USB2229-NU-02 Standard Microsystems (SMSC), USB2229-NU-02 Datasheet - Page 15

• Manufacturer Part Number: USB2229-NU-02
• Manufacturer: Standard Microsystems (SMSC)

Specifications of USB2229-NU-02

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

5th Generation Hi-Speed USB Flash Media and IrDA Controller with Integrated Card Power FETs
Datasheet
SMSC USB2229/USB2230
Write Protect Switch
Busy or Data Ready
Card Detection
Write Enable
Chip Enable
Data In/Out
Data In/Out
Bus State
System
System
NAME
SM
SM
SM
SM
SM
MS
MS
MS
MS_SDIO/MS_
SM_nWPS
MS_D[3:1]
SYMBOL
SM_nB/R
SM_nWE
SM_nCD
SM_nCE
MS_BS
D0
Table 6.1 USB2229/USB2230 Pin Descriptions
MEMORY STICK INTERFACE
BUFFER
I/O8PD
I/O8PD
O8PU
O8PU
TYPE
IPU
IPU
O8
08
08
DATASHEET
I
15
This pin is an active low write strobe signal for 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).
A write-protect seal is detected, when this pin is low.
This pin has an internally controlled weak pull-up
resistor.
This pin is connected to the BSY/RDY pin of the SM
device.
An external pull-up resistor is required on this signal.
The pull-up resistor must be pulled up to the same
power source that powers the SM/NAND flash device.
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.
The bi-directional data signals have internal weak pull-
down resistors.
DESCRIPTION
Revision 1.4 (09-14-07)