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GL819 Datasheet(PDF) 29 Page - GENESYS LOGIC

Part # GL819
Description  USB 2.0 Generation 3 Multi-I/F Card Reader Controller
PDF  34 Pages
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Manufacturer  GENESYS [GENESYS LOGIC]
Direct Link  http://www.genesyslogic.com
Logo GENESYS - GENESYS LOGIC

GL819 Datasheet(HTML) 29 Page - GENESYS LOGIC

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GL819 USB 2.0 Generation 3 Multi-I/F Card Reader Controller
©2000-2007 Genesys Logic Inc. - All rights reserved.
Page 29
6.5.7 Secure Digital / MultiMedia Card
Normal Mode:
Clock
Input
Output
t
ODLY
f
PP
t
WL
t
ISU
t
THL
t
TLH
t
IH
t
WH
Figure 6.7 - Timing Diagram of
Secure Digital / MultiMedia Card
SD Interface Timing (CL = 30PF)
SYMBOL
PARAMETER
CLOCK RATE
UNIT
fPP
Clock frequency Data Transfer Mode
24
20
15
6
MHz
fOD
Clock frequency Identification Mode
375
375
375
375
KHz
tWL
Clock low time (min)
18
22
30
80
ns
tWH
Clock high time (min)
18
22
30
80
ns
tTLH
Clock rise time (max)
3
3
3
3
ns
tTHL
Clock fall time (max)
3
3
3
3
ns
tISU
Input set-up time (min)
5
5
5
5
ns
tIH
Input hold time (min)
5
5
5
5
ns
tODLY
Output delay time (max)
14
14
14
14
ns



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