AT90CAN32-15MZ - 16MHz 32KB Flash CAN MCU | Microchip
N.º de pieza: AT90CAN32-15MZ ✓ ActivoAT90CAN32-15MZ Descripción general
An 8-bit AVR microcontroller is a microcontroller built around the enhanced AVR RISC architecture. It combines program flash, data EEPROM, SRAM, general-purpose I/O, timers, serial interfaces, and embedded CAN control in one integrated circuit. In the broader semiconductor hierarchy, the AT90CAN32 belongs to the microcontroller and embedded-controller category, where deterministic peripheral integration reduces the component count required for a CAN node.
The AT90CAN32-15MZ provides 32 KB of flash, 1 KB of EEPROM, 2 KB of SRAM, 32 general-purpose working registers, and 53 I/O lines according to the Microchip product information. Its integrated CAN controller supports CAN versions 2.0A and 2.0B, while the 4.5 V to 5.5 V operating range places it in the conventional 5 V MCU category rather than low-voltage 3.3 V-only designs. Its automotive-grade ordering designation supports AEC-Q100-oriented qualification workflows.
The AVR architecture uses a modified Harvard architecture and executes most instructions in one clock cycle, supporting efficient control-loop and protocol-handling workloads. The integrated CAN peripheral reduces the need for an external controller, while the 64-QFN package limits board area. The 15 MHz suffix denotes the maximum clock grade, and the 32 KB flash grade is intended for firmware volumes that do not require the larger memory configurations available in the related AT90CAN64 and AT90CAN128 families.
Typical uses include automotive body and comfort modules, industrial CAN gateways, diagnostic adapters, sensor nodes, actuator controllers, and CAN-connected instrumentation. In these systems, the MCU can manage local I/O and protocol traffic while the integrated CAN controller handles frame transmission, reception, filtering, and error management according to the supported CAN controller versions.
Designers should verify the exact 64-QFN land pattern, exposed-pad connection, pin multiplexing, and automotive qualification requirements against the manufacturer datasheet before layout release. The 5 V supply requirement must also be met throughout the vehicle or industrial system, and the PCB should provide suitable decoupling, ground-return continuity, and CAN-transceiver protection even though the transceiver is external to the MCU.
This product page consolidates the verified manufacturer specifications, current distributor pricing, same-package AVR alternatives, and application-oriented engineering guidance. It also distinguishes verified attributes from parameters that require confirmation from the complete Microchip datasheet, supporting faster sourcing without presenting unverified electrical or package data as fact.
Alternativas directas para AT90CAN32-15MZ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con AT90CAN32-15MZ (mismo factor de forma y huella) — difiere en Mounting Type, Package.
AT90CAN32-15MU
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
AT90CAN32-15AZ
✅ Sustitución directaConsulte el precio
Ver hoja de datos →AT90CAN32-16MU
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
AT90CAN32-16AZ
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
AT90CAN64-15MZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
AT90CAN32-15MZ Valores máximos y características eléctricas
| Architecture | 8-bit AVR RISC |
| Maximum Clock Speed | 15 MHz |
| Flash Memory | 32 KB |
| EEPROM | 1 KB |
| SRAM | 2 KB |
| General-Purpose I/O Lines | 53 |
| General-Purpose Working Registers | 32 |
| Ancho del bus de datos | 8 bit |
| Supply Voltage Range | 4.5 V to 5.5 V |
| CAN Controller | CAN 2.0A and CAN 2.0B |
| Program Memory Type | ISP Flash with read-while-write capability |
| Encapsulado | 64-QFN, 9 x 9 mm |
| Tipo de montaje | No-lead surface mount |
| Temperature Grade | Automotive |
| Automotive Qualification | AEC-Q100 |
| Lifecycle Stage | Active |
Guía de configuración de pines de AT90CAN32-15MZ 64-qfn, 9 x 9 mm
Configuración de pines para AT90CAN32-15MZ (encapsulado 64-qfn, 9 x 9 mm). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para AT90CAN32-15MZ.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
AT90CAN32-15MZ es adecuado para 6 aplicacións: Automotive Body Control Module, Industrial CAN Gateway, CAN Diagnostic Adapter, CAN Sensor Node, Actuator Control Module, CAN-Connected Test Equipment.
Automotive Body Control Module
The AT90CAN32-15MZ fits an automotive body controller because it combines a 15 MHz AVR core, 32 KB of ISP flash, 2 KB of SRAM, and 53 general-purpose I/O lines in a compact 64-QFN package. The microcontroller can consolidate switch inputs, solenoid or lamp outputs, diagnostic logic, and CAN communication within one controller. Its 4.5 V to 5.5 V operating range aligns with conventional vehicle power environments, while the automotive ordering designation and AEC-Q100 information support qualification-oriented design. Designers should still verify load-sharing, transient immunity, exposed-pad grounding, and all automotive qualification requirements in the complete Microchip documentation.
Recomendado
Industrial CAN Gateway
The AT90CAN32-15MZ can serve as the protocol controller in an industrial CAN gateway because its integrated CAN 2.0A/2.0B controller reduces the need for a separate CAN device. The 32 KB flash provides space for frame routing, diagnostics, configuration, and production firmware, while 53 I/O lines support local status inputs and actuator outputs. Operating from 4.5 V to 5.5 V requires a regulated 5 V rail, and the 64-QFN footprint helps constrain board area. For a gateway, the designer should validate transceiver logic levels, termination, isolation requirements, bus fault handling, and firmware deadlines against the application’s environmental limits.
Recomendado
CAN Diagnostic Adapter
The AT90CAN32-15MZ is suitable for a compact CAN diagnostic adapter where an 8-bit controller must handle request scheduling, response formatting, and a local host interface. Its 15 MHz class provides practical protocol-processing headroom, and 32 KB of flash is sufficient for many embedded diagnostics while supporting read-while-write operation. The integrated CAN peripheral supports the CAN 2.0A and 2.0B controller versions identified by Microchip. A practical design places the MCU beside an external transceiver, implements the required bus termination, and protects the interface against automotive or industrial transients. Timing, filter configuration, and diagnostic timeout behavior must be validated with the target bus.
Recomendado
CAN Sensor Node
The AT90CAN32-15MZ can consolidate a local sensor node because 53 I/O lines leave ample connections for digital sensors, switches, and status signaling while the integrated CAN controller publishes measurements. Its 2 KB SRAM supports buffering and protocol processing, and the 32 KB ISP flash accommodates application code plus field-update capability. The 4.5 V to 5.5 V supply range requires a regulated 5 V rail in most sensor installations, which should be designed for the node’s transient environment. Confirm the selected peripheral mappings, analog-function availability, ADC requirements, and CAN transceiver behavior in the complete datasheet before finalizing the schematic.
Recomendado
Actuator Control Module
The AT90CAN32-15MZ fits an actuator controller that receives commands over CAN and drives local outputs with deterministic supervisory logic. Its 15 MHz AVR core, 32 general-purpose registers, and 53 I/O lines support input polling, output sequencing, fault detection, and communication handling in one device. Because the MCU is intended for a 4.5 V to 5.5 V supply, motor or solenoid drivers require suitable power stages, protection, and isolation from the logic rail. The 64-QFN package also requires careful thermal design and exposed-pad layout. Validate output timing, watchdog behavior, bus error recovery, and load-driver tolerances before production release.
Recomendado
CAN-Connected Test Equipment
The AT90CAN32-15MZ can serve as the embedded controller in compact CAN test equipment where deterministic message handling is required without a large processor. Its 32 KB flash and 2 KB SRAM are suitable for test sequencer firmware, configuration storage, and basic result buffering, while the CAN controller handles standard frames and filtering. The 64-QFN package supports compact instrument construction, and the 4.5 V to 5.5 V range can simplify integration with laboratory 5 V power systems. For instrumentation, use an isolated transceiver where required, define bus termination for each topology, and verify timer accuracy, EMC performance, and firmware update mechanisms against the test specification.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para AT90CAN32-15MZ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | AT90CAN32-15MU | AT90CAN32-15AZ | AT90CAN32-16MU | AT90CAN32-16AZ | AT90CAN64-15MZ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) |
| Architecture | 8-bit AVR RISC | 8-bit AVR RISC | 8-bit AVR RISC | 8-bit AVR RISC | 8-bit AVR RISC | 8-bit AVR RISC |
| Maximum Clock Speed | 15 MHz | 15 MHz | 15 MHz | 16 MHz | 16 MHz | 15 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 64 KB |
| EEPROM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Supply Voltage Range | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| General-Purpose I/O Lines | 53 | 53 | 53 | 53 | 53 | 53 |
| CAN Controller | CAN 2.0A and CAN 2.0B | CAN 2.0A and CAN 2.0B | CAN 2.0A and CAN 2.0B | CAN 2.0A and CAN 2.0B | CAN 2.0A and CAN 2.0B | CAN 2.0A and CAN 2.0B |
Diferenciadores clave
- Verified automotive 15 MHz ordering option (frente a AT90CAN32-16MU)
- 32 KB flash matches the target firmware footprint (frente a AT90CAN64-15MZ)
- Integrated CAN controller reduces external logic (frente a AT90CAN32-16AZ)
Notas de diseño
The verified operating range is 4.5 V to 5.5 V, so design the local rail around a regulated 5 V supply and verify startup, load transients, and voltage tolerance at every connector. Place the device’s required bypass capacitors directly beside the supply and ground terminals, using the manufacturer-recommended capacitance and voltage rating. If the surrounding system uses a 12 V battery or industrial bus, separate the transient-heavy supply path from the MCU rail with an appropriate regulator or protection network.
The 64-QFN package concentrates heat near the exposed pad and can couple switching or regulator losses into the logic area. Follow the manufacturer’s land-pattern and thermal-pad guidance, provide a continuous ground plane under the exposed pad, and use via arrays that preserve current return paths. Estimated thermal performance cannot be calculated reliably without confirmed package details, ambient temperature, copper area, and board construction, so validate the assembled PCB with thermal analysis or temperature measurement.
Keep the CAN transceiver, protection components, and their high-current or high-voltage paths away from sensitive MCU clock and programming routes. The MCU requires a clean ground reference, while the CAN bus may carry industrial or automotive transients. Maintain short return paths between the transceiver ground and the protected quiet-ground region, verify termination placement at physically correct bus endpoints, and consult the Microchip application guidance before releasing the 64-QFN footprint.
Do not substitute a same-family part solely because its memory family name and pin count look similar. Verify the exact 64-QFN terminal map, exposed-pad connection, clock grade, temperature range, automotive qualification, boot configuration, and orderable suffix. The 16 MHz AT90CAN32 alternatives provide only about 6.7% more clock speed, while AT90CAN64-15MZ doubles flash to 64 KB; both differences should be reviewed for software timing, boot behavior, qualification, and lifecycle requirements.
Información de cumplimiento
The verified comparison listing identifies AT90CAN32-15MZ as an automotive AEC-Q100 product. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations were not included in the supplied source snippets and therefore remain unknown.