DS1742W-150 Maxim Integrated Products, DS1742W-150 Datasheet - Page 14

• Manufacturer Part Number: DS1742W-150
• Description: Real Time Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS1742W-150

• Function: Clock, Calendar, NV Timekeeping RAM
• Rtc Memory Size: 2048 B
• Supply Voltage (max): 3.63 V
• Supply Voltage (min): 2.97 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Package / Case: eDIP
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC TEST CONDITIONS
Output Load: 100pF + 1TTL Gate
Input Pulse Levels: 0.0 to 3.0V
Timing Measurement Reference Levels:
Input Pulse Rise and Fall Times: 5ns
NOTES:
1) Voltage referenced to ground.
2) Typical values are at 25°C and nominal supplies.
3) Outputs are open.
4) Battery switchover occurs at the lower of either the battery voltage or V
5) Data retention time is at 25°C.
6) Each DS1742 has a built-in switch that disconnects the lithium source until V
7) Real-time clock modules can be successfully processed through conventional wave-
applied by the user. The expected t
starting from the time power is first applied by the user.
soldering techniques as 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, provided that ultrasonic vibration is not used to prevent damage to
the crystal.
Input: 1.5V
Output: 1.5V
DR
is defined as a cumulative time in the absence of V
14 of 16
PF
.
CC
is first
DS1742
CC