WriteNow! in-circuit multiple programmer delivers a revolutionary solution in the programming industry by combining ultra-fast, universal in-system programming with industrial-grade reliability. Designed for seamless integration in automated test equipment (ATE) and fixtures, it supports a broad range of devices including microcontrollers, memories, and programmable components. This compact programmer operates standalone or connected via USB, LAN, or RS-232 interfaces, featuring true parallel programming of up to 8 devices simultaneously. Its flexible hardware and intuitive software utilities enhance production efficiency, security, and scalability, perfectly complementing STMicroelectronics’ portfolio of STM32, SPC5, and STM8 devices.
Features and benefits
- True parallel programming: Program up to 8 devices simultaneously to reduce cycle time
- Universal device support: Compatible with all major ST device families and multiple interfaces (JTAG, SWD, UART, SPI/QSPI, SWIM, I²C)
- Compact and fixture friendly: Small footprint enables easy integration into production lines and ATE fixtures
- Flexible connectivity: Supports USB, LAN, and isolated RS-232 for versatile host control
- Standalone operation: Internal memory card stores programming data for autonomous use
- Programmable power and I/O voltages: Adjustable supply from 1.5 to 12.5 V and I/O from 1.6 to 5.5 V for broad device compatibility
- Security features: Protection mode and data encryption safeguard embedded firmware intellectual property
- Advanced software tools: Project generator GUI, SDK/API support, and variable data programming for serial numbers and MAC addresses
- Compliance and reliability: Industrial-grade robustness suitable for automotive and safety-critical applications

| Supported Devices | Power line transceivers, STM32 32-bit Arm Cortex MCUs, Bluetooth LE application processors, SPC5 32-bit automotive MCUs, STM8 8-bit MCUs |
| Tool Type | Programming Tool |
| Site |