MAX3349E Просмотр технического описания (PDF) - Maxim Integrated
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MAX3349E Datasheet PDF : 16 Pages
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Hi-Speed USB 2.0 Full-Speed Transceiver
with UART Multiplexing Mode
ELECTRICAL CHARACTERISTICS (continued)
(VBUS = +3.0V to +5.5V, VUART = +2.7V to +3.3V, VL = +1.40V to +2.75V, TA = -40°C to +85°C, unless otherwise noted. Typical val-
ues are at VBUS = +5V, VL = +1.8V, VUART = +2.75V (UART Mode), and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
VUART Power-Supply Detection
Threshold
VTH_UART
DIGITAL INPUTS/OUTPUTS (VP, VM, RCV, SUS, OE, RX, TX, ENUM, BD)
Input-Voltage Low
VIL
Input-Voltage High
VIH
Output-Voltage Low
VOL
IOL = +2mA, VL > 1.65V
IOL = +1mA, VL < 1.65V
Output-Voltage High
VOH
IOH = +2mA, VL > 1.65V
IOH = +1mA, VL < 1.65V
Input Leakage Current
ILKG
ANALOG INPUTS/OUTPUTS (D+, D- in USB Mode)
Differential Input Sensitivity
VID
|VD+ - VD-|
Differential Common-Mode
Voltage
VCM
Includes VID range
Single-Ended Input
Low Voltage
VILSE
Single-Ended Input
High Voltage
VIHSE
USB Output-Voltage Low
VUSB_OLD RL = 1.5k connected to +3.6V
USB Output-Voltage High
VUSB_OHD RL = 15k connected to GND
Off-State Leakage Current
ILZ
Driver Output Impedance
ZDRV
Steady-state drive
Transceiver Capacitance
CIND
Measured from D+/D- to GND
Input Impedance
ZIN
Driver off
D+ Internal Pullup Resistor
RPU
ENUM = 1
ANALOG INPUTS/OUTPUTS (D+, D- in UART Mode)
Input-Voltage High
VUART_IH UART mode, +2.70 < VUART < +2.85V
Input-Voltage Low
VUART_IL
UART mode,
+2.70V < VUART < +2.85V
Output-Voltage High
VUART_OH
UART mode,
+2.70V < VUART < +2.85V
IUART_OH = -2mA
MIN
0.4 x
VL
0.7 x
VL
VL -
0.4
-1
0.2
0.8
2.0
2.8
-1
28
1
1425
2.0
2.2
TYP
0.65 x
VL
20
1500
MAX
0.9 x
VL
0.3 x
VL
0.4
+1
2.5
0.8
0.3
3.6
+1
43
1575
0.8
UNITS
V
V
V
V
V
µA
V
V
V
V
V
V
µA
pF
M
V
V
V
Output-Voltage Low
VUART_OL
UART mode,
+2.70V < VUART < +2.85V
IUART_OL = +2mA
0.4
V
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