DS1743 Datasheet, PDF (10/16 Pages) Dallas Semiconductor – Y2KC Nonvolatile Timekeeping RAM

DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
AC CHARACTERISTICS—READ CYCLE (3.3V)
(V_CC = 3.3V ±10%, T_A = Over the Operating Range.)
ACCESS
PARAMETER
SYMBOL
120ns
150ns
MIN MAX MIN MAX
Read Cycle Time
t_RC
120
150
Address Access Time
CE and CE2 Low to DQ Low-Z
CE and CE2 Access Time
CE and CE2 Data-Off time
OE Low to DQ Low-Z
OE Access Time
OE Data-Off Time
t_AA
120
150
t_CEL
5
5
t_CEA
120
150
t_CEZ
40
50
t_OEL
5
5
t_OEA
100
130
t_OEZ
35
35
Output Hold from Address
t_OH
5
5
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
5
5
5
READ CYCLE TIMING DIAGRAM
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