USB332X Standard Microsystems Corporation, USB332X Datasheet - Page 6

• Manufacturer Part Number: USB332X
• Description: Miniature Hi-speed USB Transceiver with 1.8V ULPI Interface
• Manufacturer: Standard Microsystems Corporation

Revision 0.3 (02-04-08)
BALL
D2
D1
E1
E2
E3
D3
E4
E5
D4
A5
D5
C4
C5
B4
B5
A4
CLKOUT
DATA[7]
DATA[6]
DATA[5]
DATA[4]
DATA[3]
DATA[2]
DATA[1]
DATA[0]
SPK_R
VDD33
SPK_L
NAME
NXT
DIR
DM
DP
Table 1 USB332x Pin Description (continued)
PRODUCT PREVIEW
DIRECTION/
Output,
Output,
Output,
Analog
Analog
Analog
Analog
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
Power
TYPE
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
I/O,
6
ACTIVE
LEVEL
High
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
3.3V Regulator Output. A 2.2uF (<1 ohm
ESR) bypass capacitor to ground is
required for regulator stability. The
bypass capacitor should be placed as
close as possible to the USB332x.
D- pin of the USB cable.
D+ pin of the USB cable.
USB switch in/out for DP signals
USB switch in/out for DM signals
ULPI bi-directional data bus. DATA[7] is
the MSB.
ULPI bi-directional data bus.
ULPI bi-directional data bus.
ULPI bi-directional data bus.
ULPI Clock Out Mode:
60MHz ULPI clock output. All ULPI
signals are driven synchronous to the
rising edge of this clock.
ULPI Clock In Mode:
This pin is connected to VDD18 to
configure 60MHz ULPI Clock IN mode.
ULPI bi-directional data bus.
ULPI bi-directional data bus.
ULPI bi-directional data bus.
ULPI bi-directional data bus. DATA[0] is
the LSB.
The PHY asserts NXT to throttle the data.
When the Link is sending data to the
PHY, NXT indicates when the current
byte has been accepted by the PHY. The
Link places the next byte on the data bus
in the following clock cycle.
Controls the direction of the data bus.
When the PHY has data to transfer to the
Link, it drives DIR high to take ownership
of the bus. When the PHY has no data to
transfer it drives DIR low and monitors
the bus for commands from the Link.
Miniature Hi-Speed USB Transceiver with 1.8V ULPI Interface
DESCRIPTION
SMSC USB332x