Microchip Technology ATSTK600-RC22

Overview

ATSTK600-RC22 from Microchip Technology (formerly Atmel) is a full-featured development kit for the AT32UC3L064/032/016 family of 32-bit AVR UC microcontrollers. It supports on-board debugging via JTAG and aWire, provides configurable power domains (VDDIO/VDDCORE/VDDANA), includes socketed TQFP48 target interface, and enables rapid evaluation of picoPower® low-power operation, capacitive touch (QTouch®/QMatrix®), PWM, ADC, USART/SPI/TWI peripherals, and real-time clock functionality in embedded control applications.

For engineers reviewing the ATSTK600-RC22 datasheet, ATSTK600-RC22 pinout, ATSTK600-RC22 application, or ATSTK600-RC22 equivalent, this page delivers verified hardware configuration details, supported target MCU variants (AT32UC3L016/032/064), debug interface mapping (JTAG/aWire/Nexus Class 2+), peripheral enablement status, and board-level power management architecture - all essential for firmware bring-up, low-power validation, and capacitive touch sensor integration.

Technical Context

The ATSTK600-RC22 implements a modular, socket-based architecture with dedicated voltage regulation for core (1.62–1.98 V), I/O (1.62–3.6 V), and analog (1.62–1.98 V) domains, enabling precise power domain testing aligned with AT32UC3L's picoPower® specifications. It integrates a programmable clock source supporting DFLL tuning, 32 kHz crystal oscillator, and RC oscillators - directly exposing all clock inputs (XIN0/XOUT0, XIN32/XOUT32) and outputs (RC32OUT, MCKO) to the target MCU.

Debug infrastructure includes dual-path support: standard 4-pin JTAG (TCK/TMS/TDO/TDI mapped to PA00–PA03) and single-pin aWire (using RESET_N), both compliant with Nexus Class 2+ trace requirements. The board routes all 36 GPIO pins of the 48-pin TQFP package, including five high-drive outputs (PA02/PA06/PA08/PA09/PB01), TWI-capable pins (PA05/PA07/PA17/PB04/PB05), and dedicated ADC input channels (AD[0:8]) with ADVREFP/GNDANA isolation.

Key Specifications

Availability

ATSTK600-RC22 is available at Aetrix Electronics and suitable for embedded control prototyping, low-power IoT sensor node development, industrial HMI design, and capacitive touch interface validation requiring stable component supply and long-term toolchain continuity.

Supply support for ATSTK600-RC22 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology acquired Atmel in 2016 and maintains full support for the AVR32 UC product line, including documentation, development tools, and legacy part availability.

The ATSTK600-RC22 belongs to Microchip's ATSTK600 series of modular evaluation platforms, designed specifically to accelerate development for the AT32UC3L low-power 32-bit AVR microcontroller family - emphasizing energy efficiency, secure peripheral access, and capacitive touch integration.

FAQ

What MCU variants are supported by the ATSTK600-RC22?

The ATSTK600-RC22 supports the AT32UC3L016, AT32UC3L032, and AT32UC3L064 microcontrollers in 48-pin TQFP, QFN, and TLLGA packages. All three variants share identical pinouts and peripheral sets, and the board's socket and signal routing are validated for full functional compatibility across this family - including Flash sizes (16/32/64 KB), SRAM (8/16 KB), and identical peripheral DMA, TC, PWMA, and CAT module implementations.

Does the ATSTK600-RC22 support both JTAG and aWire debugging?

Yes, the ATSTK600-RC22 fully supports both JTAG and aWire debugging interfaces for the AT32UC3L target MCUs. JTAG uses pins PA00 (TCK), PA01 (TMS), PA02 (TDO), and PA03 (TDI), while aWire operates over the RESET_N pin. Both interfaces comply with Nexus Class 2+ standards and enable non-intrusive real-time trace, memory access, and runtime control - confirmed in the AT32UC3L datasheet and ATSTK600-RC22 user guide.

How does the ATSTK600-RC22 handle power domain separation for low-power testing?

The ATSTK600-RC22 provides independent, switchable power supplies for VDDCORE (1.62–1.98 V), VDDIO (1.62–3.6 V), and VDDANA (1.62–1.98 V), each with dedicated test points and current-sense resistors. This enables accurate measurement of active/sleep-mode currents per domain - critical for validating AT32UC3L's picoPower® claims, such as 165 µA/MHz active consumption and 9 nA retention leakage - without cross-domain interference.

Can the ATSTK600-RC22 be used to evaluate capacitive touch functionality with QTouch®?

Yes, the ATSTK600-RC22 exposes all signals required for the AT32UC3L's Capacitive Touch (CAT) module: CSA[0:16], CSB[0:16], SMP, SYNC, DIS, and VDIVEN. These are routed to headers and test points, allowing direct connection to custom PCBs or evaluation sensors. The board supports autonomous wake-up from sleep modes using CAT-triggered interrupts - a key feature confirmed in the AT32UC3L datasheet and validated in Microchip's QTouch® library examples.

What clock sources and measurement capabilities does the ATSTK600-RC22 provide for timing validation?

The ATSTK600-RC22 provides physical access to all AT32UC3L clock resources: XIN0/XOUT0 (3–16 MHz), XIN32/XOUT32 (32 kHz), RC32OUT, DFLL reference inputs, and MCKO. Combined with the on-chip Frequency Meter (FREQM) and Asynchronous Timer (AST), this enables precise validation of oscillator accuracy, DFLL tuning stability, and real-time clock drift - supporting calendar-mode operation with up to 136-year timeout as specified for the AST peripheral in the AT32UC3L datasheet.