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| Part Number | PIC16C74B-20E/P | PIC16C74B-20I/P | PIC16C74B-20E/PQ | PIC16C74B-20E/PT | PIC16C74A-20E/P | PIC16C74B-20/P | PIC16C74B-20E/L |
|---|---|---|---|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Product Status | Active | Active | Obsolete | Obsolete | Active | Active | Obsolete |
| Core Processor | PIC | PIC | PIC | PIC | PIC | PIC | PIC |
| Core Size | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit | 8-Bit |
| Speed | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz | 20MHz |
| Connectivity | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART | I²C, SPI, UART/USART |
| 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 | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Program Memory Size | 7KB (4K x 14) | 7KB (4K x 14) | 7KB (4K x 14) | 7KB (4K x 14) | 7KB (4K x 14) | 7KB (4K x 14) | 7KB (4K x 14) |
| Program Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | OTP |
| EEPROM Size | - | - | - | - | - | - | - |
| RAM Size | 192 x 8 | 192 x 8 | 192 x 8 | 192 x 8 | 192 x 8 | 192 x 8 | 192 x 8 |
| Voltage - Supply (Vcc/Vdd) | 4V ~ 5.5V | 4V ~ 5.5V | 4V ~ 5.5V | 4V ~ 5.5V | 4V ~ 6V | 4V ~ 5.5V | 4V ~ 5.5V |
| Data Converters | A/D 8x8b | A/D 8x8b | A/D 8x8b | A/D 8x8b | A/D 8x8b | A/D 8x8b | A/D 8x8b |
| Oscillator Type | 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) | 0°C ~ 70°C (TA) | -40°C ~ 125°C (TA) |
| Mounting Type | Through Hole | Through Hole | Surface Mount | Surface Mount | Through Hole | Through Hole | Surface Mount |
| Package / Case | 40-DIP (0.600", 15.24mm) | 40-DIP (0.600", 15.24mm) | 44-QFP | 44-TQFP | 40-DIP (0.600", 15.24mm) | 40-DIP (0.600", 15.24mm) | 44-LCC (J-Lead) |
| Supplier Device Package | 40-PDIP | 40-PDIP | 44-MQFP (10x10) | 44-TQFP (10x10) | 40-PDIP | 40-PDIP | 44-PLCC (16.59x16.59) |
