DS1554-70+ Maxim Integrated Products, DS1554-70+ Datasheet - Page 18

• Manufacturer Part Number: DS1554-70+
• Description: IC RTC RAM Y2K 5V 70NS 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1554-70+

• Memory Size: 256K (32K 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: 32-DIP Module (600 mil), 32-EDIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REVISION HISTORY
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.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r i v e , S u n n y v a l e , C A 9 4 0 8 6 4 0 8 - 7 3 7 - 7 6 0 0
 2010 Maxim Integrated Products
REVISION
DATE
9/10
Updated the Ordering Information table to include only lead-free parts and changed the pin-
package for EMOD to EDIP; updated the Absolute Maximum Ratings section to include the
storage temperature range and lead and soldering temperatures for EDIP and PowerCap
packages; added Note 11 to the I
(for 5.0V and 3.3V) and the Notes section; replaced the package outline drawings with the
Package Information table
CC
Maxim and the Dallas logo are registered trademarks of Maxim Integrated Products.
parameter in the DC Electrical Characteristics tables
DESCRIPTION
DS1554 256k, Nonvolatile, Y2K-Compliant Timekeeping RAM
18 of 18
CHANGED
2, 11, 12, 17
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