DS1642 Datasheet, PDF (6/11 Pages) Dallas Semiconductor – Nonvolatile Timekeeping RAM

DS1642
READ CYCLE, AC CHARACTERISTICS
(0°C to 70°C; VCC = 5.0V ± 10%)
PARAMETER
SYMBOL
70 ns access 100 ns access
MIN MAX MIN MAX
UNITS
NOTES
Read Cycle Time
Address Access Time
t_RC
70
100
ns
t_AA
70
100
ns
CE to DQ Low-Z
t_CEL
5
5
ns
CE Access Time
t_CEA
70
100
ns
CE Data Off Time
t_CEZ
25
35
ns
OE to DQ Low-Z
t_OEL
5
5
ns
OE Access Time
t_OEA
35
55
ns
OE Data Off Time
t_OEZ
25
35
ns
Output Hold from Address
t_OH
5
5
ns
READ CYCLE TIMING DIAGRAM
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