ATMEGA16M1-15MD - 16KB Flash AVR MCU with CAN/LIN | Microchip
MPN: ATMEGA16M1-15MD β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.92 | $4.92 |
| 10 | $4.43 | $44.30 |
| 100 | $3.94 | $394.00 |
| 500 | $3.55 | $1,775.00 |
| 1,000 | $3.2 | $3,200.00 |
ATMEGA16M1-15MD Overview
An 8-bit microcontroller (MCU) is a single-chip computer that executes a stored program to control electronic systems. Within the semiconductor hierarchy, the ATMEGA16M1 sits in the AVR family of reduced instruction set computing (RISC) devices, which fall under the broader classes of embedded processors and system-on-chip solutions. The AVR advanced RISC architecture executes 133 powerful instructions, most in a single clock cycle, delivering efficient performance at modest clock rates.
Key differentiating features include the supply range of 2.7 V to 5.5 V, 53 general-purpose I/O lines on the family, 8 MHz rated clock operation in this speed grade, and the combination of CAN and LIN networking controllers on one die - a rare pairing that makes this family well suited to in-vehicle networking nodes. The 10-bit ADC supports single-ended conversion with operation specified from -40C to +150C at VCC = 4.5 V to 5.5 V.
Architecturally, the device uses a Harvard-structure AVR core with separate program and data buses, self-programming Flash for field updates, and a Power Stage Controller for motor-control PWM generation. The JTAG boundary-scan and on-chip-debug capability shortens development cycles. Typical applications include automotive body and LIN sub-network nodes, CAN-based ECU modules, motor control with the PSC, and sensor interfaces using the 8-channel 10-bit ADC. Designers should verify CAN/LIN transceivers externally, since the controllers provide the protocol logic only. When selecting between speed grades, the -15 suffix denotes the 150C-rated automotive temperature class; the same die is offered in TQFP for cost-sensitive builds. This page synthesizes distributor stock data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for ATMEGA16M1-15MD 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:
ATMEGA32M1-15MD
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA64M1-15MD
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA32C1-15MD
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA64C1-15MD
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
ATMEGA16M1-15MD Maximum Ratings & Electrical Characteristics
| Core Architecture | AVR 8-bit RISC |
| Data Bus Width | 8 Bit |
| Flash Program Memory | 16 KB (self-programming) |
| SRAM | 1 KB |
| EEPROM | 512 B |
| Clock Speed | 8 MHz |
| Instruction Set | 133 instructions, mostly single-cycle |
| Supply Voltage | 2.7 V to 5.5 V |
| I/O Ports | 53 (family maximum) |
| CAN Controller | Yes, 6 message objects |
| LIN Controller | Yes |
| ADC | 8-channel, 10-bit |
| ADC Operating Range | -40C to +150C at VCC = 4.5 V to 5.5 V |
| Debug Interface | JTAG on-chip-debug / ICSP |
| Package | 32-QFN |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +150C |
| Lifecycle Stage | Active |
ATMEGA16M1-15MD 32-qfn Pin Configuration Guide
Pin configuration for ATMEGA16M1-15MD (32-qfn 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 ATMEGA16M1-15MD.
Refer to the datasheet for full pin configuration.
Typical Applications
ATMEGA16M1-15MD is suitable for 6 applications: Automotive Body Control Modules, LIN Sub-Network Slave Nodes, DC Motor Control with PSC, Industrial CAN Sensor Nodes, Automotive Lighting Modules, High-Temperature Embedded Control.
Automotive Body Control Modules
The ATMEGA16M1-15MD fits automotive body electronics because it combines a CAN controller with six message objects and a LIN controller on a single -40C to +150C rated die, eliminating a second network MCU in door, seat, and lighting modules. In a typical node, the CAN block handles the vehicle backbone at the module gateway while the LIN block drives low-cost sub-bus peripherals such as mirror motors and interior lighting, and the 53 family I/O lines plus 10-bit ADC read switch banks and analog position sensors. Powered at 5 V from a car-line regulator, the ADC retains 10-bit accuracy across the full automotive temperature range per datasheet characterization. The Power Stage Controller can also generate complementary PWM for lamp dimming or small actuator control. Code stored in 16 KB self-programming Flash can be field-updated, supporting in-service firmware fixes without replacing the module.
Recommended
LIN Sub-Network Slave Nodes
As a LIN slave node controller, the ATMEGA16M1-15MD is appropriate because its hardware LIN controller offloads the LIN 2.x protocol framing, synchronization, and checksum handling from the CPU, letting the 8 MHz AVR core dedicate cycles to application logic. The -15 automotive grade guarantees operation to +150C, covering LIN clusters located near engines, transmissions, or in direct-sun dashboard zones where standard commercial MCUs exceed their limits. The 10-bit ADC reads analog node inputs such as wiper position or coolant level sensors, with accuracy specified at VCC 4.5 V to 5.5 V. Six CAN message objects remain available so the same firmware family can serve dual-network nodes. The 16 KB Flash is generally sufficient for LIN slave application code plus diagnostics, and the JTAG on-chip-debug port enables breakpoints during node bring-up without extra instrumented firmware.
Recommended
DC Motor Control with PSC
The ATMEGA16M1-15MD suits DC and BLDC motor control because its Power Stage Controller generates complementary PWM pairs with programmable dead time, directly driving external gate drivers or smart power stages for H-bridge and three-phase topologies. The 8-channel 10-bit ADC samples shunt-resistor current or BEMF signals for commutation and protection, with single-ended accuracy characterized from -40C to +150C at VCC 4.5 V to 5.5 V, enabling under-hood fan, pump, and actuator drives. Because the PSC runs in hardware, PWM output quality does not degrade when the 8 MHz core handles CAN communication or LIN diagnostics concurrently. The 16 KB Flash holds commutation tables, PI current-loop code, and fault handlers. Automotive temperature rating plus CAN connectivity make it a strong fit for vehicle motor modules where the controller must also report status onto the vehicle network.
Recommended
Industrial CAN Sensor Nodes
For industrial field nodes on a CANopen- or DeviceNet-style CAN bus, the ATMEGA16M1-15MD provides a cost-effective controller: the hardware CAN block with six message objects manages identifier filtering and mailbox traffic, leaving the 8 MHz AVR core free to service sensors and control loops. The 8-channel 10-bit ADC digitizes up to eight analog sensor inputs such as pressure bridges, thermistors, or 4-20 mA signals after level conversion, with datasheet accuracy tables supporting stable conversion over a 2.7 V to 5.5 V supply. The wide 2.7 V to 5.5 V operating range tolerates noisy industrial 24 V systems when fed from a simple buck or linear regulator. 512 B EEPROM stores calibration constants and node identifiers across power cycles, and JTAG-based on-chip-debug accelerates firmware commissioning at the machine. The -40C rating suits unheated outdoor cabinets and cold-chain equipment.
Recommended
Automotive Lighting Modules
The ATMEGA16M1-15MD fits exterior and interior automotive lighting controllers where LIN or CAN command reception must be combined with PWM intensity control and fault diagnostics. Using the Power Stage Controller for high-resolution dimming of LED strings or bulb drivers, and the LIN/CAN controllers to receive headlight or ambient-lighting commands from the body controller, a single MCU covers the entire module logic. The 10-bit ADC reads current-sense and thermistor feedback to implement LED over-temperature derating, a common regulatory requirement, with accuracy maintained across the -40C to +150C ambient range the datasheet specifies. Sixteen KB of self-programming Flash accommodates lighting protocol stacks with room for diagnostic services, while the 53-line family I/O supports switch inputs and status outputs. JTAG on-chip-debug supports compliance testing cycles during module development.
Recommended
High-Temperature Embedded Control
In down-hole instrumentation, e-mobility power electronics, and industrial process sensing where ambient temperatures exceed +105C, the ATMEGA16M1-15MD offers a rare combination: a low-cost 8-bit AVR rated to +150C with a self-contained 16 KB Flash, 1 KB SRAM, and 512 B EEPROM storage subsystem. Datasheet ADC characterization explicitly covers single-ended operation at TA = -40C to +150C with VCC = 4.5 V to 5.5 V, so analog measurements remain trustworthy at the upper thermal extreme. The CAN controller allows communication with supervisory controllers over a robust differential link, and 53 family I/O lines drive local relays and indicators. Because EEPROM data retention and Flash endurance are specified for the automotive grade, logged data and calibration survive the thermal environment. Designers should derate clock frequency per the datasheet frequency-versus-voltage curve at 150C.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA16M1-15MD β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA32M1-15MD | ATMEGA64M1-15MD | ATMEGA32C1-15MD |
|---|---|---|---|---|
| Package | 32-QFN | 32-QFN - same | 32-QFN - same | 32-QFN - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16 KB | 32 KB | 64 KB | 32 KB |
| 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 |
| CAN Controller | Yes, 6 message objects | Yes, 6 message objects | Yes, 6 message objects | Yes, 6 message objects |
| LIN Controller | Yes | Yes | Yes | No (C1 = CAN-only variant) |
| Operating Temperature | -40C to +150C | -40C to +150C | -40C to +150C | -40C to +150C |
| ADC | 8-channel, 10-bit | 8-channel, 10-bit | 8-channel, 10-bit | 8-channel, 10-bit |
Key Differentiators
- Integrated CAN plus LIN on one die (vs ATMEGA32C1-15MD)
- 150C automotive temperature grade (vs ATMEGA168PA-MU)
- Hardware Power Stage Controller (vs ATMEGA64M1-15MD)
Design Notes
Power the ATMEGA16M1-15MD from a clean 5 V rail when ADC accuracy matters: the datasheet ADC characterization tables specify single-ended 10-bit accuracy at VCC = 4.5 V to 5.5 V with VRef = 2.56 V over -40C to +150C. Running at 3.3 V is allowed by the 2.7 V to 5.5 V supply range but requires rechecking the frequency-versus-voltage derating curve at the target clock. Decouple VCC and AVCC with 100 nF ceramics placed within 2 mm of each pin, plus 4.7 uF bulk at the supply entry.
The 32-QFN package exposes a thermal pad that must be soldered to a grounded copper area, which is doubly important in this automotive part because junction environments up to +150C leave little thermal margin. Estimated: even modest internal dissipation of 50 mW at theta_JA typical for a 32-QFN (order of 40 C/W with a solid ground plane) yields roughly 2 C rise - acceptable - but a floating pad dramatically worsens this and risks reflow voiding. Connect the pad to the ground plane with a 3x3 via array and follow the datasheet land-pattern dimensions exactly.
Do not confuse package variants when sourcing: ATMEGA16M1-15MD is the 32-QFN build, while related order codes in the family (for example the -15AZ-style suffixes) are 14 x 14 mm TQFP and are NOT footprint-compatible. Also confirm the CAN and LIN transceivers are separate external components - the on-chip controllers provide protocol logic only, so a missing transceiver is the most frequent bring-up failure. Verify fuse settings for the 8 MHz clock source before relying on UART/LIN baud timing, and use JTAG or ICSP (MPLAB SNAP) for initial programming.
Compliance Information
The verified web data describes the ATmega16M1/32M1/32C1/64M1/64C1 Automotive Specification at 150C (datasheet appendix), indicating automotive qualification for the family; specific RoHS/REACH/lead-free declarations were not present in the provided data and should be confirmed on the Microchip product page.
