at83c5122 ATMEL Corporation, at83c5122 Datasheet - Page 192

• Manufacturer Part Number: at83c5122
• Description: At83c5123 C51 Microcontroller With Usb And Smart Card Reader Interfaces
• Manufacturer: ATMEL Corporation

USB Interface
192
AT8xC5122/23
Figure 113. USB Interface
Symbol
V
V
V
V
V
V
REF
IHZ
OH
OL
IH
IL
Parameter
USB Reference Voltage
Input High Voltage for D+ and D- (driven)
Input High Voltage for D+ and D- (floating)
Input Low Voltage for D+ and D-
Output High Voltage for D+ and D-
Output Low Voltage for D+ and D-
Min
3.0
2.0
2.7
2.8
0.0
Typ
(5)
Max
4202E–SCR–06/06
3.6
4.0
3.6
0.8
3.6
0.3
Unit
V
V
V
V
V
V