isp1102a NXP Semiconductors, isp1102a Datasheet - Page 6

• Manufacturer Part Number: isp1102a
• Description: Isp1102a Advanced Universal Serial Bus Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ISP1102A_1
Product data sheet
Sharing mode — V
In this mode, the DP and DM pins are 3-stated and the ISP1102A allows external signals
of up to 3.6 V to share the DP and DM lines. The internal circuits of the ISP1102A ensure
that virtually no current (maximum 10 A) is drawn through the DP and DM lines. The
power consumption through pin V
Pins VBUSDET and RCV are driven to LOW to indicate this mode. The VBUSDET
function is ignored during suspend mode of the ISP1102A.
Some hysteresis is built into the detection of VREG3V3 lost.
Remark: Sharing mode is not possible in the regulator bypass option.
Table 6.
[1]
Table 7.
Pin
V
VREG3V3
V
VPU3V3
DP, DM
VP/VPO, VM/VMO
RCV
VBUSDET
OE_N, SUSPEND, SOFTCON
V
Connected
< 3.6 V
CC(5V0)
CC(IO)
CC(5V0)
VP/VPO and VM/VMO are bidirectional pins.
Pin states in sharing modes
Power supply configuration overview
V
connected
connected
CC(IO)
[1]
CC(IO)
Rev. 01 — 15 February 2007
is connected only, V
Configuration
normal mode
sharing mode
CC(IO)
drops to the low-power (suspended) state level.
Special characteristics
-
DP, DM and VPU3V3: high-Z
VP/VPO and VM/VMO: driven LOW
RCV: driven LOW
VBUSDET: driven LOW
CC(5V0)
Sharing mode
< 3.6 V
< 2.4 V
1.65 V to 3.6 V input
high-Z (off)
high-Z
LOW
LOW
LOW
high-Z
is < 3.6 V, and VREG3V3 is < 2.4 V.
Advanced USB transceiver
ISP1102A
© NXP B.V. 2007. All rights reserved.
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