DS1338U-33+T&R by Analog Devices

I²C RTC with 56-Byte NV RAM

Status: Active
Series: DS1338C, DS1338U, DS1338Z
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The DS1338 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I²C interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1338 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply, maintaining time and date operation.

Prices starting from US$2.34


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$2.56
1,727
Buy Now
Logo for element14 element14 US$2.68
1,727
Buy Now
Logo for Micros Micros US$2.36
100
Buy Now
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Features

Completely Manages All Timekeeping Functions RTC Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 56-Byte, Battery-Backed, General- Purpose RAM with Unlimited Writes Programmable Square-Wave Output Signal
RTC Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100
56-Byte, Battery-Backed, General- Purpose RAM with Unlimited Writes
Programmable Square-Wave Output Signal
Surface-Mount Package with an Integrated Crystal (DS1338C) Saves Additional Space and Simplifies Design
Interfaces with Most Microcontrollers I2C Serial Interface
I2C Serial Interface
Low-Power Operation Extends Battery Backup Run Time Automatic Power-Fail Detect and Switch Circuitry
Automatic Power-Fail Detect and Switch Circuitry
-40°C to +85°C Industrial Temperature Range Supports Operation in a Wide Range of Applications
Underwriters Laboratories (UL®) Recognized

Specifications

Interface I2C
VSUPPLY (V) 1.71 to 5.5
Date/ Time Format (hh = sec/100) YY-MM-DD/ HH:MM:SS
Time Keeping Current (nA) (typ) 800
CL (pF) 12.5
Memory Type NV SRAM
Memory Size (Bytes) 56
Time of Day Alarms 0
Package/Pins SOIC (N)/8SOIC (W)/16UMAX/8
BudgetaryPrice (See Notes) 1.85


DS1338U-33+T&R Semiconductors - ICs by Analog Devices

RTC W/ NVRAM 448B HH:MM:SS USOP-8

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Date Format Day
Clock Format HH
Clock IC Type RTC
Supply Voltage Min 3V
Supply Voltage Max 5.5V
Clock IC Case Style µSOP
No. of Pins 8Pins
IC Interface Type I2C
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

Rtc W/ Nvram, 448B, Hh:Mm:Ss, Usop-8 | Newark Electronics
RTC W/ NVRAM, 448B, HH:MM:SS, USOP-8 | element14
RTC W/ NVRAM, 448B, HH: MM: SS, USOP-8 | Farnell
Clock/Calendar, I2C 400kHz, Vlow Detection, 56B RAM, 3.0÷5.5V, -40÷85°C | Micros

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1338U-33+T&R ?

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Is the DS1338U-33+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1338U-33+T&R have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Micros have stock available or on a lead time for DS1338U-33+T&R .

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