DS1746-70 Maxim Integrated Products, DS1746-70 Datasheet - Page 12

• 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

WRITE CYCLE TIMING DIAGRAM, WRITE-ENABLE CONTROLLED
WRITE CYCLE TIMING DIAGRAM, CHIP-ENABLE CONTROLLED
DQ0-DQ7
DQ0-DQ7
A0-A16
A0-A16
WE
WE
CE
CE
DATA OUTPUT
t
AS
t
AS
t
WEZ
VALID
t
W C
VALID
t
WC
t
WEW
t
CEW
DATA INPUT
t
DS
DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
DATA INPUT
t
DS
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t
t
WR1
DH1
t
t
WR2
DH2