DS1338_11 Datasheet, PDF (16/16 Pages) Maxim Integrated Products – I2C RTC with 56-Byte NV RAM

DS1338 I²C RTC with 56-Byte NV RAM
REVISION HISTORY
REVISION
DATE
DESCRIPTION
Modified the Features bullet to indicate that battery-backed RAM has unlimited
writes.
Removed leaded part numbers from the Ordering Information table.
100108
9/11
Removed the pullup resistor voltage spec from the Recommended DC
Operating Conditions table and added it to the pin descriptions.
Updated the block diagram (Figure 3) to show that SQW is open drain.
Added the initial POR state for time and date registers in the Power Control
section.
Added text to explain the use of the oscillator bit to control battery current in the
Clock and Calendar section.
Updated the Absolute Maximum Ratings, Recommended DC Operating
Conditions, DC Electrical Characteristics, Power Control, Oscillator Circuit,
Table 3, Handling, PBB Layout, and Assembly, Thermal Information, and
Package Information
PAGES
CHANGED
1
1
2, 7
5
8
9
2, 8, 10, 15
16 of 16
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