ST72521xx-Auto 8-bit MCU for automotive with 32/60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C, CAN interface
This document is a datasheet for the ST72521xx-Auto, an 8-bit microcontroller designed for automotive applications. It features 32 to 60 Kbyte of dual voltage High Density Flash (HDFlash) or ROM with readout protection, and 1 to 2 Kbyte of RAM. The device supports data retention for 20 years and has a flash endurance of 100 cycles.
The microcontroller includes a variety of peripherals and interfaces suitable for automotive use, such as a 10-bit ADC with up to 16 input ports, 5 timers, SPI, SCI, 12C, and a CAN interface compliant with 2.0B passive. It also features an enhanced low voltage supervisor (LVD) and an auxiliary voltage detector (AVD) with interrupt capability.
| Flash Memory Size | 32 to 60 Kbyte |
|---|---|
| RAM Size | 1 to 2 Kbyte |
| Flash Endurance | 100 cycles |
| Data Retention | 20 years |
| ADC Resolution | 10-bit |
| I/O Ports | Up to 64 |
| Multifunctional I/O Lines | 48 |
| Alternate Function Lines | 34 |
| High Sink Outputs | 16 |
| Interrupt Vectors | 14 plus TRAP and RESET |
| External Interrupt Lines | 15 |
The flash endurance is 100 cycles.
Yes, in-circuit programming is supported for HDFlash devices.