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DS1338Z-33+T&R The Analog Devices DS1338Z-33+T&R is a serial real-time clock (RTC) with 56 bytes of NV SRAM. It features an I2C interface and operates over an industrial temperature range.
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DS1338Z-33+T&R

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The Analog Devices DS1338Z-33+T&R is a serial real-time clock (RTC) with 56 bytes of NV SRAM. It features an I2C interface and operates over an industrial temperature range.
✓ Total Stock: 3,900 pcs

DS1338Z-33+T&R Available from 2 distributors

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✓ Non-Authorised
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Xingangxin ✓
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2,900 pcs
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2900 pcs On Request 1 On Request On Request On Request On Request On Request
Fe Components ✓
Non-Authorised Inventory information
1,000 pcs
On Request
1000 pcs On Request 1 On Request On Request On Request On Request On Request
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DS1338Z-33+T&R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Applications
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Features
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Memory Size
Mounting Type
Operating Temperature
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DS1338Z-33+T&R Description

Short technical summary and product information.

The DS1338Z-33+T&R from Analog Devices is a low-power serial real-time clock (RTC) IC. It integrates a full binary-coded decimal (BCD) clock/calendar with 56 bytes of battery-backed NV SRAM. Timekeeping functions include seconds, minutes, hours, day, date, month, and year, with automatic leap-year compensation valid up to 2100. The clock supports both 24-hour and 12-hour formats with an AM/PM indicator.

 

This device utilizes an I2C serial interface for communication with microcontrollers. It includes a built-in power-sense circuit that detects power failures and automatically switches to a backup supply, ensuring continuous time and date operation. The operating voltage range is from 1.3V to 3.7V, with a typical current consumption of 125µA to 200µA at 3.63V to 5.5V.

 

The DS1338Z-33+T&R is housed in a compact 8-SOIC surface-mount package, measuring 0.154 inches with a 3.90mm width. It is designed for operation in demanding environments, with an industrial temperature range of -40°C to 85°C. Key features include leap year support, NV SRAM, and a programmable square-wave output signal. Applications span handheld devices, consumer electronics, office equipment, medical devices, and telecommunications infrastructure.

DS1338Z-33+T&R Quick Information

Product Type: Real Time Clock
Canonical Name: DS1338Z-33+T&R Real Time Clock IC
Subcategory: Clock/Calendar

DS1338Z-33+T&R Compliance

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

DS1338Z-33+T&R Features

  • Serial real-time clock with 56 bytes NV SRAM.
  • I2C interface for microcontroller communication.
  • Automatic power-fail detect and switch circuitry.
  • Operates from 1.3V to 3.7V supply voltage.
  • Industrial temperature range of -40°C to 85°C.

DS1338Z-33+T&R Applications

  • Suitable for handheld GPS and POS terminals.
  • Used in consumer electronics like set-top boxes.
  • Applicable for office equipment such as printers.
  • Designed for medical devices like glucometers.
  • Deployed in telecommunications routers and servers.

DS1338Z-33+T&R FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1338Z-33+T&R?

The operating voltage range is 1.3V to 3.7V.

What is the operating temperature range for this Real Time Clock IC?

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

What package type is the DS1338Z-33+T&R available in?

It is available in an 8-SOIC (0.154", 3.90mm Width) surface mount package.

What is the RoHS status of the DS1338Z-33+T&R?

The RoHS status is RoHS3 Compliant.

What is the memory size of the NV SRAM in the DS1338Z-33+T&R?

The NV SRAM has a memory size of 56 Bytes.

What interface does the DS1338Z-33+T&R use?

It uses an I2C, 2-Wire Serial interface.

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