GL826 USB 2.0 Multi-Slot Flash Card Reader Controller
4.6 AC Characteristics of xD-Picture
The Timing diagrams are the same as SM.
Table 4.6－AC Characteristics of xD (CL = 40pF)
Parameter
tCLS
tCLH
tCS
Description
Min.
20
Max.
Unit
CLE Set up Time
CLE Hold Time
CE Setup up Time
CE Hold Time
-
-
-
-
-
-
-
-
-
40
20
tCH
40
tWP
WE Pulse Width
ALE Setup Time
ALE Hold Time
Data Setup Time
Data Hold Time
40
tALS
tALH
tDS
20
40
30
tDH
20
80
-
tWC
Write Cycle Time
tWH
tWW
tRR
WE High Hold Time
WP High to WE Low
Ready to RE Low
Read Pulse Width
Read Cycle Time
20
100
20
60
80
-
-
-
-
tRP
-
tRC
-
ns
tREA
tCEH
tREAID
tRHZ
tCHZ
tREH
tRSTO
tCSTO
tRHW
tWHC
tWHR
TAR1
tCR
RE Access Time(Serial Data Access)
CE High Hold Time
RE Access Time(ID Read)
RE High to Output Hi-Z
CE High to Output Hi-Z
RE High Hold Time
RE Access Time
45
-
250
-
90
30
30
-
5
-
20
-
45
55
-
CE Access Time
-
RE High to WE Low
WE High to CE Low
WE High to RE Low
ALE Low to RE Low
CE Low to RE Low
0
50
60
200
200
-
-
-
-
-
tWB
WE High to Busy
200
-
TAR2
tRB
ALE LOW to RE LOW
Last RE High to Busy
150
-
200
©2000-2007 Genesys Logic Inc. - All rights reserved.
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