CM120 C-Media Electronics, Inc., CM120 Datasheet - Page 32

• Manufacturer Part Number: CM120
• Description: Usb 7-in-1 Combo Card Reader Controller
• Manufacturer: C-Media Electronics, Inc.

Date: 09/09/2003
5.5 SECURE DIGITAL Timing
Output High Voltage
Output Low Voltage
Input High Voltage
Input Low Voltage
Parameter
Figure 28 : Timing diagram data input/output referenced to clock
Symbol
VOH
VOL
V1H
V1L
Table 11: SD/MMC bus I/O Signal Voltages
Figure 27 : SD/MMC bus signal levels
0.625*V
0.75*V
VSS-0.3
Min
DD
DD
- 31 -
USB 7-in-1 Combo Card Reader Controller
0.125*V
0.25*V
V
Max.
DD
+0.3
DD
DD
Unit
V
V
V
V
1
1
OH
OL
=-100µA @V
=-100µA @V
Conditions
Version: 1.3
CM120
DD
DD
min
min