IC MCU 8BIT 64KB FLASH 44VQFP
| Parameter Name | Attribute value |
| core processor | 80C51 |
| core size | 8-bit |
| speed | 60MHz |
| Connectivity | I²C，SPI，UART/USART |
| Peripheral | POR，PWM，WDT |
| Number of I/Os | 34 |
| Program storage capacity | 64KB（64K x 8） |
| Program memory type | flash memory |
| EEPROM capacity | 2K x 8 |
| RAM capacity | 2K x 8 |
| Voltage - Power Supply (Vcc/Vdd) | 2.7 V ~ 5.5 V |
| data converter | - |
| Oscillator type | external |
| Operating temperature | -40°C ~ 85°C（TA） |
| Package/casing | 44-LQFP |
| Supplier device packaging | 44-VQFP（10x10） |
| AT89C51ID2-RLRIM | AT89C51ID2-RLRUM | AT89C51ID2-SLRIM | AT89C51ID2-SLRUM | AT89C51ID2-RLTIM | |
|---|---|---|---|---|---|
| Description | IC MCU 8BIT 64KB FLASH 44VQFP | 8-bit Microcontrollers - MCU C51ID2 64K FLASH 32KHz 3-5.5V | IC MCU 8BIT 64KB FLASH 44PLCC | IC MCU 8BIT 64KB FLASH 44PLCC | IC MCU 8BIT 64KB FLASH 44VQFP |
| speed | 60MHz | 60 MHz | 60MHz | 60 MHz | 60MHz |
| core processor | 80C51 | - | 80C51 | - | 80C51 |
| core size | 8-bit | - | 8-bit | - | 8-bit |
| Connectivity | I²C，SPI，UART/USART | - | I²C，SPI，UART/USART | - | I²C，SPI，UART/USART |
| Peripheral | POR，PWM，WDT | - | POR，PWM，WDT | - | POR，PWM，WDT |
| Number of I/Os | 34 | - | 34 | - | 34 |
| Program storage capacity | 64KB（64K x 8） | - | 64KB（64K x 8） | - | 64KB（64K x 8） |
| Program memory type | flash memory | - | flash memory | - | flash memory |
| EEPROM capacity | 2K x 8 | - | 2K x 8 | - | 2K x 8 |
| RAM capacity | 2K x 8 | - | 2K x 8 | - | 2K x 8 |
| Voltage - Power Supply (Vcc/Vdd) | 2.7 V ~ 5.5 V | - | 2.7 V ~ 5.5 V | - | 2.7 V ~ 5.5 V |
| Oscillator type | external | - | external | - | external |
| Operating temperature | -40°C ~ 85°C（TA） | - | -40°C ~ 85°C（TA） | - | -40°C ~ 85°C（TA） |
| Package/casing | 44-LQFP | - | 44-LCC (J-lead) | - | 44-LQFP |
| Supplier device packaging | 44-VQFP（10x10） | - | 44-PLCC（16.59x16.59） | - | 44-VQFP（10x10） |
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