PDIUSBH12N PHILIPS [NXP Semiconductors], PDIUSBH12N Datasheet - Page 6

• Manufacturer Part Number: PDIUSBH12N
• Description: USB 2-port hub
• Manufacturer: PHILIPS [NXP Semiconductors]

1. Pin TEST3 should always be connected to Ground at all times.
Philips Semiconductors
PINNING
The PDIUSBH12 has two modes of operation. The first mode (Mode 0) configures the pins DNx_GL_N for GoodLink
second mode (Mode 1) configures the LED pins as per port overcurrent condition pins. An overcurrent condition on any port can be uniquely
identified in Mode 1. However, all downstream ports are disabled as a result of a single overcurrent condition. In addition to the two modes of
operation, the PDIUSBH12 can also be configured to take either a 48 MHz crystal oscillator (for backward compatibility to PDIUSBH11) or a 12
MHz crystal.
The internal 4X clock multiplier PLL will be activated when 12 MHz input XTAL mode is selected. Also, the output clock frequency is now
programmable rather than fixed to 12 MHz. The output clock frequency can be programmed through the Set Mode command. All these new
features are added while maintaining backward compatibility to the PDIUSBH11 through TEST2 and TEST1 pins.
NOTE:
Pin configuration
NOTE:
Pin 10 and Pin 14 show alternative pin functions, depending on
mode of operation (Mode 0 or Mode 1) as described in
Pin Description .
1999 Jul 22
USB 2-port hub
TEST2 TEST1
OCURRENT_N /
OCURRENT2_N
OCURRENT3_N
DN3_GL_N /
SWITCH_N
DN2_GL_N
SUSPEND
RESET_N
00
01
10
CLKOUT
11
TEST2
TEST3
TEST1
XTAL1
XTAL2
GND
V
CC
10
11
12
13
14
1
2
3
4
5
6
7
8
9
28
27
26
25
24
23
22
21
20
19
18
17
16 RSVD
15 RSVD
(Individual Overcurrent)
(Individual Overcurrent)
UP_DM
UP_DP
AV
AGND
DN2_DM
DN2_DP
DN3_DM
DN3_DP
GND
SCL
SDA
INT_N
CC
SV01751
(GoodLink )
(GoodLink )
MODE 0
MODE 0
MODE 1
MODE 1
MODE
6
INPUT XTAL FREQUENCY
(MHz)
48
12
12
48
OUTPUT CLOCK FREQUENCY
LED indication. The
PDIUSBH12
(AT REST)
12 MHz
12MHz
4 MHz
4 MHz
Product specification