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AT30TSE754A-XM8M-B Equivalent & Substitute Parts
Part Overview
The AT30TSE754A-XM8M-B is a digital temperature sensor manufactured by Microchip Technology, designed for local temperature measurement across the -55°C to 125°C range. This device operates via I2C/SMBus interface with 11-bit resolution and is housed in an 8-MSOP surface mount package. The part is currently active in production with 732 units in stock.
Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and functional capabilities align with the original component. Substitution becomes necessary due to supply constraints, packaging preferences, or design optimization requirements while maintaining system performance.
Substiute Parts
Key Parameters
| Parameter | AT30TSE754A-XM8M-B |
|---|---|
| Manufacturer | Microchip Technology |
| Sensor Type | Digital, Local |
| Temperature Range (Local) | -55°C ~ 125°C |
| Output Interface | I2C/SMBus |
| Supply Voltage | 1.7V ~ 5.5V |
| Resolution | 11 bits |
| Accuracy | ±1°C (0°C ~ 85°C); ±3°C (-40°C ~ 125°C) |
| Package Type | 8-TSSOP/8-MSOP |
| Mounting | Surface Mount |
| Features | One-Shot, Output Switch, Programmable Limit, Programmable Resolution, Shutdown Mode |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 3 (168 Hours) |
| Part Status | Active |
Substitute Part Grouping Explanation
Substitute parts are classified based on the following critical parameters that determine functional equivalence:
Primary Substitution Criteria:
- Temperature sensing range: -55°C ~ 125°C (local measurement)
- Communication protocol: I2C/SMBus interface
- Package format: 8-MSOP surface mount
- Supply voltage compatibility: Minimum 1.7V operation required
- Resolution: 11-bit or higher
- Accuracy specification: ±1°C or better within specified test conditions
- Part status: Active production
- Compliance: ROHS3 and REACH requirements
Microchip Technology MCP Series (Direct Manufacturer Substitutes): MCP9801-M/MS, MCP9801T-M/MS, MCP9803-M/MS, and MCP9803T-M/MS maintain identical temperature range, I2C/SMBus interface, 11-bit resolution, and 8-MSOP packaging. These parts differ in supply voltage minimum (2.7V vs. 1.7V) and packaging format (Tube vs. Cut Tape/Digi-Reel). MSL rating is 1 (Unlimited) versus 3 (168 Hours) for the main part.
Analog Devices ADT75 Series (Cross-Manufacturer Substitutes): ADT75ARMZ, ADT75ARMZ-REEL, ADT75ARMZ-REEL7, ADT75BRMZ, ADT75BRMZ-REEL, and ADT75BRMZ-REEL7 provide equivalent temperature range and I2C/SMBus interface in 8-MSOP packaging. These devices feature 12-bit resolution (higher than 11-bit) and supply voltage range of 2.7V ~ 5.5V. Accuracy specifications vary: ADT75ARMZ series provides ±2°C, while ADT75BRMZ series provides ±1°C.
Parameter Comparison
| Part Number | Manufacturer | Temperature Range | Resolution | Supply Voltage | Accuracy | Package | Packaging Format | Inventory |
|---|---|---|---|---|---|---|---|---|
| AT30TSE754A-XM8M-B | Microchip Technology | -55°C ~ 125°C | 11 b | 1.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Tube | 732 |
| MCP9801-M/MS | Microchip Technology | -55°C ~ 125°C | 11 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Tube | 3611 |
| MCP9801T-M/MS | Microchip Technology | -55°C ~ 125°C | 11 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Cut Tape & Digi-Reel | 1792 |
| MCP9803-M/MS | Microchip Technology | -55°C ~ 125°C | 11 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Tube | 1360 |
| MCP9803T-M/MS | Microchip Technology | -55°C ~ 125°C | 11 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Cut Tape & Digi-Reel | 7700 |
| ADT75ARMZ | Analog Devices Inc. | -55°C ~ 125°C | 12 b | 2.7V ~ 5.5V | ±2°C / ±3°C | 8-MSOP | Tube | 19220 |
| ADT75ARMZ-REEL | Analog Devices Inc. | -55°C ~ 125°C | 12 b | 2.7V ~ 5.5V | ±2°C / ±3°C | 8-MSOP | Cut Tape & Digi-Reel | 6269 |
| ADT75ARMZ-REEL7 | Analog Devices Inc. | -55°C ~ 125°C | 12 b | 2.7V ~ 5.5V | ±2°C / ±3°C | 8-MSOP | Cut Tape & Digi-Reel | 136200 |
| ADT75BRMZ | Analog Devices Inc. | -55°C ~ 125°C | 12 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Tube | 15250 |
| ADT75BRMZ-REEL | Analog Devices Inc. | -55°C ~ 125°C | 12 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Cut Tape & Digi-Reel | 9640 |
| ADT75BRMZ-REEL7 | Analog Devices Inc. | -55°C ~ 125°C | 12 b | 2.7V ~ 5.5V | ±1°C / ±3°C | 8-MSOP | Cut Tape & Digi-Reel | 31514 |
Engineering Selection Recommendations
Microchip Technology MCP Series Selection:
MCP9801-M/MS and MCP9803-M/MS are direct functional equivalents when tube packaging is required. Both maintain 11-bit resolution and ±1°C accuracy specification. The primary design consideration is the minimum supply voltage of 2.7V, which is acceptable for systems operating above this threshold. These parts are ROHS3 compliant and REACH unaffected, matching the original part's compliance profile.
MCP9801T-M/MS and MCP9803T-M/MS provide identical electrical specifications in Cut Tape and Digi-Reel packaging formats. These variants are suitable for automated assembly processes and high-volume production environments. Inventory availability is significantly higher for MCP9803T-M/MS (7700 units) compared to the original part (732 units).
Analog Devices ADT75 Series Selection:
ADT75BRMZ and ADT75BRMZ-REEL variants provide ±1°C accuracy matching the original part's specification. The 12-bit resolution provides enhanced measurement precision compared to the 11-bit AT30TSE754A-XM8M-B. These parts are suitable for applications requiring higher resolution temperature data while maintaining equivalent temperature range and I2C/SMBus interface.
ADT75ARMZ series offers ±2°C accuracy specification, which is acceptable for applications with relaxed accuracy requirements. The 12-bit resolution remains advantageous for data resolution.
All ADT75 variants feature MSL rating of 1 (Unlimited), providing superior moisture handling compared to the original part's MSL 3 (168 Hours) rating. This is beneficial for extended storage and humid environment applications.
Packaging and Supply Considerations:
For tube packaging requirements: MCP9801-M/MS, MCP9803-M/MS, ADT75ARMZ, or ADT75BRMZ.
For Cut Tape and Digi-Reel formats: MCP9801T-M/MS, MCP9803T-M/MS, ADT75ARMZ-REEL, ADT75ARMZ-REEL7, ADT75BRMZ-REEL, or ADT75BRMZ-REEL7.
For maximum inventory availability: ADT75ARMZ-REEL7 (136,200 units) or ADT75BRMZ-REEL7 (31,514 units).
All substitute parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component.
Frequently Asked Questions (FAQ)
Q: Can MCP9801-M/MS replace AT30TSE754A-XM8M-B in all applications?
A: MCP9801-M/MS is functionally equivalent for applications with supply voltages of 2.7V or higher. The original part operates at 1.7V minimum, so systems requiring sub-2.7V operation must retain the AT30TSE754A-XM8M-B. Both parts share identical temperature range, resolution, accuracy, and I2C/SMBus interface.
Q: What is the difference between MCP9801 and MCP9803 variants?
A: Both MCP9801 and MCP9803 provide identical electrical specifications: 11-bit resolution, ±1°C accuracy, -55°C to 125°C temperature range, and I2C/SMBus interface. The designation difference reflects internal die variants, but functional performance is equivalent for temperature sensing applications.
Q: Why do ADT75 parts have 12-bit resolution instead of 11-bit?
A: ADT75 devices from Analog Devices provide 12-bit resolution as a design feature, offering finer temperature measurement granularity. This higher resolution is compatible with systems designed for 11-bit sensors, as the additional bit provides enhanced precision without affecting communication protocol or package compatibility.
Q: What is the significance of MSL rating differences?
A: The original AT30TSE754A-XM8M-B has MSL 3 (168 Hours), limiting moisture exposure before soldering. Substitute parts with MSL 1 (Unlimited) have superior moisture resistance and can be stored in humid environments indefinitely. For applications with extended storage or high-humidity manufacturing environments, MSL 1 rated parts are advantageous.
Q: Are Cut Tape/Digi-Reel variants electrically identical to Tube variants?
A: Yes. Packaging format differences (Tube vs. Cut Tape/Digi-Reel) do not affect electrical specifications. The choice depends on assembly process requirements: Tube packaging for manual or low-volume assembly, Cut Tape/Digi-Reel for automated pick-and-place systems.
Q: Can I use ADT75ARMZ instead of ADT75BRMZ?
A: ADT75ARMZ provides ±2°C accuracy versus ADT75BRMZ's ±1°C accuracy. Both share identical temperature range, resolution, and interface. Selection depends on application accuracy requirements. For applications requiring ±1°C accuracy, ADT75BRMZ is the appropriate choice.
Q: Is the supply voltage difference between 1.7V and 2.7V minimum critical?
A: This difference is critical only for systems operating below 2.7V. If your design operates at 2.7V or higher, MCP9801/MCP9803 and ADT75 series are fully compatible. For sub-2.7V applications, the original AT30TSE754A-XM8M-B must be retained.
Q: Do all substitute parts support the same I2C/SMBus addressing?
A: All listed substitute parts use I2C/SMBus protocol. Address configuration depends on individual part design and pin strapping. Consult specific datasheets for address selection options to ensure compatibility with existing system firmware.
Q: What inventory advantage do substitute parts offer?
A: MCP9803T-M/MS provides 7700 units (10.5x original stock), ADT75ARMZ-REEL7 offers 136,200 units (186x original stock), and ADT75BRMZ-REEL7 provides 31,514 units (43x original stock). These higher inventory levels reduce lead time risk for production planning.
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