BQ4847MT The BQ4847MT is a Clock/Calendar Real-Time Clock module from Texas Instruments with a parallel interface, operating from 2.3V to 4V. It features alarm, daylight savings, leap year, supervisor, and watchdog timer functions.
Mfr Part #:

BQ4847MT

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The BQ4847MT is a Clock/Calendar Real-Time Clock module from Texas Instruments with a parallel interface, operating from 2.3V to 4V. It features alarm, daylight savings, leap year, supervisor, and watchdog timer functions.
✓ Total Stock: 2,420 pcs

BQ4847MT Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,420 pcs
2420 pcs On Request 1 On Request On Request 11+ On Request On Request

BQ4847MT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Date Format
Features
Industrial Grade
Interface
Lead Style
Medical Grade
Military Grade
Mounting Type
Operating Temperature
SVHC Present
Supplier Device Package
Time Format
Type
Voltage

BQ4847MT Description

Short technical summary and product information.

The BQ4847MT is a low-power real-time clock module that integrates a time-of-day clock, 100-year calendar, CPU supervisor, battery, and crystal in a 28-pin DIP module. It operates from a supply voltage of 2.3V to 4V and supports both 12-hour and 24-hour time formats with a date format of YY-MM-DD-dd.

 

Key features include an alarm function, daylight savings adjustment, leap year compensation, a supervisor circuit, and a programmable watchdog timer. The module provides a clock accuracy of ±1 minute per month and draws less than 500 nA in battery-backup mode. An integrated 130 mAh battery ensures timekeeping during power loss.

 

The device is housed in a 28-DIP module (0.61", 15.49mm) with through-hole mounting. It operates over a temperature range of 0°C to 70°C. The parallel interface allows straightforward connection to microprocessors.

BQ4847MT Quick Information

Product Type: Real Time Clock (RTC)
Canonical Name: BQ4847MT Real-Time Clock Module
Subcategory: Clock/Calendar

BQ4847MT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

BQ4847MT Features

  • Integrated 130 mAh backup battery.
  • Clock accuracy of ±1 minute per month.
  • Parallel interface for easy integration.
  • Watchdog timer with programmable timeout.
  • Operating temperature range 0°C to 70°C.

BQ4847MT Applications

  • Ideal for industrial control systems.
  • Used in point-of-sale terminals.
  • Suitable for data loggers and computers.
  • Perfect for fax machines and copiers.

BQ4847MT FAQs

7 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the BQ4847MT?

The supply voltage range is 2.3V to 4V.

What package does the BQ4847MT come in?

It comes in a 28-DIP Module (0.61", 15.49mm) with through-hole mounting.

What is the operating temperature range?

The operating temperature range is 0°C to 70°C.

Is the BQ4847MT RoHS compliant?

RoHS status is listed as RoHS3 Compliant, but this is unverified and low confidence.

What features does the BQ4847MT include?

It includes alarm, daylight savings, leap year, supervisor, and watchdog timer features.

What is the clock accuracy of the BQ4847MT?

The clock accuracy is ±1 minute per month.

What is the backup current in battery-backup mode?

The maximum backup current is 500 nA.

Home

Categories