UD61464DC08 Просмотр технического описания (PDF) - Zentrum Mikroelektronik Dresden AG
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UD61464DC08 Datasheet PDF : 14 Pages
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UD61466
Dynamic Characteristics
3)
F WRITE
Random Write Cycle Time
7)
RAS Pulse Width
CAS Pulse Width
Write Command Pulse Width
Write Command Set-up Time
11)
Data Set-up Time ref. to CAS
12)
Data Set-up Time ref. to W
12)
Column Address Set-up Time
12)
Column Address to W Delay Time
12)
Write Command Hold Time
Write Command Hold Time ref. to CAS-High
Write Command Hold Time ref. to RAS
Write Command to RAS Lead Time
Write Command to CAS Lead Time
Data Hold Time ref. to CAS
12)
Data Hold Time ref. to W
12)
Column Address Hold Time ref. to RAS
Column Address Hold Time
12)
Column Address Hold Time
12)
OE Command Hold Time
RAS to CAS Delay Time
6)
CAS Hold Time
RAS Hold Time
F READ-WRITE
Read-Write Cycle Time
7)
RAS Pulse Width
CAS Pulse Width
CAS Hold Time
RAS to WRITE Delay Time
11)
CAS to WRITE Delay Time
11)
Column to WRITE Delay Time
11)
F SCM
Symbol
Alt.
IEC
Min.
Max.
Unit
DC07 DC08 DC07 DC08
tRC
tRAS
tCAS
tWP
tWCS
tDS
tDS
tASC
tAWD
tWCH
-
tWCR
tRWL
tCWL
tDH
tDH
tAR
tCAH
tCAH
tOEH
tRCD
tCSH
tRSH
tcW
tw(RASL)
tw(CASL)
tw(W)
tsu(W-CAS)
tsu(D-CAS)
tsu(D-W)
tsu(CA-CAS)
tsu(CA-W)
th(CAS-W)
th(CASH-W)
th(RAS-W)
th(W-RAS)
th(W-CAS)
th(CAS-D)
th(W-D)
th(RAS-CA)
th(CAS-CA)
th(W-CA)
th(W-GL)
tRASL-CASL
tRASL-CASH
tCASL-RASH
130
70
25
15
0
0
0
0
0
15
0
55
20
20
15
15
55
15
15
20
20
70
20
150
ns
80 10000 10000 ns
25 10000 10000 ns
15
ns
0
ns
0
ns
0
ns
0
ns
0
ns
15
ns
0
ns
60
ns
20
ns
20
ns
15
ns
15
ns
60
ns
15
ns
15
ns
20
ns
20
50
60 ns
80
ns
20
ns
tRWC
tRAS
tCAS
tCSH
tRWD
tCWD
tAWD
tcRW
tw(RASL)RW
tw(CASL)RW
t(RASL-
CASH)RW
tRAS-W
tCAS-W
t(CA-W)RW
185
125
75
125
100
50
65
205
ns
135 10000 10000 ns
75 10000 10000 ns
135
ns
110
ns
55
ns
70
ns
Static Column Mode Cycle Time
RAS Pulse Width
CAS Precharge Time
tSC
tRASC
tc(A)
tw(RASL)
50
50
ns
70
80 100000 100000 ns
13)
tCP
tw(CASH)
10
10
ns
Remarks: see page 7
6
December 12, 1997
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