32-bit ARM Cortex M3 RISC microcontroller featuring 128KB Flash program memory and 32KB RAM. This surface-mount device operates at a maximum clock rate of 50 MHz and supports multiple interfaces including Ethernet, I2C, SSI, and UART. Housed in a 100-pin LQFP package with a 0.5mm pin pitch, it offers 41 programmable I/Os and 4 ADC channels. Operating voltage ranges from 2.75V to 3.6V, with an extended temperature range of -40°C to 105°C.
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Texas Instruments LM3S6637-EQC50-A2 technical specifications.
| 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 | 100 |
| PCB | 100 |
| Package Length (mm) | 14.2(Max) |
| Package Width (mm) | 14.2(Max) |
| Package Height (mm) | 1.45(Max) |
| Seated Plane Height (mm) | 1.6(Max) |
| Pin Pitch (mm) | 0.5 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-026 |
| Family Name | Stellaris |
| Data Bus Width | 32bit |
| Instruction Set Architecture | RISC |
| Maximum Clock Rate | 50MHz |
| Maximum CPU Frequency | 50MHz |
| Device Core | ARM Cortex M3 |
| Program Memory Type | Flash |
| Program Memory Size | 128KB |
| RAM Size | 32KB |
| Number of Programmable I/Os | 41 |
| Core Architecture | ARM |
| Programmability | Yes |
| Number of Timers | 6 |
| Interface Type | Ethernet/I2C/SSI/UART |
| CAN | 0 |
| I2C | 1 |
| SPI | 0 |
| Ethernet | 1 |
| UART | 2 |
| USART | 0 |
| USB | 0 |
| I2S | 0 |
| Max Operating Supply Voltage | 2.75|3.6V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 105°C |
| ADC Channels | 4 |
| Number of ADCs | Single |
| Cage Code | 01295 |
| EU RoHS | Yes |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | 3A991.a.2 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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