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ATMEGA16M1-15MD
Microchip Technology
IC MCU 8BIT 16KB FLASH 32QFN
5221 Pcs New Original In Stock
AVR AVR® ATmega Microcontroller IC 8-Bit 16MHz 16KB (8K x 16) FLASH 32-QFN (7x7)
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5.0 / 5.0
- (74 Ratings)
ATMEGA16M1-15MD
Product Overview
1424795
DiGi Electronics Part Number
ATMEGA16M1-15MD-DGManufacturer
Microchip Technology
ATMEGA16M1-15MD
Description
IC MCU 8BIT 16KB FLASH 32QFNInventory
5221 Pcs New Original In Stock
AVR AVR® ATmega Microcontroller IC 8-Bit 16MHz 16KB (8K x 16) FLASH 32-QFN (7x7)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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ATMEGA16M1-15MD Technical Specifications
Category
Embedded, Microcontrollers
Packaging
-
Series
AVR® ATmega
Product Status
Active
DiGi-Electronics Programmable
Not Verified
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
CANbus, LINbus, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
EEPROM Size
512 x 8
RAM Size
1K x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 5.5V
Data Converters
A/D 11x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 150°C (TA)
Grade
Automotive
Qualification
AEC-Q100
Mounting Type
Surface Mount
Supplier Device Package
32-QFN (7x7)
Package / Case
32-VQFN Exposed Pad
Base Product Number
ATMEGA16
Datasheet & Documents
HTML Datasheet
ATMEGA16M1-15MD-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
3A001A2A
HTSUS
8542.31.0001
Additional Information
Other Names
ATMEGA16M115MD
1611-ATMEGA16M1-15MDDKRINACTIVE
1611-ATMEGA16M1-15MDDKR-DG
1611-ATMEGA16M1-15MDTRINACTIVE
ATMEGA16M1-15MDCT
ATMEGA16M1-15MDDKR
1611-ATMEGA16M1-15MDDKR
1611-ATMEGA16M1-15MDTR
ATMEGA16M1-15MDTR
1611-ATMEGA16M1-15MDCTINACTIVE
ATMEGA16M1-15MD-DG
1611-ATMEGA16M1-15MDTR-DG
Standard Package
4,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
我已經是這家店的長期客戶，因為商品穩定且價格優惠，非常符合我的預算。
de desembre 02, 2025
The packaging was professional and flawless, giving confidence in the quality of the product inside.
de desembre 02, 2025
DiGi Electronics' diverse product lineup helps foster long-term customer relationships.
de desembre 02, 2025
Packaging was simple, recyclable, and showed a clear effort to protect the environment.
de desembre 02, 2025
Thanks to their competitive pricing, we can invest more in innovation.
de desembre 02, 2025
DiGi Electronics' support team goes above and beyond to assist with my inquiries.
de desembre 02, 2025
Their after-sales team went above and beyond to assist me with post-purchase questions, which I greatly appreciated.
de desembre 02, 2025
Checkout is so fast I can complete my shopping in just minutes.
de desembre 02, 2025
The site design is clean and intuitive, enriching the overall shopping experience.
de desembre 02, 2025
Fantastic prices that make upgrading my gadgets stress-free.
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Frequently Asked Questions (FAQ)
What are the key reliability risks when using the ATMEGA16M1-15MD in high-vibration automotive environments, and how can PCB layout mitigate them?
The ATMEGA16M1-15MD is AEC-Q100 qualified and rated for -40°C to 150°C operation, making it suitable for under-hood automotive applications. However, its 32-QFN package with an exposed pad is susceptible to solder joint fatigue under sustained high vibration. To mitigate this, ensure proper thermal pad soldering with adequate via stitching to the ground plane, use conformal coating to reduce mechanical stress on leads, and avoid mounting the device near high-frequency switching components that induce board flex. Additionally, follow IPC-7351 land pattern guidelines for QFN footprints to maximize solder joint integrity over thermal and mechanical cycling.
Can the ATMEGA16M1-15MD safely replace an older ATmega16L-16AU in a 3.3V industrial sensor node without firmware changes?
While both the ATMEGA16M1-15MD and ATmega16L-16AU are 8-bit AVR MCUs with 16KB Flash, direct replacement isn't guaranteed without validation. The ATMEGA16M1-15MD supports 2.7V–5.5V operation and runs up to 16MHz at 3.3V, unlike the ATmega16L which typically maxes at 8MHz at 3.3V. This means timing-sensitive code (e.g., bit-banged protocols or delay loops) may run twice as fast, causing communication errors. Additionally, the M1 variant includes CAN and LIN peripherals not present on the L series, which could affect register mapping if legacy firmware assumes different peripheral layouts. Always recompile and test firmware under real-world conditions, and verify oscillator stability using the internal RC calibrated for 3.3V.
How does the internal oscillator accuracy of the ATMEGA16M1-15MD impact CAN bus communication in automotive applications, and should an external crystal be used?
The ATMEGA16M1-15MD uses a factory-calibrated internal 8MHz RC oscillator (±2% at 3.3V, 25°C), but this drifts beyond ±5% over its full -40°C to 150°C range—exceeding the ±1.5% tolerance required by ISO 11898 for reliable CAN communication. In safety-critical or multi-node automotive networks, this drift can cause bit timing errors and bus-off conditions. For robust CAN operation, especially in engine compartments or cold-start scenarios, use an external ±0.5% accuracy crystal (e.g., 8MHz or 16MHz) with load capacitors matched to the crystal’s specifications. The added BOM cost and board space are justified by significantly improved network reliability and diagnostic pass rates during EMC testing.
What design constraints should be considered when routing the exposed thermal pad of the ATMEGA16M1-15MD on a 2-layer PCB for cost-sensitive automotive designs?
The ATMEGA16M1-15MD’s 32-QFN package requires careful thermal and electrical management of its exposed pad. On a 2-layer PCB, connect the pad directly to a solid ground plane using at least four 0.3mm vias to minimize thermal resistance and ensure stable grounding—critical for ADC accuracy and noise immunity. Avoid splitting the ground plane beneath the device. If thermal dissipation is a concern (e.g., in enclosed modules), increase copper area on both layers connected through vias. Note that insufficient via stitching can lead to hot spots, increased junction temperature, and reduced long-term reliability. Also, ensure solder mask clearance follows Microchip’s recommended stencil design to prevent voiding during reflow, which compromises thermal performance.
Is the ATMEGA16M1-15MD a drop-in replacement for the STM8AF5269 in a LIN-controlled automotive lighting module, and what firmware adaptations are needed?
The ATMEGA16M1-15MD is not a drop-in replacement for the STM8AF5269 due to architectural and peripheral differences. While both support LIN communication and are AEC-Q100 qualified, the STM8 uses a different instruction set, memory map, and peripheral register structure. The ATMEGA16M1-15MD requires recompilation in AVR-GCC or Microchip Studio, and its LIN implementation relies on UART with autobaud detection—unlike STM8’s dedicated LIN UART. Additionally, the ATMEGA16M1 has 11-channel 10-bit ADC vs. STM8’s 10-channel, which may affect sensor input mapping. Power-on reset behavior and watchdog timer configurations also differ. Expect significant firmware rework, especially for low-level drivers and interrupt handling. However, the ATMEGA16M1 offers better toolchain support and debugging via JTAG/SWD, which can accelerate validation in new designs.
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ATMEGA16M1-15MD CAD Models
Microchip Technology ATMEGA16M1-15MD PCB symbols & footprints
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