DS1642 Datasheet, PDF (7/13 Pages) Dallas Semiconductor – Nonvolatile Timekeeping RAM

DS1642
AC CHARACTERISTICS—READ CYCLE
PARAMETER
SYMBOL
85ns ACCESS
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
NOTES
READ CYCLE TIMING DIAGRAM
7 of 13