ISP1104 Просмотр технического описания (PDF) - Philips Electronics
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ISP1104 Datasheet PDF : 19 Pages
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Philips Semiconductors
ISP1104
Advanced USB transceiver
9397 750 11229
Product data
Table 2: Pin description…continued
Symbol[1] Pin
Type
Description
SUSPND 5
I
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
MODE
6
I
mode input (CMOS level with respect to VCC(I/O)); a HIGH
level enables the differential input mode (pins VPO and
VMO) whereas a LOW level enables a single-ended input
mode (pins VO and FSE0); see Table 4 and Table 5
input pad; push pull; CMOS
VCC(I/O)
7
-
supply voltage for digital I/O pins (1.65 V to 3.6 V); when
VCC(I/O) is not connected, the pins D+ and D− are in
three-state; this supply pin is totally independent of
VCC(5.0) and Vreg(3.3) and must never exceed the Vreg(3.3)
voltage
VBUSDET 8
O
VBUS indicator output (CMOS level with respect to
VCC(I/O)); when VBUS > 4.1 V, then VBUSDET = HIGH and
when VBUS < 3.6 V, then VBUSDET = LOW
output pad; push pull; 4 mA output drive; CMOS
D−
9
AI/O
negative USB data bus connection (analog, differential)
D+
10
VPO/VO 11
AI/O
I
positive USB data bus connection (analog, differential);
connect a 1.5 kΩ resistor to pin Vpu(3.3)
driver data input (CMOS level with respect to VCC(I/O),
Schmitt trigger); see Table 4 and Table 5
input pad; push pull; CMOS
VMO/FSE0 12
I
driver data input (CMOS level with respect to VCC(I/O),
Schmitt trigger); see Table 4 and Table 5
input pad; push pull; CMOS
Vreg(3.3)
13
-
regulated supply voltage output (3.0 V to 3.6 V); a
decoupling capacitor of at least 0.1 µF is required
VCC(5.0)
14
-
Vpu(3.3)
15
-
supply voltage input (4.0 V to 5.5 V); can be connected
directly to the USB supply line VBUS
pull-up supply voltage (3.3 V ± 10 %); connect an external
1.5 kΩ resistor on pin D+ (full-speed); pin function is
controlled by input SOFTCON
SOFTCON 16
I
GND
exposed -
die pad
SOFTCON = LOW — Vpu(3.3) floating (high impedance);
ensures zero pull-up current
SOFTCON = HIGH — Vpu(3.3) = 3.3 V; internally
connected to Vreg(3.3)
software controlled USB connection input; a HIGH level
applies 3.3 V to pin Vpu(3.3), which is connected to an
external 1.5 kΩ pull-up resistor; this allows USB connect
or disconnect signalling to be controlled by software
input pad; push pull; CMOS
ground supply; down bonded to the exposed die pad
(heatsink); to be connected to the PCB ground
[1] Symbol names with an overscore (for example, NAME) indicate active LOW signals.
Rev. 02 — 14 October 2003
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
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