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CD4078BE-NG Equivalent & Substitute Parts
Part Overview
The CD4078BE-NG is a CMOS NOR/OR gate configurable logic integrated circuit manufactured by Texas Instruments. This device features 1 circuit with 8 inputs in a 14-pin DIP package and operates across a wide supply voltage range of 3V to 18V. The CD4078BE-NG is classified as an obsolete product, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where through-hole packaging is not a requirement.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | NOR/OR Gate Configurable |
| Number of Circuits | 1 |
| Number of Inputs | 8 |
| Output Type | Single-Ended |
| Current - Output High, Low | 6.8mA, 6.8mA |
| Voltage - Supply | 3V ~ 18V |
| Operating Temperature Range | -55°C ~ 125°C |
| Schmitt Trigger Input | No |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the CD4078BE-NG is determined by strict equivalence across the following electrical and mechanical parameters:
Electrical Equivalence Criteria:
- Logic type must be NOR/OR gate configurable
- Number of circuits: 1
- Number of inputs: 8
- Output type: Single-ended
- Output current specifications: 6.8mA high and low
- Supply voltage range: 3V to 18V
- Operating temperature range: -55°C to 125°C
- Schmitt trigger input: No
Mechanical and Compliance Criteria:
- RoHS3 compliance required
- Manufacturer: Texas Instruments
- Base product number: CD4078
The CD4078BPWR meets all electrical equivalence criteria. The primary difference is the packaging format: the CD4078BE-NG uses through-hole 14-DIP packaging, while the CD4078BPWR uses surface-mount 14-TSSOP packaging. Both devices are manufactured by Texas Instruments and share the same base product number CD4078.
Parameter Comparison
| Parameter | CD4078BE-NG | CD4078BPWR | Match |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Yes |
| Logic Type | NOR/OR Gate | NOR/OR Gate | Yes |
| Number of Circuits | 1 | 1 | Yes |
| Number of Inputs | 8 | 8 | Yes |
| Output Type | Single-Ended | Single-Ended | Yes |
| Current - Output High, Low | 6.8mA, 6.8mA | 6.8mA, 6.8mA | Yes |
| Voltage - Supply | 3V ~ 18V | 3V ~ 18V | Yes |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C | Yes |
| Schmitt Trigger Input | No | No | Yes |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Yes |
| Mounting Type | Through Hole | Surface Mount | No |
| Package / Case | 14-DIP (0.300", 7.62mm) | 14-TSSOP (0.173", 4.40mm Width) | No |
| Product Status | Obsolete | Active | Different |
Engineering Selection Recommendations
The CD4078BPWR is the direct electrical equivalent to the CD4078BE-NG. Both devices are manufactured by Texas Instruments, share identical electrical specifications, and maintain ROHS3 compliance.
Product Status Consideration: The CD4078BE-NG is classified as obsolete, while the CD4078BPWR is active. The active status of the CD4078BPWR ensures continued availability and manufacturing support from Texas Instruments.
Packaging Consideration: Selection between these parts depends on the application's mounting requirements. The CD4078BE-NG requires through-hole PCB assembly, while the CD4078BPWR requires surface-mount assembly. Both packages are industry-standard formats with established supply chains.
Compliance: Both parts meet ROHS3 requirements, ensuring regulatory compliance for applications subject to hazardous substance restrictions.
Frequently Asked Questions (FAQ)
Q: Can the CD4078BPWR directly replace the CD4078BE-NG in an existing circuit?
A: Electrical substitution is direct. The CD4078BPWR provides identical logic function, output current, supply voltage range, and operating temperature specifications. However, the CD4078BPWR uses surface-mount 14-TSSOP packaging while the CD4078BE-NG uses through-hole 14-DIP packaging. PCB layout and assembly process modifications are required.
Q: What are the key electrical parameters that define substitution for the CD4078 series?
A: Substitution is defined by: 8-input NOR/OR gate configuration, single-ended output, 6.8mA output current capability, 3V to 18V supply voltage range, -55°C to 125°C operating temperature, and absence of Schmitt trigger inputs.
Q: Why is the CD4078BE-NG listed as obsolete?
A: Product status reflects Texas Instruments' manufacturing and support decisions. Obsolete designation indicates the part is no longer in active production. The CD4078BPWR remains active and is the recommended alternative for new designs and ongoing support.
Q: Are there any compliance differences between the CD4078BE-NG and CD4078BPWR?
A: Both parts are ROHS3 compliant. The CD4078BPWR includes additional compliance documentation including REACH status (REACH Unaffected), ECCN (EAR99), and HTSUS classification (8542.39.0001).
Q: What is the pin count for both packages?
A: Both the 14-DIP and 14-TSSOP packages contain 14 pins. Pin configuration and functional assignment are identical between the two packages types.
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