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| Part Number | C8051F971-A-GM | C8051F975-A-GM | C8051F972-A-GM | C8051F971-A-GMR | C8051F961-A-GM | C8051F970-A-GM |
|---|---|---|---|---|---|---|
| Manufacturer | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Product Status | Not For New Designs | Not For New Designs | Not For New Designs | Not For New Designs | Obsolete | Not For New Designs |
| Core Processor | CIP-51™ | CIP-51™ | CIP-51™ | CIP-51™ | 8051 | CIP-51™ |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz | 25MHz |
| Connectivity | I²C/SMBus, I²C Slave, SPI, UART/USART | I²C/SMBus, I²C Slave, SPI, UART/USART | I²C/SMBus, I²C Slave, SPI, UART/USART | I²C/SMBus, I²C Slave, SPI, UART/USART | I²C, SPI, UART/USART | I²C/SMBus, I²C Slave, SPI, UART/USART |
| Peripherals | CapSense, DMA, POR, PWM, WDT | CapSense, DMA, POR, PWM, WDT | CapSense, DMA, POR, PWM, WDT | CapSense, DMA, POR, PWM, WDT | DMA, LCD, POR, PWM, WDT | CapSense, DMA, POR, PWM, WDT |
| Number of I/O | 28 | 19 | 19 | 28 | 34 | 43 |
| Program Memory Size | 32KB (32K x 8) | 16KB (16K x 8) | 32KB (32K x 8) | 32KB (32K x 8) | 128KB (128K x 8) | 32KB (32K x 8) |
| Program Memory Type | Flash | Flash | Flash | Flash | Flash | Flash |
| EEPROM Size | - | - | - | - | - | - |
| RAM Size | 8K x 8 | 4K x 8 | 8K x 8 | 8K x 8 | 8.25K x 8 | 8K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.6V | 1.8V ~ 3.8V | 1.8V ~ 3.6V |
| Data Converters | A/D 28x10b | A/D 19x10b | A/D 19x10b | A/D 28x10b | A/D 16x10b/12b | A/D 43x10b |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 32-VFQFN Exposed Pad | 24-WFQFN Exposed Pad | 24-WFQFN Exposed Pad | 32-VFQFN Exposed Pad | 40-VFQFN Exposed Pad | 48-WFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) | 24-QFN (4x4) | 24-QFN (4x4) | 32-QFN (5x5) | 40-QFN (6x6) | 48-QFN (6x6) |
