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| Part Number | P89LPC952FA,512 | P89LPC952FAB512 | 
|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | 
| Product Status | Obsolete | Active | 
| Core Processor | 8051 | 8051 | 
| Core Size | 8-Bit | 8-Bit | 
| Speed | 18MHz | 18MHz | 
| Connectivity | I²C, SPI, UART/USART | I²C, SPI, UART/USART | 
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | 
| Number of I/O | 40 | 40 | 
| Program Memory Size | 8KB (8K x 8) | 8KB (8K x 8) | 
| Program Memory Type | Flash | Flash | 
| EEPROM Size | - | - | 
| RAM Size | 512 x 8 | 512 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 3.6V | 2.4V ~ 3.6V | 
| Data Converters | A/D 8x10b | A/D 8x10b | 
| Oscillator Type | Internal | Internal | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 
| Supplier Device Package | 44-PLCC (16.59x16.59) | 44-PLCC |