8-bit CISC microcontroller featuring an 80C51 core, 8KB Flash program memory, and 512B RAM. Operates at up to 18 MHz with 26 programmable I/Os and 5 timers. Supports I2C, SPI, and UART interfaces. Packaged in a 28-pin PLCC (Plastic Leaded Chip Carrier) for surface mounting, with a J-lead shape and 1.27mm pin pitch. Offers wide operating voltage compatibility (2.5V/3.3V/5V) and a temperature range of -40°C to 85°C.
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| Basic Package Type | Lead-Frame SMT |
| Package Family Name | LCC |
| Package/Case | PLCC |
| Package Description | Plastic Leaded Chip Carrier |
| Lead Shape | J-Lead |
| Pin Count | 28 |
| PCB | 28 |
| Package Length (mm) | 11.58(Max) |
| Package Width (mm) | 11.58(Max) |
| Package Height (mm) | 3.68(Min) |
| Seated Plane Height (mm) | 4.57(Max) |
| Pin Pitch (mm) | 1.27 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-018AB |
| Family Name | P89 |
| Data Bus Width | 8bit |
| Instruction Set Architecture | CISC |
| Maximum Clock Rate | 18MHz |
| Maximum CPU Frequency | 18MHz |
| Device Core | 80C51 |
| Program Memory Type | Flash |
| Program Memory Size | 8KB |
| RAM Size | 512B |
| Number of Programmable I/Os | 26 |
| Core Architecture | 8051 |
| Programmability | Yes |
| Number of Timers | 5 |
| Interface Type | I2C/SPI/UART |
| CAN | 0 |
| I2C | 1 |
| SPI | 1 |
| Ethernet | 0 |
| UART | 1 |
| USART | 0 |
| USB | 0 |
| I2S | 0 |
| Max Operating Supply Voltage | 5.5V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 85°C |
| Cage Code | H1R01 |
| EU RoHS | Yes |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| ECCN | EAR99 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2011/65/EU, 2015/863 |
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