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Microchip Technology ATJTAGICE
- Part No.:
- ATJTAGICE
- Manufacturer:
- Microchip Technology
- Category:
- Programmers, Emulators, and Debuggers
- Package:
- Datasheet:
-
ATJTAGICE.pdf
- Description:
- JTAG EMULATOR FOR AVR
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
ATJTAGICE from Atmel is a JTAG in-circuit emulator and debugger for IEEE 1149.1-compliant AVR 8-bit RISC microcontrollers, supporting real-time emulation, full analog/digital resource visibility (Flash, EEPROM, SRAM, registers, fuses), and breakpoint control across program and data memory. It operates with target voltage 2.0–5.5 V and connects via RS-232 to PC running AVR Studio.
For engineers reviewing the ATJTAGICE datasheet, ATJTAGICE pinout, ATJTAGICE application, or ATJTAGICE equivalent, this tool enables on-chip debug of legacy AVR devices including ATmega32, ATmega128, ATmega169, and ATmega162 - with real-time breakpoints, JTAG scan chain support, and firmware upgradability via AVR Studio.
Technical Context
The ATJTAGICE implements IEEE 1149.1 JTAG boundary-scan architecture to perform non-intrusive real-time emulation of AVR microcontrollers during active target operation. It interfaces exclusively via RS-232 and requires no target-side firmware; all debug logic resides in the emulator hardware and is managed by AVR Studio's integrated front-end.
It supports multi-device JTAG chains and provides full access to internal resources including fuse/lock bits, I/O modules, and program counter state. Target power can be supplied either from an external 9–12 V source or derived directly from the target system, enabling flexible lab and embedded prototyping use cases.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| JTAG Standard | IEEE 1149.1 compliant - ensures interoperability with all AVR parts featuring JTAG TAP controller |
| Target Voltage Range | 2.0–5.5 V - supports both standard and low-voltage AVR variants without level-shifting hardware |
| Host Interface | RS-232 - uses standard serial port; no USB driver or adapter required for legacy PC compatibility |
| Supported Devices | ATmega32, ATmega128, ATmega169, ATmega162, ATmega323, ATmega16, ATmega162 - verified device list per official Atmel documentation |
| Breakpoint Capability | Program memory (single address or range) and data memory (single address or range) - enables precise flow and state inspection during runtime |
| Power Supply Options | 9–12 V external DC or target-derived - eliminates need for separate bench supply in most development setups |
Availability
ATJTAGICE is available at Aetrix Electronics and suitable for AVR-based embedded prototyping, industrial controller validation, and educational microcontroller labs requiring stable component supply and long-term toolchain continuity.
Supply support for ATJTAGICE 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
Atmel Corporation was a U.S.-based semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and programmable logic, acquired by Microchip Technology in 2016.
The ATJTAGICE belongs to Atmel's AVR On-Chip Debug System product line, designed specifically to accelerate firmware development and hardware-software co-validation for 8-bit AVR microcontrollers using standardized JTAG infrastructure.
FAQ
What is the primary function of the ATJTAGICE?
The ATJTAGICE is a dedicated JTAG in-circuit emulator for debugging AVR 8-bit microcontrollers. It enables real-time monitoring and control of internal resources - including Flash, EEPROM, SRAM, registers, and fuse bits - directly through the IEEE 1149.1 JTAG interface. Unlike software-only debuggers, the ATJTAGICE performs hardware-assisted emulation without requiring target firmware modifications, making it essential for low-level validation of the ATJTAGICE-supported AVR family.
Which AVR microcontrollers are officially supported by the ATJTAGICE?
The ATJTAGICE officially supports ATmega323, ATmega16, ATmega128, ATmega32, ATmega162, and ATmega169 - as confirmed in Atmel's ordering documentation and device compatibility tables. Support is limited to AVR devices with native IEEE 1149.1 JTAG TAP controllers; newer XMEGA or megaAVR 0-series parts are not compatible. The ATJTAGICE does not support ISP-only or debugWIRE-only AVRs.
Does the ATJTAGICE require external power or draw power from the target?
The ATJTAGICE accepts dual power sources: a 9–12 V DC input or power derived directly from the target board's VCC rail. This design allows operation in both standalone lab environments and target-integrated debug scenarios. When powered from the target, the ATJTAGICE automatically adapts to the target's voltage within the 2.0–5.5 V range - a key requirement for reliable signal integrity and JTAG TCK/TMS timing in the ATJTAGICE system.
How is firmware updated on the ATJTAGICE?
Firmware updates for the ATJTAGICE are performed automatically through AVR Studio - Atmel's official IDE - during connection or when new device support is added. No manual hex file flashing or bootloader mode entry is required. Each AVR Studio release includes updated ATJTAGICE firmware binaries that extend compatibility to newly released JTAG-capable AVRs, ensuring long-term usability without hardware replacement.
Can the ATJTAGICE be used with modern Windows operating systems?
The ATJTAGICE was validated for Windows 98/2000/XP and relies on legacy RS-232 drivers and AVR Studio 4.x. While basic functionality may persist on Windows 10/11 via compatibility mode and signed serial drivers, official support ended with AVR Studio's discontinuation. For current development, Microchip recommends migrating to the Atmel-ICE debugger, which maintains backward compatibility with ATJTAGICE-targeted AVRs while supporting modern OS and IDE versions.
ATJTAGICE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- -
- Product Status:
- Obsolete
- Type:
- Emulator (In-Circuit/In-System)
- For Use With/Related Products:
- AVR®
- Contents:
- Board(s)
ATJTAGICE FAQ
1.How can I place an order for ATJTAGICE through Aetrix?
Please submit a Request for Quotation (RFQ) for ATJTAGICE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ATJTAGICE reliable?
The price and inventory of ATJTAGICE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATJTAGICE is usually 5 days.
3.What payment methods are accepted for ATJTAGICE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATJTAGICE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATJTAGICE?
ATJTAGICE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATJTAGICE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ATJTAGICE?
For technical support, including ATJTAGICE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATJTAGICE requirements.
6.How does Aetrix verify that ATJTAGICE is sourced from the original manufacturer or authorized distributors?
All ATJTAGICE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ATJTAGICE meets industry standards.
7.What is the process for return or replacement of ATJTAGICE?
All ATJTAGICE units undergo pre-shipment inspection (PSI). If there is an issue with ATJTAGICE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ATJTAGICE part is unused and in its original packaging.
Return procedure for ATJTAGICE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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