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MAX6900 Datasheet I2c-compatible Rtc

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: 19-1942; Rev 3; 6/03 I2C-patible RTC in a TDFN General.

General Description

The MAX6900, I2C™-bus-patible real-time clock (RTC) in a 6-pin TDFN package contains a real-time clock/calendar and 31-byte ✕ 8-bit wide of static random access memory (SRAM).

The real-time 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 up to the year 2100.

Key Features

  • o Real-Time Clock Counts Seconds, Minutes, Hours, Date, Month, Day, and Year o Leap Year Compensation Valid up to Year 2100 o Fast (400kHz) I2C-Bus-Compatible Interface from 2.0V to 5.5V o 31 ✕ 8 SRAM for Scratchpad Data Storage o Uses Standard 32.768kHz, 12.5pF Load, Watch Crystal o Ultra-Low 225nA (typ) Timekeeping Current o Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock Registers or SRAM o 6-Pin 3mm x 3mm x 0.8mm TDFN Surface-Mount Package o No External Cry.

MAX6900 Distributor