DS1747 Datasheet, PDF (9/18 Pages) Dallas Semiconductor – Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
AC CHARACTERISTICS—READ CYCLE (3.3V)
(V_CC = 3.3V ±10%, T_A = Over the Operating Range.)
PARAMETER
SYMBOL MIN TYP
Read Cycle Time
t_RC
120
Address Access Time
t_AA
CE to DQ Low-Z
t_CEL
5
CE E Access Time
t_CEA
CE Data Off Time
t_CEZ
OE to DQ Low-Z
t_OEL
5
OE Access Time
t_OEA
OE Data Off Time
t_OEZ
Output Hold from Address
t_OH
5
MAX
120
120
40
100
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
READ CYCLE TIMING DIAGRAM
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