PIC16C74B - Uncategorized Microchip - Free user manual and instructions
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| Product Type | 8-bit microcontroller (MCU) |
| Brand | Microchip Technology |
| Model | PIC16C74B |
| Category | Uncategorized / Integrated Circuit |
| CPU Architecture | PIC 8-bit RISC |
| Number of Instructions | 35 single-word instructions |
| Program Memory Type | EPROM (OTP or windowed versions) |
| Program Memory Size | 4K words (14-bit wide) |
| Data RAM | 192 bytes |
| Digital I/O Pins | 33 |
| Analog-to-Digital Converter | 8 channels, 8-bit resolution |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Communication Interfaces | USART, SPI, I2C (via SSP) |
| Capture / Compare / PWM | 2 modules |
| Parallel Slave Port | Yes |
| Maximum Clock Frequency | 20 MHz with external crystal |
| Operating Voltage | 5 V DC nominal |
| Operating Temperature Range | 0 °C to +70 °C (commercial grade) |
| Package Type | 40-pin PDIP, 44-pin PLCC, 44-pin TQFP |
| Dimensions (PDIP) | Approx. 53.3 mm × 15.2 mm |
| Weight (PDIP) | Approx. 6 g |
| Maintenance and Cleaning | Keep pins clean; wipe with a dry anti-static cloth; avoid moisture and solvents |
| Safety Precautions | Use ESD protection; do not exceed voltage ratings; handle by package body |
| Spare Parts / Repairability | Device is not field-repairable; replace with a programmed PIC16C74B if faulty |
Frequently Asked Questions - PIC16C74B Microchip
What is the PIC16C74B?
The PIC16C74B is an 8-bit microcontroller manufactured by Microchip Technology. It combines a RISC CPU with onboard EPROM program memory, RAM, I/O pins, analog-to-digital converter and communication interfaces.
How much program memory does the PIC16C74B have?
It has 4K words of EPROM program memory, with each word being 14 bits wide. This corresponds to about 8 KB of program storage.
What is the maximum clock speed?
The PIC16C74B can operate with an external oscillator up to 20 MHz. This yields a maximum instruction cycle rate of 5 million instructions per second.
How many I/O pins are available?
The device provides 33 digital I/O pins, organized into five ports: A, B, C, D, and E. Many of these pins also have alternate analog or communication functions.
Does the PIC16C74B have an analog-to-digital converter?
Yes, it includes an 8-channel, 8-bit ADC. The analog inputs are multiplexed on Port A and some other pins.
What communication peripherals does it support?
It supports USART for asynchronous serial communication, and a SSP (Synchronous Serial Port) that provides both SPI and I2C modes. A Parallel Slave Port is also available.
What is the recommended supply voltage?
The device is designed for a 5 V DC nominal supply. For reliable operation, keep the voltage within the manufacturer's specified tolerance and filter the supply with a decoupling capacitor.
Can I program the PIC16C74B in-circuit?
Depending on the version, the EPROM device can be programmed with a compatible programmer before mounting. Use appropriate programming pins and follow Microchip's programming specification for reliable results.
How should I handle the PIC16C74B during assembly?
Touch the package only by its body, work at an ESD-safe workstation, and use anti-static gloves or wrist straps. Avoid contact with the pins to prevent electrostatic discharge damage.
Is the PIC16C74B repairable if it fails?
The microcontroller itself is not field-repairable. If it becomes faulty, it must be replaced with a new programmed device. Check for solder joints and voltage supply before replacing.
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USER MANUAL PIC16C74B Microchip
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Product information
Brand : Microchip
Model : PIC16C74B
Category : Uncategorized