ATXMEGA64B1-CU - 32MHz 64KB Flash MCU | Microchip Technology
MPN： ATXMEGA64B1-CU ✓ 啟用中ATXMEGA64B1-CU 概覽
An AVR XMEGA microcontroller is a member of the embedded microcontroller hierarchy: MCU > 8/16-bit microcontroller > AVR XMEGA > mixed-signal embedded controller. It combines a programmable core, nonvolatile program memory, data memory, communication peripherals, and analog functions on one integrated circuit. The ATXMEGA64B1-CU is therefore appropriate when a design needs moderate flash capacity, multiple serial interfaces, USB connectivity, and a small component footprint rather than a general-purpose host processor.
Key features include 32 MHz operation, 64 KB flash, 4 KB SRAM, 2 KB EEPROM, and a 1.6 V to 3.6 V supply range. Verified listings also identify USB 2.0 device, I2C, SPI, and UART interfaces. The 100-CBGA package provides 100 terminals in a 9x9 mm body, making the part suitable for compact industrial, utility-metering, home-automation, climate-control, medical, and USB-connectivity equipment.
The 8/16-bit architecture supports both compact 8-bit instructions and enhanced 16-bit operations, allowing code density to be balanced against processing requirements. Its 64 KB flash provides substantially more program storage than the smallest XMEGA devices, while 4 KB SRAM and 2 KB EEPROM support working data and nonvolatile configuration. USB connectivity can simplify direct host-to-device communication without requiring a separate USB interface IC.
Typical applications include utility metering, home automation, climate-control panels, industrial controllers, sports equipment, eTokens, medical devices, USB-connected accessories, power tools, and fire-alarm systems. These uses benefit from the combination of embedded processing, USB, serial interfaces, and a compact 100-ball package. Industrial-temperature identification is important for deployments expected to operate beyond consumer-temperature environments.
Designers should review the exact pin configuration, exposed-pad requirements, clock options, USB transceiver characteristics, decoupling values, and programming interface against the manufacturer documentation before layout release. The 100-CBGA package also requires assembly capability for fine-pitch ball-grid-array inspection and soldering. Component availability and the listed $7.3475 unit price should be confirmed at purchase.
This page consolidates verified distributor specifications, sourcing links, package details, pricing information, and application guidance. It also distinguishes genuine same-package family alternatives from generic functional substitutes so engineers can assess memory differences, peripheral compatibility, and PCB-reuse risk before selecting a replacement.
直接替換替代品，適用於 ATXMEGA64B1-CU — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ATXMEGA64B1-CU （相同外形與佔位） — 差異在於 Mounting Type, Package, SRAM.
ATXMEGA128B1-CU
✅ 直接替換📋 參考替代品（不在目錄中）
ATXMEGA32B1-CU
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATXMEGA16B1-CU
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
ATXMEGA64A1-CU
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATXMEGA128A1-CU
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATXMEGA64B1-CU 最大額定值與電氣特性
| Product Type | 8/16-bit AVR XMEGA microcontroller |
| 最大時脈頻率 | 32 MHz |
| Flash Memory | 64 KB (32K x 16) |
| SRAM | 4 KB |
| EEPROM | 2 KB |
| Operating Voltage Range | 1.6 V to 3.6 V |
| Maximum Frequency Listed by Mouser | 24 MHz |
| USB Interface | USB 2.0 device |
| Serial Interfaces | I2C, SPI, and UART |
| 封裝 | 100-CBGA (9x9 mm) |
| Terminal Count | 100 terminals |
| Temperature Grade | Industrial |
| Package Finish Classification | Green |
| 安裝類型 | Surface mount |
| Package Code | VFBGA |
ATXMEGA64B1-CU vfbga 腳位配置指南
ATXMEGA64B1-CU（vfbga 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： ATXMEGA64B1-CU.
請參閱 資料表 以查看完整腳位配置。
典型應用
ATXMEGA64B1-CU 適用於 6 應用s: USB Connectivity, Utility Metering, Home Automation and Climate Control, Industrial Control, Medical and Diagnostic Devices, USB-Powered Sports and Power Tools.
USB Connectivity
The ATXMEGA64B1-CU fits USB-connected embedded accessories because it combines a 32 MHz 8/16-bit AVR XMEGA core, 64 KB of flash, and a USB 2.0 device interface in a compact 100-CBGA package. Its 1.6 V to 3.6 V operating range supports low-voltage portable and embedded systems, while 4 KB SRAM and 2 KB EEPROM provide working and persistent data storage. A designer would place the MCU between a USB connector and the controlled peripheral, then implement enumeration and data exchange in the USB firmware. The main qualification issue is verifying the exact USB transceiver, clock, and pin configuration against the manufacturer documentation before committing the PCB footprint.
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Utility Metering
ATXMEGA64B1-CU is suitable for utility-metering designs that need local control, serial communications, and nonvolatile configuration in one device. The MCU provides 64 KB of flash for meter firmware, 4 KB of SRAM for working data, and 2 KB of EEPROM for calibration or counters. Its listed I2C, SPI, and UART interfaces can connect a metering element, external memory, or communications module, while the 1.6 V to 3.6 V range supports battery- and line-derived low-voltage rails. In a compact design, the 9x9 mm 100-CBGA package helps reduce board area. Engineers should confirm the exact peripheral pin assignments, metering-interface timing, and low-power behavior in the official documentation.
推薦
Home Automation and Climate Control
The ATXMEGA64B1-CU can serve as the central controller in a compact home-automation or climate-control node because it combines 64 KB of flash, 4 KB SRAM, EEPROM, and multiple serial interfaces in a 100-CBGA package. I2C can connect sensors and regulators, SPI can support display or storage devices, UART can provide a service or network link, and USB offers a configuration path. Its 1.6 V to 3.6 V supply range fits low-voltage control boards. The component is most appropriate when moderate local processing and several interfaces are required without a larger host MCU. Firmware validation should include peripheral multiplexing, startup sequencing, bus pull-ups, and thermal performance in the intended enclosure.
推薦
Industrial Control
ATXMEGA64B1-CU is a candidate for compact industrial-control modules where local I/O handling, serial communications, and moderate firmware storage are needed. The 32 MHz maximum frequency supports responsive control tasks, while 64 KB flash provides room for application code and 2 KB EEPROM can preserve configuration values. The device is listed with an industrial temperature classification and offers I2C, SPI, UART, and USB device connectivity in a small 100-CBGA package. It can sit beside sensors, actuators, or communication transceivers on a densely populated board. Before deployment, engineers should verify the exact temperature limits, watchdog and timer resources, pin multiplexing, EMC behavior, and availability for the production lifecycle.
推薦
Medical and Diagnostic Devices
ATXMEGA64B1-CU can support compact medical and diagnostic equipment when the product requires local sensing control, USB connectivity, and moderate data processing. Its 64 KB flash and 4 KB SRAM are appropriate for embedded firmware and short working buffers, while 2 KB EEPROM can hold nonvolatile configuration. I2C and SPI provide access to sensors, while UART and USB support laboratory or service interfaces. The 1.6 V to 3.6 V operating range permits integration with low-voltage sensor systems, and the 100-CBGA package reduces board area. Because medical requirements vary by product and jurisdiction, engineers must independently validate electrical safety, EMC, firmware controls, and the applicable regulatory requirements.
推薦
USB-Powered Sports and Power Tools
ATXMEGA64B1-CU is suitable for USB-powered sports equipment and power-tool controllers where a compact MCU must coordinate switches, sensors, and a service interface. The 64 KB flash can hold application and update logic, while the USB 2.0 device capability may simplify configuration or diagnostics. I2C and SPI can connect motion or current sensors, UART can support an internal display or accessory link, and the 100-CBGA package helps keep control boards small. For battery-powered tools, the 1.6 V minimum operating voltage is relevant to regulator design, but quiescent current and analog performance are not supplied in the verified data. Those parameters and the exact USB power-management requirements must be reviewed before design approval.
推薦
推薦產品摘要
工程參考資料，適用於 ATXMEGA64B1-CU — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ATXMEGA128B1-CU | ATXMEGA32B1-CU | ATXMEGA16B1-CU | ATXMEGA64A1-CU | ATXMEGA128A1-CU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) | 100-CBGA (9x9 mm) |
| Product Family | AVR XMEGA B1 | AVR XMEGA B1 | AVR XMEGA B1 | AVR XMEGA B1 | AVR XMEGA A1 | AVR XMEGA A1 |
| Flash Memory | 64 KB | 128 KB | 32 KB | 16 KB | 64 KB | 128 KB |
主要差異化特點
- Balances substantial flash capacity with a compact package (對比ATXMEGA32B1-CU)
- Uses less flash than the larger-memory B1 candidate (對比ATXMEGA128B1-CU)
- Retains the B1 family resource structure rather than changing to A1 (對比ATXMEGA64A1-CU)
設計說明
Treat the 100-CBGA as a fine-pitch assembly package. Obtain the official 100-ball land pattern, confirm whether an exposed thermal pad is required, and follow the manufacturer's ball-pitch and solder-mask specifications rather than deriving coordinates from the 9x9 mm body size. Place decoupling capacitors at the associated power and ground balls, maintain short return paths, and reserve programming or debug access before routing the dense ball-grid footprint.
The verified operating range is 1.6 V to 3.6 V, so verify the generated rail against every core, analog, and USB requirement in the manufacturer documentation. Check the selected regulator for startup sequencing and noise at the MCU pins, and include local bulk capacitance plus high-frequency bypass near the relevant supply balls. The supplied data does not include quiescent current or USB bus-power limits, so these must not be inferred from the CPU frequency.
Do not treat the 32 MHz DigiKey value and 24 MHz Mouser value as interchangeable without checking the exact datasheet and clock configuration. Also, the 32K x 16 description identifies the 64 KB flash organization rather than a 32 KB capacity. Before releasing firmware, confirm memory limits, boot options, fuse settings, USB clocking, and peripheral assignments against the manufacturer documentation for the exact ATXMEGA64B1-CU ordering code.
合規資訊
The verified distributor data identifies the package as green and the device as industrial temperature, but it does not explicitly state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status.
