DS1747-70+ Maxim Integrated Products, DS1747-70+ Datasheet - Page 10

• Manufacturer Part Number: DS1747-70+
• Description: IC RTC RAM Y2K 5V 70NS 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1747-70+

• Memory Size: 4M (512K 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

AC CHARACTERISTICS—READ CYCLE (3.3V)
(V
Read Cycle Time
Address Access Time
Output Hold from Address
READ CYCLE TIMING DIAGRAM
CE to DQ Low-Z
CE E Access Time
CE Data Off Time
OE to DQ Low-Z
OE Access Time
OE Data Off Time
CC
= 3.3V 10%, T
PARAMETER
A
= Over the Operating Range.)
SYMBOL
t
t
t
t
t
t
t
t
t
CEA
OEL
OEA
OEZ
CEL
CEZ
AA
OH
RC
DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
MIN
10 of 16
120
5
5
5
TYP
MAX
120
120
100
40
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES