DS1642 Maxim, DS1642 Datasheet - Page 7

• Manufacturer Part Number: DS1642
• Description: The DS1642 is a 2k x 8 nonvolatile static RAM and a full-function real-time clock (RTC), both of which are accessible in a bytewide format
• Manufacturer: Maxim

AC CHARACTERISTICS—READ CYCLE
READ CYCLE TIMING DIAGRAM
Read Cycle Time
Address Access Time
Output Hold from Address
CE
CE
CE
OE
OE
OE
to DQ Low-Z
Access Time
Data Off Time
to DQ Low-Z
Access Time
Data Off Time
PARAMETER
SYMBOL
t
t
t
t
t
t
t
t
t
CEA
OEA
CEL
CEZ
OEL
OEZ
AA
OH
RC
85ns ACCESS
MIN
85
5
5
5
7 of 13
MAX
85
85
30
45
30
100ns ACCESS
MIN
100
5
5
5
MAX
100
100
35
55
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
DS1642