DS1904L-F5

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DS1904L-F5

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Spécifications

Vue d'ensemble

Description

The DS1904L-F5 is a specialized real-time clock (RTC) integrated circuit designed for low-power applications, particularly in consumer electronics and battery-operated devices. It features a precise timekeeping function with an accuracy of ±3 minutes per year, making it suitable for applications requiring accurate time and date tracking.
Key features include a 32.768 kHz oscillator, multiple power modes to extend battery life, and the ability to maintain time even during power failures. The DS1904L-F5 offers a simple interface for communication with microcontrollers, typically through I2C or SPI protocols. Additionally, it may include programmable alarms and timers, and it can operate over a wide voltage range, making it versatile for various projects.
Overall, the DS1904L-F5 is ideal for applications in smart home devices, wearable technology, and other systems where maintaining accurate time is critical while minimizing power consumption.

Features

The DS1904L-F5 is a real-time clock (RTC) from Maxim Integrated, designed for low-power applications. Key features include:
1. Timekeeping: Accurate timekeeping with a 32.768 kHz crystal oscillator.
2. Low Power Consumption: Operates with minimal power, ideal for battery-operated devices.
3. Temperature Compensation: Maintains accuracy across a wide temperature range.
4. Alarm Functions: Includes programmable alarms for wake-up signals.
5. I2C Interface: Communicates with microcontrollers via an I2C interface for easy integration.
6. Power Management: Supports a battery backup mode to retain time during power outages.
7. Calendar Functionality: Tracks time, date, day of the week, and can handle leap years.
8. Compact Size: Available in a small package, making it suitable for space-constrained designs.
These features make the DS1904L-F5 a versatile choice for applications in consumer electronics, industrial equipment, and IoT devices.

Package

The DS1904L-F5 is packaged in a 5-pin SOT-23 package. This compact surface-mount package is designed for space-saving applications while providing easy integration into electronic circuits.

Pinout

The DS1904L-F5 is a 1-Wire® real-time clock (RTC) device that features a total of 8 pins. The pin functions are as follows:
1. GND: Ground reference.
2. VCC: Supply voltage (typically +2.0V to +5.5V).
3. DQ: 1-Wire data line for communication.
4. SCL: Serial clock input for data synchronization.
5. SDA: Serial data line for data transfer (used in some specific configurations).
6. IRQ: Interrupt request output for signaling time-related events.
7. RST: Reset pin to initialize the device.
8. X1/X2: External crystal oscillator connections.
The DS1904L-F5 primarily functions as a real-time clock that maintains accurate time and date information while providing 1-Wire communication for data retrieval and control. It is designed for applications that require timekeeping in systems with low power consumption.

Manufacturer

The DS1904L-F5 is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various integrated circuits, which are widely used in electronics. The company specializes in analog and embedded processing chips and is a leading provider of digital signal processors (DSPs), microcontrollers, and other components essential for various applications, including automotive, industrial, communication, and consumer electronics. Founded in 1930, TI has a long history of innovation and development in the semiconductor industry, and it continues to be a major player in the market.

Application

The DS1904L-F5 is primarily used in applications requiring temperature logging and monitoring. It is suitable for industrial environments, HVAC systems, data centers, and food safety, where precise temperature tracking is crucial. Additionally, it can be utilized in automotive systems for monitoring engine temperatures and in medical devices for maintaining proper conditions in pharmaceuticals and laboratory settings. Its features enable effective temperature management and compliance with safety standards across these sectors.

Equivalent

Equivalent products to the DS1904L-F5 chip include the DS1904, DS1904L, and similar real-time clock (RTC) chips from other manufacturers, such as MCP7940N from Microchip and RTC-8564 from NXP. Be sure to check specifications for compatibility, features, and pin configurations.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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