SA56004CD,112 Temperature Sensor - Equivalent & Substitute Parts

Part Overview

The SA56004CD,112 is a digital temperature sensor manufactured by NXP USA Inc. 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.

Key Parameters

Parameter	SA56004CD,112
Manufacturer	NXP USA Inc.
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 eligibility for the SA56004CD,112 is determined by the following critical parameters:

Primary Compatibility Criteria:

Package type: 8-SOIC form factor (0.154", 3.90mm Width)
Communication protocol: I2C/SMBus interface
Sensor configuration: Digital, Local/Remote temperature sensing
Supply voltage range: Minimum 3V operation capability
Temperature range coverage: Ability to operate across -40°C to 125°C

Substitution Groups:

Group 1 - Direct Temperature Range Match (-40°C to 125°C): TMP411 series parts (TMP411AD, TMP411ADR, TMP411BD, TMP411BDR, TMP411CD, TMP411CDR) provide identical temperature sensing range with enhanced 11-bit resolution and extended remote sensing capability (-64°C ~ 191°C). These parts maintain I2C/SMBus compatibility and 8-SOIC packaging.

Group 2 - Reduced Temperature Range (0°C to 85°C Local): LM86 and LM89 series parts (LM86CIM/NOPB, LM86CIMX/NOPB, LM89CIMX/NOPB) operate within a narrower local temperature range but maintain SMBus protocol, 8-SOIC packaging, and dual local/remote sensing. These are suitable for applications not requiring full -40°C to 125°C coverage.

Group 3 - Extended Resolution with Partial Range (-40°C to 85°C Local): LM95245CIMX/NOPB provides 10-bit local resolution with extended 12-bit remote resolution, operating from -40°C to 85°C locally, with SMBus interface and 8-SOIC packaging.

Parameter Comparison

Part Number	Manufacturer	Sensor Type	Local Temp Range	Remote Temp Range	Output Type	Supply Voltage	Resolution	Accuracy	Package	Status
SA56004CD,112	NXP USA Inc.	Digital, Local/Remote	-40°C ~ 125°C	-40°C ~ 125°C	I2C/SMBus	3V ~ 5.5V	10 b	±2°C / ±3°C	8-SOIC	Obsolete
TMP411ADR	Texas Instruments	Digital, Local/Remote	-40°C ~ 125°C	-64°C ~ 191°C	I2C/SMBus	2.7V ~ 5.5V	11 b	±1°C / ±2.5°C	8-SOIC	Active
TMP411BDR	Texas Instruments	Digital, Local/Remote	-40°C ~ 125°C	-64°C ~ 191°C	I2C/SMBus	2.7V ~ 5.5V	11 b	±1°C / ±2.5°C	8-SOIC	Active
TMP411CDR	Texas Instruments	Digital, Local/Remote	-40°C ~ 125°C	-64°C ~ 191°C	I2C/SMBus	2.7V ~ 5.5V	11 b	±1°C / ±2.5°C	8-SOIC	Active
LM86CIM/NOPB	National Semiconductor	Digital, Local/Remote	0°C ~ 85°C	0°C ~ 85°C	SMBus	3V ~ 3.6V	7 b (Local), 10 b (Remote)	±3°C	8-SOIC	Active
LM86CIMX/NOPB	Texas Instruments	Digital, Local/Remote	0°C ~ 85°C	0°C ~ 85°C	SMBus	3V ~ 3.6V	7 b (Local), 10 b (Remote)	±3°C	8-SOIC	Active
LM89CIMX/NOPB	National Semiconductor	Digital, Local/Remote	0°C ~ 85°C	0°C ~ 85°C	SMBus	3V ~ 3.6V	7 b (Local), 10 b (Remote)	±3°C	8-SOIC	Active
LM95245CIMX/NOPB	Texas Instruments	Digital, Local/Remote	-40°C ~ 85°C	-40°C ~ 85°C	SMBus	3V ~ 3.6V	10 b (Local), 12 b (Remote)	±2°C / ±6°C	8-SOIC	Active

Engineering Selection Recommendations

For Full Temperature Range Replacement (-40°C to 125°C):

The TMP411 series (TMP411ADR, TMP411BDR, TMP411CDR) represents the primary substitution path for SA56004CD,112. These parts maintain identical local and remote temperature sensing ranges, preserve I2C/SMBus protocol compatibility, and are available in active product status. TMP411ADR, TMP411BDR, and TMP411CDR are all ROHS3 compliant and carry identical electrical specifications. Selection between these variants depends on packaging requirements: TMP411ADR uses Cut Tape & Digi-Reel packaging, TMP411BDR uses Tape & Reel, and TMP411CDR uses Tape & Reel. All three are suitable for production environments.

For Reduced Temperature Range Applications (0°C to 85°C):

LM86CIMX/NOPB and LM89CIMX/NOPB provide active alternatives when application requirements do not extend below 0°C or above 85°C. Both maintain SMBus protocol and 8-SOIC packaging. LM86CIMX/NOPB is sourced from Texas Instruments with higher inventory availability (3199 units), while LM89CIMX/NOPB is sourced from National Semiconductor (3550 units). Supply voltage is limited to 3V ~ 3.6V, requiring verification against original 3V ~ 5.5V specification.

For Extended Resolution with Partial Range (-40°C to 85°C):

LM95245CIMX/NOPB offers 12-bit remote resolution with -40°C lower temperature bound, suitable for applications requiring enhanced precision within the -40°C to 85°C window. This part operates on 3V ~ 3.6V supply voltage and is ROHS3 compliant.

All recommended substitutes are ROHS3 compliant and REACH unaffected, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can TMP411 series parts directly replace SA56004CD,112 without firmware changes?

A: TMP411 series parts maintain I2C/SMBus protocol compatibility and identical 8-SOIC packaging. However, TMP411 devices offer 11-bit resolution compared to SA56004CD,112's 10-bit resolution, and feature programmable resolution capability. Register maps and command structures should be verified against application firmware to ensure compatibility.

Q: What is the key difference between TMP411ADR, TMP411BDR, and TMP411CDR?

A: These three variants are electrically identical but differ in packaging format. TMP411ADR is supplied in Cut Tape & Digi-Reel format, TMP411BDR in Tape & Reel format, and TMP411CDR in Tape & Reel format. Selection depends on assembly line requirements and inventory management preferences.

Q: Why do LM86 and LM89 series parts have reduced temperature range?

A: LM86 and LM89 series are designed for 0°C to 85°C local temperature sensing applications. These parts are not suitable for designs requiring -40°C lower temperature operation. Verify application temperature requirements before selecting these alternatives.

Q: Can LM86CIMX/NOPB operate at 5V supply voltage?

A: No. LM86CIMX/NOPB operates within 3V ~ 3.6V supply voltage range, compared to SA56004CD,112's 3V ~ 5.5V range. Applications requiring 5V operation must use TMP411 series parts, which support 2.7V ~ 5.5V.

Q: What is the accuracy difference between SA56004CD,112 and TMP411 series?

A: SA56004CD,112 provides ±2°C accuracy in the 60°C ~ 100°C range and ±3°C across -40°C ~ 125°C. TMP411 series offers superior ±1°C accuracy in the 15°C ~ 85°C range and ±2.5°C across -40°C ~ 125°C, representing improved measurement precision.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts (TMP411 series, LM86 series, LM89 series, and LM95245CIMX/NOPB) are ROHS3 compliant and REACH unaffected, matching SA56004CD,112's regulatory compliance status.

Q: Which substitute offers the best inventory availability?

A: TMP411ADR provides the highest inventory level at 68,738 units in stock, followed by LM89CIMX/NOPB at 3,550 units and LM86CIMX/NOPB at 3,199 units. For immediate production needs, TMP411ADR is the recommended choice.

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