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| Part Number | PIC16C55A-20E/SO | PIC16C55A-20I/SO | PIC16C55A-20E/SP | PIC16C55A-20E/SS | PIC16C55AT-20E/SO | PIC16C554-20E/SO | PIC16C558-20E/SO | PIC16C55A-20/SO |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Obsolete | Active | Obsolete | Active | Obsolete | Obsolete | Obsolete | Active |
| Core Processor | PIC | PIC | PIC | PIC | PIC | PIC | PIC | PIC |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz |
| Connectivity | - | - | - | - | - | - | - | - |
| Peripherals | POR, WDT | POR, WDT | POR, WDT | POR, WDT | POR, WDT | POR, WDT | POR, WDT | POR, WDT |
| Number of I/O | 20 | 20 | 20 | 20 | 20 | 13 | 13 | 20 |
| Program Memory Size | 768B (512 x 12) | 768B (512 x 12) | 768B (512 x 12) | 768B (512 x 12) | 768B (512 x 12) | 896B (512 x 14) | 3.5KB (2K x 14) | 768B (512 x 12) |
| Program Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | OTP | OTP |
| EEPROM Size | - | - | - | - | - | - | - | - |
| RAM Size | 25 x 8 | 25 x 8 | 25 x 8 | 25 x 8 | 25 x 8 | 80 x 8 | 128 x 8 | 25 x 8 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V | 3V ~ 5.5V |
| Data Converters | - | - | - | - | - | - | - | - |
| Oscillator Type | External | External | External | External | External | External | External | External |
| Operating Temperature | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | 0°C ~ 70°C (TA) |
| Mounting Type | Surface Mount | Surface Mount | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 28-SOIC (0.295", 7.50mm Width) | 28-SOIC (0.295", 7.50mm Width) | 28-DIP (0.300", 7.62mm) | 28-SSOP (0.209", 5.30mm Width) | 28-SOIC (0.295", 7.50mm Width) | 18-SOIC (0.295", 7.50mm Width) | 18-SOIC (0.295", 7.50mm Width) | 28-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 28-SOIC | 28-SOIC | 28-SPDIP | 28-SSOP | 28-SOIC | 18-SOIC | 18-SOIC | 28-SOIC |
