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
TIMING CHARACTERISTICS (continued)
(VBUS = +3.0V to +5.5V, VUART = +2.7V to +3.3V, VL = +1.4V to +2.75V, TA = -40°C to +85°C, unless otherwise noted. Typical values
are at VBUS = +5V, VL = +1.8V, VUART = +2.75V (UART Mode), and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
Single-Ended Receiver Disable
Delay
tPHZ_SE
tPLZ_SE
High-to-off transition,
VL > +1.65V (Figure 5)
High-to-off transition,
+1.4V < VL < +1.65V (Figure 5)
Low-to-off transition,
VL > +1.65V (Figure 5)
Low-to-off transition,
+1.4V < VL < +1.65V (Figure 5)
Single-Ended Receiver Enable
Delay
tPZH_SE
tPZL_SE
Off-to-high transition,
VL > +1.65V (Figure 5)
Off-to-high transition,
+1.4V < VL < +1.65 (Figure 5)
Off-to-low transition,
VL > +1.65V (Figure 5)
Off-to-low transition,
+1.4V < VL < +1.65V (Figure 5)
UART DRIVER CHARACTERISTICS (CL = 200pF)
Rise Time (D-)
tFR_TUART 10% to 90% of |VOHD - VOLD| (Figure 13)
Fall Time (D-)
tFF_TUART 90% to 10% of |VOHD - VOLD| (Figure 13)
Driver Propagation Delay
tPLH_TUART (Figure 13)
tPHL_TUART (Figure 13)
UART RECEIVER CHARACTERISTICS (CL = 15pF)
Receiver (Rx) Propagation Delay
tPLH_RUART (Figure 14)
tPHL_RUART (Figure 14)
Receiver (Rx) Rise/Fall Time
tFR_RUART
tFF_RUART
(Figure 14)
(Figure 14)
TYP MAX UNITS
10
12
ns
10
12
20
20
ns
20
20
60
200
ns
60
200
ns
70
200
ns
70
200
60
ns
60
45
ns
45
Note 1: Parameters are 100% production tested at TA =+25°C, unless otherwise noted. Limits over temperature are guaranteed
by design.
Note 2: Guaranteed by design; not production tested.
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