The ST72F521, ST72521B is an 80/64-pin 8-bit MCU produced by STMicroelectronics with 32 to 60K FLASH/ROM, ADC, five timers, SPI, SCI, I2C, CAN interface, etc.
The ST72F521 and ST72521B are members of the ST7 microcontroller family, designed for mid-range applications with a CAN bus interface. They are available with 32K to 60K Flash or ROM program memory, 1K to 2K RAM, and packages including TQFP80 and TQFP64. Under software control, the devices can enter WAIT, SLOW, ACTIVE-HALT or HALT mode to reduce power consumption.
This datasheet covers the pin description, register and memory map, Flash program memory, central processing unit, supply/reset/clock management, interrupts, power saving modes, I/O ports, and on-chip peripherals. It also includes the instruction set, electrical characteristics, package characteristics, device configuration and ordering information, and known limitations.
| Program memory | 32K to 60K Flash or ROM |
|---|---|
| RAM | 1K to 2K |
| Operating voltage | 3.8 V to 5.5 V |
| Temperature range | -40°C to +125°C |
| ADC | 10-bit, 16 input ports |
| 16-bit timers | Two |
| Instruction set | 63 basic instructions |
| Packages | TQFP80 14x14, TQFP64 14x14, TQFP64 10x10 |
The operating voltage range is 3.8 V to 5.5 V.
The devices offer 32K to 60K Flash or ROM program memory.
The ADC is 10-bit and has 16 input ports.
Yes, the devices include a CAN interface (2.0B Passive).