ISP1183BS STEricsson, ISP1183BS Datasheet - Page 10

• Manufacturer Part Number: ISP1183BS
• Manufacturer: STEricsson

Specifications of ISP1183BS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

ISP1183_3
Product data sheet
Fig 3. ISP1183 with a 4.0 V to 5.5 V supply
VOUT3V3
21
ISP1183
7.12 Crystal oscillator
7.11 Power supply
12
18
30
8
Table 3.
[1]
[2]
[3]
[4]
The ISP1183 is powered from a single supply voltage, ranging from 4.0 V to 5.5 V. An
integrated voltage regulator provides a 3.3 V supply voltage for the internal logic and the
USB transceiver. This voltage is available at pin V
resistor on USB connection pin DP. See
The ISP1183 can also be operated from a 3.0 V to 3.6 V supply, as shown in
this case, the internal voltage regulator is disabled and pin V
to V
The ISP1183 has a crystal oscillator designed for a 6 MHz parallel-resonant crystal
(fundamental). A typical circuit is shown in
of 6 MHz can be applied to input XTAL1, while leaving output XTAL2 open.
Pin name
SUSPEND
VBUSDET_N
DATA
V
V
V
V
BUS
REG(3V3)
DD(I/O)
DD(I/O)
Not driven to LOW. There is, however, no current flow through pads because no I/O supply voltage is
available. Therefore, no potential will develop at the output.
During the normal operation, when V
USB bus for 3 ms or more, a suspend interrupt is generated on pin INT_N. On receiving the suspend
interrupt, the external processor issues a GOSUSP command to the device. Once the GOSUSP command
is issued by the processor, the device starts to prepare itself to go to suspend mode. During suspend, to
reduce the power consumption, internal clocks can be shut down. Once the device is completely ready to
go into suspend mode, it will assert pin SUSPEND to HIGH and go into suspend mode. The typical time
between the issuing of the GOSUSP command to the device and the device asserting pin SUSPEND to
HIGH is approximately 2 ms.
Independent of the external reset. Depends only on the power-on reset.
On connecting the USB cable (V
approximately 2.5 ms to 3.5 ms.
BUS
. For details, see
1.65 V to 3.6 V
ISP1183 operation modes
Plug-out state Dead state
H
H
Hi-Z
4.0 V to 5.5 V
Rev. 03 — 20 January 2009
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Section
BUS
L
L
L
[1]
[1]
[1]
), pin VBUSDET_N will change from HIGH level to LOW level in
17.
BUS
Fig 4. ISP1183 with a 3.0 V to 3.6 V supply
…continued
is available, pin SUSPEND is LOW. If there is no activity on the
Low-power USB Peripheral Controller with DMA
Figure
Figure
VOUT3V3
Reset state
L
L
Hi-Z
[3]
3.
5. Alternatively, an external clock signal
REG(3V3)
21
ISP1183
to connect an external pull-up
Plug-in state
L
H → L
Hi-Z
REG(3V3)
12
18
30
8
V
V
V
V
[4]
BUS
REG(3V3)
DD(I/O)
DD(I/O)
© ST-NXP Wireless 2009. All rights reserved.
must be connected
ISP1183
3.0 V to 3.6 V
Normal state
L
L
-
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Figure
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4. In