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DS1553WP-120+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
13 of 20
READ CYCLE, AC CHARACTERISTICS
(V
CC
= 5.0V ±10%, T
A
= Over the operating range.)
85ns ACCESS 100ns ACCESS
PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS
Read Cycle Time t
RC
85 100 ns
Address Access Time t
AA
85 100 ns
CE to DQ Low-Z
t
CEL
5 5 ns
CE Access Time
t
CEA
85 100 ns
CE Data Off Time
t
CEZ
30 35 ns
OE to DQ Low-Z
t
OEL
5 5 ns
OE Access Time
t
OEA
45 55 ns
OE Data Off Time
t
OEZ
30 35 ns
Output Hold from Address t
OH
5 5 ns
READ CYCLE, AC CHARACTERISTICS
(V
CC
= 3.3V ±10%, T
A
= Over the operating range.)
120ns
ACCESS
150ns
ACCESS PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS
Read Cycle Time t
RC
120 150 ns
Address Access Time t
AA
120 150 ns
CE to DQ Low-Z
t
CEL
5 5 ns
CE Access Time
t
CEA
120 150 ns
CE Data Off Time
t
CEZ
40 50 ns
OE to DQ Low-Z
t
OEL
5 5 ns
OE Access Time
t
OEA
100 130 ns
OE Data Off Time
t
OEZ
35 35 ns
Output Hold from Address t
OH
5 5 ns
DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
14 of 20
WRITE CYCLE, AC CHARACTERISTICS
(V
CC
= 5.0V ±10%, T
A
= Over the operating range.)
85ns ACCESS 100ns ACCESS
PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS
Write Cycle Time t
WC
85 100 ns
Address Access Time t
AS
0 0 ns
WE Pulse Width
t
WEW
65 70 ns
CE Pulse Width
t
CEW
70 75 ns
Data Setup Time t
DS
35 40 ns
Data Hold time t
DH
0 0 ns
Address Hold Time t
AH
5 5 ns
WE Data Off Time
t
WEZ
30 35 ns
Write Recovery Time t
WR
5 5 ns
WRITE CYCLE, AC CHARACTERISTICS
(V
CC
= 3.3V ±10%, T
A
= Over the operating range.)
120ns ACCESS 150ns ACCESS
PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS
Write Cycle Time t
WC
120 150 ns
Address Setup Time t
AS
0 0 ns
WE Pulse Width
t
WEW
100 130 ns
CE Pulse Width
t
CEW
110 140 ns
Data Setup Time t
DS
80 90 ns
Data Hold Time t
DH
0 0 ns
Address Hold Time t
AH
0 0 ns
WE Data Off Time
t
WEZ
40 50 ns
Write Recovery Time t
WR
10 10 ns
DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
15 of 20
Figure 6. Write Cycle Timing, Write-Enable Controlled
Figure 7. Write Cycle Timing, Chip-Enable Controlled
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

DS1553WP-120+

Mfr. #:
Buy DS1553WP-120+
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Description:
Real Time Clock 64kB NV RAM Timekeepe
Lifecycle:
New from this manufacturer.
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