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| Part Number | P89LPC9401FBD,551 | P89LPC9401FBD,557 |
|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. |
| Product Status | Obsolete | Obsolete |
| 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, LCD, LED, POR, PWM, WDT | Brown-out Detect/Reset, LCD, LED, POR, PWM, WDT |
| Number of I/O | 23 | 23 |
| Program Memory Size | 8KB (8K x 8) | 8KB (8K x 8) |
| Program Memory Type | Flash | Flash |
| EEPROM Size | - | - |
| RAM Size | 256 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.4V ~ 3.6V | 2.4V ~ 3.6V |
| Data Converters | - | - |
| Oscillator Type | Internal | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 64-LQFP | 64-LQFP |
| Supplier Device Package | 64-LQFP (14x14) | 64-LQFP (14x14) |
