ISP1161A1BM,557 NXP Semiconductors, ISP1161A1BM,557 Datasheet - Page 110
ISP1161A1BM,557
Manufacturer Part Number
ISP1161A1BM,557
Description
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1161A1BM557.pdf
(137 pages)
Specifications of ISP1161A1BM,557
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Lead Free Status / RoHS Status
Compliant
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14. Power supply
15. Crystal oscillator and LazyClock
9397 750 13961
Product data
Fig 43. Using a 5 V supply.
connector
upstream
to USB
port
1.5 k
D_DP
ISP1161A1
The ISP1161A1 can operate at either 5 V or 3.3 V.
When using 5 V as the ISP1161A1’s power supply input, only V
connected to the 5 V power supply. An application with a 5 V power supply input is
shown in
3.3 V for its internal core. This internal 3.3 V can also be obtained from V
(pin 58) to supply the 1.5 k pull-up resistor of the DC side upstream port signal
D_DP. The signal D_DP is connected to the standard USB upstream port connector’s
pin D+.
When using 3.3 V as the power supply input, the internal DC/DC regulator will be
bypassed. All four power supply pins (V
power supply input.
It is recommended that you connect all four power supply pins to the 3.3 V power
supply, as shown in
constraints, you must connect at least V
For both 3.3 V and 5 V operation, all four power supply pins should be connected to a
decoupling capacitor.
The ISP1161A1 has a crystal oscillator designed for a 6 MHz parallel-resonant
crystal (fundamental). A typical circuit is shown in
clock signal of 6 MHz can be applied to input XTAL1, while leaving output XTAL2
open. See
V reg(3.3)
V hold1
V hold2
V CC
Figure
Figure
GND
Rev. 03 — 23 December 2004
43. The ISP1161A1 has an internal DC/DC regulator to provide
46.
004aaa188
Figure
5 V
44. If, however, you have board space (routing area)
Fig 44. Using a 3.3 V supply.
connector
upstream
to USB
port
USB single-chip host and device controller
CC
CC
1.5 k
, V
and V
reg(3.3)
reg(3.3)
Figure
, V
D_DP
hold1
ISP1161A1
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
to the 3.3 V power supply.
45. Alternatively, an external
V reg(3.3)
and V
V hold1
V hold2
V CC
ISP1161A1
CC
hold2
(pin 56) can be
) can be used as
GND
reg(3.3)
004aaa189
109 of 136
3.3 V
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