Datasheet

 1999-2013 Microchip Technology Inc. Preliminary DS41124D-page 143
PIC16C745/765
FIGURE 16-14: MAXIMUM INPUT WAVEFORM TIMING SPECIFICATIONS
FIGURE 16-15: USB LOW SPEED SIGNALING
TABLE 16-12: USB AC AND DC SPECIFICATIONS
Note 1: The D+/D- signals can withstand a continuous short to VBUS, GND, cable shield or any other signal.
66.7ns
6MHz
4.6V
60ns
-1.0V
4ns
min
20ns
max
4ns
min
20ns
max
min
Pin
RSRC
RSRC = 39 ± 2%
V
72
70
10%
90%
Data Differential Lines
71
90%
10%
Note 1: Parameters are per USB Specification 1.1. No Microchip specific parameter numbers exist (per the PIC
Mid-Range Reference Manual, DS33023.
Parameter
No.
Sym Characteristic Min TYP† Max Units Conditions
T
LR Transition Rise Time 75 300 ns
(Note 1)
T
LF Transition Fall Time 75 300 ns (Note 1)
V
CRS Crossover Voltage 1.3 2.0 V (Note 1)
T
LRFM Rise and Fall Time Matching 80 125 % (Note 1)
V
IL Voltage Input Low 0.8 V (Note 1)
V
IH Voltage Input High 2.0 V (Note 1)
V
IHZ Voltage Input High Floating 2.7 3.6 V (Note 1)
Differential Input Sensitivity 0.2 V (D+)-(D-) (Note 1)
Differential Common Mode Range 0.8 2.5 V (Note 1)
V
OL Voltage Output Low 0.0 0.3 V (Note 1)
V
OH Voltage Output High 2.8 3.6 V (Note 1)
V
USB USB Voltage Output 2.7 3.6 V IUSB = 0 to 230A in suspend mode
0 to 2.6mA in non-suspend mode
(Note 1)
Note 1: Parameters are per USB Specification 1.1. No Microchip specific parameter numbers exist (per the PIC
Mid-Range Reference Manual, DS33023.