DS1388Z-3+T&R Maxim Integrated Products, DS1388Z-3+T&R Datasheet - Page 19

• Manufacturer Part Number: DS1388Z-3+T&R
• Description: IC RTC I2C W/CHARGER 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Supervisor/EEPROMr

Specifications of DS1388Z-3+T&R

• Memory Size: 4K (512 x 8)
• Time Format: HH:MM:SS:hh (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 19
© 2010 Maxim Integrated Products
REVISION
NUMBER
0
1
2
3
is a registered trademark of Maxim Integrated Products, Inc.
REVISION
DATE
10/09
4/05
9/08
8/10
I
2
C RTC/Supervisor with Trickle Charger
Initial release.
Removed the leaded parts from the Ordering Information.
Indicated the pullup voltage for SDA and SCL in the Pin Description table.
Added the oscillator bias circuit to the Block Diagram and removed the original Figure
Added time and date POR values in the Power Control section.
Changed the last sentence of the Watchdog Alarm Counter section (first paragraph) to
“When the counter is read, the current counter value is latched into a register, which is
output on the serial data line and the watchdog counter reloads the seed value.”
Added “Access is inhibited whenever RST is low.” To the end of the Power-Up/Down,
Reset, and Pushbutton Reset Functions section (first paragraph).
In the Control Register (00Ch) section, bit 7 description, added a statement that EOSC is
used to reduce V
Replaced the I
Corrected the RTC power-on default values in the Power Control section.
Corrected the date register range in Figure 4.
Added WF flag clear to the Watchdog Alarm Counter section.
In the Absolute Maximum Ratings section, added the thermal information, lead
information, and new Note 1, and updated the soldering information.
In the Pin Description, corrected X2 pin name and bias limit on SDA, SCL.
Added the package code and land pattern no. to the Package Information table.
2
C read and write figures.
BAT
current when timekeeping is not required.
DESCRIPTION
Maxim is a registered trademark of Maxim Integrated Products, Inc.
and 512 Bytes EEPROM
Revision History
CHANGED
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