EP9315-CBZ Equivalent & Substitute Parts

Part Overview

The EP9315-CBZ is an ARM920T-based microprocessor IC manufactured by Cirrus Logic Inc., designed for embedded applications requiring 32-bit processing at 200MHz. This device integrates a single-core ARM920T processor with comprehensive peripheral support including SDRAM controllers, graphics acceleration, and multiple interface controllers for LCD, keypad, and touchscreen applications. The EP9315-CBZ is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations.

Substiute Parts

EP9315-CBZ

Cirrus Logic Inc.In Stock: 8979EP9315-CBZ Datasheet

Current PartRFQ

AT91SAM9263B-CU-100

Microchip TechnologyIn Stock: 8057AT91SAM9263B-CU-100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EP9315-CBZ is based on the following critical parameters:

• Processor Architecture & Performance: Both devices must support 32-bit processing at 200MHz minimum
• Core Functionality: Graphics acceleration and display controller support (LCD minimum)
• Memory Support: SDRAM controller availability
• Peripheral Integration: USB 2.0 and Ethernet connectivity
• Voltage Compatibility: Support for 1.8V and 3.3V I/O operation
• Compliance & Certification: RoHS compliance and equivalent ECCN/HTSUS classification
• Thermal Operating Range: Compatibility with industrial or commercial temperature specifications

The AT91SAM9263B-CU-100 meets these substitution criteria through equivalent processor performance, integrated graphics acceleration, comprehensive peripheral support, and regulatory compliance alignment.

Parameter Comparison

Engineering Selection Recommendations

The AT91SAM9263B-CU-100 serves as a direct functional equivalent to the EP9315-CBZ based on the following engineering criteria:

Performance Equivalence: Both devices operate at 200MHz with 32-bit, single-core architectures. The ARM926EJ-S core in the AT91SAM9263B-CU-100 provides equivalent computational performance to the ARM920T.

Peripheral Compatibility: Both microprocessors integrate graphics acceleration, SDRAM controllers, and USB 2.0 connectivity. The AT91SAM9263B-CU-100 provides extended memory support through dual SDRAM/SRAM controllers and broader voltage tolerance (1.8V to 3.3V range).

Regulatory Compliance: Both devices carry identical ECCN (3A991A2) and HTSUS (8542.31.0001) classifications. The AT91SAM9263B-CU-100 meets ROHS3 compliance, exceeding the RoHS Compliant status of the EP9315-CBZ.

Thermal Operating Range: The AT91SAM9263B-CU-100 supports -40°C to 85°C operation, providing extended temperature coverage beyond the EP9315-CBZ specification of 0°C to 70°C.

Package Consideration: The AT91SAM9263B-CU-100 uses a 324-TFBGA (15x15) package versus the EP9315-CBZ 352-BBGA (27x27) package. PCB layout redesign is required for physical integration.

Frequently Asked Questions (FAQ)

Q: Can the AT91SAM9263B-CU-100 directly replace the EP9315-CBZ without design modifications?

A: Functional substitution is possible; however, physical integration requires PCB redesign due to different package geometries (324-TFBGA versus 352-BBGA). Pin-to-pin compatibility does not exist. Firmware and driver validation is necessary to confirm peripheral compatibility.

Q: What are the key differences in peripheral support between these devices?

A: The EP9315-CBZ provides dedicated keypad and touchscreen controllers, while the AT91SAM9263B-CU-100 focuses on LCD display control. The AT91SAM9263B-CU-100 adds CAN bus, MMC/SD/SDIO, and I2C interfaces. USB port count differs: EP9315-CBZ provides 3 ports; AT91SAM9263B-CU-100 provides 2 ports.

Q: Are both devices suitable for industrial temperature applications?

A: The EP9315-CBZ operates within 0°C to 70°C. The AT91SAM9263B-CU-100 extends to -40°C to 85°C, providing broader industrial temperature coverage. Application thermal requirements determine device suitability.

Q: What compliance certifications apply to both devices?

A: Both devices share identical ECCN (3A991A2) and HTSUS (8542.31.0001) classifications. The AT91SAM9263B-CU-100 meets ROHS3 compliance, while the EP9315-CBZ meets RoHS Compliant status. Both carry MSL 3 (168 Hours) moisture sensitivity ratings.

Q: How do voltage supply requirements compare?

A: The EP9315-CBZ requires 1.8V and 3.3V I/O operation. The AT91SAM9263B-CU-100 supports extended voltage range: 1.8V, 2.0V, 2.5V, 2.7V, 3.0V, and 3.3V. This broader voltage tolerance provides design flexibility for mixed-voltage systems.