GL827 View Datasheet(PDF) - GENESYS LOGIC
Part Name
Description
MFG CO.
'GL827' PDF : 47 Pages View PDF
GL827 USB 2.0 Single Slot Card Reader Controller
AC Characteristics of Smart Media Interface (CLOAD = 30 pF)
SYMBOL
PARAMETER
tCLS CLE Setup Time
tCLH CLE Hold Time
tCS
-CE Setup Time
tCH
-CE Hold Time
tWP
-WE Pulse Width
tALS ALE Setup Time
tALH ALE Hold Time
tDS
Data Setup Time
tDH
Data Hold Time
tWC Write Cycle Time
tWH -WE High Hold Time
tWW -WP High to –WE Low
tRR
Ready to –RE Low
tRP
Read Pulse Width
tRC
Read cycle Time
tREA -RE Access Time (Serial Data Access)
tCEH -CE High Hold Time (At the Last Serial Read)
tREAID -RE Access Time (ID Read)
tRHZ -RE High to Output Hi-Z
tCHZ -CE High to Output Hi-Z
tREH -RE High Hold Time
tRSTO -RE Access Time
tCSTO -CE Access Time
tRHW -RE High to -WE Low
tWHC -WE High to –CE Low
tWHR -WE High to –RE Low
tAR1 ALE Low to –RE Low (Address Register Read, ID Read)
tCR
-CE Low to –RE Low (Data Register Read, ID Read)
tWB -WE High to Busy
tAR2 ALE Low to RE Low (Read Cycle)
tRB
Last –RE High to Busy (at Sequential Read)
tCRY -CE High to Ready
MIN.
20
40
20
40
40
20
40
30
20
80
20
100
20
60
80
-
250
-
5
-
20
-
-
0
50
60
200
200
-
150
-
-
MAX.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
45
-
90
30
30
-
45
55
-
-
-
-
-
200
500
1
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
©2000-2007 Genesys Logic Inc. - All rights reserved.
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