TMS320VC5471GHKA datasheet(56/97 Pages) TI

56 / 97 page

Electrical Specifications

June 2001 – Revised December 2002

SPRS180C

Electrical Specifications

This section provides the absolute maximum ratings and the recommended operating conditions for the

device.

6.1

Absolute Maximum Ratings

The list of absolute maximum ratings are specified over operating case temperature. 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. All supply voltage (core and I/O) values are with respect to

VSS.

Supply voltage I/O range, DVDD

–0.5 V to 4 V

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

Supply voltage core range, CVDD

–0.5 V to 2 V

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

Input voltage range, VI

–0.5 V to 4.1 V

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

Output voltage range, VO

–0.5 V to 4.1 V

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

Operating case temperature range,

TC (Commercial)

°C to 85°C

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

TC (Industrial)

–40

°C to 85°C

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

Storage temperature range, Tstg

–65

°C to 150°C

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

6.2

Recommended Operating Conditions

MIN

NOM

MAX

UNIT

DVDD

Device supply voltage, I/O (Level shifter)†

3.3

3.6

CVDD

Device supply voltage, core†

1.71

1.8

1.95

VSS

Supply voltage, GND

VIH

High-level input voltage, I/O

0.6*DVDD

VIL

Low-level input voltage

0.3*DVDD

IOH

High-level output current

DSP_R/W, DSP_PS, DSP_IS, DSP_DS,

DSP_IOSTRB, DSP_MSTRB, DSP_A[19:0],

DSP_D[15:0],KBGPIO01/DSP_XF,

KBGPIO10/DSP_IACK,

KBGPIO14/DSP_CLKOUT

–8

All other outputs not including power/ground/DSP

signals.

–4

IOL

Low-level output current

DSP_R/W, DSP_PS, DSP_IS, DSP_DS,

DSP_IOSTRB, DSP_MSTRB, DSP_A[19:0],

DSP_D[15:0],KBGPIO01/DSP_XF,

KBGPIO10/DSP_IACK,

KBGPIO14/DSP_CLKOUT

All other outputs not including power/ground/DSP

signals.

Operating case temperature

Commercial

°C

Industrial

–40

† Texas Instrument DSPs do not require specific power sequencing between the core supply and the I/O supply. However, systems should be

designedto ensure that neither supply is powered up for extended periods of time if the other supply is below the proper operating voltage. Excessive

exposure to these conditions can adversely affect the long-term reliability of the devices. System-level concerns such as bus contention may require

supply sequencing to be implemented. In this case, the core supply should be powered up at the same time as or prior to the I/O buffers, and then

powered down after the I/O buffers.

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