USB2507-ADT SMSC, USB2507-ADT Datasheet - Page 11

• Manufacturer Part Number: USB2507-ADT
• Description: IC HUB 7PORT USB COMPATBL 80TQFP
• Manufacturer: SMSC
• Type: Integrated USB Compatible 3 Port Hubr

Specifications of USB2507-ADT

• Controller Type: USB Hub
• Interface: I²C
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 100mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP, 80-VQFP
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Supply Voltage Range: 1.62V To 1.98V, 3V To 3.6V
• Digital Ic Case Style: TQFP
• No. Of Pins: 80
• Operating Temperature Range: 0°C To +70°C
• Data Rate Max: 480Mbps
• Rohs Compliant: Yes
• For Use With: EVB-2507 - BOARD EVALUATION FOR USB2507
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1032

Integrated USB 2.0 Compatible 7-Port Hub
Datasheet
SMSC USB2507
Polarity strapping.
USB Transceiver
strapping option.
Current Sensing
strapping option
Switching and
Port 4 Amber
Port 3 Amber
Port 2 Amber
Port 1 Amber
Over Current
MTT Disable
Gang Power
LED Enable
Port Power
NAME
Sense
LED
LED
LED
LED
Bias
&
&
&
PRTPWR_POL
GANG_EN
OCS7:1_N
SYMBOL
MTT_EN
LED_EN
RBIAS
AM4/
AM2/
AM1/
AM3
Table 4.1 7-Port Hub Pin Descriptions (continued)
TYPE
I/O12
I/O12
I/O12
I/O12
I/O12
IPU
I-R
DATASHEET
Amber indicator LED for port 4. Will be active low when LED
support is enabled via EEPROM or SMBus.
If the hub is configured by the internal default configuration,
this pin will be sampled at RESET_N negation to determine
if LED support is enabled or disabled. Also, the active state
of the LED will be determined as follows:
‘0’ = LED support is disabled, LED is inactive
‘1’ = LED Support is enabled, LED is active low.
Amber indicator LED for port 3. Signal will be active low.
Amber indicator LED for port 2. Will be active low when LED
support is enabled via EEPROM or SMBus.
If the hub is configured by the internal default configuration,
this pin will be sampled at RESET_N negation to determine
if MTT support is disabled (STT only). Also, the active state
of the LED will be determined as follows:
‘0’ = MTT support is disabled, LED is active high
‘1’ = MTT support is enabled, LED is active low.
Amber indicator LED for port 1, Will be active low when LED
support is enabled via EEPROM or SMBus.
If the hub is configured by the internal default configuration,
this pin will be sampled at RESET_N negation to determine
if downstream port power switching and current sensing are
ganged, or individual port-by-port. Also, the active state of
the LED will be determined as follows:
‘0’ = Port-by-port sensing & switching, LED is active high
‘1’ = Ganged sensing & switching, LED is active low.
Port Power Polarity strapping determination for the active
signal polarity of the 7:1PRTPWR pins.
While RESET_N is asserted, the logic state of this pin will
(though the use of internal combinatorial logic) determine
the active state of the 7:1PRTPWR pins in order to ensure
that downstream port power is not inadvertently enabled to
inactive ports during a hardware reset.
On the rising edge of RESET_N (see the applicable
RESET_N timing table in
be latched internally, and will retain the active signal polarity
for the PRTPWR7:1 pin.
‘1’ = PRTPWR7:1 pins have an active ‘high’ polarity
‘0’ = PRTPWR7:1 pins have an active ‘low’ polarity
Input from external current monitor indicating an over-
current condition. {Note: Contains internal pull-up to 3.3V
supply}
A 12.0kΩ (+/− 1%) resistor is attached from ground to this
pin to set the transceiver’s internal bias settings.
11
FUNCTION
Section
5.6.1), the logic value will
Revision 2.3 (08-27-07)