DS1216E

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DS1216E DataSheet

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DS1216E Details

The DS1216E is a real-time clock chip with battery backup, designed for use in electronic devices requiring precise timekeeping from Maxim Integrated Products. This device is ideal for applications where accurate timing and memory storage are crucial.

Key Features

  • Built-in CMOS Watch Function: Provides a reliable and accurate clock function for precise timekeeping.
  • NV RAM Controller Circuit: Enables the storage of data in non-volatile memory, suitable for applications requiring persistent data storage.
  • Embedded Lithium Energy Source: Offers a reliable power source for backup and primary operation.

Applications

  • Smartwatch RAM and ROM Devices: The DS1216E is suitable for use in smartwatch devices requiring precise timekeeping, memory storage, and power backup.

Where to Use

The DS1216E is ideal for applications where accurate timing and memory storage are crucial. It can be used in various devices such as smartwatches, fitness trackers, and other wearable electronics.

How to Use

To use the DS1216E, connect it to your device's power supply and configure the pinouts according to the datasheet. The built-in CMOS watch function can be used for precise timekeeping, while the NV RAM controller circuit enables data storage. For detailed usage instructions, refer to the datasheet.

Application Circuit

The application circuit diagram for the DS1216E illustrates how to connect the device to your system. It includes connections for power supply, ground, and clock signals, ensuring proper operation and reliable timekeeping.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Complementary

The DS1216E can be complemented by other Maxim Integrated Products, such as the MAX1550, which offers additional features and functionality for more demanding applications.

When selecting complementary devices, ensure that their features and specifications align with your specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the accuracy of the DS1216E's built-in CMOS watch function?

A: The DS1216E's built-in CMOS watch function offers an accuracy of ±1 minute per year. For more details, refer to the datasheet for specific operating conditions and limitations.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category ! Memory Controllers RoHS N
Memory Type ! Smartwatch ROM Battery Backup Switching Yes
Supply Voltage - Max 5.5 V Supply Voltage - Min 4.5 V
Operating Supply Current 5 mA Minimum Operating Temperature 0 C
Maximum Operating Temperature ! + 70 C Mounting Style Through Hole
Package / Case DIP-28 Brand Analog Devices / Maxim Integrated
Description/Function Watch function remains transparent to the RAM Height 10.67 mm
Length 35.31 mm Lithium Battery Monitor Yes
Number of Memory Channels 1 Operating Supply Voltage ! 5 V
Product Type ! Memory Controllers Series DS1216
Factory Pack Quantity 13 Subcategory Memory & Data Storage
Type SmartWatch ROM Width 17.53 mm
Part # Aliases DS1216 90-1216E-000 Unit Weight 0.147724 oz

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification DS1216E PDF Download

FAQs

What is DS1216E?

The DS1216E is a smart battery IC from Maxim Integrated. It is designed to provide intelligent battery management for portable and handheld devices, offering features such as gas gauging, temperature monitoring, and authentication.

How Does DS1216E Work?

The DS1216E works by integrating a microcontroller, a fuel gauge, and other essential features to monitor and manage the performance of the connected battery. It communicates with the host system via an I2C interface, providing information on battery capacity, voltage, temperature, and other vital parameters.

How Many Pins does DS1216E have and What are the Functions of the Pinout Configuration?

The DS1216E is housed in a small package and typically comes in a BGA (Ball Grid Array) or QFN (Quad Flat No-Lead) package. The pinout configuration includes:

  • VDD: Power supply pin.
  • GND: Ground pin.
  • SCL, SDA: I2C communication interface pins.
  • TS: Temperature sense pin for monitoring battery temperature.
  • ADC, DEC, DOUT, DIN: Analog-to-digital converter interface pins.
  • CC, CE, RESET, ALERT: Control and status pins for system communication and management.

What are the Pros and Cons of DS1216E?

Pros:

  • Intelligent Battery Management: Offers advanced features for accurate gas gauging and temperature monitoring.
  • Integrated Microcontroller: Provides flexibility and programmability for customized battery management algorithms.
  • Secure Authentication: Ensures the authenticity and security of the connected battery.
  • Compact Design: The small form factor package enables space-efficient integration in portable devices.
  • Flexible Communication Interface: Supports I2C communication for easy interfacing with the host system.

Cons:

  • Complex Implementation: Requires careful integration and consideration of battery management algorithms.
  • Cost: Smart battery management ICs may have a higher cost compared to simpler alternatives.
  • Layout Considerations: Requires attention to layout and signal integrity for optimal performance.

Are There Any Equivalents/Alternatives to DS1216E for Recommendation?

  • The BQ27510-G3 from Texas Instruments provides similar smart battery management features.
  • Alternatives to the DS1216E include the MAX17843 from Maxim Integrated and the BQ27426-G1 from Texas Instruments.

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