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| Part Number | AT89C5131A-S3SIM | AT89C5131A-S3SUM |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Active |
| Core Processor | 80C51 | 80C51 |
| Core Size | 8-Bit | 8-Bit |
| Speed | 48MHz | 48MHz |
| Connectivity | I²C, SPI, UART/USART, USB | I²C, SPI, UART/USART, USB |
| Peripherals | LED, POR, PWM, WDT | LED, POR, PWM, WDT |
| Number of I/O | 34 | 34 |
| Program Memory Size | 32KB (32K x 8) | 32KB (32K x 8) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | 4K x 8 | 4K x 8 |
| RAM Size | 1.25K x 8 | 1.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Data Converters | - | - |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 52-LCC (J-Lead) | 52-LCC (J-Lead) |
| Supplier Device Package | 52-PLCC (19.15x19.15) | 52-PLCC (19.15x19.15) |
