| Part Number | AT89LP52-20AU | AT89LP52-20MU | 
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Active | Active | 
| Core Processor | 8051 | 8051 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 20MHz | 20MHz | 
| Connectivity | EBI/EMI, I²C, SPI, UART/USART | EBI/EMI, I²C, SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | 
| Number of I/O | 36 | 36 | 
| Program Memory Size | 8KB (8K x 8) | 8KB (8K x 8) | 
| Program Memory Type | Flash | Flash | 
| EEPROM Size | - | - | 
| RAM Size | 256 x 8 | 256 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 5.5V | 2.4V ~ 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 | 44-TQFP | 44-VFQFN Exposed Pad | 
| Supplier Device Package | 44-TQFP (10x10) | 44-VQFN (7x7) |