TMS320C31, TMS320LC31

DIGITAL SIGNAL PROCESSORS

SPRS035B – MARCH 1996 – REVISED JANUARY 1999

11

POST OFFICE BOX 1443

’C31

’LC31

– 0.3 V to 7 V

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

– 0.3 V to 5 V

. . . . . . . . . .

– 0.3 V to 7 V

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

– 0.3 V to 5 V

. . . . . . . . . .

– 0.3 V to 7 V

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

– 0.3 V to 5 V

. . . . . . . . . .

Continuous power dissipation (worst case) (see Note 5)

2.6 W

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

(for TMS320C31-80)

850 mW

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

(for TMS320LC31-33)

PQL (commercial)

0

°C to 85°C

. . . . . . . .

0

°C to 85°C

. . . . . . . . . . .

PQA (industrial)

– 40

°C to 125°C

. . . . . . .

– 55

°C to 150°C

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

– 55

°C to 150°C

. . . . . . .

† 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.

NOTES:

4. All voltage values are with respect to VSS.

5. Actual operating power is less. This value was obtained under specially produced worst-case test conditions for the TMS320C31,

which are not sustained during normal device operation. These conditions consist of continuous parallel writes of a checkerboard

pattern to both primary and extension buses at the maximum rate possible. See normal (ICC) current specification in the electrical

characteristics table and also read

Calculation of TMS320C30 Power Dissipation Application Report (literature number SPRA020).

recommended operating conditions (see Note 6)

’C31

’LC31

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VDD

Supply voltage (DVDD, etc.)

4.75

5

5.25

3.13

3.3

3.47

V

VSS

Supply voltage (CVSS, etc.)

0

0

V

VIH

High-level input voltage

2

VDD + 0.3‡

1.8

VDD + 0.3‡

V

VIL

Low-level input voltage

– 0.3‡

0.8

– 0.3‡

0.6

V

IOH

High-level output current

– 300

– 300

µA

IOL

Low-level output current

2

2

mA

TC

Operating case temperature (commercial)

0

85

0

85

°C

Operating case temperature (industrial)

– 40

125

°C

VTH

High-level input voltage for CLKIN

2.6

VDD + 0.3‡

2.5

VDD + 0.3‡

V

‡ These values are derived from characterization and not tested.

NOTE 6: All voltage values are with respect to VSS. All input and output voltage levels are TTL-compatible. CLKIN can be driven by a CMOS

clock.