AM1705CPTPA3 Equivalent & Substitute Parts

Part Overview

The AM1705CPTPA3 is an ARM926EJ-S Microprocessor IC from Texas Instruments' Sitara™ series, featuring a single 32-bit core operating at 375MHz in a 176-HLQFP (24x24) package. This embedded processor integrates system control, SDRAM controllers, and multiple communication interfaces including Ethernet, USB 2.0, I2C, SPI, and UART functionality.

The AM1705CPTPA3 carries an obsolete product status. Identifying equivalent substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity where this processor remains specified in active applications.

Substiute Parts

AM1705CPTPA3

Texas InstrumentsIn Stock: 856AM1705CPTPA3 Datasheet

Current PartRFQ

AM1705DPTPA3

Texas InstrumentsIn Stock: 2232AM1705DPTPA3 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM1705CPTPA3 is determined by strict equivalence across the following critical parameters:

• Core Processor Architecture: ARM926EJ-S
• Core Count and Bus Width: 1 Core, 32-Bit
• Operating Frequency: 375MHz
• Co-Processor Configuration: System Control; CP15
• Memory Controller Type: SDRAM
• Peripheral Integration: Ethernet (10/100Mbps), USB 2.0 + PHY, I2C, McASP, SPI, MMC/SD, UART
• Electrical Specifications: I/O Voltage (1.8V, 3.3V), Operating Temperature Range (-40°C ~ 105°C)
• Physical Form Factor: 176-HLQFP (24x24) package with exposed pad
• Compliance Standards: ROHS3, REACH Unaffected

The AM1705DPTPA3 meets all substitution criteria. The primary distinction is packaging format (tray versus standard packaging) and product status (active versus obsolete), with no functional or electrical parameter differences.

Parameter Comparison

Engineering Selection Recommendations

The AM1705DPTPA3 is a direct functional equivalent to the AM1705CPTPA3. Both parts share identical electrical specifications, core architecture, operating frequency, peripheral integration, and compliance certifications (ROHS3, REACH Unaffected).

The AM1705DPTPA3 carries active product status from Texas Instruments, ensuring ongoing availability and supply chain support. The AM1705CPTPA3 is classified as obsolete, which may result in limited inventory and extended lead times for procurement.

Selection between these parts should be based on availability requirements and supply chain strategy. The AM1705DPTPA3 is suitable for new designs and ongoing production where long-term component availability is required. The AM1705CPTPA3 remains functionally interchangeable for legacy system maintenance where existing inventory is available.

Frequently Asked Questions (FAQ)

Q: Are the AM1705CPTPA3 and AM1705DPTPA3 electrically interchangeable?

A: Yes. Both parts feature identical core processor architecture (ARM926EJ-S), operating frequency (375MHz), I/O voltage specifications (1.8V, 3.3V), operating temperature range (-40°C ~ 105°C), and peripheral integration. No circuit modifications are required for substitution.

Q: What is the difference between these two part numbers?

A: The primary differences are product status and packaging format. The AM1705CPTPA3 is obsolete with standard packaging, while the AM1705DPTPA3 is active with tray packaging. All functional and electrical parameters are identical.

Q: Can I use the AM1705DPTPA3 in a design currently specified for the AM1705CPTPA3?

A: Yes. The AM1705DPTPA3 is a direct substitute. The 176-HLQFP (24x24) package footprint, pin configuration, and electrical characteristics are identical. No PCB redesign is necessary.

Q: What does the packaging format difference mean for procurement?

A: The AM1705CPTPA3 uses standard packaging, while the AM1705DPTPA3 is supplied in tray format. This affects handling and storage procedures but does not impact component functionality or performance.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the AM1705CPTPA3 and AM1705DPTPA3 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which part should I specify for a new design?

A: The AM1705DPTPA3 is recommended for new designs due to its active product status, which ensures ongoing availability and supply chain continuity. The AM1705CPTPA3 is suitable only where existing inventory is available for legacy system support.