USB2601-NU-02 Standard Microsystems (SMSC), USB2601-NU-02 Datasheet - Page 17

• Manufacturer Part Number: USB2601-NU-02
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2601-NU-02

• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Package Type: TQFP
• Mounting: Surface Mount
• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

4th Generation USB 2.0 Flash Media Controller with Integrated Card Power FETs & HS Hub
Datasheet
SMSC USB2601/USB2602
System Data In/Out
Card Detection
Card Insertion
System CLK
Chip Enable
Data In/Out
Data In/Out
Bus State
Data [3:0]
SD Clock
System
System
NAME
SM
SM
MS
MS
MS
MS
MS
MS
SD
MS_SDIO/MS_
SD_DAT[3:0]
MS_D[3:2]
MS_SCLK
SYMBOL
SM_nCD
SM_nCE
SD_CLK
MS_INS
MS_BS
MS_D1
D0
MEMORY STICK INTERFACE
BUFFER
I/O8PD
I/O8PD
I/O8PD
I/O8PU
O8PU
TYPE
IPU
IPU
O8
O8
O8
08
DATASHEET
SD INTERFACE
17
This pin is the active low chip enable signal to the SM
device.
When using the internal FET, this pin has an internal
weak pull-up resistor that is tied to the output of the
internal Power FET.
If an external FET is used (Internal FET is disabled),
then the internal pull-up is not available (external pull-
ups must be used, and should be connected to the
applicable Card Power Supply).
This is the card detection signal from SM device to
indicate if the device is inserted.
This pin has an internally controlled weak pull-up
resistor.
This pin is connected to the BS pin of the MS device.
It is used to control the Bus States 0, 1, 2 and 3 (BS0,
BS1, BS2 and BS3) of the MS device.
This pin is a bi-directional data signal for the MS device.
Most significant bit (MSB) of each byte is transmitted
first by either MSC or MS device.
The bi-directional data signal has an internal weak pull-
down resistor.
This pin is a bi-directional data signal for the MS device.
This pin has internally controlled weak pull-up and pull-
down resistors for various operational modes.
This pin is a bi-directional data signal for the MS device.
The bi-directional data signal has an internal weak pull-
down resistor.
This pin is the card detection signal from the MS device
to indicate, if the device is inserted.
This pin has an internally controlled weak pull-up
resistor.
This pin is an output clock signal to the MS device.
The clock frequency is software configurable.
These are bi-directional data signals.
These pins have internally controlled weak pull-up
resistors.
This is an output clock signal to SD/MMC device.
The clock frequency is software configurable.
DESCRIPTION
Revision 1.6 (06-20-08)