DS1553 Datasheet, PDF (13/20 Pages) Maxim Integrated Products – 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM

DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
READ CYCLE, AC CHARACTERISTICS
(V_CC = 5.0V ±10%, T_A = Over the operating range.)
PARAMETER
85ns ACCESS
SYMBOL
MIN MAX
Read Cycle Time
t_RC
85
Address Access Time
t_AA
85
CE to DQ Low-Z
t_CEL
5
CE Access Time
t_CEA
85
CE Data Off Time
t_CEZ
30
OE to DQ Low-Z
t_OEL
5
OE Access Time
t_OEA
45
OE Data Off Time
t_OEZ
30
Output Hold from Address
t_OH
5
100ns ACCESS
MIN MAX
100
100
5
100
35
5
55
35
5
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
READ CYCLE, AC CHARACTERISTICS
(V_CC = 3.3V ±10%, T_A = Over the operating range.)
120ns
PARAMETER
SYMBOL ACCESS
MIN MAX
Read Cycle Time
t_RC
120
Address Access Time
t_AA
120
CE to DQ Low-Z
t_CEL
5
CE Access Time
t_CEA
120
CE Data Off Time
t_CEZ
40
OE to DQ Low-Z
t_OEL
5
OE Access Time
t_OEA
100
OE Data Off Time
t_OEZ
35
Output Hold from Address
t_OH
5
150ns
ACCESS
MIN MAX
150
150
5
150
50
5
130
35
5
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
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