DS1742 Maxim, DS1742 Datasheet - Page 10

• Manufacturer Part Number: DS1742
• Description: The DS1742 is a full-function, year 2000-compliant (Y2KC), real-time clock/calendar (RTC) and 2k x 8 nonvolatile static RAM
• Manufacturer: Maxim

AC CHARACTERISTICS—WRITE CYCLE (5V)
(V
AC CHARACTERISTICS—WRITE CYCLE (3.3V)
(V
Write Cycle Time
Address Access Time
Data Setup Time
Data Hold time
Address Hold Time
Write Recovery Time
Write Cycle Time
Address Setup Time
Data Setup Time
Data Hold Time
Address Hold Time
Write Recovery Time
WE
CE
WE
WE
CE
WE
CC
CC
= 5.0V 10%, Over the operating range.)
= 3.3V 10%, Over the operating range.)
PARAMETER
Pulse Width
Pulse Width
Pulse Width
Data Off Time
Pulse Width
Data Off Time
PARAMETER
SYMBOL
t
t
t
WEW
t
t
CEW
t
t
t
t
WEZ
WC
WR
DS
DH
AH
AS
SYMBOL
t
t
t
t
WEW
t
CEW
t
t
t
WEZ
t
WC
WR
DS
DH
AH
AS
85ns ACCESS
MIN
85
65
70
35
0
0
5
5
MIN
120
100
110
80
10
10 of 16
0
0
0
ACCESS
120ns
MAX
30
MAX
40
MIN
100
70
75
40
0
0
5
5
ACCESS
100ns
MIN
150
130
140
90
10
0
0
0
ACCESS
150ns
MAX
35
MAX
50
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS1742