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16CR58S Technical Summary

Overview

The 16CR58S is a high-performance, 8-bit microcontroller from Microchip Technology's PIC16C5X family. It is designed for embedded control applications, offering a robust architecture with integrated peripherals, low power consumption, and high-speed execution. The device is based on an enhanced RISC CPU core, providing efficient performance for real-time applications.

Key highlights include an 8-bit real-time clock/counter (TMR0), versatile I/O capabilities, and a wide operating voltage range, making it suitable for a variety of industrial, automotive, and consumer applications.

Features

• 8-Bit RISC Architecture: Efficient and high-speed execution with a reduced instruction set.
• 8-Bit Real-Time Clock/Counter (TMR0): Includes an 8-bit prescaler for flexible timing applications.
• Memory Organization:
  • Up to 2KB of program memory (ROM).
  • Up to 80 bytes of data memory (RAM).
  • 64 bytes of EEPROM for non-volatile data storage (varies by model).
• I/O Ports: Multiple bidirectional I/O pins with individual direction control.
• Low Power Consumption: Supports sleep mode for power-sensitive applications.
• Wide Operating Voltage: Typically 2.0V to 5.5V, suitable for battery-powered devices.
• Integrated Oscillator: Supports RC, XT, LP, and HS oscillator modes.
• Watchdog Timer (WDT): Enhances system reliability with an on-chip watchdog timer.
• High-Endurance EEPROM: Supports up to 100,000 write/erase cycles.

Applications

The 16CR58S is widely used in embedded control systems across various industries. Key applications include:

• Industrial Automation: Motor control, sensor interfacing, and process monitoring.
• Consumer Electronics: Remote controls, smart home devices, and toys.
• Automotive Systems: Dashboard controls, lighting systems, and simple ECU functions.
• Medical Devices: Portable diagnostic equipment and wearable health monitors.
• Security Systems: Access control, alarms, and surveillance devices.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (VDD): -0.3V to +7.0V
• Input Voltage (VIN): -0.3V to VDD + 0.3V
• Operating Temperature Range: -40°C to +85°C (industrial grade)
• Storage Temperature Range: -65°C to +150°C

DC Characteristics

• Supply Voltage (VDD): 2.0V to 5.5V (standard operation)
• Low-Power Sleep Current: < 1 µA (typical at 3V)
• Input High Voltage (VIH): 0.8VDD to VDD
• Input Low Voltage (VIL): 0V to 0.2VDD
• Output High Voltage (VOH): VDD - 0.7V (min at 4mA)
• Output Low Voltage (VOL): 0.6V (max at 8.5mA)

AC Characteristics

• Instruction Cycle Time: 1 µs (at 4MHz clock)
• Timer0 Clock Input Frequency: DC to 50MHz
• Reset Pulse Width: 100 ns (minimum)
• Watchdog Timer Period: 18 ms (nominal, with no prescaler)

Package Information

The 16CR58S is available in multiple package options to suit various design requirements:

• 18-Pin PDIP (Plastic Dual In-Line Package): Industry-standard through-hole package.
• 18-Pin SOIC (Small Outline Integrated Circuit): Surface-mount package for compact designs.
• 20-Pin SSOP (Shrink Small Outline Package): Ultra-thin profile for space-constrained applications.

Pin Configuration (18-Pin PDIP Example)

• RA0-RA3: Port A bidirectional I/O pins.
• RB0-RB7: Port B bidirectional I/O pins.
• MCLR: Master Clear (Reset) input.
• OSC1/CLKIN: Oscillator input or external clock source.
• OSC2/CLKOUT: Oscillator output or clock output.
• VDD: Positive supply voltage.
• VSS: Ground reference.

Development Support

Microchip provides comprehensive development tools for the 16CR58S, including:

• MPLAB IDE: Integrated development environment for code writing, debugging, and simulation.
• PICkit Programmers: Affordable in-circuit debuggers and programmers.
• Third-Party Compilers: Support for C and assembly language development.
• Reference Designs: Example schematics and firmware for common applications.

Conclusion

The 16CR58S is a versatile and reliable microcontroller suitable for a wide range of embedded control applications. Its combination of low power consumption, robust peripherals, and flexible packaging options makes it an excellent choice for designers seeking a cost-effective yet powerful solution. With strong development support from Microchip, integrating the 16CR58S into new or existing systems is streamlined and efficient.

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