DS1318 Maxim, DS1318 Datasheet - Page 4

• Manufacturer Part Number: DS1318
• Description: The DS1318 parallel-interface elapsed time counter (ETC) is a 44-bit counter that maintains the amount of time that the device operates from main and/or backup power or during an external event
• Manufacturer: Maxim

Parallel-Interface Elapsed Time Counter
4
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DQ0–DQ7
DQ0–DQ7
A0–A4
A0–A4
DQ0–DQ7
WE
WE
CE
CE
A0–A4
CE
OE
DATA OUTPUT
t
AS
t
t
t
AS
AS
AS
Write Cycle Timing, Write-Enable Controlled
Write Cycle Timing, Chip-Enable Controlled
t
WEZ
t
AA
t
CEL
t
CEA
VALID
VALID
t
OEL
t
OEA
t
t
t
WEW
t
CEW
WC
WC
t
RC
DATA INPUT
t
t
DS
DS
DATA INPUT
t
t
DH
AH
VALID
t
WR
t
t
t
AH
WR
DH
t
OEZ
t
CEZ
VALID
VALID
DATA INPUT
DATA INPUT
t
OH
Read Cycle Timing