DS1642-85 MAXIM [Maxim Integrated Products], DS1642-85 Datasheet - Page 8
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DS1642-85
Manufacturer Part Number
DS1642-85
Description
Nonvolatile Timekeeping RAM
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
1.DS1642-85.pdf
(13 pages)
AC CHARACTERISTICS—WRITE CYCLE
(V
Write Cycle Time
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Write Recovery Time
CE
WE
WE
CC
Pulse Width
= 5.0V ±10, T
Pulse Width
Data Off Time
PARAMETER
A
= 0°C to +70°C.)
SYMBOL
t
t
t
t
WEW
t
t
CEW
t
WEZ
t
t
WC
WR
DH
AH
AS
DS
85ns ACCESS
MIN
85
65
70
35
0
0
5
5
8 of 13
MAX
30
100ns ACCESS
MIN
100
70
75
40
0
0
5
5
MAX
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
DS1642