Microchip Technology ATSAMC20N18A-ANT

Mfr. Part

ATSAMC20N18A-ANT

Manufacturer

Micrel / Microchip Technology

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Detailed Description

32-bit ARM Cortex-M0+ microcontroller from the SAM C20 series with 256KB Flash and 32KB SRAM, 48MHz max speed, 84 programmable I/O, and wide 2.7V to 5.5V supply. Industrial temperature rating (-40°C to 105°C). 100-pin TQFP (14x14mm) package. RoHS3 compliant. Supplied in Tape & Reel. Current stock: 2633 units.

Key Features

ARM Cortex-M0+ core, single-core 32-bit

48MHz CPU clock

256KB Flash, 32KB SRAM

84 I/O lines on 100-pin TQFP (14x14mm)

12-channel, 12-bit ADC (A/D 12x12b)

Peripherals: DMA, Brown-out Detect/Reset (BOD), Power-On Reset (POR), Watchdog (WDT)

Connectivity: I2C, LINbus, SPI, UART/USART

Internal oscillator

Supply voltage: 2.7V to 5.5V (5V-capable SAM C family)

Operating temperature: -40°C to +105°C (TA)

RoHS3 compliant

Mounting: Surface Mount (SMT)

Series: SAM C20

Base product number: ATSAMC20

Key Advantages

Wide 2.7V–5.5V operation supports 5V systems and noisy industrial environments

High pin count with 84 I/O gives flexible peripheral and sensor interfacing

Built-in LINbus support for automotive and appliance communication

Low power ARM Cortex-M0+ architecture with internal oscillator simplifies design

Robust safety features (BOD, POR, WDT) improve system reliability

Mature ecosystem and toolchain support (Microchip/Atmel tools, libraries)

Industrial temperature range for harsh environments

RoHS3 compliance for global regulatory needs

Packaging

Type: 100-pin TQFP (Thin Quad Flat Pack)

Material: Epoxy mold compound with copper leadframe; matte tin lead finish (RoHS3)

Size: 14mm x 14mm body; typical TQFP lead pitch ~0.5mm (refer to datasheet for exact mechanicals)

Pin configuration: 100 leads; 84 user I/O available; remaining pins for power, ground, and system functions

Thermal characteristics: Rated for -40°C to +105°C ambient; use the datasheet thermal data (θJA/θJC) for heatsinking and airflow design

Electrical properties (package-related): Surface-mount device optimized for reflow; ESD and moisture sensitivity ratings per datasheet

Shipment format: Tape & Reel (TR) for automated assembly

Lifecycle

Status: Active and widely used; not nearing discontinuation based on current Microchip guidance

Drop-in or close alternatives (check pin and feature compatibility in datasheet):

- ATSAMC20N18A (other order codes/options)

- ATSAMC20N17A (128KB Flash, same family/pin class)

- ATSAMC20N16A (64KB Flash, same family/pin class)

- ATSAMC21N18A (adds CAN/CAN-FD features; similar pin class, verify compatibility)

- ATSAMD20N18A (3.3V-oriented alternative; similar core/frequency, verify supply and pin compatibility)

If you need exact equivalents or long-term supply planning, contact our sales team via Y-IC’s website for the latest cross-reference and lifecycle updates

Key Application Areas

Industrial control and factory automation

Home appliances and white goods with LIN communication

Automotive LIN nodes and body electronics (non-safety critical)

Building automation and HVAC controllers

5V logic interfacing, relays, and motor control

Smart sensors, data acquisition with 12-bit ADC

IoT edge devices needing robust 5V operation

Datasheet

Y-IC provides the most authoritative and up-to-date datasheet for ATSAMC20N18A-ANT on our product page. We recommend downloading it now to access full specifications, pinouts, mechanicals, and design guidelines.

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