DS1340Z-18 Maxim Integrated Products, DS1340Z-18 Datasheet - Page 15

• Manufacturer Part Number: DS1340Z-18
• Description: IC RTC I2C W/CHARGER 1.8V 8-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Trickle-Chargerr

Specifications of DS1340Z-18

• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 1.71 V ~ 1.89 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -

REVISION
NUMBER
0
1
2
3
4
5
REVISION
DATE
12/04
11/05
6/03
7/04
3/06
8/08
Initial release.
Changed “2-wire” to “I
Added UL recognition info bullet to the Features section and to the V
description.
Added the “I/O Capacitance (SCL, SDA)” parameter (C
Characteristics table.
Added “SDA, SCL” and “V
parameter and changed the symbol from “V
DC Operating Conditions table; in the DC Electrical Characteristics table,
changed the “Oscillator Current” parameter to “V
Added the integrated-crystal and lead-free packages to the Ordering Information
table; added the integrated-crystal packages to the Features, Pin
Configurations, Pin Description.
In Table 1, added increased crystal ESR with increased supply minimum
voltage requirement.
Added the DS1340C Only section.
Updated Figure 5 to also show the “C Version” crystal.
Added the Handling, PC Board Layout, and Assembly section.
Added the integrated-crystal package Theta-JA and Theta-JC information to the
Thermal Information section.
Updated the Ordering Information table to correct lead-free/RoHS packages.
In the General Description section, indicated that the time and date function
continues while powered by V
Updated the Typical Operating Circuit by removing pin numbers and adding a
bypass capacitor.
In the Pin Description, updated the V
diodes should be placed between the battery and pin and added the UL link;
changed the V
Added the Power Control section and new Table 1.
In the Handling, PC Board Layout, and Assembly section, added solder reflow
information for the RoHS SO package.
Added Package Information table.
Removed leaded part numbers from the Ordering Information table.
Removed the t
with t
In the Typical Operating Characteristics section, updated/changed the “FT vs.
V
In the Pin Description, added pullup voltage information to the SDA, SCL, and
FT/OUT descriptions.
BACKUP
REC
” graph to “OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE (FT x 64).”
.
CC
RPU
____________________________________________________________________
description.
parameter and RST waveform from Figure 2. Replaced t
2
C” throughout the data sheet.
I
CC
2
= 0V” to the “Supply Voltage, Pullup (FT/OUT)”
C RTC with Trickle Charger
BACKUP
DESCRIPTION
BACKUP
.
IH
description to indicate that no
” to “V
BACKUP
PU
I/O
” in the Recommended
Current.”
) to the AC Electrical
BACKUP
Revision History
RST
pin
CHANGED
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1, 6
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