| Part Number | C8051F988-GU | C8051F988-GUR | 
|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | 
| Category | Embedded - Microcontrollers | Embedded - Microcontrollers | 
|   |   | |
| Product Status | Obsolete | Obsolete | 
| Core Processor | CIP-51 8051 | CIP-51 8051 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 25MHz | 25MHz | 
| Connectivity | SMBus (2-Wire/I²C), SPI, UART/USART | SMBus (2-Wire/I²C), SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT | 
| Number of I/O | 17 | 17 | 
| Program Memory Size | 4KB (4K x 8) | 4KB (4K x 8) | 
| Program Memory Type | Flash | Flash | 
| EEPROM Size | - | - | 
| RAM Size | 512 x 8 | 512 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 
| Data Converters | A/D 10x10b | A/D 10x10b | 
| Oscillator Type | Internal | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 24-SSOP (0.154", 3.90mm Width) | 24-SSOP (0.154", 3.90mm Width) | 
| Supplier Device Package | 24-QSOP | 24-QSOP |