Key facts
- Brand
- STMicroelectronics
- Model
- ST32F256
- Category
- microcontrollers
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-07
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ST32F256 Smartcard MCU Data Sheet
The ST32F256 is a serial access microcontroller designed for secure mobile applications. It incorporates an ARM Cortex-M3 32-bit RISC core operating at up to 20 MHz, providing high performance with excellent code compactness via the Thumb-2 instruction set.
Key hardware features include 8 Kbytes of user RAM and 256 Kbytes of user Flash memory with OTP (One-Time Programmable) area. The device supports supply voltage ranges of 1.8V, 3V, and 5V and includes security features such as a True random number generator, unique serial numbers on each die, and a hardware DES accelerator.
STMicroelectronics ST32F256 specifications
| CPU Core | ARM Cortex-M3 32-bit RISC core |
|---|---|
| User RAM Size | 8 Kbytes |
| User Flash Memory | 256 Kbytes |
| Max CPU Clock Frequency | 20 MHz |
| Supply Voltage Ranges | 1.8V, 3V and 5V |
| External Clock Frequency Range | 1 up to 7.5 MHz |
| Temperature Range | -25 to +85°C |
All STMicroelectronics ST32F256 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the primary application of the ST32F256?
It is designed for secure mobile applications, specifically smartcard applications.
Does the device include a hardware encryption accelerator?
Yes, it includes a hardware Data Encryption Standard (DES) accelerator.
Does the device support smartcard protocols?
Yes, it offers a serial communication interface fully compatible with ISO 7816-3 standard.
What development tools are available for this chip?
Tools include an Instruction Set Simulator, C compiler, and a hardware emulator.