ATMEGA32M1-15AD - 32KB Flash 16MHz AVR MCU, TQFP-32 | Microchip
Référence : ATMEGA32M1-15AD ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.19 | $2,19 |
| 10 | $2.02 | $20,20 |
| 100 | $1.85 | $185,00 |
| 500 | $1.71 | $855,00 |
| 1 000 | $1.58 | $1 580,00 |
ATMEGA32M1-15AD Présentation
An 8-bit AVR microcontroller is a Reduced Instruction Set Computer (RISC) device from the megaAVR family that executes powerful single-cycle instructions, positioned within the broader hierarchy of embedded processors under microcontrollers (MCU) and system-on-chip power management solutions. The AVR architecture uses Harvard memory separation, 32 general purpose working registers directly connected to the ALU, allowing one instruction to execute per clock cycle for throughput approaching 1 MIPS per MHz.
Key features include in-system self-programmable (ISP) Flash with read-while-write capability, advanced RISC architecture with 131 powerful instructions, and an integrated Programmable Serial Controller (PSC) targeted at motor control, plus an on-chip LIN controller for automotive networking. The M1 family variant is optimized for motor control and automotive body applications requiring precise power stage sequencing and robust communication.
The 15AD suffix indicates a 16 MHz speed grade, industrial operating range, and green/TQFP packaging. The device integrates the AVR core with peripheral blocks including timers, PWM via the PSC, analog-to-digital conversion, and serial interfaces (SPI, UART for LIN), reducing external component count in motor-drive nodes.
Typical applications include DC and BLDC motor control in automotive body electronics, LIN-bus actuator nodes such as window lifters, wipers and HVAC flaps, and industrial automation drives where a single MCU combines control logic, PWM generation, and diagnostics.
Design consideration: operate within the 4.5 V to 5.5 V supply window to guarantee the 16 MHz speed grade; derate clock frequency if running below this range.
This page synthesizes distributor pricing, drop-in alternatives from the same AVR M1/C1 family, and practical design notes not consolidated in the manufacturer datasheet.
Alternatives de remplacement direct pour ATMEGA32M1-15AD — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec ATMEGA32M1-15AD (même facteur de forme et même empreinte) — différant par EEPROM, SRAM, Supply Voltage, Mounting Type, Package.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
ATMEGA32M1-15AZ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATMEGA32C1-15AZ
✅ Remplacement direct✓ En stock
$2.95 / unité
Voir la fiche technique →ATMEGA64M1-15AD
✅ Remplacement direct✓ En stock
$4.45 / unité
Voir la fiche technique →ATMEGA16M1-15AD
✅ Remplacement direct✓ En stock
$2.75 / unité
Voir la fiche technique →ATMEGA32M1-ESAD
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
ATMEGA32M1-15AD Valeurs maximales et caractéristiques électriques
| Core Architecture | 8-bit AVR RISC |
| Flash Memory | 32 KB (16K x 16) ISP, read-while-write |
| EEPROM | 1 KB |
| SRAM | 2 KB |
| Maximum Clock Speed | 16 MHz |
| Tension d'alimentation | 4.5 V to 5.5 V |
| General Purpose I/O | 27 lines |
| General Purpose Working Registers | 32 |
| Instruction Set | 131 powerful instructions, mostly single-cycle |
| Package Type | 32-TQFP (7 x 7 mm, 1 mm height, 0.8 mm pitch) |
| Type de montage | Surface Mount |
| Speed Grade Suffix | 15 (16 MHz at 4.5 V - 5.5 V) |
| Product Family | AVR ATmega M1 (motor control / automotive) |
| Life Cycle Stage | ACTIVE |
| Motor Control Peripheral | PSC (Programmable Serial Controller) for motor control |
Guide de configuration des broches du ATMEGA32M1-15AD 32-tqfp (7 x 7 mm, 1 mm height, 0.8 mm pitch)
Configuration des broches du ATMEGA32M1-15AD (boîtier 32-tqfp (7 x 7 mm, 1 mm height, 0.8 mm pitch)). 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 ATMEGA32M1-15AD.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
ATMEGA32M1-15AD convient pour 6 applications: Automotive LIN Motor Control, BLDC and DC Motor Drives, Industrial Automation Actuator Nodes, HVAC Blower and Flap Control, Pumps and Thermal Management, Embedded Systems Education and Prototyping.
Automotive LIN Motor Control
The ATMEGA32M1-15AD fits automotive LIN motor nodes because it integrates a LIN controller, the PSC for multi-channel PWM generation, and 27 GPIO lines within a single 4.5-5.5 V device, matching automotive 5 V rail architectures. In a window-lifter or wiper actuator, the MCU receives LIN commands, closes the motor current loop using PSC PWM outputs plus ADC feedback, and reports position and fault status on the bus. Because PWM generation, bus communication, and diagnostics live on one die, external components shrink to a LIN transceiver and a motor driver. The 32 KB Flash accommodates LIN stacks plus motor-control firmware with margin, and 1 KB EEPROM stores calibration and wear data across power cycles.
Recommandé
BLDC and DC Motor Drives
The ATMEGA32M1-15AD is well suited to BLDC and DC motor drives because its Programmable Serial Controller (PSC) generates complementary PWM outputs with dead-time control directly from hardware, while the 16 MHz AVR core executes commutation and current-loop code with deterministic single-cycle instructions. Speed or position feedback from Hall sensors or an encoder connects to GPIO and timer inputs, and the ADC samples phase currents for closed-loop control. Placing the MCU adjacent to the gate driver on the same 5 V domain simplifies isolation and EMI design versus a two-chip solution. The 2 KB SRAM handles state-machine and filter variables; the 32 KB Flash leaves room for field-oriented control tables and fault logging in EEPROM.
Recommandé
Industrial Automation Actuator Nodes
In industrial automation, the ATMEGA32M1-15AD serves as an intelligent actuator controller where PWM-driven motors, limit switches, and serial diagnostics converge. The 27 GPIO lines interface limit switches, relay drivers, and status LEDs; the PSC outputs drive valve or conveyor motor stages; and the SPI/UART peripherals link to supervisor networks or HMI panels. Operating from a standard 4.5-5.5 V industrial supply, the device provides 16 MHz headroom for PID loops while the 1 KB EEPROM retains parameter sets through power loss. Its 32-TQFP 7x7 mm footprint suits compact actuator housings, and ISP Flash programming permits on-line firmware updates during production line retooling without desoldering the device.
Recommandé
HVAC Blower and Flap Control
HVAC blower and flap actuators benefit from the ATMEGA32M1-15AD's combination of LIN communication and PSC motor-control PWM. The LIN controller connects the node to the vehicle's body controller, receiving target positions and speed commands, while the PSC drives the blower motor or stepper-driven flaps through a driver stage. Closed-loop position feedback is read on the ADC channels, and the 16 MHz core executes ramp and jam-detection algorithms with predictable timing. Because the entire control loop runs on a 5 V single-supply AVR, the bill of materials stays minimal. The 32 KB Flash supports multiple actuator profiles, and EEPROM stores end-stop calibration data learned during assembly-line setup.
Recommandé
Pumps and Thermal Management
For coolant, fuel, or washer pump control, the ATMEGA32M1-15AD provides the PWM generation, current feedback, and network interface in one package. The PSC modulates pump speed for demand-based flow instead of on/off running, reducing acoustic noise and current stress; ADC channels monitor supply voltage, current, and temperature for diagnostic reporting over LIN to the vehicle or plant controller. The 4.5-5.5 V supply window tolerates automotive 5 V rail sag, and the 16 MHz speed grade ensures fast fault reaction. Firmware stored in 32 KB Flash can implement dry-run detection and soft-start profiles, while the 2 KB SRAM supports running-average filtering of sensor channels for reliable stall detection.
Recommandé
Embedded Systems Education and Prototyping
The ATMEGA32M1-15AD is a practical teaching and prototyping platform for motor-control-centric embedded systems because it exposes the classic AVR 8-bit RISC core - 32 working registers, 131 mostly single-cycle instructions, ISP Flash programming - together with real industrial peripherals: the PSC, LIN controller, ADC, and SPI/UART. Students can first program it as a generic AVR with standard ISP tools, then progress to motor commutation and LIN networking exercises on the same silicon. The 32-TQFP 7x7 mm package is hand-solderable with moderate skill, and the 4.5-5.5 V supply allows simple bench power. Distributor pricing around $2.19 per unit as of 2026-09-17 keeps lab budgets low.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour ATMEGA32M1-15AD — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | ATMEGA32M1-15AZ | ATMEGA32C1-15AZ | ATMEGA64M1-15AD | ATMEGA16M1-15AD |
|---|---|---|---|---|---|
| Package | 32-TQFP (7x7 mm, 0.8 mm pitch) | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same | 32-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB ISP | 32 KB ISP | 32 KB ISP | 64 KB ISP | 16 KB ISP |
| SRAM | 2 KB | 2 KB | 2 KB | 4 KB | 1 KB |
| Maximum Clock Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 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 |
| Network Peripheral | LIN controller | LIN controller | CAN controller | LIN controller | LIN controller |
| Motor Control Peripheral | PSC (Programmable Serial Controller) | PSC | PSC | PSC | PSC |
Principaux différenciateurs
- Integrated LIN controller for automotive networking (vs ATMEGA32C1-15AZ)
- Cost-optimized 32 KB memory point (vs ATMEGA64M1-15AD)
- Dedicated PSC motor-control hardware (vs ATMEGA32A-AU)
Notes de conception
Decouple VCC with a 100 nF ceramic capacitor placed within 5 mm of each VCC/GND pin pair, plus a 10 uF bulk capacitor near the IC. The 4.5 V to 5.5 V supply window is mandatory for the 16 MHz speed grade (15 suffix); if your rail can sag to 3.3 V, the 16 MHz operation is out of guarantee and you must either regulate to 5 V or lower the clock. In automotive nodes, add a series ferrite and TVS on the supply input to handle load-dump transients.
Do not confuse M1 and C1 family parts when substituting: the ATMEGA32M1 integrates a LIN controller while the ATMEGA32C1 integrates a CAN controller; the peripheral sets and register maps differ even though the 32-TQFP pinout is shared. Always verify the communication register configuration in firmware when porting between the two. Also confirm the AD suffix variant against the ordering-information table in the Microchip datasheet for the exact temperature and packaging grade before committing a production BOM.
Use the exposed routing around the 32-TQFP 0.8 mm pitch pins with 0.3 mm trace width and 0.25 mm clearance for reliable assembly. Place the ISP header (MOSI, MISO, SCK, RESET, VCC, GND) close to the MCU and route PSC PWM outputs away from the LIN transceiver lines to reduce switching noise coupling into the bus. A solid ground plane under the device improves both ADC accuracy and EMI performance in motor-drive layouts.
Informations de conformité
Compliance status not stated in the verified web data as of 2026-09-17; consult the official Microchip product page or Microchip's environmental datasheet for RoHS/REACH certificates for the AD suffix.
