Datasheet

USB3320
DS00001792E-page 12  2014-2016 Microchip Technology Inc.
4.4 Digital IO Pins
4.5 DC Characteristics: Analog I/O Pins
TABLE 4-4: DIGITAL IO CHARACTERISTICS: RESETB, CLKOUT, STP, DIR, NXT, DATA[7:0] &
REFCLK PINS
Parameter Symbol Condition MIN TYP MAX Units
Low-Level Input Voltage V
IL
V
SS
0.4 *
V
DDIO
V
High-Level Input Voltage V
IH
0.68 *
V
DDIO
V
DDIO
V
High-Level Input Voltage
REFCLK only
V
IH
0.68 *
V
DD18
V
DD33
V
Low-Level Output Voltage V
OL
I
OL
= 8mA 0.4 V
High-Level Output Voltage V
OH
I
OH
= -8mA V
DDIO
-
0.4
V
High-Level Output Voltage
CPEN Only
V
OH
I
OH
= -8mA V
DD33
-
0.4
V
Input Leakage Current I
LI
V
DD33
-
0.4
±10 uA
Pin Capacitance Cpin 4 pF
STP pull-up resistance R
STP
InterfaceProtectDisable = 0 55 67 77 kΩ
DATA[7:0] pull-dn resistance R
DATA_PD
ULPI Synchronous Mode 55 67 77 kΩ
CLKOUT External Drive V
IH_ED
At start-up or following reset 0.4 *
V
DDIO
V
TABLE 4-5: DC CHARACTERISTICS: ANALOG I/O PINS (DP/DM)
Parameter Symbol Condition MIN TYP MAX Units
LS/FS FUNCTIONALITY
Input levels
Differential Receiver Input
Sensitivity
V
DIFS
| V(DP) - V(DM) | 0.2 V
Differential Receiver
Common-Mode Voltage
V
CMFS
0.8 2.5 V
Single-Ended Receiver Low
Level Input Voltage
V
ILSE
Note 4-6 0.8 V
Single-Ended Receiver High
Level Input Voltage
V
IHSE
Note 4-6 2.0 V
Single-Ended Receiver
Hysteresis
V
HYSSE
0.050 0.150 V
Output Levels
Low Level Output Voltage V
FSOL
Pull-up resistor on DP;
R
L
= 1.5kΩ to V
DD33
0.3 V
High Level Output Voltage V
FSOH
Pull-down resistor on DP,
DM; Note 4-6
R
L
= 15kΩ to GND
2.8 3.6 V
Termination
Driver Output Impedance for
HS and FS
Z
HSDRV
Steady state drive 40.5 45 49.5 Ω
Input Impedance Z
INP
RX, RPU, RPD disabled 1.0 MΩ
Pull-up Resistor Impedance R
PU
Bus Idle, Note 4-5 0.900 1.24 1.575 kΩ
Pull-up Resistor Impedance R
PU
Device Receiving, Note 4-5 1.425 2.26 3.09 kΩ