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| Part Number | PIC16C64AT-20E/L | PIC16C64AT-20I/L | PIC16C65AT-20E/L | PIC16C64A-20E/L | PIC16C64AT-10E/L | PIC16C64AT-20/L | 
|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | 
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | 
| Core Processor | PIC | PIC | PIC | PIC | PIC | PIC | 
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 
| Speed | 20MHz | 20MHz | 20MHz | 20MHz | 10MHz | 20MHz | 
| Connectivity | I²C, SPI | I²C, SPI | I²C, SPI, UART/USART | I²C, SPI | I²C, SPI | I²C, SPI | 
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT | 
| Number of I/O | 33 | 33 | 33 | 33 | 33 | 33 | 
| Program Memory Size | 3.5KB (2K x 14) | 3.5KB (2K x 14) | 7KB (4K x 14) | 3.5KB (2K x 14) | 3.5KB (2K x 14) | 3.5KB (2K x 14) | 
| Program Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | 
| EEPROM Size | - | - | - | - | - | - | 
| RAM Size | 128 x 8 | 128 x 8 | 192 x 8 | 128 x 8 | 128 x 8 | 128 x 8 | 
| Voltage - Supply (Vcc/Vdd) | 4V ~ 6V | 4V ~ 6V | 4V ~ 6V | 4V ~ 6V | 4V ~ 6V | 4V ~ 6V | 
| Data Converters | - | - | - | - | - | - | 
| Oscillator Type | 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) | 0°C ~ 70°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | 
| Package / Case | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 44-LCC (J-Lead) | 
| Supplier Device Package | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) | 44-PLCC (16.59x16.59) |