MCUs strengthen security in IoT and control systems
Standard MCUs in Toshiba’s TXZ+ Series M4V Group enhance security and data management in IoT devices and industrial control equipment, ranging from smart home appliances to factory automation systems. The devices feature a multilayered security architecture that combines access control, memory protection, and execution control functions, helping protect systems against unauthorized access and program tampering.
Based on an 80-MHz Arm Cortex-M4 core with an FPU, the M4V MCUs’ on-chip memory includes 128 KB of code flash, 64 KB of data flash, and 32 KB of RAM with parity support. Both flash memories support up to 100,000 rewrite cycles, and dual mode enables one flash area to be rewritten while instructions are executed from the other. The data flash can retain rewritable data such as configuration and log data, enabling data management tailored to the operating conditions of the equipment.
The MCUs operate with a supply voltage of 2.7 V to 5.5 V, making them suitable for consumer and industrial equipment with 5-V power supplies. An integrated 10-MHz oscillator provides ±1% frequency accuracy over the full operating temperature range of -40°C to +105°C, eliminating the need for an external oscillator.
Toshiba has started shipping engineering samples of the TXZ+ Series M4V Group MCUs. The M4V Group includes four package options to accommodate different PCB sizes and assembly requirements.
Toshiba Electronic Devices & Storage
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