AT97SC3204-H4M44-00 Equivalent & Substitute Parts

Part Overview

The AT97SC3204-H4M44-00 is an embedded Trusted Platform Module (TPM) integrated circuit manufactured by Microchip Technology. This CryptoController™ series component features an AVR core processor with EEPROM program memory and operates at 3.3V supply voltage. The part is currently in active product status with 962 units available in new original inventory. The AT97SC3204-H4M44-00 implements LPC interface communication for TPM applications requiring cryptographic security functions. Identifying equivalent substitute parts becomes necessary when addressing supply chain constraints, inventory availability, or specific application requirements that may benefit from alternative interface implementations while maintaining core TPM functionality.

Substiute Parts

AT97SC3204-H4M44-00

Microchip TechnologyIn Stock: 1045AT97SC3204-H4M44-00 Datasheet

Current PartRFQ

AT97SC3205T-H3M4C-00

Microchip TechnologyIn Stock: 2373AT97SC3205T-H3M4C-00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AT97SC3205T-H3M4C-00 qualifies as a substitute for the AT97SC3204-H4M44-00 based on the following alignment of critical parameters:

Matching Parameters:

• Manufacturer: Microchip Technology
• Category: Embedded, Integrated Circuits (ICs)
• Core Processor: AVR
• Program Memory Type: EEPROM
• Voltage - Supply: 3.3V
• Package / Case: 32-VQFN (4x4)
• Product Status: Active
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 3 (168 Hours)
• REACH Status: REACH Unaffected
• Applications: Trusted Platform Module (TPM)

Differing Parameters:

• Interface: LPC (main part) vs. I2C (substitute)
• Operating Temperature: -40°C ~ 85°C (main part) vs. 0°C ~ 70°C (substitute)
• Packaging: Bulk (main part) vs. Tape & Reel (substitute)

The substitute part maintains identical core functionality, processor architecture, memory configuration, and compliance certifications. The primary distinction lies in the communication interface protocol and operating temperature range, which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the AT97SC3204-H4M44-00 and AT97SC3205T-H3M4C-00 maintain active product status with Microchip Technology and carry identical RoHS3 and REACH compliance certifications. Selection between these parts depends on application-specific requirements:

The AT97SC3204-H4M44-00 supports LPC interface communication and operates across an extended temperature range of -40°C to 85°C, making it suitable for industrial and automotive applications requiring broader thermal performance. The AT97SC3205T-H3M4C-00 implements I2C interface communication with a standard operating temperature range of 0°C to 70°C, appropriate for commercial and consumer applications. Both parts share identical core processor architecture, memory configuration, and supply voltage specifications. The choice between these substitutes must align with the host system's communication protocol requirements and thermal operating environment specifications.

Frequently Asked Questions (FAQ)

Q: Can the AT97SC3205T-H3M4C-00 directly replace the AT97SC3204-H4M44-00 in existing designs?

A: Direct replacement requires verification of interface compatibility. The AT97SC3204-H4M44-00 uses LPC communication protocol, while the AT97SC3205T-H3M4C-00 uses I2C protocol. Host system firmware and hardware must support I2C communication to enable substitution. Physical package compatibility (32-VQFN 4x4) is identical.

Q: What are the temperature operating range implications for substitution?

A: The AT97SC3204-H4M44-00 operates from -40°C to 85°C, while the AT97SC3205T-H3M4C-00 operates from 0°C to 70°C. Applications requiring operation below 0°C or above 70°C must use the AT97SC3204-H4M44-00. Standard commercial temperature range applications can use either part.

Q: Are packaging differences significant between these parts?

A: Both parts use identical 32-VQFN (4x4) package geometry. The AT97SC3204-H4M44-00 is supplied in bulk packaging, while the AT97SC3205T-H3M4C-00 is supplied in Tape & Reel format. This affects handling and assembly processes but not electrical or mechanical compatibility.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AT97SC3204-H4M44-00 and AT97SC3205T-H3M4C-00 are ROHS3 compliant, REACH unaffected, and carry identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours).

Q: What is the primary technical difference between these substitute parts?

A: The primary difference is the communication interface protocol. The AT97SC3204-H4M44-00 implements LPC (Low Pin Count) interface, while the AT97SC3205T-H3M4C-00 implements I2C (Inter-Integrated Circuit) interface. Both deliver identical TPM functionality through different communication methods.