DS1746-70 Maxim Integrated Products, DS1746-70 Datasheet - Page 10

• Manufacturer Part Number: DS1746-70
• Description: IC RTC RAM Y2K 5V 70NS 32-EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1746-70

• Memory Size: 1M (128K 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: Contains lead / RoHS non-compliant

AC CHARACTERISTICS—READ CYCLE (3.3V)
(V
Read Cycle Time
Address Access Time
CE to DQ Low-Z
CE Access Time
CE Data Off Time
OE to DQ Low-Z
OE Access Time
OE Data Off Time
Output Hold from Address
READ CYCLE TIMING DIAGRAM
CC
DQ0-DQ7
A0-A16
= 3.3V 10%, T
CE
OE
PARAMETER
A
= Over the Operating Range.)
t
AA
t
CEL
t
CEA
t
OEL
t
VALID
OEA
t
RC
SYMBOL
t
t
t
t
t
t
t
t
t
CEA
OEA
CEL
CEZ
OEL
OEZ
AA
OH
RC
DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
VALID
10 of 16
t
CEZ
MIN
120
5
5
5
t
OEZ
t
OH
TYP
MAX
120
120
100
40
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES