DS1687-5+ Maxim Integrated Products, DS1687-5+ Datasheet - Page 32
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DS1687-5+
Manufacturer Part Number
DS1687-5+
Description
IC RTC 5V 64-BIT Y2K 24-EDIP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAM/Y2Kr
Datasheet
1.DS1685S-5.pdf
(34 pages)
Specifications of DS1687-5+
Memory Size
242B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
24-DIP (600 mil) Module
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
WAKE-UP/KICKSTART TIMING
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10: t
Note 11: RTC Encapsulate DIP modules can be successfully processed through conventional wave-soldering techniques as
Note 12: I
All voltages are referenced to ground.
Typical values are at +25°C and nominal supplies.
Outputs are open.
Applies to the AD0–AD7 pins and the SQW pin when each is in a high-impedance state.
The IRQ and PWR pins are open-drain outputs.
Measured with a load of 50pF + 1 TTL gate.
Wake-up kickstart timeout generated only when the oscillator is enabled and the countdown chain is not reset.
V
The DS1687 keeps time to an accuracy of ±1 minute per month at 25°C during data retention time for the period of t
at 25°C.
long as temperature exposure to the lithium energy source contained within does not exceed +85°C. Post solder
cleaning with water washing techniques is acceptable, if ultrasonic vibration is not used.
DR
BAT1
SW
is the amount of time that the internal battery can power the internal oscillator and internal registers of the DS1687
is determined by the larger of V
and I
BAT2
*THIS CONDITION CAN OCCUR WITH THE 3V DEVICE.
NOTE: TIME INTERVALS SHOWN ABOVE ARE REFERENCED IN WAKE-UP/KICKSTART SECTION.
are measured at V
BAT
BAT
or V
and V
BAUX
BAUX
= 3.5V and with recommended crystal type on X1 and X2.
32 of 34
.
DS1685/DS1687 3V/5V Real-Time Clocks
DR
.