ATMEGA16L-8MU - 8-bit AVR MCU 16KB Flash 8MHz QFN-44 | Microchip
부품 번호: ATMEGA16L-8MU ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.13 | $6.13 |
| 10 | $6.5 | $65.00 |
| 100 | $7.2 | $720.00 |
| 500 | $8.1 | $4,050.00 |
| 1,000 | $9.8 | $9,800.00 |
ATMEGA16L-8MU 개요
An AVR microcontroller is a family of 8-bit reduced-instruction-set (RISC) MCUs that execute most instructions in a single clock cycle. Within the power-management and embedded-control hierarchy, an MCU like this combines a processor core, program Flash, SRAM, EEPROM, and peripherals such as UART, SPI, TWI (I2C), timers, and a 10-bit ADC into a single chip, replacing multi-chip glue logic in embedded designs.
Key differentiating features include the advanced RISC architecture with 133 powerful instructions, 32 general-purpose working registers, and full static operation. The 16KB self-programmable Flash supports In-System Programming (ISP), enabling field firmware updates without removing the device from the board. The 512B EEPROM retains calibration data and settings through power cycles.
The ATmega16L core pairs a Harvard-architecture AVR core with rich peripherals: two 8-bit and one 16-bit timer with PWM, an 8-channel 10-bit ADC, byte-oriented TWI, SPI serial port, and a programmable serial USART. The exposed-pad QFN package improves ground and thermal performance over the TQFP alternative while shrinking board area to a 7x7 mm footprint for space-constrained products.
Typical applications include industrial automation and sensor nodes, battery-powered portable instrumentation (where the low-voltage 2.7V operation extends battery life), home appliances, lighting and motor control, and embedded education or prototyping platforms built on the well-documented ATmega ecosystem.
Design consideration: the L suffix caps speed at 8MHz; if your firmware requires 16MHz operation, select the standard-grade ATmega16A/ATmega16 part instead, since the L-grade speed limit cannot be exceeded regardless of supply voltage.
This page synthesizes distributor pricing from DigiKey, Mouser, LCSC, and Octopart, drop-in package-compatible alternatives, and practical selection guidance not consolidated in the manufacturer datasheet.
드롭인 대체품: ATMEGA16L-8MU — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ATMEGA16L-8MU (동일 폼 팩터 및 풋프린트) — 차이점: EEPROM Size, Instructions, Package, Program Memory Size, ADC.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ATMEGA16A-MU
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$2.64 / 개
데이터시트 보기 →ATMEGA16L-8MC
✅ 드롭인✓ 재고 있음
$2.21 / 개
데이터시트 보기 →ATMEGA32A-MU
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
가격 문의
데이터시트 보기 →ATMEGA16L-8MU 최대 정격 & 전기적 특성
| Core | AVR 8-bit RISC |
| Program Memory Size | 16KB (8K x 16) Flash |
| Program Memory Type | FLASH (In-System Programmable) |
| EEPROM Size | 512 B (0.5KB) |
| 최대 클록 주파수 | 8 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| 데이터 버스 폭 | 8 bit |
| I/O Pins | 32 |
| Package Type | 44-VQFN (7x7 mm) with Exposed Pad |
| 장착 스타일 | Surface Mount |
| Instructions | 133 (most single-cycle) |
| Life Cycle Stage | Active |
| Product Type | 8-bit Microcontrollers - MCU |
ATMEGA16L-8MU 44-vqfn (7x7 mm) with exposed pad 핀 구성 가이드
ATMEGA16L-8MU(44-vqfn (7x7 mm) with exposed pad 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: ATMEGA16L-8MU.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
ATMEGA16L-8MU 적합 용도: 6 애플리케이션s: Industrial Automation and Control, Battery-Powered Portable Instrumentation, Home Appliances and Consumer Electronics, Motor Control and RC/Hobby Electronics, Embedded Education and Prototyping, IoT Sensor Nodes and Data Loggers.
Industrial Automation and Control
The ATMEGA16L-8MU fits industrial control nodes because its 32 I/O pins, three timers with PWM outputs, and 8-channel 10-bit ADC allow direct sensor and actuator interfacing without external glue logic. Its 2.7V to 5.5V supply range tolerates noisy industrial 5V rails, while the 16KB ISP Flash supports field firmware updates during machine maintenance. In a typical node the MCU reads analog transducers through the ADC, drives relays or PWM actuators, and communicates upstream via the USART or SPI at up to 8MHz system clock. The 44-VQFN 7x7 mm exposed-pad package keeps the controller compact on dense I/O boards, and the exposed pad provides a low-impedance ground reference that improves noise immunity in electrically harsh factory environments.
추천
Battery-Powered Portable Instrumentation
With a 2.7V to 5.5V operating range, the ATMEGA16L-8MU runs directly from a single lithium cell or two alkaline cells without a regulator, extending battery life versus 5V-only MCUs. The L-grade 8MHz clock matches the low-voltage operating envelope, and the AVR core's single-cycle instruction execution delivers efficient MIPS-per-milliamp in duty-cycled measurement loops. The 8-channel 10-bit ADC digitizes sensor bridges and battery-voltage monitors, while the 512B EEPROM stores calibration constants that survive battery replacement. The 512B EEPROM stores calibration constants across power cycles. Designers typically clock the device from an external 32.768kHz crystal or the internal RC oscillator in sleep-heavy applications, waking via timer or external interrupt to measure, log over USART/SPI, and return to power-down mode.
추천
Home Appliances and Consumer Electronics
The ATMEGA16L-8MU serves appliance control boards where a low-cost 8-bit MCU must handle user interfaces, motor PWM, and safety monitoring simultaneously. Its 32 I/O pins drive seven-segment displays, relays, and buttons directly; the 16-bit timer generates PWM for fan or pump speed control; and the 10-bit ADC reads NTC thermistors for over-temperature protection. The 2.7V to 5.5V supply tolerance accommodates cost-optimized linear supplies found in white goods. The 44-pin VQFN 7x7 mm exposed-pad package reduces PCB area in compact control enclosures and improves heat spreading from the die during continuous relay-driving duty. The 16KB self-programmable Flash allows OEMs to ship firmware updates via a bootloader through the appliance's service UART, reducing recall cost across installed fleets.
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Motor Control and RC/Hobby Electronics
The ATMEGA16L-8MU is a proven choice for DC and stepper motor controllers and RC platforms because its three timers produce multiple independent PWM channels while the 8MHz core executes control loops deterministically with single-cycle instructions. The ATmega16 family's peripheral set - including input-capture (PD6/ICP1) for encoder or RC-pulse measurement and external interrupts on PD2/PD3 - enables precise speed and position feedback. Its 10-bit ADC reads current-sense shunts for overcurrent limiting, and the 512B EEPROM retains motor tuning parameters. Many open-source brushless and servo controllers have used this exact die in the 44-VQFN package, so reference firmware is abundant. The exposed-pad ground connection helps contain PWM switching noise on compact driver boards.
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Embedded Education and Prototyping
The ATmega16 family is a staple of embedded-systems coursework because the AVR architecture is simple, fully documented, and programmable via low-cost ISP tools. The ATMEGA16L-8MU's 133-instruction set, 32 general-purpose registers, and clearly mapped peripherals (USART, SPI, TWI, ADC, timers) teach real peripheral bring-up without vendor lock-in. The 16KB Flash is large enough for C-based projects while small enough to teach memory budgeting, and the 512B EEPROM demonstrates nonvolatile storage techniques. The 5V-tolerant, 2.7V-5.5V supply range lets university and maker boards use simple USB or bench supplies. Development requires only an SPI ISP programmer; no debugger hardware is mandatory thanks to serial or LED-based workflows, keeping lab kits inexpensive.
추천
IoT Sensor Nodes and Data Loggers
In distributed IoT nodes, the ATMEGA16L-8MU acts as the sensor-frontend MCU, digitizing up to 8 analog channels with its 10-bit ADC and forwarding packets over SPI or TWI to a radio or Ethernet module. The AVR's power-down sleep modes and low 2.7V operation suit battery- or energy-harvesting-powered loggers that wake on timer or external interrupt, sample, transmit, and sleep again. The 16KB Flash hosts protocol stacks and a bootloader, while 512B EEPROM buffers configuration and calibration data. The 44-VQFN 7x7 mm package fits coin-cell-sized sensor pucks, and the exposed pad anchors a solid ground plane that reduces ADC noise for accurate low-level sensor readings. Its long availability and multi-source distributor stock simplify fleet maintenance.
추천
추천 제품 요약
엔지니어링 참조 데이터: ATMEGA16L-8MU — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ATMEGA16A-MU | ATMEGA16L-8MC | ATMEGA32A-MU |
|---|---|---|---|---|
| Package | 44-VQFN (7x7 mm) Exposed Pad | 44-VQFN (7x7 mm) Exposed Pad - same | 44-VQFN EP - same | 44-VQFN (7x7 mm) - same footprint |
| Brand | Microchip Technology (Atmel) | Microchip Technology | Microchip Technology (Atmel) | Microchip Technology |
| Program Flash | 16KB (8K x 16) | 16KB | 16KB | 32KB |
| EEPROM | 512 B | 512 B | 512 B | 1 KB |
| Max Clock Frequency | 8 MHz (L-grade) | 16 MHz | 8 MHz | 16 MHz |
| 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 |
| I/O Pins | 32 | 32 | 32 | 32 |
| Lifecycle Status | Active | Active (recommended newer device) | Active / Not Recommended for new designs | Active |
주요 차별점
- Low-voltage L-grade operation to 2.7V (vs ATMEGA16A-MU)
- Exposed-pad VQFN package saves space and improves grounding (vs ATMEGA16L-8MI)
- Same footprint with a performance upgrade path (vs ATMEGA32A-MU)
설계 노트
Decouple VCC and AVCC with 0.1uF ceramic capacitors placed within a few millimeters of each pin, plus a 4.7uF to 10uF bulk capacitor near the device. Connect AVCC to VCC through a low-pass LC filter when using the ADC in noisy environments, and never leave AVCC unconnected even if the ADC is unused. The exposed pad on the 44-VQFN should be soldered to a solid ground plane; per the datasheet it is the primary ground connection in the MLF package, not merely a thermal feature.
The 44-VQFN (7x7 mm) requires a land pattern matching the datasheet MLF drawing with an exposed-pad aperture of roughly 3.5-4 mm for reliable solder wicking. Use via stitching (4-9 vias) under the exposed pad to the ground plane for lowest inductance. If migrating between MU (QFN) and MI (TQFP) versions, note the footprints differ - a QFN land pattern cannot accept a TQFP and vice versa. Inspect QFN joints with X-ray or angled microscopy since perimeter pads are partially hidden.
Do not clock the L-grade part above 8MHz - the '-8' suffix is a hard speed-grade limit, unlike the standard ATmega16A which runs to 16MHz. Configure fuse bits carefully: setting SPIEN incorrectly or disabling RESET as an I/O pin can lock out further ISP programming; a JTAG programmer or high-voltage parallel programmer is then required for recovery. Also disable the JTAG interface via the JTD bit or fuse if PC2-PC5 are needed as general I/O, since JTAG is enabled by default.
규정 준수 정보
Compliance status not explicitly stated in the provided web data; verify on the Microchip product page or certificate of conformance before procurement.