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| Part Number | P87C54SBAA,512 | P87C554SBAA,512 | P87C54UBAA,512 | P87C51SBAA,512 | P87C52SBAA,512 |
|---|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
| Core Processor | 8051 | 8051 | 8051 | 8051 | 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 16MHz | 16MHz | 33MHz | 16MHz | 16MHz |
| Connectivity | EBI/EMI, UART/USART | EBI/EMI, I²C, UART/USART | EBI/EMI, UART/USART | EBI/EMI, UART/USART | EBI/EMI, UART/USART |
| Peripherals | POR | POR, PWM, WDT | POR | POR | POR |
| Number of I/O | 32 | 40 | 32 | 32 | 32 |
| Program Memory Size | 16KB (16K x 8) | 16KB (16K x 8) | 16KB (16K x 8) | 4KB (4K x 8) | 8KB (8K x 8) |
| Program Memory Type | OTP | OTP | OTP | OTP | OTP |
| EEPROM Size | - | - | - | - | - |
| RAM Size | 256 x 8 | 512 x 8 | 256 x 8 | 128 x 8 | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 4.5V ~ 5.5V | 2.7V ~ 5.5V | 2.7V ~ 5.5V |
| Data Converters | - | A/D 8x10b | - | - | - |
| Oscillator Type | Internal | Internal | Internal | Internal | Internal |
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 44-LCC (J-Lead) | 68-LCC (J-Lead) | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 44-LCC (J-Lead) |
| Supplier Device Package | 44-PLCC (16.59x16.59) | 68-PLCC (24.18x24.18) | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) |
