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Name: BQ3285LFSS-A1
Brand: Texas Instruments
SKU: BQ3285LFSS-A1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments BQ3285LFSS-A1

Part No.:: BQ3285LFSS-A1

Manufacturer:: Texas Instruments

Package:: 24-SSOP (0.154, 3.90mm Width)

Datasheet:: BQ3285LFSS-A1.pdf

Description:: IC RTC CLK/CALENDAR PAR 24-QSOP

In Stock:: 57900

Quantity:: Add To Cart

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BQ3285LFSS-A1 Specifications

Package/Case:
24-SSOP (0.154, 3.90mm Width)
Packaging:
Tube,Tube
Series:
-
ProductStatus:
Obsolete
Type:
Clock/Calendar
Features:
Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
MemorySize:
242B
TimeFormat:
HH:MM:SS (12/24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
Parallel
Voltage-Supply:
2.7V ~ 5.5V
Voltage-SupplyBattery:
2.4V ~ 4V
Current-Timekeeping(Max):
100µA @ 3V
OperatingTemperature:
0°C ~ 70°C
MountingType:
Surface Mount

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BQ3285LFSS-A1 information

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Basic introduction and simple engineering application of BQ3285LFSS-A1

BQ3285LFSS-A1 is a real-time clock (RTC) chip designed by Texas Instruments, commonly used in electronic devices to keep track of time and date information even when the device is powered off. It offers high accuracy timekeeping, low power consumption, and various features suitable for a wide range of applications.

Introduction:

The BQ3285LFSS-A1 RTC chip is widely used in electronic devices such as digital watches, alarm clocks, data loggers, and embedded systems where accurate timekeeping is essential. It comes in a small form factor and is easy to integrate into electronic designs.

Key Features:

- High accuracy timekeeping with low drift over temperature and voltage variations.

- Built-in temperature compensation for enhanced precision.

- Automatic leap year compensation and daylight saving time adjustments.

- Battery backup support to maintain time and date information during power loss.

Application Example: Digital Clock

To demonstrate the functionality of the BQ3285LFSS-A1 RTC chip, let's build a simple digital clock using an Arduino microcontroller.

Materials Needed:

- Arduino board (e.g., Arduino Uno)

- BQ3285LFSS-A1 RTC module

- 16x2 LCD display

- Breadboard and jumper wires

Connection Setup:

1. Connect the SDA pin of the RTC module to the A4 pin on the Arduino board.

2. Connect the SCL pin of the RTC module to the A5 pin on the Arduino board.

3. Connect the VCC and GND pins of the RTC module to the respective power and ground pins on the Arduino board.

4. Connect the data pins of the LCD display to any digital pins on the Arduino board, and connect the control pins (RS, RW, EN) to other digital pins.

5. Connect the backlight pins of the LCD display to VCC and GND for backlight illumination.

Arduino Sketch:

Upload the following Arduino sketch to display the current time from the BQ3285LFSS-A1 RTC module on the LCD display:

#include 
#include 
#include 

RTC_DS1307 rtc;

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
lcd.begin(16, 2);
Wire.begin();
rtc.begin();

if (!rtc.isrunning()) {
lcd.print("RTC is not running!");
while (1);
}
}

void loop() {
DateTime now = rtc.now();

lcd.clear();
lcd.print("Time: ");
lcd.print(now.hour());
lcd.print(":");
if (now.minute() < 10) { lcd.print("0"); } lcd.print(now.minute()); lcd.print(":"); if (now.second() < 10) { lcd.print("0"); } lcd.print(now.second()); delay(1000); }

Experiment:

1. Connect the Arduino board to your computer and upload the provided sketch.

2. After uploading, disconnect the Arduino from the computer and power it using an external power source (e.g., a USB power adapter).

3. The LCD display should now show the current time retrieved from the BQ3285LFSS-A1 RTC module.

4. Test the accuracy of the clock by comparing it with a reliable time source (e.g., an online clock or mobile phone).

5. Experiment with additional features of the BQ3285LFSS-A1 RTC module, such as setting alarms or configuring periodic interrupts.

Conclusion:

In this experiment, we demonstrated the basic functionality of the BQ3285LFSS-A1 RTC chip by building a simple digital clock using an Arduino microcontroller. The chip's high accuracy timekeeping, battery backup support, and various features make it suitable for a wide range of applications requiring precise timekeeping functionality.

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6. What is the process for return or replacement of BQ3285LFSS-A1?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the BQ3285LFSS-A1 we delivered, we will accept the replacement or return of the BQ3285LFSS-A1 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of BQ3285LFSS-A1.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations