PDIUSBH12D データシートの表示（PDF） - Philips Electronics
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PDIUSBH12D Datasheet PDF : 28 Pages
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Philips Semiconductors
USB 2-port hub
Product specification
PDIUSBH12
Pin description (MODE 1 – Individual Overcurrent)
PIN NO
1
2
3
4
5
6
7
8
9
10
PIN SYMBOL
TEST1
TEST2
TEST3
RESET_N
GND
XTAL1
XTAL2
CLKOUT
VCC
OCURRENT2_N
TYPE
Input
Input
Input
Input
Power
Input
Output
Output
Power
Input
DRIVE
ST
3mA
ST
11
SWITCH_N
Output
OD6
12
SUSPEND
Output
OD6
13
DN2_GL_N
Output
OD6
14
OCURRENT3_N Input
ST
15
RSVD
Input
16
RSVD
Input
17
INT_N
Output
OD6
18
SDA
I/O
OD6
19
SCL
I/O
OD6
20
GND
Power
21
DN3_DP
AI/O
22
DN3_DM
AI/O
23
DN2_DP
AI/O
24
DN2_DM
AI/O
25
AGND
Power
26
AVCC
27
UP_DP
Power
AI/O
28
UP_DM
AI/O
NOTE:
1. Signals ending in _N indicate active low signals.
ST: Schmitt Trigger
OD6: Open Drain with 6 mA drive
AI/O: Analog I/O
DESCRIPTION
Connect to VCC for 48MHz crystal input.
Connect to Ground for 12MHz crystal input.
Connect to VCC
Connect to Ground
Power-on reset
Ground reference
Crystal connection 1 (48 or 12MHz depending on TEST1 pin)
Crystal connection 2 (48 or 12MHz depending on TEST1 pin)
Programmable output clock for external devices
Voltage supply 3.3V ± 0.3V
Downstream port 2 over-current notice. This pin is also use to sense the USB
VBUS. A LOW on this pin of less than 2 seconds is interpreted as an overcurrent
notice; longer than 2 seconds is interpreted as loss of VBUS.
Enables power to downstream ports
Device is in suspended state
Downstream port 2 GoodLink™ LED indicator
Downstream port 3 over-current notice
Reserved. Connect to GND for normal operation.
Reserved. Connect to GND for normal operation.
Connect to microcontroller interrupt
I2C bi-directional data
I2C bit-clock
Ground reference
Downstream port 3 D+ connection
Downstream port 3 D– connection
Downstream port 2 D+ connection
Downstream port 2 D- connection
Analog Ground reference
Analog voltage supply 3.3V ± 0.3V
Upstream D+ connection
Upstream D- connection
1999 Jul 22
8
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