DS1746W-120+ Maxim Integrated Products, DS1746W-120+ Datasheet - Page 12

• Manufacturer Part Number: DS1746W-120+
• Description: IC RTC RAM Y2K 3.3V 120NS 32EDIP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAM/Y2Kr

Specifications of DS1746W-120+

• Memory Size: 1M (128K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 32-DIP Module (600 mil), 32-EDIP
• Function: Clock/Calendar/NV Timekeeping RAM
• Rtc Memory Size: 131072 Byte
• Supply Voltage (max): 3.63 V
• Supply Voltage (min): 2.97 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Supply Current: 85 mA
• Lead Free Status / RoHS Status: Lead free / RoHS 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