ATXMEGA64B1-AU - 32MHz 64KB AVR MCU | Microchip
Référence : ATXMEGA64B1-AU ✓ ActifATXMEGA64B1-AU Présentation
An 8/16-bit microcontroller is a compact embedded-processing semiconductor intended to execute firmware, control peripherals, and manage real-time system tasks. The AVR XMEGA B1 family uses the AVR enhanced RISC architecture and belongs to the broader hierarchy of 8-bit microcontroller, embedded processor, and system-on-chip semiconductor devices. Its combination of nonvolatile program memory, static data memory, communication peripherals, and event-driven hardware makes it suitable for control-intensive products rather than general-purpose computing.
Key features include 64 KB of in-system self-programmable Flash with read-while-write capability, an 8 KB boot-code section, 8 KB SRAM, and 2 KB EEPROM. The integrated two-channel DMA controller transfers data without repeated CPU intervention, while the four-channel event system links peripherals through hardware events. A USB Full Speed Device interface supports direct USB connectivity, and the LCD controller can drive up to 4x40 segments. Up to 32 MIPS of execution capability supports responsive control and signal-processing workloads.
The XMEGA B1 architecture integrates timers, communication interfaces, analog functions, and event-system resources around the AVR core. Its event system can route activity among peripherals without routing every event through the central processor, reducing interrupt overhead in deterministic designs. Read-while-write Flash supports firmware updates and data storage workflows, while DMA is useful for transferring display, communication, or sampled data blocks. The microcontroller also includes a real-time counter for timekeeping applications.
Typical uses include USB-connected human-interface devices, segmented LCD instruments, industrial control panels, low-power embedded controllers, and communications equipment. The 53 I/O pins provide substantial board-level connectivity, while the USB device interface simplifies direct host connectivity. The 4x40-segment LCD capability is particularly useful in meters, counters, laboratory equipment, and appliance interfaces where a character-oriented display is preferred.
When designing around the ATXMEGA64B1-AU, verify every signal against the 100-pin package pin description and keep USB routing layout-controlled on a multilayer board. The 1.62 V to 3.6 V operating range supports low-voltage designs, but external components, USB transceiver requirements, and display characteristics still require system-level validation. Firmware should also account for the independent Flash, EEPROM, SRAM, and peripheral resources when planning updates and data retention.
This product page consolidates device specifications, package details, practical application guidance, and a parameter comparison that can help engineers evaluate the ATXMEGA64B1-AU before schematic capture or firmware development.
Alternatives de remplacement direct pour ATXMEGA64B1-AU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesATXMEGA64B1-AU Valeurs maximales et caractéristiques électriques
| Product Type | 8/16-bit AVR XMEGA B1 microcontroller |
| Fréquence d'horloge maximale | 32 MHz |
| Program Memory | 64 KB Flash (32K x 16) |
| Boot Code Section | 8 KB |
| SRAM | 8 KB (8K x 8) |
| EEPROM | 2 KB |
| General-Purpose I/O | 53 lines |
| DMA Channels | 2 channels |
| Event System Channels | 4 channels |
| USB Interface | USB Full Speed Device |
| LCD Support | Up to 4x40 segment LCD |
| Execution Performance | Up to 32 MIPS |
| Operating Voltage | 1.62 V to 3.6 V |
| Boîtier | 100-pin TQFP, 14 mm x 14 mm |
| Type de montage | Surface mount |
| Temperature Grade | Industrial |
| Program Memory Type | Self-programmable Flash |
| Flash Read-While-Write | Supported |
| Real-Time Counter | Integrated |
Guide de configuration des broches du ATXMEGA64B1-AU 100-pin tqfp, 14 mm x 14 mm
Configuration des broches du ATXMEGA64B1-AU (boîtier 100-pin tqfp, 14 mm x 14 mm). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour ATXMEGA64B1-AU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATXMEGA64B1-AU convient pour 6 applications: USB Human-Interface Devices, Segmented LCD Instruments, Industrial Data Acquisition, Communications Equipment, Low-Power Embedded Controllers, Real-Time Control Panels.
USB Human-Interface Devices
The ATXMEGA64B1-AU fits USB-connected keyboards, control panels, and compact human-interface devices because its integrated USB Full Speed Device controller reduces the need for a separate USB interface controller. The 32 MHz core can service USB traffic while its two-channel DMA controller moves data with limited CPU intervention. Its 53 general-purpose I/O lines support buttons, indicators, sensors, and status signals, while 64 KB Flash accommodates protocol, HID reports, and application firmware.
Recommandé
Segmented LCD Instruments
The ATXMEGA64B1-AU is suitable for meters, counters, laboratory instruments, and appliance panels that use segmented character displays. Its LCD controller supports displays up to 4x40 segments, reducing the external driver burden for a directly connected panel. The remaining 53 general-purpose I/O lines can handle keys, alarm signals, and measurement inputs, while the 32 MHz execution rate supports responsive updates and the real-time counter provides a timing reference for instrument operation.
Recommandé
Industrial Data Acquisition
The ATXMEGA64B1-AU can serve as the control core for compact industrial data-acquisition equipment that combines sensing, communications, and local display functions. Its two-channel DMA controller transfers sampled or buffered data efficiently, while the four-channel event system coordinates triggers among peripherals. The 2 KB EEPROM preserves configuration and calibration parameters, 8 KB SRAM supports working buffers, and the 1.62 V to 3.6 V operating range supports low-voltage system partitioning.
Recommandé
Communications Equipment
The ATXMEGA64B1-AU is appropriate for connected control and communications equipment where USB, event-driven peripherals, and moderate embedded processing are required. The USB Full Speed Device interface provides a standard wired interface, and the event system permits deterministic routing among timers, communications channels, and external signals without routing every event through the CPU. Its 64 KB Flash supports protocol stacks and control firmware, while the 53 I/O lines provide practical peripheral connectivity.
Recommandé
Low-Power Embedded Controllers
The ATXMEGA64B1-AU fits compact embedded controllers that need broad I/O availability, local data retention, and low-voltage operation. Its 1.62 V to 3.6 V supply range permits integration with low-energy sensors and portable circuitry, while self-programming Flash and EEPROM support firmware updates and persistent configuration. The 32 MHz clock and DMA resources support responsive control without requiring a larger host processor, and the TQFP package supports conventional surface-mount assembly.
Recommandé
Real-Time Control Panels
The ATXMEGA64B1-AU is well suited to real-time control panels that combine display updates, USB connectivity, operator inputs, and external control signals. The hardware event system can coordinate timing-sensitive activities among the four-channel event system resources, while DMA supports efficient buffer movement. With 53 general-purpose I/O lines, 64 KB Flash, and up to 32 MIPS of execution performance, the device can consolidate functions that would otherwise require multiple controllers in compact industrial or commercial equipment.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATXMEGA64B1-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Package | 100-pin TQFP, 14 mm x 14 mm |
| Brand | Microchip Technology |
| Maximum Clock Frequency | 32 MHz |
| Program Memory | 64 KB Flash |
| SRAM | 8 KB |
| EEPROM | 2 KB |
| General-Purpose I/O | 53 lines |
| USB Interface | USB Full Speed Device |
| LCD Support | Up to 4x40 segments |
| Operating Voltage | 1.62 V to 3.6 V |
Principaux différenciateurs
- Right-sized 64 KB Flash configuration (vs ATXMEGA128B1-AU)
- Same 32 MHz performance class (vs ATXMEGA128B1-AU)
- Shared 100-pin TQFP board platform (vs ATXMEGA128B1-AU)
Notes de conception
Assign every signal from the 100-pin TQFP pin-description table and keep USB routing short, continuous, and referenced to a solid ground plane. The package provides 53 general-purpose I/O lines but also includes power, ground, reset, programming, clock, USB, and alternate-function pins; treating all 53 as interchangeable GPIO would create design errors. Confirm exposed-side pad and thermal requirements against the manufacturer's package drawing before finalizing copper and assembly rules.
Design the 1.62 V to 3.6 V supply rail so it remains within the device's operating range during startup, USB attachment, display activation, and peripheral loading. Place local supply bypass capacitance close to the relevant VCC and ground pins, then validate the network with the actual input impedance and transient load. The USB and LCD sections can introduce dynamic loads that should be evaluated rather than relying only on steady-state current calculations.
Do not assume that the 4x40 LCD capability covers every display arrangement; verify segment count, drive bias, glass configuration, and pin multiplexing in the manufacturer datasheet. Likewise, confirm that alternate I/O functions are available on the selected pins. The event system, DMA controller, and USB interface can simplify firmware, but each requires correct peripheral configuration and conflict resolution before the associated pins can be used.
Plan programming and debug access early in the schematic so programming-test points do not interfere with compact 100-pin layouts. Keep sensitive analog and communication routes away from fast-switching nodes, and use a compact, quiet reference arrangement if precision measurement channels are added. Although the device is primarily digital, the placement of sensor inputs, external oscillators, USB connections, and display lines can materially affect signal integrity in a dense TQFP design.
Informations de conformité
The ATXMEGA64B1-AU is identified as an industrial-grade microcontroller. Specific RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations were not identified and should be obtained for the selected production lot.