32-bit ARM Cortex M3 RISC microcontroller featuring 64KB Flash program memory and 16KB RAM. This surface-mount device is housed in a 64-pin QFN EP package with an exposed pad, measuring 9x9x0.85mm with a 0.5mm pin pitch. It operates at a maximum clock rate of 40 MHz and supports I2C and UART interfaces, along with 16 ADC channels. Programmable I/Os include 51, and the device supports operating voltages up to 5.5V.
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| Basic Package Type | Non-Lead-Frame SMT |
| Package Family Name | QFN |
| Package/Case | QFN EP |
| Package Description | Quad Flat No Lead Package, Exposed Pad |
| Lead Shape | No Lead |
| Pin Count | 64 |
| PCB | 64 |
| Package Length (mm) | 9 |
| Package Width (mm) | 9 |
| Package Height (mm) | 0.85(Max) |
| Seated Plane Height (mm) | 0.85 |
| Pin Pitch (mm) | 0.5 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Family Name | FM3 |
| Data Bus Width | 32bit |
| Instruction Set Architecture | RISC |
| Maximum Clock Rate | 40MHz |
| Maximum CPU Frequency | 40MHz |
| Device Core | ARM Cortex M3 |
| Program Memory Type | Flash |
| Program Memory Size | 64KB |
| RAM Size | 16KB |
| Number of Programmable I/Os | 51 |
| Core Architecture | ARM |
| Programmability | Yes |
| Number of Timers | 6 |
| Interface Type | I2C/UART |
| CAN | 0 |
| I2C | 1 |
| SPI | 0 |
| Ethernet | 0 |
| UART | 1 |
| USART | 0 |
| USB | 0 |
| I2S | 0 |
| Max Operating Supply Voltage | 5.5V |
| ADC Channels | 16 |
| Number of ADCs | Single |
| Cage Code | 65786 |
| EU RoHS | No |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | 3A991.a |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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