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Product Detailed Parameters
- Description：IC MCU 8/16BIT 64KB FLSH 100CBGA
- Series：AVR® XMEGA® A1
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8/16-Bit
- Speed：32MHz
- Connectivity：EBI/EMI, I2C, IrDA, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O：78
- Program Memory Size：64KB (32K x 16)
- Program Memory Type：FLASH
- EEPROM Size：2K x 8
- RAM Size：4K x 8
- Voltage - Supply (Vcc/Vdd)：1.6V ~ 3.6V
- Data Converters：A/D 16x12b; D/A 4x12b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：100-CBGA (9x9)
- Package / Case：100-TFBGA
- Grade：-
- Qualification：-
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Overview
The ATXMEGA64A1-CUR is an obsolete 8/16-bit AVR XMEGA A1 microcontroller featuring 64KB of in-system self-programmable flash, 2KB EEPROM, and 4KB SRAM. It operates on a 1.6V to 3.6V supply with frequencies up to 32MHz at 2.7V or 12MHz at 1.6V. The device utilizes a VFBGA-100 package and provides 78 programmable I/O pins. Key peripherals include two 16-channel 12-bit ADCs, four USARTs, four SPIs, four TWIs, AES/DES crypto engines, and a four-channel DMA controller.
Feature Summary
- Supports high-performance single-cycle execution via the enhanced RISC architecture.
- Integrates advanced analog capabilities including dual 12-bit ADCs and DACs.
- Provides robust security through hardware encryption engines and lock bits.
- Enables low-power operation across five selectable sleep modes.
Applications
- Industrial control systems
- Medical applications
- HVAC and building control
Procurement Notes
Verify component authenticity against Microchip standards. Confirm that the specific ordering suffix corresponds to the VFBGA-100 package type. Ensure compliance with RoHS directives as indicated in official documentation. Validate that the device meets required temperature ranges for the intended application environment.
Selection Notes
This component is explicitly marked as not recommended for new designs. Engineers should transition to the XMEGA A1U series for future projects. Evaluate existing inventory constraints before initiating new implementations. Consider pin compatibility and peripheral overlaps when migrating from this legacy model to updated alternatives.
Part Context
The ATXMEGA64A1 belongs to the AVR XMEGA A1 family, designed for embedded applications requiring high performance and low power consumption. This specific variant offers 64KB of flash memory and supports both parallel and serial communication interfaces. It represents a previous generation within the broader XMEGA portfolio.
Replacement Considerations
Microchip recommends using the XMEGA A1U series as a direct replacement. Verify pinout compatibility between the original VFBGA-100 package and the target A1U variant. Review datasheet differences regarding peripheral availability and electrical characteristics during migration.
