DS1743WP-120+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits
Use: Real-Time Clock (RTC)
Characteristics: Non-volatile, Battery-backed SRAM
Package: 28-pin DIP (Dual In-line Package)
Essence: Reliable timekeeping and data storage solution
Packaging/Quantity: Individually packaged, quantity per package varies

Specifications

Model Number: DS1743WP-120+
Supply Voltage: 4.5V to 5.5V
Operating Temperature Range: -40°C to +85°C
Clock Accuracy: ±2 minutes per month at 25°C
Data Retention: Over 10 years
Memory Size: 32K x 8 bits
Interface: Parallel

Detailed Pin Configuration

The DS1743WP-120+ features a 28-pin DIP package with the following pin configuration:

| Pin No. | Name | Description | |---------|------|-------------| | 1 | VCC | Power supply voltage input | | 2 | GND | Ground | | 3 | CE | Chip Enable | | 4 | OE | Output Enable | | 5 | WE | Write Enable | | 6-13 | A0-A7| Address Inputs | | 14-21 | D0-D7| Data Inputs/Outputs | | 22 | SQW | Square Wave Output | | 23 | RST | Reset Input | | 24 | VBAT | Battery Backup Input | | 25-28 | NC | No Connection |

Functional Features

Accurate real-time clock functionality
Non-volatile memory for data storage
Battery backup ensures data retention during power loss
Parallel interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - Reliable timekeeping with ±2 minutes per month accuracy - Long data retention period of over 10 years - Easy integration due to parallel interface

Disadvantages: - Limited memory size (32K x 8 bits) - Requires an external battery for backup

Working Principles

The DS1743WP-120+ combines a real-time clock with non-volatile SRAM to provide accurate timekeeping and data storage capabilities. The device is powered by an external supply voltage (VCC) and also features a battery backup input (VBAT) to ensure data retention during power loss. The parallel interface allows for seamless communication with microcontrollers, enabling easy integration into various applications.

Detailed Application Field Plans

The DS1743WP-120+ finds application in a wide range of fields, including: 1. Embedded systems 2. Industrial automation 3. Medical devices 4. Automotive electronics 5. Consumer electronics

Detailed and Complete Alternative Models

DS1742W-120+: Similar to DS1743WP-120+, but with a smaller memory size of 16K x 8 bits.
DS1744W-120+: Offers the same features as DS1743WP-120+, but with a larger memory size of 64K x 8 bits.
DS1746W-120+: Combines real-time clock functionality with a larger non-volatile memory size of 256K x 8 bits.

These alternative models provide options with varying memory sizes to suit different application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací DS1743WP-120+ v technických řešeních

Sure! Here are 10 common questions and answers related to the application of DS1743WP-120+ in technical solutions:

Q: What is the DS1743WP-120+? A: The DS1743WP-120+ is a real-time clock (RTC) module with non-volatile SRAM, commonly used for timekeeping and data storage in various technical applications.
Q: How does the DS1743WP-120+ keep track of time? A: The DS1743WP-120+ has an integrated crystal oscillator that provides accurate timekeeping functionality, even when the power is disconnected.
Q: Can the DS1743WP-120+ be used in battery-powered devices? A: Yes, the DS1743WP-120+ can operate on a wide range of supply voltages, including battery power, making it suitable for portable or low-power applications.
Q: What is the capacity of the non-volatile SRAM in the DS1743WP-120+? A: The DS1743WP-120+ has a non-volatile SRAM capacity of 32 kilobits (4 kilobytes), which can be used for data storage even during power loss.
Q: How is the DS1743WP-120+ interfaced with a microcontroller or system? A: The DS1743WP-120+ uses a standard I2C interface, allowing easy integration with most microcontrollers or systems supporting I2C communication.
Q: Can the DS1743WP-120+ generate alarms or interrupts? A: Yes, the DS1743WP-120+ has programmable alarm functions that can trigger interrupts or set output pins high/low based on specific time conditions.
Q: Is the DS1743WP-120+ temperature-compensated for accurate timekeeping? A: Yes, the DS1743WP-120+ includes an integrated temperature sensor that compensates for temperature variations, ensuring accurate timekeeping.
Q: Can the DS1743WP-120+ be used in industrial environments? A: Yes, the DS1743WP-120+ is designed to operate reliably in a wide temperature range (-40°C to +85°C) and can withstand harsh industrial conditions.
Q: Does the DS1743WP-120+ support battery backup for SRAM during power loss? A: Yes, the DS1743WP-120+ has an integrated lithium coin cell battery backup, allowing it to retain data in the non-volatile SRAM during power interruptions.
Q: Are there any software libraries or example code available for programming the DS1743WP-120+? A: Yes, Maxim Integrated provides software libraries and example code for various microcontroller platforms, making it easier to integrate and program the DS1743WP-120+ in technical solutions.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.