SX48 52

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SX48 52 Technical Summary

Overview

The SX48 52 is a high-performance microcontroller featuring a rich set of I/O capabilities, flexible timer modules, and in-system programmability. Designed for embedded applications requiring efficient real-time processing, this component integrates Flash memory, SRAM, and multiple peripherals into a compact package. With symmetrical source/sink capabilities on its bidirectional I/O pins, the SX48 52 is well-suited for applications demanding precision timing, PWM control, and multi-input wake-up functionality.

Features

• High-Speed Performance: Capable of 50 MIPS at 50 MHz oscillator frequency.
• Memory:
  • 4,096 x 12-bit EE/Flash program memory (rated for 10,000 rewrite cycles).
  • 256 x 8-bit SRAM for data storage.
• Timers:
  • Two 16-bit timers with 8-bit prescalers.
  • Supports multiple modes:
    • Software Timer mode.
    • Pulse Width Modulation (PWM) mode.
    • Simultaneous PWM/Capture mode.
    • External Event mode.
• I/O Pins:
  • Bidirectional I/O pins with symmetrical source/sink capability.
  • TTL/CMOS/ST-compatible input levels.
  • Multiple pins support Multi-Input Wake-Up (MIWU) functionality.
• Programming & Clocking:
  • In-system programming via OSC pins.
  • Internal RC oscillator with configurable rates (from 31.25 kHz).
• Additional Peripherals:
  • Comparator with positive/negative inputs and output.
  • Real-Time Clock/Counter (RTCC) input.
  • Master Clear Reset (MCLR) with active-low input.

Applications

The SX48 52 is ideal for a wide range of embedded applications, including:

• Motor Control: PWM and capture modes enable precise motor speed and position control.
• Power Management: Timer modules facilitate efficient switching and regulation.
• Sensor Interfaces: Bidirectional I/O pins with wake-up functionality support low-power sensor networks.
• Consumer Electronics: Real-time clock and in-system programming simplify firmware updates.
• Industrial Automation: High-speed processing and robust I/O capabilities suit PLCs and control systems.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_DD): -0.3V to +6.5V.
• Input Voltage (V_IN): -0.3V to V_DD + 0.3V.
• Operating Temperature: -40°C to +85°C (industrial grade).

DC Characteristics

• Input High Voltage (V_IH): 0.8V_DD (min) for TTL/CMOS.
• Input Low Voltage (V_IL): 0.2V_DD (max) for TTL/CMOS.
• Output High Current (I_OH): ±20 mA (symmetrical source/sink).
• Output Low Current (I_OL): ±20 mA (symmetrical source/sink).

AC Characteristics

• Oscillator Frequency: Up to 50 MHz (external crystal).
• Internal RC Oscillator: Configurable from 31.25 kHz.
• Timer Resolution: 16-bit with 8-bit prescaler.

Package Information

The SX48 52 is available in a 52-pin package with the following pinout details:

• Port A (RA0-RA7): Bidirectional I/O pins (TTL/CMOS). RA4-RA7 are exclusive to the 52-pin package.
• Port B (RB0-RB7): Bidirectional I/O with MIWU, comparator, and timer T1 functionality.
• Port C (RC0-RC7): Bidirectional I/O with timer T2 functionality.
• Port D (RD0-RD7): General-purpose bidirectional I/O.
• Port E (RE0-RE7): General-purpose bidirectional I/O.
• Special Pins:
  • RTCC: Real-Time Clock/Counter input.
  • MCLR: Active-low Master Clear reset.
  • OSC1/In/V_PP: Crystal oscillator input or external clock source.
  • OSC2/Out: Crystal oscillator output (pulled to V_DD in R/C mode).

Conclusion

The SX48 52 is a versatile microcontroller offering high-speed processing, extensive I/O flexibility, and advanced timer features. Its robust memory options, in-system programmability, and multi-functional pins make it a compelling choice for developers in industrial, automotive, and consumer electronics sectors. Whether used for PWM-driven motor control or low-power sensor monitoring, this component delivers reliable performance in a compact 52-pin package.

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