DS3234S- MAXIM [Maxim Integrated Products], DS3234S- Datasheet - Page 21

• Manufacturer Part Number: DS3234S-
• Description: Extremely Accurate SPI Bus RTC with Integrated Crystal and SRAM
• Manufacturer: MAXIM [Maxim Integrated Products]

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 ____________________ 21
© 2008 Maxim Integrated Products
Marichu Quijano
REVISION
NUMBER
0
1
2
is a registered trademark of Dallas Semiconductor Corporation.
REVISION
DATE
10/08
2/06
7/07
Extremely Accurate SPI Bus RTC with
Initial release.
Clarified the behavior of t
Pin Description.
Corrected the POR for the BB32kHz bit from 0 to 1.
Updated the Typical Operating Circuit.
Removed the V
table and added verbiage about the pullup to the Pin Description table for
In the Electrical Characteristics table, added CRATE1 = CRATE0 = 0 to the
I
Temperature Conversion Current, and Data-Retention Current from I
I
In the AC Electrical Characteristics, changed the t
(max) to 400ns (min).
Added the Delta Time and Frequency vs. Temperature graph in the Typical
Operating Characteristics section.
Updated the Block Diagram.
Added the V
Pushbutton Reset Function, Aging Offset Register (10h/90h), and Temperature
Registers (11h–12h) sections.
Corrected the description of when the countdown chain is reset in the Clock
and Calendar section.
BATT
BATTC
/SQW.
parameter and changed the symbols for Timekeeping Battery Current,
to I
BATT
BAT
, I
PU
BATTC
Operation section, improved some sections of text for the
parameter from the Recommended DC Operating Conditions
, and I
Integrated Crystal and SRAM
REC
BATTDR
on initial power-up in the
DESCRIPTION
, respectively.
is a registered trademark of Maxim Integrated Products, Inc.
CWH
specification from 400ns
description of the
BAT
, I
TC
Revision History
, and
CHANGED
PAGES
10, 16
2, 8
15
11
—
8
1
3
4
7
9