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DS1747P-70IND+

DS1747P-70IND+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)
Use: Real-Time Clock (RTC) with Non-Volatile RAM (NVRAM)
Characteristics: Low-power, high-performance, non-volatile memory
Package: 24-Pin PDIP (Plastic Dual In-Line Package)
Essence: Combines real-time clock and non-volatile RAM in a single chip
Packaging/Quantity: Individually packaged, quantity per package varies

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Clock Frequency: 32.768kHz
  • Memory Size: 4K x 8 bits
  • Data Retention: Over 10 years
  • Write Endurance: 10^6 cycles
  • I/O Type: Parallel

Pin Configuration

The DS1747P-70IND+ has a total of 24 pins. The pin configuration is as follows:

  1. VCC - Power supply voltage
  2. GND - Ground
  3. X1 - Crystal oscillator input
  4. X2 - Crystal oscillator output
  5. NC - No connection
  6. CE - Chip enable
  7. OE - Output enable
  8. WE - Write enable
  9. A0-A10 - Address inputs
  10. DQ0-DQ7 - Data inputs/outputs
  11. RST - Reset
  12. VBAT - Battery backup voltage 13-24. NC - No connection

Functional Features

  • Real-time clock with calendar functionality
  • Non-volatile RAM for data storage
  • Automatic power-fail detection and switch circuitry
  • Battery backup support for data retention during power loss
  • Software-controlled clock calibration
  • Alarm and interrupt functions

Advantages

  • Integration of real-time clock and non-volatile RAM reduces component count and board space requirements
  • Low power consumption extends battery life in portable devices
  • High-performance operation ensures accurate timekeeping and reliable data storage
  • Automatic power-fail detection prevents data loss during power interruptions

Disadvantages

  • Limited memory size may not be sufficient for certain applications requiring larger data storage
  • Parallel I/O interface may not be compatible with all systems or require additional level shifting circuitry

Working Principles

The DS1747P-70IND+ combines a real-time clock and non-volatile RAM on a single chip. The real-time clock keeps track of time, date, and day of the week using an internal oscillator and a crystal connected to X1 and X2 pins. The non-volatile RAM provides storage for critical data that needs to be retained even when power is lost. The chip automatically detects power failures and switches to battery backup mode to ensure data integrity.

Application Field Plans

The DS1747P-70IND+ is commonly used in various applications such as: - Embedded systems - Industrial automation - Medical equipment - Automotive electronics - Consumer electronics

Alternative Models

  • DS1746P-70IND+: Similar to DS1747P-70IND+ but without battery backup support
  • DS1744P-70IND+: Real-time clock with non-volatile SRAM instead of NVRAM
  • DS1742W-120IND+: Real-time clock with battery-backed SRAM

Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.

In conclusion, the DS1747P-70IND+ is a versatile integrated circuit that combines a real-time clock and non-volatile RAM in a single package. Its low-power, high-performance characteristics make it suitable for a wide range of applications. However, its limited memory size and parallel I/O interface may pose limitations in certain scenarios.

10 domande e risposte comuni relative all'applicazione di DS1747P-70IND+ nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of DS1747P-70IND+ in technical solutions:

  1. Q: What is the DS1747P-70IND+? A: The DS1747P-70IND+ is a non-volatile static RAM (NVSRAM) integrated circuit that combines high-performance SRAM with a non-volatile electrically erasable programmable read-only memory (EEPROM).

  2. Q: What are the key features of the DS1747P-70IND+? A: The key features include a 32K (4K x 8) NVSRAM, unlimited write cycles, automatic power-fail chip deselect and write protection, and a wide operating voltage range.

  3. Q: How can the DS1747P-70IND+ be used in technical solutions? A: It can be used as a reliable non-volatile memory solution for applications that require data retention during power loss or system shutdowns, such as industrial automation, medical devices, and energy management systems.

  4. Q: What is the operating voltage range of the DS1747P-70IND+? A: The DS1747P-70IND+ operates within a voltage range of 4.5V to 5.5V.

  5. Q: Does the DS1747P-70IND+ support unlimited write cycles? A: Yes, the DS1747P-70IND+ supports unlimited write cycles, making it suitable for applications that require frequent data updates.

  6. Q: Can the DS1747P-70IND+ retain data during power loss? A: Yes, the DS1747P-70IND+ has a non-volatile EEPROM component that allows it to retain data even when power is lost.

  7. Q: Is the DS1747P-70IND+ compatible with standard microcontrollers? A: Yes, the DS1747P-70IND+ uses a standard parallel interface and is compatible with most microcontrollers.

  8. Q: Does the DS1747P-70IND+ have any write protection features? A: Yes, the DS1747P-70IND+ has automatic power-fail chip deselect and write protection features to prevent accidental data corruption.

  9. Q: What is the temperature range in which the DS1747P-70IND+ can operate? A: The DS1747P-70IND+ can operate within a temperature range of -40°C to +85°C.

  10. Q: Are there any specific application notes or guidelines available for using the DS1747P-70IND+? A: Yes, the manufacturer provides detailed application notes and guidelines that can help users integrate the DS1747P-70IND+ into their technical solutions effectively.

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