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| Part Number | ST72F521AR6T6 | ST72F521AR9T6 |
|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics |
| Product Status | Not For New Designs | Obsolete |
| Core Processor | ST7 | ST7 |
| Core Size | 8-Bit | 8-Bit |
| Speed | 8MHz | 8MHz |
| Connectivity | CANbus, I²C, SCI, SPI | CANbus, I²C, SCI, SPI |
| Peripherals | LVD, POR, PWM, WDT | LVD, POR, PWM, WDT |
| Number of I/O | 48 | 48 |
| Program Memory Size | 32KB (32K x 8) | 60KB (60K x 8) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | - | - |
| RAM Size | 1K x 8 | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 3.8V ~ 5.5V | 3.8V ~ 5.5V |
| Data Converters | A/D 16x10b | A/D 16x10b |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-LQFP | 64-LQFP |
| Supplier Device Package | - | - |
