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| TYPE | DESCRIPTION |
| Factory Lead Time | 6 Weeks |
| Contact Plating | Tin |
| Mounting Type | Surface Mount |
| Package / Case | 32-LQFP |
| Surface Mount | YES |
| Number of Pins | 32 |
| Operating Temperature | -40°C~85°C TA |
| Packaging | Tray |
| Published | 2000 |
| Series | C8051F31x |
| JESD-609 Code | e3 |
| Pbfree Code | yes |
| Part Status | Not For New Designs |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Number of Terminations | 32 |
| Termination | SMD/SMT |
| Technology | CMOS |
| Terminal Position | QUAD |
| Terminal Form | GULL WING |
| Supply Voltage | 3V |
| Terminal Pitch | 0.8mm |
| Frequency | 25MHz |
| Base Part Number | C8051F31 |
| Pin Count | 32 |
| Operating Supply Voltage | 3.3V |
| Supply Voltage-Max (Vsup) | 3.6V |
| Number of Channels | 5 |
| Interface | 2-Wire, I2C, SMBus, SPI, UART, USART |
| Memory Size | 8kB |
| Oscillator Type | Internal |
| Number of I/O | 29 |
| RAM Size | 1.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V~3.6V |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Core Processor | 8051 |
| Peripherals | POR, PWM, WDT |
| Program Memory Type | FLASH |
| Core Size | 8-Bit |
| Program Memory Size | 8KB 8K x 8 |
| Connectivity | SMBus (2-Wire/I2C), SPI, UART/USART |
| Bit Size | 8 |
| Access Time | 25 μs |
| Has ADC | NO |
| DMA Channels | NO |
| Data Bus Width | 8b |
| PWM Channels | YES |
| Number of Timers/Counters | 4 |
| Density | 64 kb |
| Number of ADC Channels | 25 |
| Number of I2C Channels | 1 |
| Height | 1.45mm |
| Length | 7mm |
| Width | 7mm |
| Radiation Hardening | No |
| REACH SVHC | No SVHC |
| RoHS Status | RoHS Compliant |
| Lead Free | Lead Free |