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| Part Number | ST72F621J4B1 | ST72F621J4T1 | ST72F621K4B1 |
|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Status | Obsolete | Obsolete | Obsolete |
| Core Processor | ST7 | ST7 | ST7 |
| Core Size | 8-Bit | 8-Bit | 8-Bit |
| Speed | 8MHz | 8MHz | 8MHz |
| Connectivity | SCI, SPI, USB | SCI, SPI, USB | SCI, SPI, USB |
| Peripherals | DMA, LVD, POR, PWM, WDT | DMA, LVD, POR, PWM, WDT | DMA, LVD, POR, PWM, WDT |
| Number of I/O | 31 | 31 | 21 |
| Program Memory Size | 16KB (16K x 8) | 16KB (16K x 8) | 16KB (16K x 8) |
| Program Memory Type | Flash | Flash | Flash |
| EEPROM Size | - | - | - |
| RAM Size | 768 x 8 | 768 x 8 | 768 x 8 |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 5.5V | 4V ~ 5.5V | 4V ~ 5.5V |
| Data Converters | A/D 8x10b | A/D 8x10b | A/D 8x10b |
| Oscillator Type | Internal | Internal | Internal |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Through Hole | Surface Mount | Through Hole |
| Package / Case | 42-DIP (0.600", 15.24mm) | 44-LQFP | 32-SDIP (0.400", 10.16mm) |
| Supplier Device Package | - | - | - |
