USB1T20 Просмотр технического описания (PDF) - Fairchild Semiconductor

Номер в каталоге

Компоненты Описание

производитель

USB1T20

Universal Serial Bus Transceiver

Fairchild Semiconductor 

AC Waveforms

VOL and VOH are the typical output voltage drops that occur with the output load. (VCC never goes below 3.0V)

FIGURE 1. Rise and Fall Times

FIGURE 2. Vpi, Vmo/FSEO to D+/D−

FIGURE 3. D+/D− to RCV, Vp/Vm

Test Circuits and Waveforms

FIGURE 4. OE to D+/D−

Load for Vm/Vp and RCV

Load for Enable and Disable Times

Note:

V = 0 for tPZH, tPHZ

V = VCC for tPZL, tPLZ

Load for D+/D−

CL = 50 pF, Full Speed

CL = 200 pF, Low Speed (Minimum Timing)

CL = 600 pF, Low Speed (Maximum Timing)

1.5 kΩ on D− (Low Speed) or D+ (Full Speed) only

Test S1

D−/LS Close

D+/LS Open

D−/FS Open

D+/FS Close

www.fairchildsemi.com

6

Share Link: