8-bit CISC microcontroller featuring a 48 MHz clock rate and 8051 core architecture. This unpackaged, surface-mount die offers 64KB Flash program memory, 4.25KB RAM, and 40 programmable I/Os. Integrated peripherals include 6 timers, 2 I2C, 1 SPI, and 2 UART interfaces, along with a single USB port. Operates from 3.3V/5V with a maximum supply voltage of 5.25V, suitable for -40°C to 85°C environments. Includes 32 ADC channels.
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| Package Family Name | Die |
| Package/Case | Die |
| Package Description | An Unpackaged, Fully Tested Integrated Circuit Chip |
| Pin Count | 54 |
| PCB | 54 |
| Package Length (mm) | 2.58 |
| Package Width (mm) | 2.26 |
| Package Height (mm) | 0.3 |
| Seated Plane Height (mm) | 0.3 |
| Mounting | Surface Mount |
| Family Name | C8051F38x |
| Data Bus Width | 8bit |
| Instruction Set Architecture | CISC |
| Maximum Clock Rate | 48MHz |
| Maximum CPU Frequency | 48MHz |
| Device Core | 8051 |
| Program Memory Type | Flash |
| Program Memory Size | 64KB |
| RAM Size | 4.25KB |
| Number of Programmable I/Os | 40 |
| Core Architecture | 8051 |
| Programmability | Yes |
| Number of Timers | 6 |
| Interface Type | I2C/SMBus/SPI/UART/USB |
| CAN | 0 |
| I2C | 2 |
| SPI | 1 |
| Ethernet | 0 |
| UART | 2 |
| USART | 0 |
| USB | 1 |
| I2S | 0 |
| Max Operating Supply Voltage | 5.25V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 85°C |
| ADC Channels | 32 |
| Number of ADCs | Single |
| Cage Code | 6SQ24 |
| EU RoHS | Yes |
| HTS Code | 8542390001 |
| Schedule B | 8542390000 |
| ECCN | 3A991.a.2 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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