ATSAML22N17A-AUT - 32MHz M0+ 128KB Flash MCU | Microchip
Артикул: ATSAML22N17A-AUT ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $5.82 | $5,82 |
| 10 | $5.24 | $52,40 |
| 100 | $4.66 | $466,00 |
| 500 | $4.2 | $2.100,00 |
| 1.000 | $3.75 | $3.750,00 |
ATSAML22N17A-AUT Обзор
An ultra-low-power microcontroller (MCU) is a class of embedded controller that integrates a CPU core, memory, and peripherals while optimizing every operating mode for minimum energy consumption. Within the semiconductor taxonomy, an MCU belongs to microcontrollers -> integrated circuits -> semiconductors. The SAM L22 family specifically targets battery-powered metering, medical, and IoT applications where the segment LCD driver eliminates the cost and current drain of an external display controller.
Key features of the ATSAML22N17A-AUT include 39 uA/MHz active current running CoreMark, a deep-sleep backup mode drawing only 490 nA with RTC retention, a 12-bit ADC, multiple SERCOM interfaces, a full-speed USB device, and a hardware segmented LCD controller with integrated charge pump. The device also provides a 32 kHz RTC, multiple timers, and an event system for low-power peripheral signaling without CPU intervention.
The architecture combines an ARM Cortex-M0+ core with single-cycle I/O access, a dedicated LCD segment driver peripheral, and a sophisticated power management unit featuring eight distinct sleep modes. The integrated charge pump allows direct biasing of 3V or 5V LCD glass from a single Li-ion cell, simplifying meter and appliance front-panel designs.
Typical applications include electricity meters, water/gas meters with LCD readouts, medical monitoring devices, industrial sensor nodes, and battery-powered IoT terminals. The combination of segment LCD, USB, and sub-microamp backup current makes the part especially well-suited to portable metering and wearable health devices.
When designing with this part, ensure that decoupling capacitance is placed within 5 mm of each VDD pin pair and that the segment LCD bias network follows the reference schematic in the datasheet. The AUT suffix indicates tape-and-reel packaging for high-volume assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single decision-ready view of the ATSAML22N17A-AUT and its pin-compatible peers.
Аналоги без доработки для ATSAML22N17A-AUT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ATSAML22N17A-AUT (тот же форм-фактор и посадочное место) — отличается по RoHS Status, ADC, Core, Maximum Clock Frequency, Operating Temperature.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ATSAML22N18A-AUT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ATSAML22N16A-AUT
✅ Прямая замена✓ В наличии
$2.85 / шт.
Открыть даташит →ATSAML22J17A-AUT
✅ Прямая замена ⚠️ Характеристики не проверены📋 Справочный аналог (нет в каталоге)
ATSAM4LS2CA-AU
✅ Прямая замена✓ В наличии
$3.95 / шт.
Открыть даташит →ATSAM4LS2CA-AUR
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ATSAML22N17A-AUT Максимальные параметры и электрические характеристики
| Core | ARM Cortex-M0+ 32-bit |
| Max CPU Speed | 32 MHz |
| Program Memory (Flash) | 128 KB (128K x 8) |
| SRAM | 16 KB |
| Supply Voltage (VDD) | 1.6 V to 3.6 V |
| Active Current (CoreMark) | 39 uA/MHz |
| Backup Mode Current (RTC retained) | 490 nA |
| Рабочая температура | -40C to +85C |
| Корпус | 100-pin TQFP (14x14 mm) |
| Тип монтажа | Surface Mount |
| LCD Segments | Up to 320 |
| ADC | 12-bit |
| USB | Full-Speed USB Device |
| Статус RoHS | Compliant |
Конфигурация выводов ATSAML22N17A-AUT
| Контакт 1 | PA00 — GPIO / SERCOM1 PAD0 |
| Контакт 2 | PA01 — GPIO / SERCOM1 PAD1 |
| Контакт 3 | PA02 — GPIO / AIN0 (ADC input) |
| Контакт 4 | PA03 — GPIO / AIN1 (ADC input) |
| Контакт 5 | GND — Ground |
| Контакт 6 | VDD — Digital supply 1.6-3.6 V |
| Контакт 7 | PA04 — GPIO / AIN2 / VREF |
| Контакт 8 | PA05 — GPIO / AIN3 |
| Контакт 9 | PA06 — GPIO / AIN4 |
| Контакт 10 | PA07 — GPIO / AIN5 |
| Контакт 11 | VDDIO — I/O supply |
| Контакт 12 | GND — Ground |
| Контакт 13 | PA08 — GPIO / SERCOM0 PAD0 / I2S |
| Контакт 14 | PA09 — GPIO / SERCOM0 PAD1 / I2S |
| Контакт 15 | PA10 — GPIO / SERCOM2 PAD2 |
| Контакт 16 | PA11 — GPIO / SERCOM2 PAD3 |
| Контакт 17 | PA12 — GPIO / SERCOM4 PAD0 / I2S |
| Контакт 18 | PA13 — GPIO / SERCOM4 PAD1 / I2S |
| Контакт 19 | PA14 — GPIO / SERCOM2 PAD0 |
| Контакт 20 | PA15 — GPIO / SERCOM2 PAD1 |
| Контакт 21 | PA16 — GPIO / SERCOM1 PAD2 / I2S |
| Контакт 22 | PA17 — GPIO / SERCOM1 PAD3 / I2S |
| Контакт 23 | PA18 — GPIO / SERCOM3 PAD2 |
| Контакт 24 | PA19 — GPIO / SERCOM3 PAD3 |
| Контакт 25 | PA20 — GPIO / SERCOM5 PAD2 |
| Контакт 26 | PA21 — GPIO / SERCOM5 PAD3 |
| Контакт 27 | PA22 — GPIO / SERCOM3 PAD0 |
| Контакт 28 | PA23 — GPIO / SERCOM3 PAD1 |
| Контакт 29 | PA24 — GPIO / SERCOM5 PAD0 / USB D- |
| Контакт 30 | PA25 — GPIO / SERCOM5 PAD1 / USB D+ |
| Контакт 31 | GND — Ground |
| Контакт 32 | VDD — Digital supply 1.6-3.6 V |
| Контакт 33 | PA26 — GPIO |
| Контакт 34 | PA27 — GPIO |
| Контакт 35 | PA28 — GPIO / SEG53 LCD |
| Контакт 36 | PA29 — GPIO / SEG52 LCD |
| Контакт 37 | PA30 — GPIO / SWCLK (programming) |
| Контакт 38 | PA31 — GPIO / SWDIO (programming) |
| Контакт 39 | PB00 — GPIO / SEG51 LCD |
| Контакт 40 | PB01 — GPIO / SEG50 LCD |
| Контакт 41 | PB02 — GPIO / SERCOM5 PAD0 |
| Контакт 42 | PB03 — GPIO / SERCOM5 PAD1 |
| Контакт 43 | PB04 — GPIO / SEG49 LCD |
| Контакт 44 | PB05 — GPIO / SEG48 LCD |
| Контакт 45 | PB06 — GPIO / SEG47 LCD |
| Контакт 46 | PB07 — GPIO / SEG46 LCD |
| Контакт 47 | PB08 — GPIO / SEG45 LCD / I2S |
| Контакт 48 | PB09 — GPIO / SEG44 LCD / I2S |
| Контакт 49 | PB10 — GPIO / SEG43 LCD |
| Контакт 50 | PB11 — GPIO / SEG42 LCD |
| Контакт 51 | PB12 — GPIO / SEG41 LCD |
| Контакт 52 | PB13 — GPIO / SEG40 LCD |
| Контакт 53 | PB14 — GPIO / SEG39 LCD |
| Контакт 54 | PB15 — GPIO / SEG38 LCD |
| Контакт 55 | PC00 — GPIO / SEG37 LCD |
| Контакт 56 | PC01 — GPIO / SEG36 LCD |
| Контакт 57 | PC02 — GPIO / SEG35 LCD |
| Контакт 58 | PC03 — GPIO / SEG34 LCD |
| Контакт 59 | PC04 — GPIO / SEG33 LCD |
| Контакт 60 | PC05 — GPIO / SEG32 LCD |
| Контакт 61 | PC06 — GPIO / SEG31 LCD |
| Контакт 62 | PC07 — GPIO / SEG30 LCD |
| Контакт 63 | VDDIO — I/O supply |
| Контакт 64 | GND — Ground |
| Контакт 65 | PC08 — GPIO / SEG29 LCD |
| Контакт 66 | PC09 — GPIO / SEG28 LCD |
| Контакт 67 | PC10 — GPIO / SEG27 LCD / COM5 |
| Контакт 68 | PC11 — GPIO / SEG26 LCD / COM4 |
| Контакт 69 | PC12 — GPIO / SEG25 LCD / COM3 |
| Контакт 70 | PC13 — GPIO / SEG24 LCD / COM2 |
| Контакт 71 | PC14 — GPIO / SEG23 LCD / COM1 |
| Контакт 72 | PC15 — GPIO / SEG22 LCD / COM0 |
| Контакт 73 | PC16 — GPIO / SEG21 LCD |
| Контакт 74 | PC17 — GPIO / SEG20 LCD |
| Контакт 75 | PC18 — GPIO / SEG19 LCD |
| Контакт 76 | PC19 — GPIO / SEG18 LCD |
| Контакт 77 | PC20 — GPIO / SEG17 LCD |
| Контакт 78 | PC21 — GPIO / SEG16 LCD |
| Контакт 79 | PC22 — GPIO / SEG15 LCD |
| Контакт 80 | PC23 — GPIO / SEG14 LCD |
| Контакт 81 | PC24 — GPIO / SEG13 LCD |
| Контакт 82 | PC25 — GPIO / SEG12 LCD |
| Контакт 83 | PC26 — GPIO / SEG11 LCD |
| Контакт 84 | PC27 — GPIO / SEG10 LCD |
| Контакт 85 | PC28 — GPIO / SEG9 LCD |
| Контакт 86 | PC29 — GPIO / SEG8 LCD |
| Контакт 87 | PC30 — GPIO / SEG7 LCD |
| Контакт 88 | PC31 — GPIO / SEG6 LCD |
| Контакт 89 | PD00 — GPIO / SEG5 LCD |
| Контакт 90 | PD01 — GPIO / SEG4 LCD |
| Контакт 91 | PD02 — GPIO / SEG3 LCD |
| Контакт 92 | PD03 — GPIO / SEG2 LCD |
| Контакт 93 | PD04 — GPIO / SEG1 LCD |
| Контакт 94 | PD05 — GPIO / SEG0 LCD |
| Контакт 95 | PD06 — GPIO |
| Контакт 96 | PD07 — GPIO |
| Контакт 97 | VDD — Digital supply 1.6-3.6 V |
| Контакт 98 | GND — Ground |
| Контакт 99 | VDDCORE — Internal core supply (decouple 1uF) |
| Контакт 100 | RESET — Reset input, active low |
Типичное применение
ATSAML22N17A-AUT подходит для 6 применениеs: Electricity Meter with Segment LCD, Water and Gas Meter with LCD Display, Battery-Powered Medical Monitor, Industrial Sensor Node with USB Diagnostics, Wearable Health and Fitness Device, IoT Edge Node with LCD Status Display.
Electricity Meter with Segment LCD
The ATSAML22N17A-AUT is purpose-built for single-phase and three-phase electricity meters where the integrated segment LCD controller drives up to 320 segments for kWh, voltage, current, and tariff readouts. With 39 uA/MHz active current and 490 nA backup, it sustains 10+ years of battery or capacitor-backed operation. The Cortex-M0+ core runs metering algorithms and the integrated 12-bit ADC samples voltage and current channels. The same 100-pin TQFP footprint supports family migration to ATSAML22N18A-AUT for added Flash headroom.
Рекомендуется
Water and Gas Meter with LCD Display
The ATSAML22N17A-AUT drives a 4- or 8-compartment mechanical register through its segment LCD peripheral and counts pulses from a reed switch or Hall sensor via a GPIO interrupt. The 490 nA backup mode with RTC retains time and consumption data during primary cell replacement. 128 KB Flash fits wireless M-Bus or LoRaWAN stacks when paired with an external transceiver. The 100-pin TQFP provides ample GPIO for tamper switches, optical interfaces, and valve control outputs.
Рекомендуется
Battery-Powered Medical Monitor
The ATSAML22N17A-AUT suits portable medical devices such as glucose meters, pulse oximeters, and body temperature monitors where battery life and a clear numeric LCD display are essential. Its 12-bit ADC captures sensor data, the segment LCD shows measurement results without a separate driver IC, and the 1.6-3.6 V range accepts direct Li-ion or 2x AA cells. Hardware crypto on the J-variant or AES on the L22J enables secure patient data storage where required.
Рекомендуется
Industrial Sensor Node with USB Diagnostics
The ATSAML22N17A-AUT integrates a full-speed USB device that engineers can use for firmware update and diagnostic logging without an external bridge IC. In industrial 4-20 mA sensor heads, the 12-bit ADC and multiple SERCOM channels (I2C/SPI/UART) connect to MEMS sensors and isolated transceivers. The wide -40C to +85C operating range supports factory-floor deployment, and the 100-pin TQFP provides a rugged leaded package for harsh environments.
Рекомендуется
Wearable Health and Fitness Device
Wearable step counters, heart-rate monitors, and thermometer watches leverage the ATSAML22N17A-AUT for sub-microamp standby between sensor samples and an integrated segment LCD for time and metric display. The 32 MHz Cortex-M0+ executes BLE stack stubs and HRM algorithms within 39 uA/MHz, while 490 nA backup mode keeps the RTC alive overnight. The 100-pin TQFP package suits small form-factor wearable PCBs where exposed lead reliability matters.
Рекомендуется
IoT Edge Node with LCD Status Display
IoT edge devices such as smart thermostats, room controllers, and HVAC user interfaces benefit from the ATSAML22N17A-AUT's segment LCD up to 320 segments and multiple SERCOM channels for sensor and radio connectivity. The Cortex-M0+ runs FreeRTOS or ASF firmware, the 128 KB Flash holds TCP/IP and MQTT stacks, and the 1.6-3.6 V range accepts 3.3 V system rails directly. The 100-pin TQFP is convenient for hand-soldered prototypes and production assemblies alike.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ATSAML22N17A-AUT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ATSAML22N18A-AUT | ATSAML22N16A-AUT | ATSAML22J17A-AUT | ATSAM4LS2CA-AU |
|---|---|---|---|---|---|
| Package | TQFP-100 (14x14) | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same | TQFP-100 (14x14) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M0+ | ARM Cortex-M4F |
| Max Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 48 MHz |
| Flash | 128 KB | 256 KB | 64 KB | 128 KB | 128 KB |
| SRAM | 16 KB | 32 KB | 8 KB | 16 KB | 32 KB |
| LCD Segments | 320 | 320 | 320 | 320 | None |
| Active Current | 39 uA/MHz | 39 uA/MHz | 39 uA/MHz | 39 uA/MHz | 90 uA/MHz |
| Backup Current | 490 nA | 490 nA | 490 nA | 490 nA | 1500 nA |
Ключевые отличия
- Integrated segment LCD controller with 320 segments (против ATSAM4LS2CA-AU)
- Sub-500 nA backup mode with RTC retention (против ATSAM4LS2CA-AU)
- Scalable Flash footprint across the SAM L22 family (против ATSAML22N18A-AUT)
Заметки по проектированию
Place a 1uF X7R ceramic decoupling capacitor within 5 mm of the VDDCORE pin (pin 99) and a 100 nF X7R within 5 mm of each VDD/VDDIO pair (pins 6, 11, 32, 63, 97). The VDDCORE pin is internally regulated and must not be driven externally. Use a star-ground topology connecting all GND pins to a single copper pour under the TQFP thermal pad to avoid ground bounce during LCD charge-pump switching.
The segment LCD charge pump uses external VLCD and HPM pins; consult the reference schematic in the SAM L22 datasheet section 'LCD Controller'. Using incorrect reservoir capacitor values (< 1uF) on HPM causes ghosting segments. Do not enable the LCD controller before configuring the GPIO mux for SLCD_COM and SLCD_SEG functions, otherwise the segment pins default to GPIO and can drive the LCD glass incorrectly.
Route the USB DP and DM pair (PA24, PA25) as a 90-ohm differential pair with length matching within 2 mm. Place the 27 ohm series damping resistors close to the MCU side and keep the pair away from switching power traces. For PCB layout, fan out the 100-pin TQFP on both sides with 0.2 mm trace width minimum to reach inner escape layers; the 14x14 mm package offers generous routing channels for 4-layer stack-ups.
Информация о соответствии
RoHS and REACH compliance per Microchip product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified (use ATSAML22N17A-AUT automotive variant for vehicle applications if available).
