USB2660 Standard Microsystems Corp., USB2660 Datasheet - Page 21

• Manufacturer Part Number: USB2660
• Description: Ultra Fast Usb 2.0 Hub And Multi-format Flash Media Controller With Dual Sd Interfaces
• Manufacturer: Standard Microsystems Corp.

Ultra Fast USB 2.0 Hub and Multi-Format Flash Media Controller with Dual SD Interfaces
Datasheet
SMSC USB2660/USB2660i
(CRD_PWR2)
(CRD_PWR1)
SYMBOL
nRESET
PLLFILT
GPIO10
CRFILT
VDD33
GPIO8
TEST
VSS
NC
64-PIN
ePad
QFN
15
43
54
56
23
62
14
24
33
42
47
57
64
46
48
5
Table 6.1 USB2660/USB2660i Pin Descriptions (continued)
(Table
BUFFER
I/O200
I/O200
TYPE
IS
I
6.2)
DIGITAL / POWER / GROUND
The ground pad is the only VSS for the device and must be tied to
DESCRIPTION
Card power drive: 3.3 V (100 mA or 200 mA)
This pin specifically powers the second Secure Digital interface (slot).
If card power is not being used to power the second SD interface, this
pin may be used as a GPIO.
Please reference
Mapping," on page
Card power drive: 3.3 V (100 mA or 200 mA)
This pin powers the multiplexed flash media interface (slot) for xD, MS,
and SD/MMC. If card power is not being used to power the multiplexed
flash media interface, this pin may be used as a GPIO.
Please reference
Power Configuration," on page
RESET Input
The system uses this active low signal reset the chip. The active low
pulse should be at least 1 μs wide.
TEST Input
Tie this pin to ground for normal operation.
VDD Core Regulator Filter Capacitor
This pin requires a 1.0 μF (or greater) ± 20% (ESR <0.1
to VSS.
Phase-locked Loop Regulator Filter Capacitor
This pin requires 1.0 μF (or greater) ± 20% (ESR <0.1
VSS.
3.3 V Power and Regulator Input
Please refer to
information.
Pins 24 and 64 require external bypass capacitors of 4.7 μF minimum.
ground with multiple vias.
No Connect pins
No trace or signal should be routed/attached to these pins.
DATASHEET
21
Chapter 10, "DC Parameters," on page 58
Section 8.4.5.9, "147h-14Bh: Device to LUN
Section 8.4.2.3, "A4h-A5h: Smart Media Device
52.
39.
Revision 1.0 (06-09-09)
Ω
) capacitor to
Ω
for more
) capacitor