STMicroelectronics STM32-JAVA
- Part No.:
- STM32-JAVA
- Manufacturer:
- STMicroelectronics
- Category:
- Software, Services
- Package:
- Datasheet:
-
STM32-JAVA.pdf
- Description:
- KIT EVAL FOR STM32 JAVA
- Quantity:
- Payment:

- Shipping:

Inventory:3,744
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
STM32-JAVA from STMicroelectronics is a fully integrated Java development environment for STM32 microcontrollers, enabling GUI-rich embedded applications with MicroEJ®-based SDK, Eclipse™ IDE extension, Quick Start and Production Java Platforms (JPFs), MicroUI™ and MWT graphical libraries, and a sub-30 KB Flash / sub-1.5 KB RAM JVM. It targets smartphone-like HMI on STM32 'J' and 'U' series MCUs.
For engineers reviewing the STM32-JAVA datasheet, STM32-JAVA application, STM32-JAVA equivalent, or STM32-JAVA licensing model, this solution delivers validated Java binary portability between SimJPF simulation and EmbJPF target execution, native C/Java interoperability via SNI and Shielded Plug, and MVC-based GUI development with haptic sensor support for touch panels, joysticks, and rotary switches.
Technical Context
STM32-JAVA is not a semiconductor component but a software development suite requiring compatible STM32 MCUs (part numbers ending in 'J' for production or 'U' for samples). It embeds a proprietary JVM optimized for Cortex-M cores, with deterministic startup under 2 ms at 120 MHz and memory footprint constraints enforced by MicroEJ's runtime architecture.
The environment supports dual execution modes: Simulation JPF (SimJPF) for functional validation and Embedded JPF (EmbJPF) for deployment, sharing identical Java bytecode. GUI development leverages MicroUI for display buffer abstraction across monochrome and color displays, and MWT for widget composition with event-driven haptic input handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| JVM Flash Size | <30 KB - enables Java execution on resource-constrained STM32 MCUs without compromising application code space. |
| JVM RAM Usage | <1.5 KB - allows coexistence with real-time C firmware and peripheral drivers in tight memory systems. |
| Startup Time | <2 ms at 120 MHz - ensures rapid GUI initialization critical for responsive human-machine interfaces. |
| Execution Model | Identical bytecode runs on SimJPF (host simulation) and EmbJPF (target MCU) - eliminates porting effort and validates logic before hardware deployment. |
| GUI Framework | MicroUI + MWT - abstracts display hardware, supports monochrome/color buffers, and enables event-driven haptic input (touch, joystick, rotary switch). |
| Interoperability | Simple Native Interface (SNI) and Shielded Plug - enable safe, type-checked C function calls and data exchange between Java and legacy C modules. |
Availability
STM32-JAVA is available at Aetrix Electronics and suitable for industrial HMIs, medical device user interfaces, smart building control panels, and consumer electronics requiring stable component supply and long-term toolchain continuity.
Supply support for STM32-JAVA 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 management, sensors, and automotive semiconductors.
STM32-JAVA belongs to ST's embedded software ecosystem for the STM32 MCU family, created to accelerate GUI-centric application development using Java while preserving real-time C control capabilities.
FAQ
Is STM32-JAVA a physical component or a software license?
STM32-JAVA is a software development kit delivered on DVD-ROM with a 1-year subscription and hardware dongle. It is not a semiconductor part, PCB, or evaluation board-it is a licensed Java platform solution for STM32 MCUs.
Which STM32 MCUs support STM32-JAVA?
Only STM32 MCUs with part numbers ending in 'J' (mass production) or 'U' (sample-only) are hardware-enabled for STM32-JAVA. These variants include specific ROM-resident Java runtime extensions and are listed on stm32java.com.
Can Java and C code coexist in the same STM32 application?
Yes-STM32-JAVA provides Simple Native Interface (SNI) to call C functions from Java and Shielded Plug to safely exchange data between Java and C domains, enabling hybrid applications that combine Java GUI logic with legacy C control firmware.
Does STM32-JAVA include GUI design tools?
Yes-it includes three integrated visual designers: Font Designer for custom bitmap fonts, Story Board Designer for defining HMI interaction flows, and Front Panel Designer for extending the Java simulator with custom UI elements and hardware emulation.
STM32-JAVA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- STM32
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Integrated Development Environment (IDE)
- Applications:
- -
- Edition:
- -
- License Length:
- -
- License - User Details:
- -
- Operating System:
- -
- For Use With/Related Products:
- STM32
- Media Delivery Type:
- -
STM32-JAVA FAQ
1.How can I place an order for STM32-JAVA through Aetrix?
Please submit a Request for Quotation (RFQ) for STM32-JAVA 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 STM32-JAVA reliable?
The price and inventory of STM32-JAVA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STM32-JAVA is usually 5 days.
3.What payment methods are accepted for STM32-JAVA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STM32-JAVA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STM32-JAVA?
STM32-JAVA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STM32-JAVA 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 STM32-JAVA?
For technical support, including STM32-JAVA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STM32-JAVA requirements.
6.How does Aetrix verify that STM32-JAVA is sourced from the original manufacturer or authorized distributors?
All STM32-JAVA 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 STM32-JAVA meets industry standards.
7.What is the process for return or replacement of STM32-JAVA?
All STM32-JAVA units undergo pre-shipment inspection (PSI). If there is an issue with STM32-JAVA, 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 STM32-JAVA part is unused and in its original packaging.
Return procedure for STM32-JAVA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STM32-JAVA Tags
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…





