STMicroelectronics AC7MDT10-D32/S28

Overview

AC7MDT10-D32/S28 from STMicroelectronics is a hardware connection kit comprising two precision-machined adapters-DB510 (SDIP32 adapter) and DB359 (SDIP32-to-SO28 device adapter)-designed to interface the ST7MDT10-EMU3 in-circuit emulator with target application boards hosting ST7 microcontrollers in SDIP32 or SO28 packages. It enables physical replacement of the MCU during debug without soldering the emulator directly to the board.

For engineers reviewing the AC7MDT10-D32/S28 datasheet, AC7MDT10-D32/S28 pinout, AC7MDT10-D32/S28 application, or AC7MDT10-D32/S28 equivalent, this kit supports trace-based debugging of ST7MCUs via W2 connector alignment, pin-1–indexed mechanical insertion, and socket-based temporary MCU substitution on production-representative PCBs.

Technical Context

The kit implements a dual-stage mechanical interface: the DB510 SDIP32 adapter mates with the W2 header on the ST7MDT10-EMU3 emulation board, while the DB359 adapter bridges the SDIP32 footprint to the SO28 land pattern used by ST7 devices such as ST72F264, ST72F362, and ST72F62. Both adapters maintain 1:1 signal mapping with no logic or buffering.

Pin 1 alignment indicators are physically embossed on both adapters to ensure correct orientation during insertion. Soldering is required only for the DB359's connection pins onto the application board-acting as a permanent mounting fixture-while DB510 inserts into that fixture and the emulator's W2 connector.

Key Specifications

Availability

AC7MDT10-D32/S28 is available at Aetrix Electronics and suitable for ST7 microcontroller development, in-circuit debugging of SDIP32/SO28-based control systems, and production-line firmware validation requiring non-invasive emulator integration.

Supply support for AC7MDT10-D32/S28 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 manufacturer headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, analog ICs, and automotive-grade silicon.

This kit belongs to ST's EMU3-series emulator accessory product line, engineered specifically to extend debug accessibility for legacy ST7 8-bit MCUs across multiple package variants without modifying target PCB layout.

FAQ

Is AC7MDT10-D32/S28 compatible with ST7MCUs in TSSOP28 or PDIP28 packages?

No. The kit is mechanically designed only for SDIP32 and SO28 footprints. TSSOP28 and PDIP28 have different pin pitch, body dimensions, and pad layouts; using this kit with those packages would result in misalignment and potential damage. Separate adapters-such as AC7MDT10-D28/T28 for TSSOP28-are required.

Does AC7MDT10-D32/S28 include the ST7MDT10-EMU3 emulator?

No. AC7MDT10-D32/S28 is a connection kit only. It contains the DB510 SDIP32 adapter and DB359 SDIP32-to-SO28 device adapter. The ST7MDT10-EMU3 emulator must be purchased separately and connects to the DB510 via its W2 header.

Can the DB359 adapter be reused across multiple application boards?

Yes, but only if identical SO28 land patterns and solder mask definitions are used. DB359 is soldered permanently onto the target board as a socket replacement. Reuse requires desoldering, which risks pad damage; ST recommends dedicated DB359 per board revision unless IPC-compliant rework procedures are followed.

What is the purpose of the pin 1 indicator on both adapters?

The embossed pin 1 indicator ensures correct rotational orientation during mechanical insertion-critical for maintaining signal integrity and avoiding reversed VDD/GND connections. Misalignment can cause emulator communication failure or damage to the ST7MDT10-EMU3's W2 interface due to incorrect power routing.