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SA56004AD,112 Temperature Sensor - Equivalent & Substitute Parts
Part Overview
The SA56004AD,112 is a digital temperature sensor manufactured by NXP Semiconductors designed for local and remote temperature monitoring across the -40°C to 125°C range. This component features I2C/SMBus output, 10-bit resolution, and programmable limit functionality in an 8-SOIC surface mount package. The part is currently obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.
Substiute Parts
Key Parameters
| Parameter | SA56004AD,112 |
|---|---|
| Manufacturer | NXP Semiconductors |
| Sensor Type | Digital, Local/Remote |
| Sensing Temperature Range | -40°C ~ 125°C |
| Output Type | I2C/SMBus |
| Supply Voltage | 3V ~ 5.5V |
| Resolution | 10 bits |
| Accuracy | ±2°C (60°C ~ 100°C), ±3°C (-40°C ~ 125°C) |
| Package | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution for the SA56004AD,112 is determined by the following critical parameters:
- Package Compatibility: All substitutes must use 8-SOIC (0.154", 3.90mm Width) surface mount packaging
- Communication Protocol: I2C/SMBus interface required for direct firmware compatibility
- Temperature Range: Local and remote sensing capability across -40°C to 125°C minimum
- Resolution: 10-bit or higher resolution to maintain measurement precision
- Supply Voltage: 3V to 5.5V operating range or compatible subset
- Accuracy: ±2°C to ±3°C accuracy class within specified temperature bands
- Regulatory Compliance: ROHS3 compliance and EAR99 classification
Substitute parts are grouped into two categories based on these parameters: direct pin-compatible replacements from Texas Instruments (TMP411 series) and functionally equivalent alternatives (LM86/LM89 series and LM95245 series).
Parameter Comparison
| Parameter | SA56004AD,112 | TMP411ADR | TMP411BDR | TMP411CDR | LM86CIMX/NOPB | LM89CIMX/NOPB | LM95245CIMX/NOPB |
|---|---|---|---|---|---|---|---|
| Manufacturer | NXP | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | National Semiconductor | Texas Instruments |
| Sensor Type | Digital, Local/Remote | Digital, Local/Remote | Digital, Local/Remote | Digital, Local/Remote | Digital, Local/Remote | Digital, Local/Remote | Digital, Local/Remote |
| Local Sensing Temperature | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | -40°C ~ 125°C | 0°C ~ 85°C | 0°C ~ 85°C | -40°C ~ 85°C |
| Remote Sensing Temperature | -40°C ~ 125°C | -64°C ~ 191°C | -64°C ~ 191°C | -64°C ~ 191°C | 0°C ~ 85°C | 0°C ~ 85°C | -40°C ~ 85°C |
| Output Type | I2C/SMBus | I2C/SMBus | I2C/SMBus | I2C/SMBus | SMBus | SMBus | SMBus |
| Supply Voltage | 3V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 3V ~ 3.6V | 3V ~ 3.6V | 3V ~ 3.6V |
| Local Resolution | 10 bits | 11 bits | 11 bits | 11 bits | 7 bits | 7 bits | 10 bits |
| Remote Resolution | 10 bits | 11 bits | 11 bits | 11 bits | 10 bits | 10 bits | 12 bits |
| Accuracy (Best Case) | ±2°C | ±1°C | ±1°C | ±1°C | ±3°C | ±3°C | ±2°C |
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Operating Temperature | -40°C ~ 125°C | -55°C ~ 127°C | -55°C ~ 127°C | -55°C ~ 127°C | 0°C ~ 125°C | 0°C ~ 125°C | -40°C ~ 125°C |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Primary Substitutes (TMP411 Series)
The TMP411ADR, TMP411BDR, and TMP411CDR from Texas Instruments are the recommended primary substitutes. These parts maintain I2C/SMBus protocol compatibility, 8-SOIC packaging, and extended temperature range coverage (-40°C to 125°C local sensing). The TMP411 series offers superior accuracy (±1°C best case) and higher resolution (11 bits) compared to the SA56004AD,112. All variants are ROHS3 compliant and REACH unaffected. TMP411ADR and TMP411CDR are currently in active production status with substantial inventory availability.
Secondary Substitutes (LM86/LM89 Series)
The LM86CIMX/NOPB and LM89CIMX/NOPB are functionally equivalent alternatives with SMBus compatibility. These parts are suitable for applications where the local sensing temperature range is limited to 0°C to 85°C. Both maintain 8-SOIC packaging and ROHS3 compliance. The LM89CIMX/NOPB is sourced from National Semiconductor and offers higher inventory availability (3550 pcs).
Extended Range Alternative (LM95245CIMX/NOPB)
The LM95245CIMX/NOPB from Texas Instruments provides extended remote sensing capability (-40°C to 85°C) with superior remote resolution (12 bits). This part is suitable for applications requiring enhanced measurement precision in remote temperature monitoring. It maintains 8-SOIC packaging, SMBus protocol, and ROHS3 compliance with active production status.
All substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes, matching the regulatory profile of the original SA56004AD,112.
Frequently Asked Questions (FAQ)
Q: Can TMP411 series parts directly replace SA56004AD,112 without firmware modification?
A: TMP411 series parts maintain I2C/SMBus protocol compatibility and 8-SOIC packaging. However, register mapping and command structures may differ. Firmware validation is required to confirm compatibility with existing driver implementations.
Q: What is the key difference between TMP411ADR, TMP411BDR, and TMP411CDR?
A: These variants differ in packaging format only. TMP411ADR uses Tube packaging, TMP411BDR uses Tape & Reel, and TMP411CDR uses Tape & Reel. All three share identical electrical specifications and are functionally interchangeable.
Q: Why do LM86CIMX/NOPB and LM89CIMX/NOPB have lower local sensing temperature range?
A: The LM86 and LM89 series are designed for 0°C to 85°C local sensing applications. Applications requiring -40°C to 125°C coverage should use TMP411 series or LM95245CIMX/NOPB alternatives.
Q: Is the LM95245CIMX/NOPB suitable for all SA56004AD,112 applications?
A: The LM95245CIMX/NOPB supports -40°C to 85°C local sensing and -40°C to 85°C remote sensing, which is narrower than the SA56004AD,112 range (-40°C to 125°C). Verify application temperature requirements before selection.
Q: What is the moisture sensitivity level difference between SA56004AD,112 and TMP411 series?
A: SA56004AD,112 has MSL 1 (Unlimited), while TMP411 series has MSL 2 (1 Year). This affects storage and handling requirements. TMP411 parts require controlled humidity storage conditions.
Q: Are all substitute parts available in the same packaging options?
A: All substitute parts use 8-SOIC surface mount packaging. Packaging format options (Tube, Cut Tape, Tape & Reel) vary by part number. Verify specific packaging requirements for production processes.
Q: What supply voltage range is compatible across all substitutes?
A: The common supply voltage range across all substitutes is 3V to 3.6V. The SA56004AD,112 and TMP411 series support extended range to 5.5V. Verify system supply voltage specifications before selection.
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