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| Part Number | DS87C550-QCL+ |
| Datasheet | DS87C550-QCL+ datasheet |
| Description | IC MCU 8BIT 8KB OTP 68PLCC |
| Manufacturer | Maxim Integrated |
| Series | 87C |
| Part Status | Obsolete |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 33MHz |
| Connectivity | EBI/EMI, SIO, UART/USART |
| Peripherals | Power-Fail Reset, PWM, WDT |
| Number of I/O | 55 |
| Program Memory Size | 8KB (8K x 8) |
| Program Memory Type | OTP |
| EEPROM Size | - |
| RAM Size | 1K x 8 |
| Voltage - Supply (Vcc/Vdd) | 4.5V ~ 5.5V |
| Data Converters | A/D 6x10b |
| Oscillator Type | External |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Package / Case | Surface Mount |
| Supplier Device Package | 68-LCC (J-Lead) |
| Base Part Number | 68-PLCC (24.23x24.23) |