DS1746_10 Datasheet, PDF (10/16 Pages) Maxim Integrated Products – Y2K-Compliant, Nonvolatile Timekeeping RAMs

DS1746/DS1746P 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
CE to DQ Low-Z
CE Access Time
CE Data Off Time
OE to DQ Low-Z
OE Access Time
OE Data Off Time
t_AA
t_CEL
5
t_CEA
t_CEZ
t_OEL
5
t_OEA
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
t_RC
A0-A16
CE
OE
DQ0-DQ7
VALID
t_AA
t_CEA
t_CEL
t_OEA
t_OEL
t_OH
t_CEZ
t_OEZ
VALID
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