ATMEGA16M1-15AZ - 8-bit AVR MCU 16KB CAN LIN | Microchip
MPN: ATMEGA16M1-15AZ β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.78 | $37.80 |
| 100 | $3.25 | $325.00 |
| 500 | $2.85 | $1,425.00 |
| 1,000 | $2.52 | $2,520.00 |
ATMEGA16M1-15AZ Overview
An AVR 8-bit microcontroller is a member of the broader microcontroller (MCU) family - a single-chip computer that integrates a processor core, program memory, data memory, and peripherals. In the component hierarchy it sits within embedded processors used in control systems, and the ATmega family is a RISC architecture executing 131 powerful instructions, most in a single clock cycle.
Key features include the CAN 2.0 controller with six message objects for in-vehicle networking, the LIN controller for low-cost sub-networks, and the Power Stage Controller (PSC) that generates complementary PWM outputs with dead-time insertion - purpose-built for 3-phase motor control. The 8-channel 10-bit ADC enables analog sensing, and the JTAG interface supports on-chip debug.
The advanced RISC architecture combines with self-programming Flash, allowing in-system firmware updates via CAN or LIN bootloaders. Supply voltage spans 2.7 V to 5.5 V, supporting both 3.3 V and 5 V systems, with internal oscillator options reducing external component count. The automotive AEC-Q100 qualification and wide temperature operation distinguish this CAN/LIN family from general-purpose ATmega parts.
Typical applications include 3-phase BLDC and PMSM motor control in automotive and industrial drives, LIN/CAN networked body-control modules, and sensor nodes with local analog acquisition. The PSC plus ADC plus CAN combination means a single chip can close the current loop and talk to the vehicle bus.
Design consideration: allocate Flash headroom for the CAN/LIN bootloader - the 16 KB program memory includes the bootloader region, so verify code size before committing to the 16 KB variant over the pin-compatible 32 KB or 64 KB family members.
This page synthesizes verified distributor data, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet alone.
Drop-in alternatives for ATMEGA16M1-15AZ β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ATMEGA32M1-15AZ
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA64M1-15AZ
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA16M1-15AT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA32M1-15AT
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA16M1-15AZ Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit AVR RISC |
| Program Memory Size | 16 KB (8K x 16) Flash, self-programming |
| SRAM Size | 1 KB (1K x 8) |
| EEPROM Size | 512 B |
| Maximum CPU Speed | 16 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| CAN Controller | Yes, 6 message objects |
| LIN Controller | Yes |
| Power Stage Controller (PSC) | Yes |
| ADC | 8-channel 10-bit |
| Debug Interface | JTAG (on-chip debug) |
| Oscillator Type | Internal |
| Package / Case | 32-TQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel |
| Qualification | Automotive, AEC-Q100 |
| Series | AVR ATmega (ATMEGA16M1) |
| Instruction Set | 131 powerful instructions, most single-cycle |
ATMEGA16M1-15AZ 32-tqfp (7x7 mm) Pin Configuration Guide
Pin configuration for ATMEGA16M1-15AZ (32-tqfp (7x7 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for ATMEGA16M1-15AZ.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA16M1-15AZ is suitable for 6 applications: 3-Phase BLDC / PMSM Motor Control, Automotive Body Control / Networked Modules, Industrial CAN-Connected Sensor Nodes, LED Lighting and Ballast Control, Automotive Pump and Fan Controllers, Embedded Systems Education and Prototyping.
3-Phase BLDC / PMSM Motor Control
The ATMEGA16M1-15AZ is purpose-built for 3-phase motor control: its Power Stage Controller (PSC) generates complementary PWM pairs with hardware dead-time insertion, driving the six switches of a 3-phase inverter without software-critical timing. The 8-channel 10-bit ADC samples phase currents and the DC bus for closed-loop commutation, while the 16 MHz AVR core executes FOC or block commutation algorithms with deterministic single-cycle instructions. The CAN controller with six message objects integrates the drive into vehicle or industrial networks. Because the PWM, ADC and network peripherals are all on-chip, one AEC-Q100-qualified 32-TQFP replaces a multi-chip solution, reducing BOM cost and board area.
Recommended
Automotive Body Control / Networked Modules
In automotive body and comfort modules (window lifts, lighting, wipers), the ATMEGA16M1-15AZ provides both network interfaces required by modern architectures: a CAN controller with six message objects for the powertrain/body bus and a LIN controller for low-cost sub-bus devices such as mirror or seat actuators. The self-programming Flash enables field firmware updates over CAN/LIN bootloaders without service-tool access to the JTAG port. AEC-Q100 qualification and the automotive-grade series designation address OEM quality flows. With 2.7 V to 5.5 V operation the MCU tolerates regulated 5 V rail sag during cranking conditions, improving robustness in 12 V electrical systems.
Recommended
Industrial CAN-Connected Sensor Nodes
Industrial sensor and actuator nodes benefit from the ATMEGA16M1-15AZ combination of an 8-channel 10-bit ADC and an on-chip CAN controller. Local analog acquisition (pressure, temperature via bridges or ratiometric sensors) is digitized at 10-bit resolution, filtered in the 1 KB SRAM, and published on the CAN bus using the six hardware message objects that offload transmit scheduling from firmware. The internal oscillator option removes the crystal from small nodes, while self-programming Flash supports remote reconfiguration. The 512 B EEPROM retains calibration coefficients through power cycles without external non-volatile memory, simplifying node design.
Recommended
LED Lighting and Ballast Control
The Power Stage Controller of the ATMEGA16M1-15AZ produces phase-shifted and complementary PWM with dead time, which suits switched-mode LED drivers and electronic ballasts requiring controlled half-bridge switching. The 10-bit ADC closes the loop on LED current or lamp voltage, enabling constant-current regulation and fault detection (open/short conditions) at the firmware level. The LIN controller supports networked lighting in vehicles, while CAN handles commercial-lighting backbone control. AEC-Q100 qualification allows use under luminaire thermal conditions, and the 2.7 V to 5.5 V range supports standard controller supplies in a single 32-TQFP device.
Recommended
Automotive Pump and Fan Controllers
Fuel pumps, coolant pumps, and radiator fans are classic ATmega M1 applications: the PSC drives a single-ended or half-bridge power stage with hardware dead-time, the ADC reads current for stall and overload detection, and the CAN/LIN controllers report status and receive duty-cycle commands from the vehicle network. The 16 MHz core has sufficient throughput for sensorless commutation of small BLDC pumps using back-EMF sampled by the on-chip ADC. Self-programming Flash permits end-of-line calibration data and firmware in one 16 KB memory map, and AEC-Q100 qualification satisfies automotive component approval requirements.
Recommended
Embedded Systems Education and Prototyping
The ATMEGA16M1-15AZ is attractive for teaching embedded networking: students can implement a real CAN node with six message objects and a LIN slave on a low-cost 8-bit part, then debug interactively through the JTAG on-chip debug interface rather than printf-style tracing. The AVR RISC architecture with 131 mostly single-cycle instructions is well documented, the internal oscillator simplifies first boards, and the same footprint scales to the 32 KB and 64 KB family members as course projects grow. Availability in small Tape & Reel or cut-tape quantities keeps per-student kit cost low.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA16M1-15AZ β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA32M1-15AZ | ATMEGA64M1-15AZ | ATMEGA16M1-15AT | ATMEGA32M1-15AT |
|---|---|---|---|---|---|
| Package | 32-TQFP (7x7 mm) | 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 |
| Program Memory (Flash) | 16 KB | 32 KB | 64 KB | 16 KB | 32 KB |
| SRAM | 1 KB | 2 KB | 4 KB | 1 KB | 2 KB |
| Max CPU Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| CAN Controller | Yes, 6 message objects | Yes, 6 message objects | Yes, 6 message objects | Yes, 6 message objects | Yes, 6 message objects |
| LIN Controller / PSC | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes | Yes / Yes |
| Supply Voltage | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Qualification | Automotive, AEC-Q100 | Automotive, AEC-Q100 | Automotive, AEC-Q100 | Automotive, AEC-Q100 | Automotive, AEC-Q100 |
Key Differentiators
- Purpose-built motor-control peripheral (PSC) (vs ATMEGA168-20AU)
- Integrated CAN with 6 message objects (vs ATMEGA168-20AU)
- AEC-Q100 automotive qualification (vs ATMEGA168-15AZ)
- Trade-off: smaller Flash/SRAM than 32M1/64M1 siblings (vs ATMEGA32M1-15AZ)
Design Notes
Budget Flash carefully: the 16 KB program memory must contain the application plus any CAN/LIN bootloader used for self-programming updates. If post-production firmware updates over CAN are planned, reserve the bootloader region early and compile with the same memory map; otherwise a late migration to the pin-compatible ATMEGA32M1-15AZ will be required. Verify code size with linker maps at every release, not at the end of the project.
Decouple VCC with 100 nF ceramic capacitors placed within a few millimeters of the TQFP power pins, plus bulk capacitance (4.7-10 uF) per rail. Keep the CAN and LIN transceiver traces short and route them away from PSC PWM lines, which switch fast and can couple into bus lines. Provide a solid ground plane under the 7x7 mm TQFP and use the JTAG header footprint in every design revision even when debug is not planned - retro-fitting JTAG pads on assembled boards is impractical.
For CAN and LIN compliance, timing accuracy matters: when using the internal oscillator, verify the bit-timing tolerance against CAN/LIN protocol requirements for your bus speed; many CAN designs require a crystal or external clock to meet oscillator tolerance at the target baud rate. Keep ADC sensing lines (phase currents, bus voltage) as kelvin-routed, filtered inputs away from PSC switching nodes, and sample synchronously to PWM edges to avoid switching noise corrupting 10-bit readings.
Estimated: an 8-bit MCU at 16 MHz typically dissipates well under 0.5 W, so the 32-TQFP (7x7 mm) needs no heatsink in most applications. However, confirm total dissipation including PSC drive conditions and pin output currents in your specific design; if the MCU sources or sinks LED or gate-drive currents on many pins simultaneously, sum pin currents against the datasheet per-package current limit.
Compliance Information
Series listed as Automotive, AEC-Q100 by distributor sources (Mouser, Hotenda, atmel-micro.com). AZ suffix denotes green packaging grade in Atmel/Microchip convention. REACH/halogen/conflict-minerals certificates not present in provided data.
