stusb03e STMicroelectronics, stusb03e Datasheet - Page 4

• Manufacturer Part Number: stusb03e
• Description: Usb Transceiver
• Manufacturer: STMicroelectronics

Pin configuration
2
Figure 2.
Table 1.
4/20
Pln N°
10, 11
EXP
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Pin configuration
V
Symbol
D-, D+
VTRM
RSEL
BUSDET
CON
GND
V
RCV
Pin connections (Top View)
SPD
SUS
OE#
N.C.
V
Pin description
VM
VP
V
BUS
PU
IF
I/O
I/O
I/O
I/O
O
O
O
O
I
I
I
I
I
I
I
Speed selection input. A logic HIGH operates at edge rates for “fullspeed” operation.
A logic LOW operates edge rates for “lowspeed” operation. See also CON pin.
Receive Data. Output for USB differential data. (see
If OE# = H, VP = Receiver output (+)
If OE# = L, VP = Driver input (+) (see
If OE# = H, VM = Receiver output (-)
If OE# = L, VM = Driver input (-) (see
CONNECT (input). Connects the internal pull-up resistor to D+ if SPD and RSEL are
logic high. Controls status of V
Ground reference
Suspend (active-high). Turns off internal circuits to reduce supply current.
Full speed pull-up resistor selection input. If RSEL = 0 the internal pull-up resistor
connected to D+ is disabled and an external resistor connected to V
used.
Output Enable (active-low). Enables transceiver data transmission onto the bus.
When not active, the transceiver is in the receive mode. (see
Differential data lines that conform to the USB v2.0 standard. (see
3.3V Reference Supply Output. Requires a 1.0µF decoupling capacitor for stability.
Pull-up Supply Voltage Output. Used to connect 1.5K pull-up speed detect resistor
when RSEL or SPD is logic low. If CON = 0, V
= 3.3V ±10% (see
USB Bus Supply Voltage (4V to 5.5V). Supplies power to the USB transceiver and
internal circuitry.
System Interface Supply Voltage (1.6V to 3.6V). Provides reference supply voltage for
system I/O interface signals.
V
V
Not connected.
BUS
BUSDET
indicator output. When V
= Low (V
IF
Table 4.
referred).
).
PU
BUS
Name and function
pin if SPD or RSEL is logic low.
> 4.0V, V
Table 2
Table 2
BUSDET
)
)
PU
is high impedance. If CON = 1, V
= High; when < 3.6V,
Table 2
)
Table 2
Table 2
PU
)
pin must be
STUSB03E
)
PU