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STMicroelectronics EVALCOMMBOARD

Name: EVALCOMMBOARD
Brand: STMicroelectronics
SKU: EVALCOMMBOARD
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: EVALCOMMBOARD

Manufacturer:: STMicroelectronics

Category:: Accessories

Package:

Datasheet:: EVALCOMMBOARD.pdf

Description:: BOARD EVAL GP FOR 12MBPS PC

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,116

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Product details

Overview

EVALCOMMBOARD from STMicroelectronics is an industrial evaluation platform designed to establish a standardized, firmware-driven communication bridge between a host PC and ST's family of industrial reference design boards-including PLC (ST7538/ST7540), motor control (EVAL6207N), and intelligent power switch evaluation systems. It integrates a ST72F651AR6 USB microcontroller, 10-bit DAC (AD5317), dual LM358 op-amps with ±5V supply, RS-232 emulation, and configurable jumpers/switches for hardware adaptation.

For engineers reviewing the EVALCOMMBOARD datasheet, EVALCOMMBOARD pinout, EVALCOMMBOARD application, or EVALCOMMBOARD equivalent, this board serves as a unified firmware- and GUI-enabled interface for evaluating ST's industrial analog/mixed-signal ICs in real-world power line communication, stepper/DC motor control, and in-circuit programming environments-without requiring custom host software or hardware rework.

Technical Context

The board implements a dual-role communication architecture: full-speed USB (12 Mbps) serves as the primary host interface with integrated DFU capability, while software-emulated half-duplex RS-232 provides a fallback channel using GPIO timing. Its ST72F651AR6 MCU runs dedicated firmware that maps PC commands to target board signals via SPI-controlled AD5317 DAC outputs and op-amp–conditioned differential references (VREF_A/VREF_B).

Power architecture supports four independent input sources (PLM 10V, Motor 5V, Phone Jack 5–35V, USB 5V), with diode-OR selection and L5973D buck converter delivering stable 5V VDD. Dedicated charge-pump circuits generate 12V VPP for MCU flash programming and –5V for LM358 rail-to-rail operation-enabling true bipolar analog signal synthesis critical for microstepping waveform generation.

Key Specifications

Parameter	Value and Actual Design Meaning
Core MCU	ST72F651AR6: 8 MHz ST7 core, 32 KB Flash, 5 KB RAM, integrated USB controller and 8-channel 8-bit ADC
DAC	AD5317: 10-bit buffered voltage-output DAC with 4 rail-to-rail outputs (0–VCC), 0.7 V/µs slew rate, SPI interface
Op-Amps	LM358 ×2: High-gain (100 dB), wide-bandwidth (1.1 MHz), configured as differential amplifiers for VREF_A = VOUTC − VOUTA and VREF_B = VOUTD − VOUTA
Power Inputs	Four selectable sources: PLM 10V, Motor 5V, Phone Jack (5–35V), USB 5V - auto-selected via diode-OR with priority to highest voltage
USB Interface	Full-speed (12 Mbps) vendor-class USB with embedded DFU support; powers board directly from PC when connected
RS-232 Emulation	Software-based half-duplex UART using GPIO timing (PD7/Tx, PF0/Rx); ST232 transceiver optional via jumper J11

Availability

EVALCOMMBOARD is available at Aetrix Electronics and suitable for industrial PLC system validation, stepper motor microstepping evaluation, and intelligent power switch characterization requiring stable component supply and long-term firmware/software compatibility.

Supply support for EVALCOMMBOARD 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 specializing in automotive, industrial, and power management solutions, with deep expertise in mixed-signal and embedded control technologies.

EVALCOMMBOARD belongs to ST's Industrial Reference Design Ecosystem product line, engineered to accelerate evaluation and integration of ST's PLC transceivers, motor gate drivers, and intelligent power switches through standardized, GUI-driven host communication.

FAQ

What firmware versions are supported on EVALCOMMBOARD?

EVALCOMMBOARD ships with factory-programmed firmware supporting ST7538/ST7540 PLC kits and EVAL6207N motor control boards. Firmware updates are performed via USB DFU mode using ST's dedicated GUI tools; version history and release notes are documented in UM0240 Rev 1 (June 2006) and later application notes.

Can EVALCOMMBOARD interface with non-ST evaluation boards?

EVALCOMMBOARD is specifically designed for ST's industrial reference designs and relies on firmware-mapped signal definitions (e.g., VREF_A/VREF_B for microstepping, PLC digital/analog I/O per Tables 3–5). Interfacing with third-party boards requires custom firmware modification and hardware signal alignment-no out-of-box compatibility is provided.

Does EVALCOMMBOARD provide isolated communication interfaces?

No. EVALCOMMBOARD does not include galvanic isolation on USB, RS-232, PLC, or motor control interfaces. All signal lines share a common ground plane; external isolation must be added at the target evaluation board or system level for high-noise industrial environments.

What software tools are required to operate EVALCOMMBOARD?

Operation requires ST's proprietary GUI applications: PLC ST7538/40 DEMOKIT software for power line communication evaluation and dedicated motor control GUIs (stepper/DC) distributed with EVAL6207N documentation. No generic USB CDC or VCP drivers are used-the board operates exclusively with ST's vendor-class driver and firmware-defined command protocol.

EVALCOMMBOARD Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Obsolete

Accessory Type:: Power Management

For Use With/Related Products:: ST72F651AR6

EVALCOMMBOARD FAQ

1.How can I place an order for EVALCOMMBOARD through Aetrix?

Please submit a Request for Quotation (RFQ) for EVALCOMMBOARD 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 EVALCOMMBOARD reliable?

The price and inventory of EVALCOMMBOARD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EVALCOMMBOARD is usually 5 days.

3.What payment methods are accepted for EVALCOMMBOARD?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EVALCOMMBOARD transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for EVALCOMMBOARD?

EVALCOMMBOARD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your EVALCOMMBOARD 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 EVALCOMMBOARD?

For technical support, including EVALCOMMBOARD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EVALCOMMBOARD requirements.

6.How does Aetrix verify that EVALCOMMBOARD is sourced from the original manufacturer or authorized distributors?

All EVALCOMMBOARD 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 EVALCOMMBOARD meets industry standards.

7.What is the process for return or replacement of EVALCOMMBOARD?

All EVALCOMMBOARD units undergo pre-shipment inspection (PSI). If there is an issue with EVALCOMMBOARD, 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 EVALCOMMBOARD part is unused and in its original packaging.

Return procedure for EVALCOMMBOARD:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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