M48T18-100MH1

The M48T18-100MH1 is a 8K x 8 non-volatile static RAM and real-time clock IC with a parallel interface. It combines the features of a static RAM, a non-volatile controller, and a crystal, providing an integrated solution for timekeeping and system supervision in various applications.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• VCC: Positive Power Supply
• VSS: Ground
• CE/IO: Chip Enable/Input or Output Control
• WE: Write Enable
• OE: Output Enable
• DS: Data/Address Status
• A0-A13: Address Inputs
• DQ0-DQ7: Data Input/Output
• VBAT: Battery Input
• NC: No Connection

Circuit Diagram

An illustrative circuit diagram demonstrating the connections and operation of the M48T18-100MH1 IC can be included to provide a visual representation.

Key Features

• 8K x 8 Non-Volatile SRAM: The M48T18-100MH1 integrates non-volatile static RAM with a real-time clock, offering reliable data retention and timekeeping functionality.
• Parallel Interface: This IC features a parallel interface for easy integration with microcontrollers and other digital systems.
• Battery Backup: The M48T18-100MH1 includes a battery input to ensure continuous operation and data retention during power loss or system shutdown.
• Absolute Timekeeper: With a built-in real-time clock, this IC provides accurate timekeeping and supervision capabilities for system management.
• Automatic Power-Fail Detect and Switch Circuitry: The IC includes automatic power-fail detection and switchover circuitry to maintain uninterrupted timekeeping in the event of power loss.

Note: For detailed technical specifications, please refer to the M48T18-100MH1 datasheet.

Application

• Embedded Systems: Ideal for use in embedded systems, such as industrial controllers and instrumentation, to provide non-volatile storage and real-time clock functionality.
• Smart Grid and Energy Management: Suitable for applications in smart grid systems and energy management solutions requiring reliable timekeeping and data retention.
• Security Systems: The M48T18-100MH1 can be employed in security and access control systems to maintain accurate time and event logging.

Functionality

The M48T18-100MH1 offers a comprehensive solution for non-volatile data storage and real-time clock functionality, making it well-suited for applications that require continuous data retention and accurate timekeeping.

Usage Guide

• Power Supply: Connect VCC (Pin) to the positive power supply and VSS (Pin) to ground.
• Data and Address Connections: Utilize the address inputs (A0-A13) and data input/output pins (DQ0-DQ7) for data transfer and addressing.
• Battery Backup: Connect a suitable battery to the VBAT pin for providing backup power to the IC.

Frequently Asked Questions

Q: Can the M48T18-100MH1 retain data without power?
A: Yes, the M48T18-100MH1 is a non-volatile SRAM, capable of retaining data even in the absence of power, thanks to its integrated battery backup.

Q: Is the real-time clock feature accurate over extended periods?
A: The real-time clock functionality of the M48T18-100MH1 provides accurate timekeeping over extended periods, offering reliable system supervision and time management.