MAX3349EETE+ Maxim Integrated Products, MAX3349EETE+ Datasheet - Page 8

• Manufacturer Part Number: MAX3349EETE+
• Description: IC TXRX USB 2.0 FS 16-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX3349EETE+

• Number Of Drivers/receivers: 1/1
• Protocol: USB 2.0
• Voltage - Supply: 4 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

USB 2.0 Full-Speed Transceiver with UART
Multiplexing Mode
Figure 1. Rise and Fall Times
Figure 2. Timing of VP and VM to D+ and D-
8
V
V
VM
VP
D+
USB_OLD
USB_OHD
D-
_______________________________________________________________________________________
, V
, V
OLD
OHD
t
PLH_DRV
t
FR
, t
FR_TUART
10%
90%
V
CRS_F
VP AND VM RISE/FALL TIMES < 4ns
90%
t
PHL_DRV
t
FF
10%
, t
FF_TUART
Figure 3. Driver Enable and Disable Timing
Figure 4. D+/D- Timing to VP, VM, and RCV
OE
OE
D+/D-
D+/D-
+3V
D+/D-
0V
RCV, VM, AND VP
t
t
PHZ_DRV
PLZ_DRV
t
t
PLH_RCV
PLH_SE
V
L
,
Timing Diagrams
t
t
PZL_DRV
PZH_DRV
INPUT RISE/FALL TIME < 4ns
VP/VM CONNECTED TO GND,
D+/D- CONNECTED
TO PULLUP
VP/VM CONNECTED TO V
D+/D- CONNECTED
TO PULLDOWN
t
t
PHL_RCV
PHL_SE
,
L
,