beautypg.com

Adv ance informa t ion, Tms320 second generation digital signal processors, Recommended operating conditions – Texas Instruments TMS320 User Manual

Page 21

background image

High-level input voltage

Low-level input voltage

V

IL

V

IH

TMS320 SECOND GENERATION

DIGITAL SIGNAL PROCESSORS

SPRS010B — MAY 1987 — REVISED NOVEMBER 1990

POST OFFICE BOX 1443

HOUSTON, TEXAS 77001

21

absolute maximum ratings over specified temperature range (unless otherwise noted)†

Supply voltage range, V

CC

-- 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range

-- 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output voltage range

-- 0.3 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous power dissipation

2 W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range

0C to 70C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

-- 55C to 150C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only, and

functional operation of the device at these or any other conditions beyond those indicated in the “Recommended Operating Conditions” section of

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

All voltage values are with respect to V

SS

.

recommended operating conditions

MIN

NOM

MAX

UNIT

V

CC

Supply voltage

4.75

5

5.25

V

V

SS

Supply voltage

0

V

All inputs except CLKIN

2

V

CC

+ 0.3

V

CLKIN

2.4

V

CC

+ 0.3

V

All inputs except CLKIN

-- 0.3

0.8

V

CLKIN

-- 0.3

0.8

V

I

OH

High-level output current

300

A

I

OL

Low-level output current

2

mA

T

A

Operating free-air temperature (see Notes 1 and 2)

0

70

C

NOTES: 1. Case temperature (T

C

) must be maintained below 90C.

2. R

JA

= 36C/Watt, R

JC

= 6C/Watt.

electrical characteristics over specified free-air temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

§

MAX

UNIT

V

OH

High-level output voltage

V

CC

= MIN, I

OH

= MAX

2.4

3

V

V

OL

Low-level output voltage

V

CC

= MIN, I

OL

= MAX

0.3

0.6

V

I

Z

Three-state current

V

CC

= MAX

--20

20

A

I

I

Input current

V

I

= V

SS

to V

CC

--10

10

A

T

A

= 0C, V

CC

= MAX, f

x

= MAX

360

mA

I

CC

Supply current

T

A

= 25C, V

CC

= MAX, f

x

= MAX

250

mA

T

C

= 90C, V

CC

= MAX, f

x

= MAX

285

mA

C

I

Input capacitance

15

pF

C

O

Output capacitance

15

pF

§

All typical values for I

CC

are at V

CC

= 5 V, T

A

= 25C.

This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These

circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,

Method 3015; however, it is advised that precautions should be taken to avoid application of any voltage higher than maximum-rated

voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device

should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level, preferably either

V

CC

or ground. Specific guidelines for handling devices of this type are contained in the publication Guidelines for Handling

Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.

ADV

ANCE

INFORMA

T

ION