DS1746 Maxim, DS1746 Datasheet - Page 11

• Manufacturer Part Number: DS1746
• Description: The DS1746 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and 128k x 8 nonvolatile static RAM
• Manufacturer: Maxim

AC CHARACTERISTICS—WRITE CYCLE (5V)
(V
Write Cycle Time
Address Setup Time
Data Setup Time
Data Hold Time
Data Hold Time
Write Recovery Time
Write Recovery Time
AC CHARACTERISTICS—WRITE CYCLE (3.3V)
(V
Write Cycle Time
Address Setup Time
Data Setup Time
Data Hold Time
Data Hold Time
Write Recovery Time
Write Recovery Time
WE Pulse Width
CE Pulse Width
WE Data Off Time
WE Pulse Width
CE Pulse Width
CE and CE2 Pulse Width
WE Data Off Time
CC
CC
= 5.0V ±10%, T
= 3.3V ±10%, T
PARAMETER
PARAMETER
A
A
= Over the Operating Range.)
= Over the Operating Range.)
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
WEW
WEW
CEW
CEW
CEW
t
t
WEZ
WR1
WR2
t
t
WEZ
WR1
WR2
DH1
DH2
DH1
DH2
WC
WC
AS
DS
AS
DS
MIN
MIN
120
100
110
110
11 of 16
70
50
60
30
80
10
0
0
0
5
5
0
0
0
5
TYP
TYP
MAX
MAX
120
25
40
UNITS
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
NOTES
8
9
8
9
8
9
8
9