DS1642-100+ Maxim Integrated Products, DS1642-100+ Datasheet - Page 11

• Manufacturer Part Number: DS1642-100+
• Description: IC RAM TIMEKEEP NV 100NS 24-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAMr

Specifications of DS1642-100+

• Memory Size: 16K (2K x 8)
• Time Format: HH:MM:SS (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
• Function: Clock/Calendar/NV Timekeeping RAM
• Rtc Memory Size: 2048 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• 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) Voltages are referenced to ground.
2) Typical values are at 25C and nominal supplies.
3) Outputs are open.
4) Data retention time is at 25C.
5) Each DS1642 has a built-in switch that disconnects the lithium source until V
6) Real-time clock modules can be successfully processed through conventional wave-soldering
user. The expected t
power is first applied by the user.
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
11 of 13
CC
starting from the time
CC
is first applied by the
DS1642