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DS42MB100TSQE/NOPB Equivalent & Substitute Parts
Part Overview
The DS42MB100TSQE/NOPB is a Buffer Multiplexer interface IC manufactured by Texas Instruments, designed for high-speed signal routing applications. This 1-channel 1:2/2:1 multiplexer operates at data rates up to 4.25Gbps and is packaged in a 36-WQFN (6x6) form factor with exposed pad. The device features CML input and output with integrated input equalization and output pre-emphasis for signal conditioning.
The DS42MB100TSQE/NOPB carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and field replacement applications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Base Product Number | DS42MB100 |
| Type | Buffer, Multiplexer |
| Number of Channels | 1 x 1:2, 2:1 |
| Data Rate (Max) | 4.25Gbps |
| Input/Output | CML |
| Signal Conditioning | Input Equalization, Output Pre-Emphasis |
| Delay Time | 1.0ns |
| Voltage - Supply | 3.135V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 36-WFQFN Exposed Pad |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the DS42MB100TSQE/NOPB is determined by strict parametric equivalence across the following critical criteria:
- Identical base product number (DS42MB100)
- Matching channel configuration (1 x 1:2, 2:1)
- Identical data rate specification (4.25Gbps maximum)
- Matching signal interface type (CML input and output)
- Identical signal conditioning features (Input Equalization, Output Pre-Emphasis)
- Matching delay time (1.0ns)
- Identical supply voltage range (3.135V ~ 3.465V)
- Identical operating temperature range (-40°C ~ 85°C)
- Identical package type (36-WFQFN Exposed Pad)
- Surface mount mounting type
The DS42MB100TSQ/NOPB qualifies as a parametric equivalent based on full alignment with all electrical and mechanical specifications listed above.
Parameter Comparison
| Parameter | DS42MB100TSQE/NOPB (Main) | DS42MB100TSQ/NOPB (Substitute) |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Base Product Number | DS42MB100 | DS42MB100 |
| Type | Buffer, Multiplexer | Buffer, Multiplexer |
| Number of Channels | 1 x 1:2, 2:1 | 1 x 1:2, 2:1 |
| Data Rate (Max) | 4.25Gbps | 4.25Gbps |
| Input | CML | CML |
| Output | CML | CML |
| Signal Conditioning | Input Equalization, Output Pre-Emphasis | Input Equalization, Output Pre-Emphasis |
| Delay Time | 1.0ns | 1.0ns |
| Voltage - Supply | 3.135V ~ 3.465V | 3.135V ~ 3.465V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Package / Case | 36-WFQFN Exposed Pad | 36-WFQFN Exposed Pad |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
| Packaging Option | Standard | Cut Tape (CT) & Digi-Reel®, Tape & Reel (TR) |
Engineering Selection Recommendations
The DS42MB100TSQ/NOPB is a direct parametric equivalent to the DS42MB100TSQE/NOPB. Both devices share identical electrical specifications, performance characteristics, and physical packaging requirements.
The primary distinction between these parts is product status and packaging availability. The DS42MB100TSQE/NOPB is classified as Obsolete, while the DS42MB100TSQ/NOPB maintains Active status with multiple packaging options (Cut Tape and Tape & Reel formats). The substitute part offers superior long-term availability and supply chain continuity.
Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying equivalent regulatory requirements. The difference in Moisture Sensitivity Level (MSL 2 versus MSL 3) reflects standard industry variation in packaging moisture protection and does not affect functional compatibility or performance in equivalent operating environments.
Frequently Asked Questions (FAQ)
Q: Can DS42MB100TSQ/NOPB be used as a direct replacement for DS42MB100TSQE/NOPB?
A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including data rate, channel configuration, signal conditioning, supply voltage, operating temperature, and package type. Direct substitution is supported without circuit modification.
Q: What is the difference between these two part numbers?
A: The primary differences are product status (Obsolete versus Active) and packaging format. The DS42MB100TSQ/NOPB is available in Cut Tape and Tape & Reel packaging options, providing better availability. The MSL rating differs (2 versus 3), reflecting standard packaging moisture protection variations.
Q: Are there any performance differences between these parts?
A: No. Both parts deliver identical performance specifications: 4.25Gbps data rate, 1.0ns delay time, CML signal interface, input equalization, and output pre-emphasis. Electrical and timing characteristics are equivalent.
Q: Is the 36-WQFN package identical for both parts?
A: Yes. Both parts use the 36-WFQFN Exposed Pad package with identical physical dimensions and pin configuration, enabling direct PCB footprint compatibility.
Q: What packaging options are available for the substitute part?
A: The DS42MB100TSQ/NOPB is available in Cut Tape (CT) and Digi-Reel® format, as well as standard Tape & Reel (TR) packaging, providing flexibility for different procurement and assembly workflows.
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