ATXMEGA16C4-AU 32MHz AVR Microcontroller | Microchip
Référence : ATXMEGA16C4-AU ✓ ActifATXMEGA16C4-AU Présentation
An AVR XMEGA microcontroller is a compact embedded-processing platform combining an AVR RISC-style CPU, nonvolatile program memory, data EEPROM, SRAM, counters, communication interfaces, and event-handling peripherals in one package. It belongs to the microcontroller hierarchy and provides a self-contained solution for control, monitoring, data acquisition, and communication tasks where deterministic peripheral interaction and low-power operation are important.
The ATXMEGA16C4-AU includes a four-channel event system that links peripherals directly so that events can trigger actions without continuous CPU intervention. Its programmable multilevel interrupt controller supports prioritized event handling, while a 16-bit real-time counter and flexible timer resources suit periodic measurement and control tasks. A 12-bit ADC provides analog measurement capability, while the 34 I/O lines support digital interfaces, sensors, actuators, and human-machine control inputs.
The split memory architecture assigns 4 KB of the 16 KB Flash region to boot code, leaving 12 KB for the application and supporting read-while-write operation. Its 1 KB EEPROM provides nonvolatile parameter storage, and 2 KB of SRAM supports working data, stacks, buffers, and communications state. The 1.6 V to 3.6 V supply range permits integration with common 1.8 V and 3.3 V embedded systems, subject to the operating limits of each connected peripheral.
Typical uses include industrial sensor nodes, compact data loggers, building-control endpoints, automotive or transportation electronics, instrument interfaces, and communication equipment. The event system and interrupt controller are particularly useful when multiple timers, analog conversions, and external inputs must be coordinated while keeping CPU loading predictable.
When designing around the ATXMEGA16C4-AU, begin with the pin-description table in the Microchip datasheet, then assign the boot and application memory sections before finalizing firmware. Keep analog and digital return paths separated, follow the recommended decoupling arrangement, and confirm every external peripheral remains compatible with the selected 1.6 V to 3.6 V rail.
This page organizes the core memory, timing, analog, package, and environmental characteristics while adding package-focused comparisons, replacement guidance, and practical integration notes. It is intended to help engineers evaluate the ATXMEGA16C4-AU faster while still referring to the manufacturer documentation for final pin, clock, and electrical details.
Alternatives de remplacement direct pour ATXMEGA16C4-AU — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
ATXMEGA16C4-AN
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA16C4-AUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA32A4U-AU
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA32D4-AUR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA16C4-ANR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATXMEGA16C4-AU Valeurs maximales et caractéristiques électriques
| Product Type | 8/16-bit AVR XMEGA microcontroller |
| Fréquence d'horloge maximale | 32 MHz |
| Flash Memory | 16 KB |
| Boot Code Section | 4 KB |
| EEPROM | 1 KB |
| SRAM | 2 KB |
| General-Purpose I/O Lines | 34 |
| Event System Channels | 4 |
| ADC Resolution | 12 bit |
| Supply Voltage Range | 1.6 V to 3.6 V |
| Plage de température de fonctionnement | -40°C to +85°C |
| Boîtier | 44-pin TQFP (10 mm x 10 mm) |
| Type de montage | Surface mount |
| Program Memory Type | In-system programmable Flash with read-while-write capability |
| Interrupt Controller | Programmable multilevel interrupt controller |
| Timer Counter | 16-bit real-time counter |
| Core Architecture | 8/16-bit AVR RISC |
Guide de configuration des broches du ATXMEGA16C4-AU 44-pin tqfp (10 mm x 10 mm)
Configuration des broches du ATXMEGA16C4-AU (boîtier 44-pin tqfp (10 mm x 10 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 ATXMEGA16C4-AU.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATXMEGA16C4-AU convient pour 6 applications: Industrial Sensor Node, Building Control Endpoint, Compact Data Logger, Automotive Auxiliary Controller, Communication Interface Module, Precision Timing and Control.
Industrial Sensor Node
The ATXMEGA16C4-AU fits compact sensor nodes that must acquire analog measurements and coordinate periodic sampling without relying on a larger memory footprint. Its 12-bit ADC, four-channel event system, programmable multilevel interrupt controller, and 32 MHz maximum clock support responsive acquisition and control. The 34 I/O lines leave ample interface capacity for sensors, local indicators, and communications. With 16 KB Flash, 1 KB EEPROM, and 2 KB SRAM, the device is appropriate for protocol conversion, threshold monitoring, and embedded data logging, while its 1.6 V to 3.6 V range supports low-voltage industrial sensor designs.
Recommandé
Building Control Endpoint
The ATXMEGA16C4-AU is suited to building-control endpoints that combine digital inputs, analog sensing, local actuation, and maintenance functions. Its 34 general-purpose I/O lines can support switches, alarm inputs, indicators, and actuator-control signals, while the 12-bit ADC handles sensors requiring analog conversion. The event system can connect peripheral actions directly, and the multilevel interrupt controller helps prioritize incoming events. The 4 KB boot-code section supports a distinct startup routine, and the 1 KB EEPROM can retain configuration data such as calibration values or operating thresholds.
Recommandé
Compact Data Logger
The ATXMEGA16C4-AU can form the control core of a compact data logger when the stored program and buffered records remain within its 16 KB Flash and 2 KB SRAM limits. Read-while-write Flash capability helps organize nonvolatile program storage, while the 1 KB EEPROM can preserve small configuration or calibration records. Four event-system channels and the 16-bit real-time counter are useful for periodic sampling, elapsed-time measurement, and synchronized peripheral events. Its low-power 1.6 V to 3.6 V operating range also makes it suitable for portable instrumentation that derives power from a regulated low-voltage source.
Recommandé
Automotive Auxiliary Controller
The ATXMEGA16C4-AU can serve as an auxiliary controller for automotive subsystems that require mixed digital monitoring, analog measurement, and timed control within -40°C to +85°C. The 12-bit ADC, 34 I/O lines, four-channel event system, and programmable interrupt controller support coordinated sensing and deterministic responses. Its separate 4 KB boot-code area is useful for controlled startup behavior, and the compact 44-pin TQFP supports space-constrained electronics. Final automotive use still requires system-level review of transient protection, communication timing, functional safety, and any qualification obligations applicable to the complete product.
Recommandé
Communication Interface Module
The ATXMEGA16C4-AU is appropriate for communication adapters that coordinate serial interfaces, timers, and status I/O in a small embedded module. Its 32 MHz maximum clock provides timing margin for protocol handling, while the programmable event system can link communication events with counters and other peripherals. The 34 I/O lines allow connection to multiple interface signals, and the 1 KB EEPROM is suitable for storing compact link or device settings. Designers should select external interface transceivers that match the selected 1.6 V to 3.6 V supply and validate timing against the complete communication standard.
Recommandé
Precision Timing and Control
The ATXMEGA16C4-AU fits timing-sensitive control designs because it combines a 16-bit real-time counter, four event-system channels, and a programmable multilevel interrupt controller at a maximum clock frequency of 32 MHz. The event system can reduce CPU involvement by routing peripheral events directly, while the interrupt controller prioritizes service requests. Its 34 I/O lines provide signals for sensor inputs, stepper or valve controls, and status feedback. The 2 KB SRAM is adequate for compact working sets, and the separate boot section permits a dedicated initialization routine when controlled startup behavior is required.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATXMEGA16C4-AU — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATXMEGA16C4-AN | ATXMEGA16C4-AUR | ATXMEGA32A4U-AU | ATXMEGA32D4-AUR | ATXMEGA16C4-ANR |
|---|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 32 KB | 16 KB |
| Maximum Clock Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
Principaux différenciateurs
- Memory architecture includes a dedicated boot-code region (vs ATXMEGA32A4U-AU)
- Directly matched 16 KB Flash configuration (vs ATXMEGA32D4-AUR)
- Compact 34-I/O industrial-temperature configuration (vs ATXMEGA16C4-AUR)
Notes de conception
Assign the PCB footprint from the 44-pin TQFP ordering information and cross-check every pad against the Microchip pin-description table. Keep the programming interface, reset network, clock components, decoupling capacitors, and analog references close to their associated pins. Because the ATXMEGA16C4-AU operates down to 1.6 V, verify capacitor voltage ratings, regulator startup behavior, and signal levels for the final supply voltage rather than assuming 3.3 V-only logic.
Separate analog and digital return paths as shown in the manufacturer layout guidance, and place the ADC input network away from switching nodes and high-current return paths. Route sensitive sensor inputs with short traces and a continuous ground reference. If the 12-bit ADC is used for precision measurements, inspect source impedance, acquisition timing, reference stability, and grounding; adequate routing alone cannot compensate for an unsuitable sensor source or reference network.
Do not treat the 16 KB Flash figure as entirely available to application code: 4 KB is assigned to the boot-code section. Before substituting another XMEGA device, compare the linker memory map, interrupt vector layout, boot-loader behavior, peripheral configuration, clock system, and pin multiplexing. A shared 44-pin TQFP outline alone does not prove that firmware, boot code, or peripheral resources can transfer without modification.
Informations de conformité
The ATXMEGA16C4-AU is specified for -40°C to +85°C operation. RoHS, REACH, lead-free, halogen-free, and conflict-minerals statuses require confirmation from the current manufacturer product documentation or declaration for the exact ordering code.
