TMS320C44

DIGITAL SIGNAL PROCESSOR

SPRS031B – AUGUST 1994 – REVISED DECEMBER 1995

18

POST OFFICE BOX 1443

– 0.3 V to 7 V

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Input voltage range

– 0.3 V to 7 V

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Output voltage range

– 0.3 V to 7 V

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0

°C to 85°C

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

– 55

°C to 150°C

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† 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.

NOTE 5: All voltage values are with respect to VSS.

recommended operating conditions

MIN

TYP‡

MAX

UNIT

VDD

Supply voltage (DDVDD, etc.)

4.75

5

5.25

V

X2 / CLKIN

2.6

VDD + 0.3§

VIH

High-level input voltage

CSTRB and CRDY pins

2.4

VDD + 0.3§

V

All other pins

2

VDD + 0.3§

VIL

Low-level input voltage

– 0.3§

0.8

V

IOH

High-level output current

– 300

µA

IOL

Low-level output current

2

mA

TC

Operating case temperature

0

85

°C

‡ All typical values are at VDD = 5 V, TA (air temperature)= 25°C.

§ This parameter is characterized but not tested.

electrical characteristics over recommended ranges of supply voltage and operating case

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS¶

MIN

TYP#

MAX

UNIT

VOH

High-level output voltage

VDD = MIN,

IOH = MAX

2.4

3

V

VOL

Low-level output voltage

VDD = MIN,

IOL = MAX

0.3

0.6

V

IZ

High-impedance current

VDD = MAX

–20

20

µA

X2 / CLKIN only

–30

30

II

Input current

Inputs with internal pullups

(see Note 6)

VI = VSS to VDD

– 400

20

µA

All others

–10

10

ICC

Supply current

TA = 25 °C,

VDD = MAX,

f = MAX (see Note 7)

’320C44-40

’320C44-50

350

850

mA

CC

y

fx = MAX (see Note 7)

’320C44-60

350

950

CI

Input capacitance

15||

pF

Co

Output capacitance

15||

pF

¶ For conditions shown as MIN / MAX, use the appropriate value specified under recommended operating conditions.

# All typical values are at VDD = 3.3 V, TA (air temperature) = 25°C.

|| This parameter is specified by design but not tested.

NOTES:

6. Pins with internal pullup devices: TDI, TCK, TMS. Pin with internal pulldown device: TRST.

7. fx is the input clock frequency. The maximum value (max) for the ’320C44-40, ’320C44-50, and ’320C44-60 is 40, 50 and 60 MHz,

respectively.