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DS1388Z-33+ The DS1388Z-33+ is an I2C Real Time Clock (RTC) and supervisor IC from Analog Devices / Maxim Integrated. It features 512 bytes of EEPROM and a watchdog timer.
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DS1388Z-33+

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1388Z-33+ is an I2C Real Time Clock (RTC) and supervisor IC from Analog Devices / Maxim Integrated. It features 512 bytes of EEPROM and a watchdog timer.
✓ Total Stock: 4,000 pcs

DS1388Z-33+ Available from 1 distributor

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✓ Non-Authorised
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Components Technology Group, Inc. ✓
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4,000 pcs
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4000 pcs On Request 1 On Request On Request On Request On Request On Request
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DS1388Z-33+ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
EEPROM Size
Features
Interface
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Supplier Package
Time Format
Type
Voltage
Voltage Supply
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DS1388Z-33+ Description

Short technical summary and product information.

The DS1388Z-33+ is a multifunction I2C Real Time Clock (RTC) and supervisor IC manufactured by Analog Devices / Maxim Integrated. This device integrates a clock/calendar, a programmable watchdog timer, a power-supply monitor with reset capabilities, and 512 bytes of EEPROM.

 

The clock function provides counts for hundredths of seconds, seconds, minutes, and hours, supporting both 24-hour and 12-hour formats with an AM/PM indicator. The calendar function includes day, date, month, and year information, with automatic adjustments for month lengths and leap years valid up to 2100. The integrated watchdog timer can reset an unresponsive microprocessor and is programmable in 10ms intervals.

 

It features automatic power-fail detect and switch circuitry, a reset output with pushbutton reset input capability, and integrated trickle-charge capability for a backup supply. The device operates across a wide temperature range of -40°C to +85°C and is available in an 8-SOIC package suitable for surface mounting.

 

Key features include a fast 400kHz I2C interface, leap year compensation, and a low timekeeping voltage down to 1.3V. This makes the DS1388Z-33+ suitable for applications such as portable instruments, point-of-sale equipment, network interface cards, and wireless equipment.

DS1388Z-33+ Quick Information

Product Type: Real Time Clock IC
Canonical Name: DS1388 I2C RTC/Supervisor with Trickle Charger and 512 Bytes EEPROM
Subcategory: RTC/Supervisor

DS1388Z-33+ Compliance

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

DS1388Z-33+ Features

  • Fast 400kHz I2C interface.
  • Integrated 512-byte EEPROM.
  • Programmable watchdog timer.
  • Automatic power-fail detect.
  • Operates -40°C to 85°C.

DS1388Z-33+ Applications

  • Ideal for portable instruments.
  • Suitable for point-of-sale equipment.
  • Used in network interface cards.
  • Applicable to wireless equipment.

DS1388Z-33+ FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1388Z-33+?

The operating voltage range is 1.3V to 5.5V.

What package type is the DS1388Z-33+ available in?

The DS1388Z-33+ is available in an 8-SOIC package.

What is the operating temperature range for this RTC IC?

The operating temperature range is -40°C to 85°C.

Does the DS1388Z-33+ have an integrated EEPROM?

Yes, it has 512 bytes of integrated EEPROM.

What interface does the DS1388Z-33+ use?

The DS1388Z-33+ uses an I2C interface.

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