ISP1104W STEricsson, ISP1104W Datasheet - Page 7
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ISP1104W
Manufacturer Part Number
ISP1104W
Description
Manufacturer
STEricsson
Datasheet
1.ISP1104W.pdf
(20 pages)
Specifications of ISP1104W
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Product data
7.3 Power supply configurations
The ISP1104 can be used with different power supply configurations, which can be
changed dynamically.
Normal mode — Both V
V
then produces 3.3 V for USB connections. V
voltage source (1.65 V to 3.6 V), depending on the supply voltage of the external
circuit.
Disable mode — V
the internal circuits of the ISP1104 ensure that the D and 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
the USB mode and other modes when sharing the V
D are made three-state and the ISP1104 allows external signals of up to 3.6 V to
share the D and D lines. The internal circuits of the ISP1104 ensure that virtually
no current (maximum 10 A) is drawn via the D and D lines. The power
consumption through pin V
state level. Pins VP and VM are driven HIGH and pins VBUSDET and RCV are driven
LOW to indicate this mode. Some hysteresis is built into the detection of V
Table 7:
[1]
Table 8:
[1]
[2]
Pin
V
V
V
V
D , D
VP, VM
RCV
VBUSDET
VPO/VO, VMO/FSE0, MODE,
SUSPND, OE, SOFTCON
V
connected
connected
not connected
or <3.6 V
CC(5.0)
CC(5.0)
reg(3.3)
CC(I/O)
pu(3.3)
CC(5.0)
High impedance or driven LOW.
High impedance or driven LOW.
V
reg(3.3)
is connected to a 5 V source (4.0 V to 5.5 V). The internal voltage regulator
may not be operational.
Pin states in disable or sharing mode
Power supply configuration overview
V
connected
not connected
connected
Rev. 02 — 14 October 2003
CC(I/O)
CC(I/O)
CC(I/O)
Table 8
CC(I/O)
is not connected and V
is connected and V
CC(I/O)
provides an overview of power supply configurations.
and V
Configuration
normal mode
disable mode
sharing mode
and pin V
Disable mode
not present
high impedance (off)
high impedance
invalid
invalid
invalid
high impedance
5 V input
3.3 V output
CC(5.0)
CC(I/O)
[1]
[1]
[1]
CC(5.0)
are connected. For 5 V operation,
CC(I/O)
CC(5.0)
lost.
drops to the low-power (suspended)
Special characteristics
-
D , D and V
VP, VM, RCV: invalid
D , D and V
VP, VM driven HIGH; RCV driven
LOW; VBUSDET driven LOW; V
pulled-down
CC(5.0)
is independently connected to a
BUS
< 3.6 V to differentiate between
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
is connected. In this mode,
. In this mode, pins D and
Advanced USB transceiver
Sharing mode
<3.6 V
pulled-down
1.65 V to 3.6 V input
high impedance (off)
high impedance
H
L
L
high impedance
pu(3.3)
pu(3.3)
high impedance;
high impedance;
ISP1104
[1][2]
CC(5.0)
reg(3.3)
6 of 19
lost.