ISP1102 데이터 시트보기 (PDF) - NXP Semiconductors.
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ISP1102 Datasheet PDF : 26 Pages
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NXP Semiconductors
ISP1102
Advanced USB transceiver
Table 2. Pin description …continued
Symbol[1]
Pin
Type
HBCC16 HVQFN14
SUSPEND 5
5
I
n.c.
6
-
-
VCC(I/O)
7
6
-
VBUSDET 8
7
O
DM
9
8
AI/O
DP
10
9
AI/O
n.c.
11
-
-
n.c.
12
-
-
n.c.
-
10
-
VREG3V3
13
11
-
VCC(5V0)
14
12
-
VPU3V3
15
13
-
SOFTCON 16
14
I
GND
exposed exposed -
die pad die pad
Description
suspend input (CMOS level with respect to VCC(I/O)); a HIGH level enables
low-power state while the USB bus is inactive and drives output RCV to a
LOW level
input pad; push pull; CMOS
not connected
supply voltage for digital I/O pins (1.65 V to 3.6 V). When VCC(I/O) is not
connected, the DP and DM pins are in 3-state. This supply pin is totally
independent of VCC(5V0) and VREG3V3 and must never exceed the
VREG3V3 voltage.
VBUS indicator output (CMOS level with respect to VCC(I/O)); when
VBUS > 4.1 V, VBUSDET = HIGH and when VBUS < 3.6 V,
VBUSDET = LOW; when SUSPEND = HIGH, the VBUSDET function is
invalid
output pad; push pull; 4 mA output drive; CMOS
negative USB data bus connection (analog, differential)
positive USB data bus connection (analog, differential)
not connected
not connected
not connected
internal regulator option: regulated supply voltage output
(3.0 V to 3.6 V) during 5 V operation; a decoupling capacitor of at least
0.1 µF is required
regulator bypass option: used as a supply voltage input (3.3 V ± 10 %)
for 3.3 V operation
internal regulator option: supply voltage input (4.0 V to 5.5 V); can be
directly connected to USB line VBUS
regulator bypass option: connect to VREG3V3
pull-up supply voltage (3.3 V ± 10 %); connect an external 1.5 kΩ resistor
on DP (full-speed)
This pin function is controlled by the SOFTCON input:
SOFTCON = LOW — VPU3V3 floating (high-Z); ensures zero pull-up
current
SOFTCON = HIGH — VPU3V3 = 3.3 V; internally connected to
VREG3V3
software controlled USB connection input; a HIGH level applies 3.3 V to
pin VPU3V3, which is connected to an external 1.5 kΩ pull-up resistor;
this allows USB connect or disconnect signaling to be controlled by
software
input pad; push pull; CMOS
ground supply; down bonded to the exposed die pad (heat sink); to be
connected to the PCB ground
[1] Symbol names with an overscore (for example, OE) indicate active LOW signals.
ISP1102_5
Product data sheet
Rev. 05 — 11 December 2007
© NXP B.V. 2007. All rights reserved.
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