DS1248Y-70+ Maxim Integrated Products, DS1248Y-70+ Datasheet - Page 6

IC NVSRAM 1MBIT 70NS 32DIP

DS1248Y-70+

Manufacturer Part Number
DS1248Y-70+
Description
IC NVSRAM 1MBIT 70NS 32DIP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of DS1248Y-70+

Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
1M (128K x 8)
Speed
70ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
32-DIP Module (600 mil), 32-EDIP
Function
Clock/Calendar/NV Timekeeping RAM/Battery Backup
Time Format
HH:MM:SS:hh
Date Format
DW:DM:M:Y
Rtc Memory Size
131072 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
Phantom Clock or Parallel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DS1248/DS1248P 1024k NV SRAM with Phantom Clock
Figure 1. Phantom Clock Register Definition
NOTE: THE PATTERN RECOGNITION IN HEX IS C5, 3A, A3, 5C, C5, 3A, A3, 5C. THE ODDS OF THIS PATTERN
BEING ACCIDENTALLY DUPLICATED AND CAUSING INADVERTENT ENTRY TO THE PHANTOM CLOCK IS
LESS THAN 1 IN 10
. THIS PATTERN IS SENT TO THE PHANTOM CLOCK LSB TO MSB.
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