ISP1161ABM-S ST-Ericsson Inc, ISP1161ABM-S Datasheet - Page 110
ISP1161ABM-S
Manufacturer Part Number
ISP1161ABM-S
Description
IC USB HOST CTRL FULL-SPD 64LQFP
Manufacturer
ST-Ericsson Inc
Datasheet
1.ISP1161ABD.pdf
(135 pages)
Specifications of ISP1161ABM-S
Controller Type
USB 2.0 Controller
Interface
Parallel
Voltage - Supply
3.3V, 5V
Current - Supply
47mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ISP1161ABM-S
Manufacturer:
ST-Ericsson Inc
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10 000
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Philips Semiconductors
15. Crystal oscillator and LazyClock
9397 750 13962
Product data
Fig 45. Oscillator circuit with external crystal.
ISP1161A
CLKOUT
XTAL2
XTAL1
The ISP1161A has a crystal oscillator designed for a 6 MHz parallel-resonant crystal
(fundamental). A typical circuit is shown in
signal of 6 MHz can be applied to input XTAL1, while leaving output XTAL2 open. See
Figure
The 6 MHz oscillator frequency is multiplied to 48 MHz by an internal PLL. This
frequency is used to generate a programmable clock output signal at pin CLKOUT,
ranging from 3 MHz to 48 MHz.
In ‘suspend’ state the normal CLKOUT signal is not available, because the crystal
oscillator and the PLL are switched off to save power. Instead, the CLKOUT signal
can be switched to the LazyClock frequency of 100 ± 50 % kHz.
The oscillator operation and the CLKOUT frequency are controlled via the
DcHardwareConfiguration register, as shown in
involved:
For details about the DC’s interrupt logic, see
•
•
•
CLKRUN switches the oscillator on and off
CLKDIV[3:0] is the division factor determining the normal CLKOUT frequency
NOLAZY controls the LazyClock signal output during ‘suspend’ state.
6 MHz
18 pF
18 pF
46.
004aaa098
Rev. 03 — 23 December 2004
Full-speed USB single-chip host and device controller
Fig 46. Oscillator circuit using external oscillator.
ISP1161A
Figure
CLKOUT
XTAL2
XTAL1
Section
Figure
45. Alternatively, an external clock
n.c.
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
8.6.3.
47. The following bits are
V CC
OSC
ISP1161A
Out
004aaa099
6 MHz
109 of 134
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