LM99CIMM/NOPB Equivalent & Substitute Parts

Part Overview

The LM99CIMM/NOPB is a digital temperature sensor manufactured by Texas Instruments, designed for local and remote temperature monitoring applications. This device operates across a 0°C to 85°C sensing range with SMBus output interface and is packaged in an 8-VSSOP surface mount configuration. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

LM99CIMM/NOPB

Texas InstrumentsIn Stock: 2440LM99CIMM/NOPB Datasheet

Current PartRFQ

SA56004ADP,118

NXP USA Inc.In Stock: 9760SA56004ADP,118 Datasheet

MFR RecommendedRFQ

SA56004EDP,118

NXP USA Inc.In Stock: 16077SA56004EDP,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM99CIMM/NOPB is determined by compatibility across the following critical parameters:

Functional Compatibility Criteria:

• Sensor type classification (Digital, Local/Remote)
• Output interface protocol (SMBus compatibility)
• Package form factor (8-TSSOP/8-VSSOP equivalence)
• Surface mount mounting type
• RoHS3 compliance status

Electrical Compatibility Criteria:

• Supply voltage range overlap (minimum 3V operation required)
• Resolution capability (minimum 10-bit remote sensing)
• Accuracy specification (±3°C or better)

The substitute parts SA56004ADP,118 and SA56004EDP,118 meet these criteria through expanded operating ranges and enhanced specifications while maintaining interface and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both SA56004 variants from NXP USA Inc. are active production components suitable for replacing the obsolete LM99CIMM/NOPB. Selection between the two substitute options depends on procurement requirements:

SA56004ADP,118 is supplied in Tape & Reel (TR) packaging format, appropriate for high-volume manufacturing environments and automated assembly processes.

SA56004EDP,118 is supplied in Cut Tape (CT) & Digi-Reel® packaging format, suitable for lower-volume applications and component-level procurement scenarios.

Both parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original component. The expanded operating temperature range (-40°C to 125°C) and enhanced accuracy specification (±2°C) of the SA56004 series provide improved performance margins over the original LM99CIMM/NOPB specification.

Frequently Asked Questions (FAQ)

Q: Can SA56004ADP,118 and SA56004EDP,118 be used interchangeably with LM99CIMM/NOPB?

A: Both SA56004 variants are functionally equivalent substitutes. The primary difference is packaging format: SA56004ADP,118 uses Tape & Reel format while SA56004EDP,118 uses Cut Tape & Digi-Reel format. Selection depends on procurement and assembly requirements, not functional compatibility.

Q: What is the package compatibility between 8-VSSOP and 8-TSSOP?

A: Both 8-VSSOP and 8-TSSOP are 8-pin surface mount packages with 0.118" width and 3.00mm pitch. These packages are mechanically and electrically compatible for PCB layout and assembly purposes.

Q: Are the substitute parts backward compatible with existing firmware or software?

A: The SA56004 series maintains SMBus protocol compatibility with the LM99CIMM/NOPB. Both devices support I2C/SMBus communication, ensuring software compatibility at the protocol level.

Q: What are the key performance improvements in the SA56004 series?

A: The SA56004 series offers expanded operating temperature range (-40°C to 125°C versus 0°C to 85°C), higher resolution (10-bit versus 7/11-bit split), improved accuracy (±2°C versus ±3°C), and wider supply voltage tolerance (3V to 5.5V versus 3V to 3.6V).

Q: Is inventory availability a consideration for substitution?

A: SA56004EDP,118 has 16,007 units in stock while SA56004ADP,118 has 9,723 units available. Both represent active production components with established supply chains, unlike the obsolete LM99CIMM/NOPB.