MIC2551A_11 Datasheet, PDF (3/11 Pages) Micrel Semiconductor – USB Transceiver

MIC2551A
Micrel, Inc.
SUS
0
0
1
1
OE#
0
1
0
1
D+, D–
Driving
Receiving
Hi-Z
Hi-Z
RCV
Active
Active
0
0
VP/VM
Active
Active
Not active
Active
Note 1. During suspend VP and VM are active in order to detect out-of-band signaling conditions.
Table 1. Function Selection
Function
Normal transmit mode.
Normal receive mode.
Low power state.
Receiving during suspend (low power
state) (Note 1).
OE# = 0:
Input
VP
0
0
1
1
OE# = 1:
Input
D+
0
0
1
1
X - Undefined
Output
VM
D+
D-
RCV
0
0
0
X
1
0
1
0
0
1
0
1
1
1
1
X
Output
D-
VP
VM
RCV
0
0
0
X
1
0
1
0
0
1
0
1
1
1
1
X
Table 2. Truth Table During Normal Mode
Result
SE0
Logic 0
Logic 1
Undefined
Result
SE0
Logic 0
Logic 1
Undefined
November 2008
3
M9999-112008