STMicroelectronics DK3400

Overview

DK3400 from STMicroelectronics is a demonstration kit for the uPSD3400 family of 8051-class microcontrollers, integrating a Turbo Plus 8032 core, full-speed USB 2.0 interface, dual-bank Flash (128 Mbit NAND + 8 Mbit SPI), 16 Kbit I²C EEPROM, RTC, IrDA transceiver, and 122×32 Chinese-font LCD. It enables rapid evaluation of embedded control, USB device firmware, and flash-based bootloaders.

For engineers reviewing the DK3400 datasheet, DK3400 pinout, DK3400 application, or DK3400 equivalent, this kit supports hands-on validation of uPSD3400 MCU features including JTAG debug, dual power sourcing (USB/9 V), RS232 and PS/2 peripheral interfacing, and real-time clock integration in resource-constrained embedded systems.

Technical Context

The DK3400 combines the ED3K4 evaluation module and DK3400 motherboard to provide complete hardware access to the uPSD3400 MCU's peripherals: JTAG debug port, dual USB ports (E-RLINK and uPSD), 100-pin expansion header, and mixed-voltage I/O (5 V on ED3K4, 9 V on motherboard). It implements a full development environment with RLINK debug tools and preloaded demo applications.

Hardware resources include dedicated 5 V and 9 V power jacks, 128 Mbit NAND Flash for firmware storage, 8 Mbit SPI Flash for code execution, and 16 Kbit I²C EEPROM for configuration data retention - all directly mapped to the uPSD3400's internal memory controller and peripheral bus architecture.

Key Specifications

Availability

DK3400 is available at Aetrix Electronics and suitable for embedded MCU evaluation, USB device prototyping, and industrial HMI development requiring stable component supply and legacy toolchain support.

Supply support for DK3400 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 uPSD3400 product line targets cost-sensitive, USB-enabled embedded control applications where integrated Flash, SRAM, programmable logic, and debug infrastructure reduce BOM count and accelerate time-to-demo.

FAQ

Is DK3400 still in production?

No - DK3400 is an obsolete demonstration kit per STMicroelectronics' official documentation (Doc ID 18106 Rev 1, November 2010). It is no longer manufactured or supported with new silicon, but remains available through authorized legacy distributors and Aetrix Electronics' extended-life inventory program for design continuity.

What software tools are required to use DK3400?

The DK3400 shipped with an evaluation copy of ST's uPSD Development Studio, including assembler, C compiler, linker, and RLINK debugger. No third-party IDE is required; all tools target the Turbo Plus 8032 core and integrate with the onboard JTAG and USB debug interfaces.

Can DK3400 be used with modern Windows OS versions?

Yes - driver compatibility has been verified on Windows 10 and 11 using ST's legacy RLINK USB drivers (v2.4.x). The JTAG and USB communication layers operate in compatibility mode; no virtual machine or legacy OS is required for basic programming and debugging.

Does DK3400 support external memory expansion beyond onboard Flash?

Yes - the 100-pin expansion connector provides full access to the uPSD3400's external memory bus (EMB), including address/data lines, chip select, and wait-state control signals, enabling connection of additional SRAM, NOR Flash, or FPGA co-processors as documented in the uPSD3400 datasheet.