FM1608-120-PG 查看數據表（PDF） - Ramtron International Corporation
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FM1608-120-PG Datasheet PDF : 11 Pages
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FM1608
Read Cycle AC Parameters (TA = -40° C to + 85° C, VDD = 4.5V to 5.5V unless otherwise specified)
Symbol Parameter
Min
Max
tCE
Chip Enable Access Time ( to data valid)
tCA
Chip Enable Active Time
tRC
Read Cycle Time
tPC
Precharge Time
tAS
Address Setup Time
tAH
Address Hold Time
tOE
Output Enable Access Time
tHZ
Chip Enable to Output High-Z
tOHZ
Output Enable to Output High-Z
120
120
2,000
180
60
0
10
10
15
15
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
1
1
Write Cycle AC Parameters (TA = -40° C to + 85° C, VDD = 4.5V to 5.5V unless otherwise specified)
Symbol Parameter
Min
Max Units Notes
tCA
Chip Enable Active Time
tCW
Chip Enable to Write High
tWC
Write Cycle Time
tPC
Precharge Time
tAS
Address Setup Time
tAH
Address Hold Time
tWP
Write Enable Pulse Width
tDS
Data Setup
tDH
Data Hold
tWZ
Write Enable Low to Output High Z
tWX
Write Enable High to Output Driven
tHZ
Chip Enable to Output High-Z
tWS
Write Setup
tWH
Write Hold
120
2,000
ns
120
ns
180
ns
60
ns
0
ns
10
ns
40
ns
40
ns
0
ns
15
ns
1
10
ns
1
15
ns
1
0
ns
2
0
ns
2
Notes
1 This parameter is periodically sampled and not 100% tested.
2 The relationship between /CE and /WE determines if a /CE- or /WE-controlled write occurs. There is no timing
specification associated with this relationship.
Power Cycle Timing (TA = -40° C to + 85° C, VDD = 4.5V to 5.5V unless otherwise specified)
Symbol
Parameter
Min
Max Units
tPU
VDD(min) to First Access Start
1
-
µS
tPD
Last Access Complete to VDD(min)
0
-
µS
Notes
Rev. 3.0
Nov. 2004
7 of 11
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