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TUSB1105, TUSB1106

ADVANCED UNIVERSAL SERIAL BUS TRANSCEIVERS

SCAS818D – MAY 2006 – REVISED FEBRUARY 2008

TERMINAL FUNCTIONS (continued)

TERMINAL

TUSB1105

TUSB1106

I/O

DESCRIPTION

PIN NO.

PIN NO.

RGT

RTZ

PW

RTZ

GND

Die pad

Die pad

8

6

connected, the D+ and D– pins are in 3-state. This supply pin is

7

7

9

7

voltage.

of differential data outputs D+ and D– according to the transmission speed.

SPEED

8

8

10

8

I

Input pad, push pull, CMOS.

LOW – low speed (1.5 Mbit/s)

HIGH – full speed (12 Mbit/s)

Negative USB data bus connection (analog, differential). For low-speed

D–

9

9

11

9

AI/O

Positive USB data bus connection (analog, differential). For full-speed

D+

10

10

12

10

AI/O

VPO/VO

11

11

I

Driving Function Table (pin OE = L) using single-ended input data interface

for TUSB1105 (pin MODE = L), and Driving Function Table (pin OE = L)

VPO

13

11

using differential input data interface for TUSB1105 (pin MODE = H) and

TUSB1106 input pad. Push pull, CMOS.

VMO/FSE0

12

12

I

Driving Function Table (pin OE = L) using single-ended input data interface

for TUSB1105 (pin MODE = L), and Driving Function Table (pin OE = L)

VMO

14

12

using differential input data interface for TUSB1105 (pin MODE = H) and

TUSB1106 input pad. Push pull, CMOS.

Internal regulator option. Regulated supply-voltage output (3 V to 3.6 V)

during 5-V operation. A decoupling capacitor of at least 0.1 mF is required

13

13

15

13

for the regulator bypass option. Used as a supply-voltage input for

3.3 V ± 10% operation.

Internal regulator option. Supply-voltage input (4 V to 5.5 V). Can be

14

14

16

14

connected directly to USB supply VBUS regulator bypass option. Connect

Pullup supply voltage (3.3 V ± 10%). Connect an external 1.5-k

Ω resistor on

D+ (full speed) or D– (low speed). Pin function is controlled by input

SOFTCON.

15

15

1

15

current

Software-controlled USB connection. A HIGH level applies 3.3 V to pin

SOFTCON

16

16

2

16

I

USB connect/disconnect signaling to be controlled by software input pad.

Push pull, CMOS.

(2)

TUSB1105 ground terminal is connected to the exposed die pad (heat sink). The package die pad is open on the TUSB1106.

4

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Product Folder Link(s): TUSB1105 TUSB1106