32-bit ARM Cortex M4 RISC microcontroller featuring 512KB Flash program memory and 64KB RAM. This MCU operates at a maximum clock rate of 50 MHz and offers 56 programmable I/Os. It includes multiple interfaces such as I2C (2), SPI (1), UART (4), I2S (1), and USB (1). The device is housed in an 80-pin LQFP package with a 0.5mm pin pitch, designed for surface mounting. Operating voltage ranges from 1.8V to 3.6V, with an operating temperature range of -40°C to 105°C. Additional peripherals include 20 ADC channels and a single 12-bit DAC.
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| Basic Package Type | Lead-Frame SMT |
| Package Family Name | QFP |
| Package/Case | LQFP |
| Package Description | Low Profile Quad Flat Package |
| Lead Shape | Gull-wing |
| Pin Count | 80 |
| PCB | 80 |
| Package Length (mm) | 12 |
| Package Width (mm) | 12 |
| Package Height (mm) | 1.45(Max) |
| Seated Plane Height (mm) | 1.6(Max) |
| Pin Pitch (mm) | 0.5 |
| Package Weight (g) | 0.491 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Family Name | K22 |
| Data Bus Width | 32bit |
| Instruction Set Architecture | RISC |
| Maximum Clock Rate | 50MHz |
| Maximum CPU Frequency | 50MHz |
| Device Core | ARM Cortex M4 |
| Program Memory Type | Flash |
| Program Memory Size | 512KB |
| RAM Size | 64KB |
| Number of Programmable I/Os | 56 |
| Core Architecture | ARM |
| Programmability | Yes |
| Number of Timers | 6 |
| Interface Type | I2C/I2S/SPI/UART/USB |
| CAN | 0 |
| I2C | 2 |
| SPI | 1 |
| Ethernet | 0 |
| UART | 4 |
| USART | 0 |
| USB | 1 |
| I2S | 1 |
| Max Operating Supply Voltage | 3.6V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 105°C |
| ADC Channels | 20 |
| Number of ADCs | Single |
| DAC Channels | 1 |
| DAC Resolution | 12bit |
| Number of DACs | Single |
| Cage Code | H1R01 |
| EU RoHS | Yes |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | 3A991.a.2 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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