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SN74LVC157APWRE4 Equivalent & Substitute Parts
Part Overview
The SN74LVC157APWRE4 is a 4 x 2:1 multiplexer logic integrated circuit manufactured by Texas Instruments in a 16-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The device operates as a single-supply multiplexer with output currents of 24mA (high and low) and supports supply voltages from 2V to 3.6V across an operating temperature range of -40°C to 85°C.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Type | Multiplexer 4 x 2:1 |
| Circuit Configuration | 4 x 2:1 |
| Independent Circuits | 1 |
| Current - Output High | 24mA |
| Current - Output Low | 24mA |
| Voltage Supply Source | Single Supply |
| Voltage - Supply | 2V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution for the SN74LVC157APWRE4 is determined by strict equivalence across the following parameters: multiplexer circuit configuration (4 x 2:1), output current specifications (24mA high and low), single supply voltage operation, supply voltage range (2V ~ 3.6V minimum), operating temperature range (-40°C ~ 85°C minimum), 16-TSSOP package, and RoHS3 compliance. Parts are grouped into three categories based on manufacturer and product status: Texas Instruments parametric equivalents (same base part number 74LVC157 with different packaging codes), manufacturer-recommended alternatives from Nexperia USA Inc. (74LVC157 series with extended voltage and temperature ranges), and cross-manufacturer equivalents from onsemi and Fairchild Semiconductor (74LCX series with identical electrical specifications).
Parameter Comparison
| Part Number | Manufacturer | Series | Circuit | Output Current (mA) | Supply Voltage (V) | Temp Range (°C) | Package | Product Status | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| SN74LVC157APWRE4 | Texas Instruments | 74LVC | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Discontinued | - |
| SN74LVC157APWR | Texas Instruments | 74LVC | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Active | Cut Tape & Digi-Reel |
| SN74LVC157APWRG4 | Texas Instruments | 74LVC | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Discontinued | - |
| SN74LVC157APWT | Texas Instruments | 74LVC | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Active | Tape & Reel |
| 74LVC157APW,118 | Nexperia USA Inc. | 74LVC | 4 x 2:1 | 24 / 24 | 1.2 ~ 3.6 | -40 ~ 125 | 16-TSSOP | Active | Tape & Reel |
| 74LVC157APW-Q100J | Nexperia USA Inc. | 74LVC | 4 x 2:1 | 24 / 24 | 1.2 ~ 3.6 | -40 ~ 125 | 16-TSSOP | Active | Tape & Reel |
| MC74LCX157DTG | onsemi | 74LCX | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Obsolete | Tube |
| 74LCX157MTCX | onsemi | 74LCX | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Active | Cut Tape & Digi-Reel |
| 74LCX257MTCX | Fairchild Semiconductor | 74LCX | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Active | Bulk |
| MC74LCX157DTR2G | onsemi | 74LCX | 4 x 2:1 | 24 / 24 | 2.0 ~ 3.6 | -40 ~ 85 | 16-TSSOP | Active | Tape & Reel |
Engineering Selection Recommendations
For direct replacement of the discontinued SN74LVC157APWRE4, the SN74LVC157APWR from Texas Instruments is the primary choice, offering identical electrical specifications with active product status and standard Cut Tape & Digi-Reel packaging. The SN74LVC157APWT provides the same specifications in Tape & Reel format for high-volume applications.
The Nexperia USA Inc. parts 74LVC157APW,118 and 74LVC157APW-Q100J are manufacturer-recommended alternatives with extended supply voltage range (1.2V ~ 3.6V) and operating temperature range (-40°C ~ 125°C), providing enhanced performance margins. The 74LVC157APW-Q100J includes AEC-Q100 automotive qualification for applications requiring automotive-grade components.
Cross-manufacturer equivalents from onsemi (74LCX157MTCX and MC74LCX157DTR2G) and Fairchild Semiconductor (74LCX257MTCX) maintain identical electrical and package specifications. The 74LCX157MTCX offers the highest inventory availability (22,989 pcs) with active product status. The MC74LCX157DTG from onsemi is obsolete and should be avoided for new designs.
All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.
Frequently Asked Questions (FAQ)
Q: Can I use SN74LVC157APWR as a direct replacement for SN74LVC157APWRE4?
A: Yes. Both parts share identical electrical specifications: 4 x 2:1 multiplexer configuration, 24mA output current, 2V ~ 3.6V supply voltage, -40°C ~ 85°C operating temperature, and 16-TSSOP package. The primary difference is packaging format (Cut Tape & Digi-Reel versus the original format) and product status (Active versus Discontinued).
Q: What is the difference between the Texas Instruments 74LVC series and the onsemi 74LCX series?
A: Both series provide identical electrical performance for this multiplexer function: 4 x 2:1 circuit, 24mA output current, 2V ~ 3.6V supply voltage, and -40°C ~ 85°C operating temperature in 16-TSSOP packages. The primary differences are manufacturer, product lifecycle status, and packaging availability. The 74LCX series from onsemi offers higher inventory levels.
Q: Are the Nexperia parts 74LVC157APW,118 and 74LVC157APW-Q100J compatible with my design?
A: Both Nexperia parts are electrically compatible and provide enhanced specifications: extended supply voltage range (1.2V ~ 3.6V) and extended operating temperature range (-40°C ~ 125°C). These wider ranges ensure compatibility with the original SN74LVC157APWRE4 specifications. The 74LVC157APW-Q100J includes AEC-Q100 automotive qualification if required.
Q: What packaging options are available for substitutes?
A: Substitute parts are available in multiple packaging formats: Cut Tape & Digi-Reel (SN74LVC157APWR, 74LCX157MTCX), Tape & Reel (SN74LVC157APWT, 74LVC157APW,118, 74LVC157APW-Q100J, MC74LCX157DTR2G), Tube (MC74LCX157DTG), and Bulk (74LCX257MTCX). Select packaging based on procurement volume and assembly requirements.
Q: Why is MC74LCX157DTG listed as obsolete?
A: MC74LCX157DTG has been discontinued by onsemi and is not recommended for new designs. Active alternatives with identical specifications are available from onsemi (74LCX157MTCX, MC74LCX157DTR2G) and other manufacturers.
Q: Do all substitute parts meet RoHS3 compliance?
A: All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with standard manufacturing processes and storage conditions.
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