isp1106dh NXP Semiconductors, isp1106dh Datasheet - Page 8

• Manufacturer Part Number: isp1106dh
• Description: Advanced Universal Serial Bus Transceivers
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 11231
Product data
7.3 Power supply configurations
The ISP1105/1106 can be used with different power supply configurations, which can
be changed dynamically. An overview is given in
Normal mode — Both V
For 5 V operation, V
voltage regulator then produces 3.3 V for the USB connections. For 3.3 V operation,
both V
independently connected to a voltage source (1.65 V to 3.6 V), depending on the
supply voltage of the external circuit.
Disable mode — V
connected. In this mode, the internal circuits of the ISP1105/1106 ensure that the
(D , D ) pins are in three-state and the power consumption drops to the low-power
(suspended) state level. Some hysteresis is built into the detection of V
Sharing mode — V
this mode, the (D , D ) pins are made three-state and the ISP1105/1106 allows
external signals of up to 3.6 V to share the (D D ) lines. The internal circuits of the
ISP1105/1106 ensure that virtually no current (maximum 10 A) is drawn via the (D
D ) lines. The power consumption through pin V
(suspended) state level. Both the VP and VM pins are driven HIGH to indicate this
mode. Pin RCV is made LOW. Some hysteresis is built into the detection of V
lost.
Table 8:
[1]
[2]
Pins
V
V
V
(D , D
(VP, VM)
RCV
Inputs (VO/VPO, FSE0/VMO,
SPEED, MODE
SOFTCON)
CC(5.0)
CC(I/O)
pu(3.3)
High impedance or driven LOW.
ISP1105 only.
CC(5.0)
/ V
reg(3.3)
Pin states in disable or sharing mode
and V
[2]
, SUSPND, OE,
Rev. 08 — 19 February 2004
reg(3.3)
CC(I/O)
CC(5.0)
CC(I/O)
CC(I/O)
are connected to a 3.3 V source (3.0 to 3.6 V). V
is not connected, V
is connected, (V
is connected to a 5 V source (4.0 to 5.5 V). The internal
and V
Disable mode state
5 V input / 3.3 V output;
3.3 V input / 3.3 V input
not present
high impedance (off)
high impedance
invalid
invalid
high impedance
CC(5.0)
[1]
[1]
CC(5.0)
or (V
CC(5.0)
CC(I/O)
CC(5.0)
Table
and V
or (V
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Advanced USB transceivers
9.
drops to the low-power
and V
reg(3.3)
ISP1105/1106
CC(5.0)
Sharing mode state
not present
1.65 V to 3.6 V input
high impedance (off)
high impedance
H
L
high impedance
reg(3.3)
) are not connected. In
and V
) are connected.
reg(3.3)
CC(I/O)
CC(I/O)
) are
reg(3.3)
lost.
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