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See Technical Specifications

DS1338C-33#

Real Time Clock (RTC) IC Clock/Calendar 56B I2C, 2-Wire Serial 16-SOIC (0.295", 7.50mm Width)

Manufacturer:

Maxim Integrated
Mfr.Part #:

DS1338C-33#
Datasheet:

DS1338C-33# Datasheet (PDF)
packingQty:

Tube,46
packingOption:

Tube
tempRange:

-40 to 85C
EDA/CAD Models:

Request Free CAD Models for DS1338C-33#

Email: [email protected]

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DS1338C-33# General Description

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.

Key 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
Surface-Mount Package with an Integrated Crystal (DS1338C) Saves Additional Space and Simplifies Design
Interfaces with Most Microcontrollers
- I²C Serial Interface
Low-Power Operation Extends Battery Backup Run Time
- 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