ATXMEGA32C4-AU - 32MHz 32KB MCU 44-TQFP | Microchip
Référence : ATXMEGA32C4-AU ✓ ActifATXMEGA32C4-AU Présentation
An 8/16-bit microcontroller is a programmable semiconductor that combines a CPU core, nonvolatile program memory, data memory, and peripherals on one integrated circuit. The ATXMEGA32C4 belongs to the AVR XMEGA family, which extends the AVR enhanced RISC architecture into a larger 16-bit-oriented microcontroller platform. It sits within the hierarchy of microcontroller, embedded processor, semiconductor, and programmable control components used to monitor sensors and operate digital systems.
The principal specifications include a 32MHz clock, 32KB of in-system programmable Flash divided into 16K by 16 organization, 4KB SRAM, and 1KB EEPROM. The 1.6V to 3.6V supply range supports low-voltage embedded designs, while the 12-bit ADC and four-channel event system provide analog measurement and hardware event-routing capabilities. The -AU suffix identifies the industrial-temperature ordering configuration shown in the verified distributor data.
The AVR enhanced RISC architecture executes instructions in a single clock cycle and is designed for efficient embedded control. Read-while-write Flash allows program regions to remain accessible while another section is being programmed, while separate boot, SRAM, and EEPROM areas support firmware storage, working data, and nonvolatile parameter retention. The exact RAM organization, peripheral inventory, clock tree, and detailed analog performance should be confirmed in the manufacturer datasheet before final design release.
Typical uses include industrial control modules, sensor-acquisition equipment, compact motor controllers, building automation nodes, and embedded instruments. The combination of 32KB Flash, 4KB SRAM, a 12-bit ADC, and a 32MHz processing clock is useful when a design needs moderate local computation without adopting a higher-pin-count or more complex system controller. The 44-TQFP package also exposes the mixed-signal and communication resources required by embedded control boards.
Designers should verify the complete pin assignment, peripheral multiplexing, decoupling requirements, programming interface, and package drawing against the Microchip datasheet. Because the verified material confirms the TQFP44 package but does not provide a verified pin table, this listing does not infer individual signal names. PCB layouts should also preserve the manufacturer's recommended power, ground, and analog routing practices.
This product record combines the verified manufacturer and distributor specifications, current pricing reference, package information, engineering-oriented use cases, and explicit data-gap controls. It also distinguishes confirmed device attributes from unverified details, helping engineers evaluate the ATXMEGA32C4-AU without mistaking packaging variants or functionally related devices for verified drop-in replacements.
Alternatives de remplacement direct pour ATXMEGA32C4-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 alternativesATXMEGA32C4-AU Valeurs maximales et caractéristiques électriques
| Device Type | 8/16-bit Microcontroller IC |
| Product Family | AVR XMEGA C4 |
| Architecture | AVR enhanced RISC |
| Fréquence d'horloge maximale | 32 MHz |
| Flash Memory | 32 KB (16K x 16) |
| Boot Loader Section | 4 KB |
| EEPROM Memory | 1 KB |
| SRAM Memory | 4 KB |
| ADC Resolution | 12 bit |
| Tension d'alimentation de fonctionnement | 1.6 V to 3.6 V |
| Température de fonctionnement | -40°C to +85°C |
| Boîtier | 44-TQFP (10mm x 10mm) |
| Nombre de broches | 44 pins |
| Type de montage | Surface Mount |
| Event System | 4 channels |
| Flash Read-While-Write | Supported |
| Programming | In-system programmable |
Guide de configuration des broches du ATXMEGA32C4-AU 44-tqfp (10mm x 10mm)
Configuration des broches du ATXMEGA32C4-AU (boîtier 44-tqfp (10mm x 10mm)). 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 ATXMEGA32C4-AU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATXMEGA32C4-AU convient pour 6 applications: Industrial Sensor Acquisition, Compact Building Automation Node, Embedded Motor Control, Low-Voltage Embedded Controller, Instrumentation Data Front End, Communication Gateway Interface.
Industrial Sensor Acquisition
The ATXMEGA32C4-AU fits compact industrial sensor modules because it combines a 12-bit ADC with a 32MHz AVR XMEGA processor in a 44-TQFP package. The controller can digitize analog inputs, apply local filtering and threshold logic, and retain configuration or calibration data in its 1KB EEPROM. Its confirmed 1.6V to 3.6V operating range and -40°C to +85°C temperature specification suit low-voltage equipment operating across industrial temperature conditions. The design should budget the confirmed 32KB Flash and 4KB SRAM carefully, while checking the datasheet for the exact analog-channel count, reference requirements, and acquisition timing.
Recommandé
Compact Building Automation Node
ATXMEGA32C4-AU can serve as the local controller in a compact building-automation node that reads environmental sensors, drives discrete outputs, and coordinates low-speed serial communications. Its 32MHz operating speed supports responsive event handling, while 32KB Flash provides room for application firmware and 4KB SRAM accommodates short-lived working data. The 44-TQFP footprint is practical for multilayer control boards requiring more pins than a small microcontroller package. Because the verified data does not enumerate the complete peripheral set, engineers should verify USART, timer, and I2C availability in the datasheet before assigning multiple fieldbus or sensor buses.
Recommandé
Embedded Motor Control
The ATXMEGA32C4-AU is applicable to small motor-control modules where a 32MHz MCU must coordinate input capture, timing, and digital control functions in a 44-TQFP package. The 4KB SRAM can hold control state, while the 1KB EEPROM can preserve calibration values without consuming Flash. Its 12-bit ADC may support analog feedback sensing when the verified analog characteristics meet the design requirements. The main engineering trade-off is that the confirmed data does not specify motor-control timers, PWM channels, or analog acquisition performance, so those functions must be confirmed against the complete peripheral list before motor selection and power-stage design are finalized.
Recommandé
Low-Voltage Embedded Controller
ATXMEGA32C4-AU works well as the central controller in a 1.8V or 3.3V embedded design because its confirmed supply range is 1.6V to 3.6V. The device combines 32KB of in-system programmable Flash with read-while-write support, 4KB SRAM, and 1KB EEPROM, allowing firmware, working state, and persistent parameters to share one package. This integration is useful in compact instruments and portable equipment where component count and PCB area matter. Supply sequencing and low-voltage analog behavior should be reviewed carefully because the verified material does not provide startup timing, current consumption, output-voltage tolerance, or power-down specifications.
Recommandé
Instrumentation Data Front End
The ATXMEGA32C4-AU can provide the local measurement and control front end for compact instrumentation using its 12-bit ADC, 32MHz processing clock, 32KB Flash, and 4KB SRAM. Engineers can pair the microcontroller with external amplifiers, protection circuitry, and communication transceivers to form a focused signal-conditioning system. Its 44-TQFP package provides a larger pin complement than the smallest AVR devices and supports separated analog and digital routing. The verified evidence does not provide ADC input count, input impedance, sample rate, accuracy, or reference-voltage details, so those specifications must be checked before defining the analog front end and measurement accuracy budget.
Recommandé
Communication Gateway Interface
ATXMEGA32C4-AU can terminate and translate low-speed embedded links in a small protocol gateway when a board must combine serial communication with local control. The 32MHz AVR XMEGA core provides processing capacity for framing and routing, while 32KB Flash accommodates gateway firmware and 4KB SRAM supports packet buffering. The device is especially relevant to compact gateway boards operating from 1.6V to 3.6V. Exact USART, SPI, and I2C channel counts are not included in the supplied evidence and must be verified in the manufacturer datasheet. Likewise, protocol timing, isolation, ESD, and cable-routing requirements remain board-level design considerations.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATXMEGA32C4-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Device Type | 8/16-bit Microcontroller IC |
| Product Family | AVR XMEGA C4 |
| Maximum Clock Frequency | 32 MHz |
| Flash Memory | 32 KB (16K x 16) |
| EEPROM Memory | 1 KB |
| SRAM Memory | 4 KB |
| ADC Resolution | 12 bit |
| Operating Supply Voltage | 1.6 V to 3.6 V |
| Operating Temperature | -40°C to +85°C |
| Package | 44-TQFP (10mm x 10mm) |
| Brand | Microchip Technology |
| Unit Price as of 2026-10-29 | $5.0987 |
Principaux différenciateurs
- Confirmed 32KB memory configuration within the XMEGA C4 family (vs ATXMEGA16A4U-AUR)
- Four-channel hardware event system (vs ATXMEGA32A4U-AU)
- 12-bit ADC in a compact 44-TQFP package (vs ATXMEGA64D4-AUR)
- Read-while-write and in-system programmable Flash support (vs ATMEGA328P-MUR)
Notes de conception
Design the supply network for the confirmed 1.6V to 3.6V operating range and verify all voltage-dependent clock, analog, and I/O limits in the manufacturer datasheet. The verified material does not supply the total supply current, power consumption, internal regulator behavior, or recommended input and output capacitance. Do not infer capacitor values from the voltage range; instead, follow the complete datasheet reference circuit and preserve a low-impedance connection from the supply pins to the ground plane.
Separate analog and digital routing as far as the 44-pin package permits, keep the MCU ground return compact, and provide a quiet analog ground strategy only if the manufacturer reference design supports it. Confirm the ADC reference, analog-input, AVCC, and AGND assignments before routing because a verified pin table was not supplied. Place decoupling and signal-conditioning components close to their associated pins, and avoid routing high-current or switching-node copper through the analog region.
Do not treat ATXMEGA32C4-AUR as a different functional substitute for ATXMEGA32C4-AU; it is the tape-and-reel ordering form of the same device. Likewise, ATXMEGA32A4U-AU, ATXMEGA16A4U-AUR, ATXMEGA64D4-AUR, and ATXMEGA128A4U-AU are related XMEGA options but were not verified as pin-to-pin compatible. Any proposed substitution must be checked for package outline, every used pin, power pins, programming signals, peripheral multiplexing, clock requirements, and firmware dependencies.
Informations de conformité
The supplied manufacturer and distributor data identifies an industrial-temperature ATXMEGA32C4-AU but does not explicitly provide RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These values remain unknown rather than being inferred from the operating-temperature grade.
