| Part Number | AT90S4433-8AI | AT90S4434-8AI |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers |
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| Product Status | Obsolete | Obsolete |
| Core Processor | AVR | AVR |
| Core Size | 8-Bit | 8-Bit |
| Speed | 8MHz | 8MHz |
| Connectivity | SPI, UART/USART | SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | POR, PWM, WDT |
| Number of I/O | 20 | 32 |
| Program Memory Size | 4KB (2K x 16) | 4KB (2K x 16) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | 256 x 8 | 256 x 8 |
| RAM Size | 128 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 6V | 4V ~ 6V |
| Data Converters | A/D 6x10b | A/D 8x10b |
| Oscillator Type | External | Internal |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 32-TQFP | 44-TQFP |
| Supplier Device Package | 32-TQFP (7x7) | 44-TQFP (10x10) |