STMicroelectronics AC7MDT10-D20/S20

Overview

AC7MDT10-D20/S20 from STMicroelectronics is a DIP20/SO20 connection kit designed to interface the ST7MDT10-EMU3 in-circuit emulator with target application boards hosting ST7 microcontrollers in either 20-pin DIP or SOIC-20 packages. It includes three physical adapters-DB482A (DIP20 main adapter), DB535 (DIP20-to-DIP20), and DB093 (DIP20-to-SO20)-enabling socket-based emulation without soldering the MCU directly. Used during firmware debug and validation of ST7-based industrial control and appliance designs.

For engineers reviewing the AC7MDT10-D20/S20 datasheet, AC7MDT10-D20/S20 pinout, AC7MDT10-D20/S20 application, or AC7MDT10-D20/S20 equivalent, this kit supports rapid transition between DIP20 and SO20 target footprints, maintains pin-1 alignment integrity across adapters, and enables non-invasive MCU replacement during ST7 development cycles.

Technical Context

The kit implements a modular, stackable mechanical interface: the DB482A DIP20 adapter plugs into the W1 connector of the ST7MDT10-EMU3 probe, then mates via precise pin-1-aligned stacking with either DB535 (for DIP20 target sockets) or DB093 (for SO20 target pads). All adapters preserve ST7 signal routing and power delivery paths without buffering or level translation.

Each adapter features keyed pin-1 indicators and rigid PCB construction to prevent misalignment; the DB093 variant includes solder pins for direct mounting onto SO20 footprint pads, while DB535 provides through-hole DIP20 socket compatibility. No active components or configuration are involved-pure passive interconnect.

Key Specifications

Availability

AC7MDT10-D20/S20 is available at Aetrix Electronics and suitable for ST7 microcontroller development, embedded firmware debugging, and industrial control board validation requiring stable component supply and legacy toolchain continuity.

Supply support for AC7MDT10-D20/S20 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, specializing in microcontrollers, power management, sensors, and automotive ICs.

This kit belongs to ST's EMU3 family of in-circuit emulation hardware, engineered specifically to accelerate development and debug of ST7 8-bit microcontroller applications using physical target board integration.

FAQ

Is AC7MDT10-D20/S20 compatible with ST7MC or ST7L microcontrollers?

Yes-AC7MDT10-D20/S20 supports all ST7-series MCUs in DIP20 or SO20 packages, including ST7MC and ST7L variants, provided they use the same pinout and electrical interface as the ST7MDT10. Compatibility is verified by ST for the full ST7 family under the EMU3 platform.

Does this kit require firmware or driver installation?

No-AC7MDT10-D20/S20 is a fully passive hardware interconnect. It introduces no logic, timing delay, or signal conditioning. Operation depends solely on the ST7MDT10-EMU3 probe and associated STVD or STVP software tools already installed on the host PC.

Can I use AC7MDT10-D20/S20 with ST7Lite or ST7FLITE devices?

Only if those devices are packaged in DIP20 or SO20 and share identical pin mapping and voltage levels with the ST7MDT10. ST documentation confirms compatibility for ST7FLITE2x/3x in SO20, but not for ST7Lite variants in smaller packages like SO14 or TSSOP20.

What is the purpose of the 90° pinout skew mentioned in the data brief?

The DB482A DIP20 adapter has its pins rotated 90° relative to a standard DIP20 IC to match the W1 connector geometry on the ST7MDT10-EMU3 probe. This skew is mechanically compensated by DB535 and DB093, which realign signals to standard DIP20/SO20 orientations before reaching the target board.