MIC2550A Datasheet, PDF (4/11 Pages) Micrel Semiconductor – Universal Serial Bus Transceiver

MIC2550A
Micrel, Inc.
Symbol
Parameter
Condition
Min Typ Max Units
Transceiver DC Characteristics
I_LO
Hi-Z State Data Line Leakage
0V < V_BUS < 3.3V, D+, D–, OE# = 1 pins only –10
+10
µA
V_DI
Differential Input Sensitivity
|(D+) – (D–)|, V_IN = 0.8V – 2.5V
0.2
V
V_CM
Differential Common-Mode Range Includes V_DI range
0.8
2.5
V
V_SE
Single-Ended Receiver Threshold
0.8
2.0
V
Receiver Hysteresis, Note 6
200
mV
V_OL
V_OH
V_CRS
Static Output Low, Note 5
Static Output High, Note 5
Output Signal Crossover Voltage
Note 6
OE# = 0, R_L = 1.5kΩ to 3.6V
OE# = 0, R_L = 15kΩ to GND
0.3
V
2.8
3.6
V
1.3
2.0
V
C_IN
Transceiver Capacitance, Note 6
Z_DRV
Driver Output Resistance
Low-Speed Driver Characteristics, Note 7
Pin to GND
Steady state drive, Note 6
20
pF
6
18
Ω
t_R
Transition Rise Time
t_F
Transition Fall Time
t_R/t_F
Rise and Fall Time Matching
V_CRS
Output Signal Crossover Voltage
Full-Speed Driver Characteristics, Note 7
C_L = 50pF
C_L = 600pF
C_L = 50pF
C_L = 600pF
T_R ÷ T_F
75
ns
300
ns
75
ns
300
ns
80
125
%
1.3
2.0
V
t_R
Transition Rise Time
t_F
Transition Fall Time
t_R/t_F
Rise and Fall Time Matching
V_CRS
Output Signal Crossover Voltage
Transceiver Timing, Note 7
C_L = 50pF
C_L = 50pF
T_R ÷ T_F
4
20
ns
4
20
ns
90
111.11 %
1.3
2.0
V
t_PVZ
OE# to RCVR Tri-state Delay
Figure 1
t_PZD
Receiver Tri-state to Transmit Delay Figure 1
t_PDZ
OE# to DRVR Tri-state Delay
Figure 1
t_PZV
Driver Tri-state to Receiver Delay Figure 1
t_PLH
V+/V– to D+/D– Propagation Delay Figure 4
t_PHL
V+/V– to D+/D– Propagation Delay Figure 4
t_PLH
D+/D– to RCV Propagation Delay Figure 3
t_PHL
D+/D– to RCV Propagation Delay Figure 3
t_PLH
D+/D– to V+/D– Propagation Delay Figure 3
t_PHL
D+/D– to V+/D– Propagation Delay Figure 3
15
ns
15
ns
15
ns
15
ns
15
ns
15
ns
15
ns
15
ns
8
ns
8
ns
Note 1.
Note 2.
Note 3.
Note 4.
Note 5.
Note 6.
Note 7.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Applies to the VP, VM, RCV, OE#, SPD, and SUS pins.
Applies to D+, D–.
Not production tested. Guaranteed by design.
Characterized specification(s), but not production tested.
M9999-031805
4
March 2005