DS1213C

Product Overview

• Category: Integrated Circuit
• Use: Memory Chip
• Characteristics: Non-volatile, Low-power, High-speed
• Package: DIP (Dual In-line Package)
• Essence: Non-volatile memory with real-time clock/calendar
• Packaging/Quantity: 1 piece per package

Specifications

• Memory Size: 256 bytes
• Real-Time Clock Accuracy: ±2 minutes per month at 25°C
• Operating Voltage: 2.7V to 5.5V
• Data Retention: Minimum of 10 years
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The DS1213C has a total of 16 pins arranged as follows:

1. VCC - Power Supply
2. GND - Ground
3. X1 - Crystal Oscillator Input
4. X2 - Crystal Oscillator Output
5. RST - Reset Input
6. CLK - Clock Output
7. I/O0 - Bidirectional Data I/O Line 0
8. I/O1 - Bidirectional Data I/O Line 1
9. I/O2 - Bidirectional Data I/O Line 2
10. I/O3 - Bidirectional Data I/O Line 3
11. CE - Chip Enable Input
12. SCLK - Serial Clock Input
13. SI - Serial Data Input
14. SO - Serial Data Output
15. WP - Write Protect Input
16. VBAT - Battery Backup Input

Functional Features

• Non-volatile memory for data storage
• Real-time clock/calendar functionality
• Low-power consumption
• High-speed operation
• Battery backup support for data retention during power loss
• Write protection feature to prevent accidental modification of stored data

Advantages and Disadvantages

Advantages: - Non-volatile memory ensures data retention even without power - Real-time clock/calendar provides accurate timekeeping functionality - Low-power consumption extends battery life - High-speed operation allows for efficient data transfer - Write protection feature prevents accidental data modification

Disadvantages: - Limited memory size (256 bytes) - Accuracy of the real-time clock may vary with temperature changes

Working Principles

The DS1213C combines non-volatile memory and a real-time clock to provide reliable data storage and timekeeping capabilities. The non-volatile memory ensures that stored data is retained even when power is disconnected. The real-time clock accurately tracks time and date information, allowing for various time-based applications.

Detailed Application Field Plans

The DS1213C can be used in various applications, including but not limited to:

1. Embedded systems requiring non-volatile memory and real-time clock functionality
2. Data loggers and recorders
3. Time-sensitive devices such as timers and alarms
4. Industrial automation systems
5. Medical equipment requiring time-stamped data

Detailed and Complete Alternative Models

1. DS1213D: Similar to DS1213C but with increased memory size (512 bytes)
2. DS1213E: Enhanced version with extended operating temperature range (-40°C to +125°C)
3. DS1213F: Higher accuracy real-time clock (±1 minute per month at 25°C)

These alternative models offer additional features or improved specifications compared to the DS1213C, catering to specific application requirements.

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