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| Part Number | P87C52SBPN,112 | P87C54SBPN,112 | P87C52UBPN,112 | P87C51SBPN,112 |
|---|---|---|---|---|
| Manufacturer | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. | NXP USA Inc. |
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Core Processor | 8051 | 8051 | 8051 | 8051 |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 16MHz | 16MHz | 33MHz | 16MHz |
| Connectivity | EBI/EMI, UART/USART | EBI/EMI, UART/USART | EBI/EMI, UART/USART | EBI/EMI, UART/USART |
| Peripherals | POR | POR | POR | POR |
| Number of I/O | 32 | 32 | 32 | 32 |
| Program Memory Size | 8KB (8K x 8) | 16KB (16K x 8) | 8KB (8K x 8) | 4KB (4K x 8) |
| Program Memory Type | OTP | OTP | OTP | OTP |
| EEPROM Size | - | - | - | - |
| RAM Size | 256 x 8 | 256 x 8 | 256 x 8 | 128 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V | 2.7V ~ 5.5V | 4.5V ~ 5.5V | 2.7V ~ 5.5V |
| Data Converters | - | - | - | - |
| Oscillator Type | 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) |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Package / Case | 40-DIP (0.600", 15.24mm) | 40-DIP (0.600", 15.24mm) | 40-DIP (0.600", 15.24mm) | 40-DIP (0.600", 15.24mm) |
| Supplier Device Package | 40-DIP | 40-DIP | 40-DIP | 40-DIP |
