STMicroelectronics ST7MDTU3-EPB/US
- Part No.:
- ST7MDTU3-EPB/US
- Manufacturer:
- STMicroelectronics
- Category:
- Programmers, Emulators, and Debuggers
- Package:
- Datasheet:
-
ST7MDTU3-EPB/US.pdf
- Description:
- BOARD PROGRAMMING ENGINEERING
- Quantity:
- Payment:

- Shipping:

Inventory:3,674
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Product details
Overview
ST7MDTU3-EPB/US from STMicroelectronics is an ST7-EPB series programming board for ST7 microcontrollers in the ST7260x and ST7263x device families. It is used to program ST7 devices with OTP, EPROM, EEPROM, or Flash memory and is intended for engineering, service, and legacy production workflows that require socket-based or in-circuit programming support for supported ST7 devices.
For engineers reviewing the ST7MDTU3-EPB/US datasheet, ST7MDTU3-EPB/US setup, ST7MDTU3-EPB/US supported devices, or ST7MDTU3-EPB/US programming workflow, this programming board is most relevant for ST7260x / ST7263x firmware loading, ST Visual Programmer operation, Motorola S19 or Intel-format executable programming, parallel-port host connection, and US-region power-supply configuration.
Technical Context
ST7MDTU3-EPB/US belongs to the ST7-EPB programming-board family, which supports programming of ST7 microcontrollers regardless of package type through programming sockets supplied for the supported ST7 sub-family. The ST7MDTU3-EPB order-code family is assigned to ST7260x and ST7263x devices, while the /US suffix identifies the regional power-supply version for US use.
The board communicates with the host PC through a parallel-port interface and is used with ST Visual Programmer software to read, write, and verify ST7 memory and option bytes. Some ST7-EPB programmers also support In-Circuit Programming or In Situ Programming through the ST7 ICC protocol, using an HE-10 10-pin ribbon-cable connection to the application board when the target device and board setup support that mode.
Key Specifications
| Parameter | Value and Use Meaning |
|---|---|
| Product Type | ST7-EPB programming board for programming supported ST7 microcontrollers. |
| Supported Device Family | ST7260x and ST7263x ST7 microcontrollers, matching the ST7MDTU3-EPB order-code family. |
| Programming Scope | Used for ST7 devices with OTP, EPROM, EEPROM, or Flash memories, depending on the supported device and programming mode. |
| Programming Formats | Supports executable files in Motorola S19 and Intel formats for firmware programming workflows. |
| Programming Software | Used with ST Visual Programmer, which provides read, write, verify, memory / option-byte programming, project storage, and programming-sequence automation functions. |
| Host Interface | Parallel-port interface to the host PC; the supplied parallel cable should be connected directly between the PC and the programming board. |
| Board Supply | ST7-EPB boards use a 5 V board voltage and are supplied with a power supply; the programming board can also be powered from an external +15 VDC / 0.5 A supply when applicable. |
| Regional Suffix | /US indicates the power-supply version intended for the US region. |
| Included Kit Items | Programming board, power supply, parallel cable, and an optional 10-pin HE-10 ribbon cable for boards and target devices that support ICP or ISP. |
| Socket Programming | Programming sockets are provided for the supported ST7 sub-family and package types; the target MCU must be installed with pin 1 aligned to the socket pin-1 indicator. |
| ICP / ISP Support | Some ST7-EPB programmers support in-circuit or in-situ programming through the ST7 ICC protocol, depending on the EPB version and target ST7 device. |
| ICC Connection Signals | Typical ICP connection uses ICCDATA, ICCCLK, RESET, ICCSEL / VPP, optional OSC1 / OSCIN clock input, VDD_APPLI, and GND. |
| Design Status Context | ST7-EPB programming boards are legacy ST7 development tools and are not recommended for new design programs. |
Availability
ST7MDTU3-EPB/US is available at Aetrix Electronics and suitable for legacy ST7 programming support, ST7260x / ST7263x firmware loading, replacement tool sourcing, service programming, and maintenance of existing ST7-based hardware programs requiring stable component supply and repeatable production support.
Supply support may include scheduled delivery planning, replacement sourcing support, BOM continuity assistance, traceable sourcing management, and long-term availability support for maintenance engineers, contract manufacturers, repair teams, legacy product owners, and production groups still supporting ST7 microcontroller platforms.
For production or service deployment, confirming the ST7260x / ST7263x target-device match, US-region power-supply requirement, programming socket support, parallel-port host availability, ST Visual Programmer software environment, ICC / ICP wiring requirements, and tool-condition requirements helps reduce procurement risk and improve programming workflow stability.
Manufacturer
STMicroelectronics supplies microcontrollers, development tools, programming boards, emulators, power-management ICs, sensors, RF devices, and discrete semiconductor products for embedded, industrial, automotive, communication, and consumer applications. ST7MDTU3-EPB/US belongs to ST's legacy ST7 programming-tool portfolio for 8-bit ST7 microcontroller programming and support workflows.
FAQ
What is ST7MDTU3-EPB/US used for?
ST7MDTU3-EPB/US is used to program supported ST7 microcontrollers in the ST7260x and ST7263x families. It is a programming board rather than a semiconductor device, and it is mainly used for firmware loading, memory verification, option-byte programming, engineering support, repair, and legacy production workflows involving ST7 devices.
Which ST7 devices does ST7MDTU3-EPB/US support?
ST7MDTU3-EPB/US is associated with the ST7MDTU3-EPB programming-board family for ST7260x and ST7263x devices. Engineers should match the exact ST7 device number, package type, memory type, and supported programming mode before using the board, because ST7-EPB sockets and in-circuit programming behavior depend on the supported ST7 sub-family.
What software is used with ST7MDTU3-EPB/US?
ST7MDTU3-EPB/US is used with ST Visual Programmer. The software interface supports reading, writing, and verifying ST7 memory and option bytes, and it also provides project mode for storing programming configurations and automating programming sequences. This is useful when multiple ST7 devices must be programmed with the same image and option-byte settings.
Does ST7MDTU3-EPB/US support in-circuit programming?
ST7MDTU3-EPB/US belongs to the ST7-EPB family, where some programming boards support In-Circuit Programming or In Situ Programming through the ST7 ICC protocol. When ICP is used, the application board needs a suitable 10-pin HE-10 ICC connector and correct routing for ICCDATA, ICCCLK, RESET, ICCSEL / VPP, VDD_APPLI, GND, and sometimes the oscillator input.
What host connection does ST7MDTU3-EPB/US require?
ST7MDTU3-EPB/US uses a parallel-port connection between the programming board and the host PC. For reliable operation, the supplied parallel cable should be connected directly to the host PC parallel port rather than through extra extension cables or switch boxes. This requirement matters when using the board with modern service setups that may no longer include native parallel ports.
What does the /US suffix mean on ST7MDTU3-EPB/US?
The /US suffix on ST7MDTU3-EPB/US identifies the regional power-supply version for US use. This is important because ST7-EPB kits include a power supply, and the supply must match the mains voltage and outlet type used in the operating region. For replacement sourcing, the suffix should be checked along with the target ST7 device family.
Is ST7MDTU3-EPB/US suitable for new designs?
ST7MDTU3-EPB/US is best treated as a legacy programming tool for existing ST7-based products. The ST7-EPB family is not recommended for new design programs, so new embedded projects should normally use current STMicroelectronics MCU platforms and current programming/debugging tools. ST7MDTU3-EPB/US remains relevant when an existing ST7260x or ST7263x product must be programmed, serviced, or maintained.
ST7MDTU3-EPB/US Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ST7
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Programmer
- For Use With/Related Products:
- ST7263BKxx
- Contents:
- Board(s)
ST7MDTU3-EPB/US FAQ
1.How can I place an order for ST7MDTU3-EPB/US through Aetrix?
Please submit a Request for Quotation (RFQ) for ST7MDTU3-EPB/US 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 ST7MDTU3-EPB/US reliable?
The price and inventory of ST7MDTU3-EPB/US are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ST7MDTU3-EPB/US is usually 5 days.
3.What payment methods are accepted for ST7MDTU3-EPB/US?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ST7MDTU3-EPB/US transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ST7MDTU3-EPB/US?
ST7MDTU3-EPB/US orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ST7MDTU3-EPB/US 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 ST7MDTU3-EPB/US?
For technical support, including ST7MDTU3-EPB/US datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ST7MDTU3-EPB/US requirements.
6.How does Aetrix verify that ST7MDTU3-EPB/US is sourced from the original manufacturer or authorized distributors?
All ST7MDTU3-EPB/US 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 ST7MDTU3-EPB/US meets industry standards.
7.What is the process for return or replacement of ST7MDTU3-EPB/US?
All ST7MDTU3-EPB/US units undergo pre-shipment inspection (PSI). If there is an issue with ST7MDTU3-EPB/US, 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 ST7MDTU3-EPB/US part is unused and in its original packaging.
Return procedure for ST7MDTU3-EPB/US:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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