Data Sheet

NUC123
May 3, 2017 Page 90 of 99 Rev.2.04
NUC123 SERIES DATASHEET
8.4.6 USB PHY Specifications
USB DC Electrical Characteristics 8.4.6.1
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
V
IH
Input high (driven)
2.0
V
V
IL
Input low
0.8
V
V
DI
Differential input sensitivity
|PADP-PADM|
0.2
V
V
CM
Differential
common-mode range
Includes V
DI
range
0.8
2.5
V
V
SE
Single-ended receiver threshold
0.8
2.0
V
Receiver hysteresis
200
mV
V
OL
Output low (driven)
0
0.3
V
V
OH
Output high (driven)
2.8
3.6
V
V
CRS
Output signal cross voltage
1.3
2.0
V
R
PU
Pull-up resistor
1.425
1.575
kΩ
R
PD
Pull-down resistor
14.25
15.75
kΩ
V
TRM
Termination Voltage for upstream port
pull up (RPU)
3.0
3.6
V
Z
DRV
Driver output resistance
Steady state drive*
10
Ω
C
IN
Transceiver capacitance
Pin to GND
20
pF
Note: Driver output resistance doesn’t include series resistor resistance.
USB Full-Speed Driver Electrical Characteristics 8.4.6.2
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
T
FR
Rising time
C
L
= 50p
4
20
ns
T
FF
Falling time
C
L
= 50p
4
20
ns
T
FRFF
Rising and falling time matching
T
FRFF
= T
FR
/T
FF
90
111.11
%
USB Power Dissipation 8.4.6.3
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
I
VBUS
VBUS current
(steady state)
Standby
50
uA
USB LDO Specification 8.4.6.4
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
BUS
VBUS Pin Input Voltage
4.0
5.0
5.5
V
V
DD33
LDO Output Voltage
3.0
3.3
3.6
V