DS1238AS-10/T&R

Product Overview

Category

The DS1238AS-10/T&R belongs to the category of integrated circuits, specifically a real-time clock (RTC) module.

Use

This product is used to keep track of time and date in various electronic devices, such as computers, embedded systems, and consumer electronics.

Characteristics

• Low power consumption
• Accurate timekeeping
• Small form factor
• Integrated battery backup

Package

The DS1238AS-10/T&R comes in a small surface-mount package, making it suitable for compact electronic designs.

Essence

The essence of this product lies in its ability to provide reliable timekeeping functionality in a wide range of applications.

Packaging/Quantity

The DS1238AS-10/T&R is typically packaged in tape and reel format, with a quantity of 2500 units per reel.

Specifications

• Operating Voltage: 2.97V to 5.5V
• Timekeeping Current: 400nA (typical)
• Accuracy: ±2 minutes per month at 25°C
• Temperature Range: -40°C to +85°C
• Interface: I2C

Detailed Pin Configuration

The DS1238AS-10/T&R features a standard 8-pin SOIC package with the following pin configuration: 1. VCC 2. GND 3. SDA (Serial Data) 4. SCL (Serial Clock) 5. NC (Not Connected) 6. RST (Reset) 7. SQW/OUT (Square Wave Output) 8. VBAT (Battery Input)

Functional Features

• Real-time clock with calendar
• Battery backup for continuous timekeeping
• Programmable square wave output
• Alarm function
• I2C interface for communication

Advantages and Disadvantages

Advantages

• Low power consumption extends battery life
• Accurate timekeeping ensures reliability
• Small form factor for space-constrained designs

Disadvantages

• Limited temperature range compared to industrial-grade RTCs
• Requires external crystal for timekeeping accuracy

Working Principles

The DS1238AS-10/T&R utilizes an internal oscillator and a battery backup to maintain accurate timekeeping even when the main power source is disconnected. It communicates with the host system through the I2C interface, allowing for easy integration into various electronic devices.

Detailed Application Field Plans

The DS1238AS-10/T&R is well-suited for applications such as: - Embedded systems - Portable electronics - Automotive systems - Industrial automation - Medical devices

Detailed and Complete Alternative Models

• DS3231: Offers higher temperature range and improved accuracy
• MCP7940N: Provides additional non-volatile memory and alarm functions
• PCF8563: Suitable for low-power applications with extended temperature range

In conclusion, the DS1238AS-10/T&R is a versatile real-time clock module with low power consumption, accurate timekeeping, and a compact form factor, making it an ideal choice for a wide range of electronic applications.

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