TUSB2036

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SLLS372E

– MARCH 2000 – REVISED NOVEMBER 2011

TERMINAL FUNCTIONS (continued)

TERMINAL

I/O

DESCRIPTION

NAME

NO.

3, 25

3.3-V supply voltage

Crystal 1/48-MHz clock input. When MODE is low, XTAL1/CLK48 is a 6-MHz crystal input with 50% duty cycle. An

XTAL1/CLK48

30

I

internal APLL generates the 48-MHz and 12-MHz clocks used internally by the ASIC logic. When MODE is high,

XTAL1/CLK48 acts as the input of the 48-MHz clock and the internal APLL logic is bypassed.

XTAL2

29

O

Crystal 2. XTAL2 is a 6-MHz crystal output. This terminal must be left open when using an oscillator.

ABSOLUTE MAXIMUM RATINGS

(1)

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

–0.5

3.6

V

Input voltage range

–0.5

V

Output voltage range

–0.5

V

Input clamp current

±20

mA

Output clamp current

±20

mA

Storage temperature range

–65

150

°C

Operating free-air temperature range

0

70

°C

(1)

Stresses beyond those listed under

“absolute maximum ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under

“recommended operating

conditions

” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

All voltage levels are with respect to GND.

RECOMMENDED OPERATING CONDITIONS

PARAMETER

MIN

NOM

MAX

UNIT

Supply voltage

3

3.3

3.6

V

0

V

0

V

High-level input voltage, signal-ended receiver

2

V

Low-level input voltage, signal-ended receiver

0.8

V

2

V

0

0.8

V

Operating free-air temperature

0

70

°C

External series, differential driver resistor

22 (-5%)

22 (+5%)

Ω

Operating (dc differential driver) high speed mode

12

Mb/s

Operating (dc differential driver) low speed mode

1.5

Mb/s

Common mode, input range, differential receiver

0.8

2.5

V

0

25

ns

0

115

°C

(1)

Applies for input and bidirectional buffers.

(2)

Applies for output and bidirectional buffers.

(3)

These junction temperatures reflect simulated conditions. Absolute maximum junction temperature is 150

°C. The customer is

responsible for verifying junction temperature.

Copyright

© 2000–2011, Texas Instruments Incorporated

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