AM1806BZWT4 Equivalent & Substitute Parts

Part Overview

The AM1806BZWT4 is an ARM926EJ-S Microprocessor IC from Texas Instruments' Sitara™ series, featuring a single 32-bit core operating at 456MHz in a 361-NFBGA (16x16) package. This embedded processor integrates system control, CP15 co-processor, LPDDR and DDR2 RAM controllers, LCD display interface, USB 2.0 PHY, and multiple communication interfaces including I2C, McASP, McBSP, SPI, MMC/SD, and UART.

The AM1806BZWT4 is classified as obsolete. Locating equivalent or substitute components becomes necessary when original inventory is depleted or when transitioning to active product lines for long-term design support and supply chain continuity.

Substiute Parts

AM1806BZWT4

Texas InstrumentsIn Stock: 905AM1806BZWT4 Datasheet

Current PartRFQ

AM1806EZWT4

Texas InstrumentsIn Stock: 1042AM1806EZWT4 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AM1806BZWT4 is determined by strict equivalence across the following critical parameters:

• Core processor architecture and model (ARM926EJ-S)
• Core count and bus width (1 Core, 32-Bit)
• Operating frequency (456MHz)
• Co-processor and DSP capabilities (System Control; CP15)
• Memory controller support (LPDDR, DDR2)
• Display interface capability (LCD)
• USB specification and PHY integration (USB 2.0 + PHY)
• I/O voltage levels (1.8V, 3.3V)
• Operating temperature range (0°C ~ 90°C)
• Package type and pin count (361-NFBGA, 16x16)
• Peripheral interface set (I2C, McASP, McBSP, SPI, MMC/SD, UART)
• Compliance certifications (ROHS3, MSL 3)

The AM1806EZWT4 meets all these criteria and qualifies as a direct substitute. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The AM1806EZWT4 is the direct substitute for the AM1806BZWT4. Both components are electrically and mechanically identical across all specified parameters. The AM1806EZWT4 carries active product status from Texas Instruments, ensuring ongoing availability and supply chain support. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Selection of the AM1806EZWT4 is appropriate for new designs, production transitions, or replacement of obsolete inventory.

Frequently Asked Questions (FAQ)

Q: Can the AM1806EZWT4 be used as a direct replacement for the AM1806BZWT4 in existing designs?

A: Yes. The AM1806EZWT4 is electrically and mechanically equivalent to the AM1806BZWT4. All functional parameters, pin configurations, voltage specifications, operating temperature ranges, and peripheral interfaces are identical. No design modifications are required.

Q: What is the difference between the AM1806BZWT4 and AM1806EZWT4?

A: The primary differences are product status and packaging format. The AM1806BZWT4 is obsolete, while the AM1806EZWT4 is active. The AM1806EZWT4 is supplied in Tray packaging, whereas the AM1806BZWT4 packaging format is not specified. Functionally, both parts are identical.

Q: Are there any compatibility concerns when switching from AM1806BZWT4 to AM1806EZWT4?

A: No compatibility concerns exist. Both parts use the identical 361-NFBGA (16x16) package with the same pin assignments, electrical characteristics, and interface specifications. PCB layouts and firmware require no modification.

Q: What certifications and compliance standards apply to both parts?

A: Both the AM1806BZWT4 and AM1806EZWT4 are ROHS3 compliant, REACH unaffected, and classified under ECCN 3A991A2 and HTSUS 8542.31.0001. Both carry Moisture Sensitivity Level 3 (168 Hours).

Q: Why is the AM1806BZWT4 listed as obsolete?

A: Obsolete status indicates that Texas Instruments has discontinued active production and support for this part number. The AM1806EZWT4 represents the active equivalent in the Sitara™ product line.