Signal name Pin Type
#
Driver
Description
Reserved
MAIN5V
22
23
INPUT
INPUT
SPECIAL
Regulator
power input
Regulator
output
Connect to ground.
5V input to integrated regulator.
Connect to A side VBUS.
3V output from integrated
regulator. Can be used as a 3.3V
power supply and as 3.3v source
for the 1.5K USB pullup.
MAIN3V
24
OUTPUT
VSS
25
26
27
28
GROUND
IO
Ground
DMINUSA
DPLUSA
ACONN
SPECIAL
SPECIAL
CMOS input
D- pin for A side USB connection
D+ pin for A side USB connection
Indicates to the chip that the 5V is
present on the A side USB
connector. Connect directly to A
side VBUS.
IO
Input
BCONN
29
Input
CMOS input
Indicates to the chip that the 5V is
present on the B-side USB
connector. Connect directly to B-
side VBUS.
DMINUSB
DPLUSB
VDD
30
31
32
IO
SPECIAL
SPECIAL
D- pin for B side USB connection
D+ pin for B side USB connection
Input power for the digital portion
of the chip. Connect to the 3.3V
net w/ decoupling.
IO
POWER
AC/DC PARAMETERS
ABSOLUTE MAXIMUM RATINGS
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-65 °C to +150 °C
Ambient Temperature Under Bias . . . . . . . . . . . . . . . . . . . -40 °C to +85 °C
3.3 V Supply Voltage to Ground Potential . . . . . . . . . . . . . . –0.5V to +4.0 V
5 V Supply Voltage to Ground Potential . . . . . . . . . . . . . . –0.5V to +5.8 V
DC Input Voltage to Any Pin . . . . . . . . . . . . . . . . . . . . . . . .–0.5V to +5.8 V
AN2720 Data Sheet Version 1.0
06/07/00
Page 10
CYPRESS [ CYPRESS ]
