AT91SAM7SE512-CU Equivalent & Substitute Parts

Part Overview

The AT91SAM7SE512-CU is an ARM7® SAM7SE microcontroller IC featuring 16/32-bit architecture, 55MHz operation, and 512KB FLASH memory in a 144-BGA (13x13) package. This part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations. The SAM7SE series provides integrated connectivity options including EBI/EMI, I2C, SPI, SSC, UART/USART, and USB interfaces, along with peripheral functions such as brown-out detection, power-on reset, PWM, and watchdog timer capabilities.

Substiute Parts

AT91SAM7SE512-CU

Microchip TechnologyIn Stock: 2000AT91SAM7SE512-CU Datasheet

Current PartRFQ

AT91SAM7SE512B-CU

Microchip TechnologyIn Stock: 2255AT91SAM7SE512B-CU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT91SAM7SE512-CU is determined by strict equivalence across the following critical parameters:

• Core processor architecture (ARM7®)
• Core size (16/32-Bit)
• Operating frequency (55MHz)
• Program memory capacity and type (512KB FLASH)
• RAM capacity (32K x 8)
• Supply voltage range (1.65V ~ 1.95V)
• I/O count (88 pins)
• Connectivity interfaces (EBI/EMI, I2C, SPI, SSC, UART/USART, USB)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
• Data converter specifications (A/D 8x10b)
• Operating temperature range (-40°C ~ 85°C)
• Surface mount configuration
• RoHS3 compliance and MSL rating

The AT91SAM7SE512B-CU meets all substitution criteria as a direct equivalent within the SAM7SE series, with identical electrical and functional specifications. The primary distinction is packaging format and product status transition.

Parameter Comparison

Engineering Selection Recommendations

The AT91SAM7SE512B-CU is a direct functional equivalent to the AT91SAM7SE512-CU. Both devices share identical electrical specifications, memory configurations, peripheral feature sets, and operating parameters. The AT91SAM7SE512B-CU maintains ROHS3 compliance and equivalent MSL rating, ensuring compatibility with current manufacturing and environmental standards.

The primary distinction is product lifecycle status: the AT91SAM7SE512-CU is classified as obsolete, while the AT91SAM7SE512B-CU is active. For new designs and ongoing production support, the AT91SAM7SE512B-CU is the appropriate selection. Both parts are supplied in 144-LFBGA packaging with identical pinout and functional integration.

Frequently Asked Questions (FAQ)

Q: Are the AT91SAM7SE512-CU and AT91SAM7SE512B-CU pin-compatible?

A: Yes. Both devices are packaged in 144-LFBGA format with 88 I/O pins and identical pinout configuration. They are direct pin-for-pin equivalents.

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

A: The AT91SAM7SE512B-CU is the active production variant of the SAM7SE series, while the AT91SAM7SE512-CU is classified as obsolete. Electrical and functional specifications are identical.

Q: Can I use AT91SAM7SE512B-CU as a replacement in existing designs using AT91SAM7SE512-CU?

A: Yes. The AT91SAM7SE512B-CU is a direct substitute with no design modifications required. Firmware and PCB layouts remain compatible.

Q: Are both parts RoHS compliant?

A: Yes. Both the AT91SAM7SE512-CU and AT91SAM7SE512B-CU are ROHS3 compliant with MSL rating 3 (168 Hours).

Q: What supply voltage range do these microcontrollers support?

A: Both devices operate within the voltage range of 1.65V to 1.95V (Vcc/Vdd).

Q: Are there any differences in connectivity or peripheral features?

A: No. Both parts provide identical connectivity interfaces (EBI/EMI, I2C, SPI, SSC, UART/USART, USB) and peripheral functions (Brown-out Detect/Reset, POR, PWM, WDT).