DS1643-100 Просмотр технического описания (PDF) - Dallas Semiconductor -> Maxim Integrated
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DS1643-100 Datasheet PDF : 14 Pages
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DS1643/DS1643P
READ CYCLE, AC CHARACTERISTICS
(0°C to 70°C; VCC = 5.0V ±=10%)
70 ns access 100 ns access
PARAMETER
SYMBOL MIN MAX MIN MAX UNITS NOTES
Read Cycle Time
Address Access Time
CE and CE2 to DQ Low-Z
tRC
70
100
ns
4
tAA
70
100
ns
4
tCEL
5
5
ns
4
CE Access Time
tCEA
70
100
ns
4
CE2 Access Time
CE and CE2 Data Off Time
tCE2A
tCEZ
80
105
ns
4
25
35
ns
4
OE to DQ Low-Z
tOEL
5
5
ns
4
OE Access Time
tOEA
35
55
ns
4
OE Data Off Time
tOEZ
25
35
ns
4
Output Hold from Address
tOH
5
5
ns
4
READ CYCLE TIMING DIAGRAM
WRITE CYCLE, AC CHARACTERISTICS
(0°C to 70°C; VCC = 5.0V ±=10%)
70 ns access 100 ns access
PARAMETER
SYMBOL MIN MAX MIN MAX UNITS NOTES
Write Cycle Time
tWC
70
100
ns
4
Address Setup Time
tAS
0
0
ns
4
WE Pulse Width
tWEW
50
70
ns
4
CE Pulse Width
tCEW
60
75
ns
4
CE2 Pulse Width
tCE2W
65
85
ns
4
Data Setup Time
tDS
30
40
ns
4
Data Hold Time
tDH
0
0
ns
4
Address Hold Time
tAH
5
5
ns
4
WE Data Off Time
tWEZ
25
35
ns
4
Write Recovery Time
tWR
5
5
ns
4
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