STMicroelectronics ST7MDT20J-EMU3
- Part No.:
- ST7MDT20J-EMU3
- Manufacturer:
- STMicroelectronics
- Category:
- Programmers, Emulators, and Debuggers
- Package:
- Datasheet:
-
ST7MDT20J-EMU3.pdf
- Description:
- KIT EMULATOR FOR ST72321/24/44
- Quantity:
- Payment:

- Shipping:

Inventory:2,483
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Product details
Overview
ST7MDT20J-EMU3 from STMicroelectronics is a third-generation real-time emulator for ST7 microcontrollers, supporting both emulation and In-Circuit Communication (ICC) configurations. It enables full-featured debugging-including 256K real-time trace with timestamp, unlimited conditional breakpoints, programmable clock (32 kHz–16 MHz), and low-voltage emulation (1.8–5.5 V)-for development of Flash-based ST7 applications on target hardware.
For engineers reviewing the ST7MDT20J-EMU3 datasheet, ST7MDT20J-EMU3 pinout, ST7MDT20J-EMU3 application, or ST7MDT20J-EMU3 equivalent, this tool delivers integrated emulation, in-circuit debugging (ICD), and in-circuit programming (ICP) across ST7 Flash MCUs-requiring only a 10-pin ICC connector on the target board and compatibility with STVD7/STVP7 software.
Technical Context
The ST7MDT20J-EMU3 implements dual-mode operation: Emulation mode replaces the target ST7 with a probe-based Target Emulation Board (TEB), enabling full register/memory access, real-time trace, and performance analysis; ICC mode communicates directly with the installed ST7 via a 10-pin interface for non-intrusive ICD/ICP. Both modes use ST Micro Connect for host PC connectivity via parallel, USB, or Ethernet.
Its architecture supports advanced breakpoint logic-including data-value-triggered, address-range, opcode-fetch, and stack-operation conditions-and a four-level logic sequencer to coordinate actions (e.g., trace start/stop, snapshot capture, output trigger assertion) with complex event combinations like masked data reads/writes at specified addresses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Emulation Mode | Replaces target ST7 with TEB; enables full memory/register read/write, real-time trace, and hardware-assisted breakpoints. |
| ICC Mode | Connects to installed ST7 Flash MCU via 10-pin ICC header; supports non-intrusive debug and Flash programming without removing chip. |
| Trace Buffer | 256K entries with timestamp; captures instruction/data flow for timing analysis and anomaly root-cause diagnosis. |
| Breakpoint Logic | Unlimited software breakpoints in RAM/XFlash; hardware breakpoints with condition counters, address ranges, data masks, and stack-event triggers. |
| Clock Range | Programmable from 32 kHz to 16 MHz; allows accurate timing simulation across ST7 operating conditions including low-power modes. |
| Voltage Support | 1.8 V to 5.5 V emulation supply; ensures compatibility with all ST7 Flash variants, including ultra-low-voltage derivatives. |
Availability
ST7MDT20J-EMU3 is available at Aetrix Electronics and suitable for ST7-based embedded firmware development, Flash programming validation, and real-time performance analysis requiring stable component supply and long-term toolchain continuity.
Supply support for ST7MDT20J-EMU3 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, analog ICs, power devices, and sensors for industrial, automotive, and consumer applications.
The ST7-EMU3 series belongs to ST's legacy embedded development tools product line, engineered specifically to accelerate firmware development for the ST7 8-bit Flash microcontroller family through hardware-assisted real-time debug and programming.
FAQ
What interfaces does the ST7MDT20J-EMU3 support for host PC connection?
The ST7MDT20J-EMU3 supports parallel port, USB, and Ethernet interfaces via the ST Micro Connect module-enabling flexible integration into diverse development environments regardless of host PC legacy or modern connectivity constraints. All three interfaces deliver identical functionality for emulation, ICD, and ICP operations under STVD7/STVP7 control.
Does the ST7MDT20J-EMU3 require soldering to the target board?
No-emulation mode uses package-specific adapters and sockets to physically replace the target ST7; ICC mode requires only a 10-pin header soldered to the application board per ST's ICC Add-on specification. No permanent modification to the ST7 device itself is needed in either configuration.
Can the ST7MDT20J-EMU3 program and debug all ST7 Flash microcontrollers?
Yes-when paired with the correct Target Emulation Board (TEB) and ICC Add-on, it supports all ST7 Flash MCUs covered by the ST7MDT20 sub-family. Compatibility depends on matching the TEB order code (e.g., ST7MDT20-TEB) and verifying the target device's Flash architecture aligns with STVD7/STVP7 firmware version requirements.
Is ST7 Visual Develop (STVD7) included with the ST7MDT20J-EMU3?
No-STVD7 and STVP7 are separate free-download software tools from STMicroelectronics' website. The ST7MDT20J-EMU3 requires STVD7 for emulation/ICD and STVP7 for standalone Flash programming; both are mandatory and must be installed separately before use.
ST7MDT20J-EMU3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ST7-EMU3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Programmer
- For Use With/Related Products:
- ST72321, ST72324, ST72344
- Contents:
- Board(s)
ST7MDT20J-EMU3 FAQ
1.How can I place an order for ST7MDT20J-EMU3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ST7MDT20J-EMU3 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 ST7MDT20J-EMU3 reliable?
The price and inventory of ST7MDT20J-EMU3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST7MDT20J-EMU3 is usually 5 days.
3.What payment methods are accepted for ST7MDT20J-EMU3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST7MDT20J-EMU3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST7MDT20J-EMU3?
ST7MDT20J-EMU3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST7MDT20J-EMU3 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 ST7MDT20J-EMU3?
For technical support, including ST7MDT20J-EMU3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST7MDT20J-EMU3 requirements.
6.How does Aetrix verify that ST7MDT20J-EMU3 is sourced from the original manufacturer or authorized distributors?
All ST7MDT20J-EMU3 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 ST7MDT20J-EMU3 meets industry standards.
7.What is the process for return or replacement of ST7MDT20J-EMU3?
All ST7MDT20J-EMU3 units undergo pre-shipment inspection (PSI). If there is an issue with ST7MDT20J-EMU3, 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 ST7MDT20J-EMU3 part is unused and in its original packaging.
Return procedure for ST7MDT20J-EMU3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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