| Part Number | AT89C5122D-ALRUM | AT89C5122D-ALTUM |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers |
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| Product Status | Obsolete | Obsolete |
| Core Processor | 80C51 | 8051 |
| Core Size | 8-Bit | 8-Bit |
| Speed | 48MHz | 48MHz |
| Connectivity | SmartCard, SPI, UART/USART, USB | SmartCard, SPI, UART/USART, USB |
| Peripherals | LED, POR, WDT | LED, POR, WDT |
| Number of I/O | 46 | 46 |
| Program Memory Size | 32KB (32K x 8) | 32KB (32K x 8) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | - | - |
| RAM Size | 768 x 8 | 768 x 8 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 5.5V | 3V ~ 5.5V |
| Data Converters | - | - |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-LQFP | 64-LQFP |
| Supplier Device Package | 64-VQFP (10x10) | 64-VQFP (10x10) |