Microchip Technology ATSTK600-RC91

Overview

ATSTK600-RC91 from Microchip Technology (formerly Atmel) is a development kit designed for evaluating and prototyping with the AT32UC3L064/032/016 family of 32-bit AVR UC microcontrollers. It supports full debugging, programming, and peripheral validation for devices in 48-pin TQFP/QFN/TLLGA packages, featuring on-board JTAG/aWire debug interface, configurable power rails (1.62–3.6 V), and direct access to all 36 GPIO pins, 5 high-drive I/Os, and key peripherals including USART, SPI, TWI, ADC, PWM, and capacitive touch modules.

For engineers reviewing the ATSTK600-RC91 datasheet, ATSTK600-RC91 pinout, ATSTK600-RC91 application, or ATSTK600-RC91 equivalent, this kit enables rapid validation of ultra-low-power embedded designs targeting industrial HMI, battery-powered sensor nodes, capacitive touch interfaces, and real-time control systems requiring up to 50 MHz operation, 64 KB Flash, and picoPower® energy efficiency.

Technical Context

The ATSTK600-RC91 is a hardware evaluation platform-not an IC-built around the AT32UC3L series MCU. It provides physical breakout, voltage regulation, clock source selection (DFLL, 32 kHz crystal, RC oscillators), and debug connectivity via JTAG or single-pin aWire, enabling non-intrusive trace and runtime control per Nexus Class 2+ specification.

It supports all package variants (TQFP48/QFN48/TLLGA48) and exposes full peripheral signal routing-including 36 PWM outputs, 4 USARTs, dual TWI, 8-channel 12-bit ADC, and CAT module pins-allowing direct verification of capacitive touch acquisition, SleepWalking power management, and Peripheral Event System behavior without custom PCB design.

Key Specifications

Availability

ATSTK600-RC91 is available at Aetrix Electronics and suitable for industrial HMI development, battery-powered sensor node prototyping, capacitive touch interface validation, and real-time embedded control applications requiring stable component supply and long-term toolchain continuity.

Supply support for ATSTK600-RC91 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, tools, and firmware libraries. The company specializes in microcontrollers, analog, and Flash-IP solutions for embedded markets.

ATSTK600-RC91 belongs to Microchip's ATSTK600 modular evaluation platform family, engineered to accelerate development of ultra-low-power 32-bit AVR-based systems with emphasis on capacitive touch, real-time control, and energy-efficient peripheral subsystems.

FAQ

What is the primary function of the ATSTK600-RC91?

The ATSTK600-RC91 is a dedicated evaluation and development kit for the AT32UC3L064/032/016 microcontroller family. It is not a standalone IC but a hardware platform providing debug infrastructure, power management, clock sources, and full pin access to validate firmware, peripheral integration, and low-power operation of target AVRs-enabling rapid prototyping without custom board design.

Which microcontroller variants does the ATSTK600-RC91 support?

The ATSTK600-RC91 supports all members of the AT32UC3L016/032/064 family in 48-pin TQFP, QFN, and TLLGA packages. It accommodates differences in Flash (16 KB to 64 KB), SRAM (8 KB to 16 KB), and peripheral enablement across variants while maintaining identical pinout and debug interface compatibility.

Does the ATSTK600-RC91 support both JTAG and aWire debugging?

Yes, the ATSTK600-RC91 supports both JTAG and single-pin aWire debugging protocols for the AT32UC3L series. The aWire interface shares the RESET_N pin and enables full Nexus Class 2+ capabilities-including non-intrusive trace and runtime control-while freeing all standard JTAG pins (TCK, TMS, TDI, TDO) for use as GPIO or peripherals during application execution.

Can the ATSTK600-RC91 be used to evaluate capacitive touch functionality?

Yes, the ATSTK600-RC91 provides direct access to all CAT module signals (CSA[16:0], CSB[16:0], SMP, SYNC, DIS, VDIVEN) required for Atmel QTouch® and QMatrix® capacitive sensing. It supports up to 17 self-capacitive or 16×8 mutual-capacitive sensors and enables autonomous wake-up from sleep modes-fully validating touch firmware and hardware layout before final design.

Is external power required, or does the ATSTK600-RC91 generate its own supply voltages?

The ATSTK600-RC91 accepts a single 5 V input and internally generates regulated 1.62–3.6 V VDDIO, 1.62–1.98 V VDDCORE, and 1.62–1.98 V VDDANA rails. These are fully configurable and monitored, allowing precise validation of picoPower® operation, brown-out detection, and mixed-signal performance under real-world supply conditions for the AT32UC3L device.