -40°C ~ 85°C temperature range with active product status and RoHS3 compliance. This part is suitable for applications not requiring the extended upper temperature limit of the original part.
Packaging Consideration: SN74HC139NSR uses a wider 16-SOIC package (0.209" width) compared to the standard 0.154" width. This part is suitable only if PCB layout accommodates the larger package footprint.
Avoid: CD74HC139M (Harris Corporation) is not RoHS3 compliant and carries obsolete product status. MC74HC139ADG (onsemi) is obsolete. SN74HC139D and SN74HC139DT are discontinued at DiGi Electronics.
Frequently Asked Questions (FAQ)
Q: Can I use SN74HC139NSR as a direct replacement for 74HC139D,652?
A: SN74HC139NSR is electrically equivalent but uses a wider 16-SOIC package (0.209" width versus 0.154"). Direct PCB substitution is not possible without layout modification. Use only if your PCB design accommodates the larger package footprint.
Q: What is the difference between SN74HC139QDRG4Q1 and CD74HC139M96?
A: Both are active products with RoHS3 compliance. SN74HC139QDRG4Q1 operates -40°C ~ 125°C, while CD74HC139M96 extends to -55°C ~ 125°C. Select CD74HC139M96 for applications requiring the lower temperature specification.
Q: Is the 74HC139D,652 truly obsolete?
A: Yes, the 74HC139D,652 is classified as obsolete. Multiple active equivalent parts are available from Texas Instruments and onsemi with identical or superior specifications.
Q: Do all substitute parts have the same output current specifications?
A: Yes. All listed substitutes maintain 5.2mA output current for both high and low states, matching the original 74HC139D,652 specification.
Q: Which substitute part has the best long-term availability?
A: SN74HC139DR and SN74HC139QDRQ1 (Texas Instruments) carry active product status with the highest inventory levels, ensuring long-term availability and supply chain stability.
Q: Can I use parts with different temperature ranges interchangeably?
A: Temperature range substitution depends on your application requirements. If your design operates within -40°C ~ 85°C, any substitute with that range or wider is acceptable. For applications requiring -55°C operation, select CD74HC139M96 or MC74HC139ADR2G.
Q: Are all substitutes RoHS3 compliant?
A: All recommended substitutes except CD74HC139M are RoHS3 compliant. CD74HC139M is RoHS non-compliant and should not be used in new designs requiring RoHS compliance.
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