Datasheet

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