SCANSTA476 datasheet(3/7 Pages) NSC

3 / 7 page

Absolute Maximum Ratings (Note 2)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage V

−0.3V to +6.5V

Voltage on Any Analog Pin to GND

−0.3V to V

DD+0.3V

Voltage on Any Digital Pin to GND

-0.3V to V

DD+0.3V

Input Current at Any Pin (Note 4)

±10 mA

ESD Susceptibility

Human Body Model

Machine Model

8000V

>250V

Soldering Temperature

Refer to AN-1187

Junction Temperature

+150˚C

Storage Temperature

−65˚C to +150˚C

Thermal Resistance,

42˚C/W

Thermal Resistance,

14.3˚C/W

Recommended Operating

Conditions

Operating Temperature Range

−40˚C

≤ T

≤ +85˚C

DD Supply Voltage

+2.7V to +5.5V

Digital Input Pins Voltage Range

+0V to V

Analog Input Pins Voltage Range

(Note 5)

+0V to V

REF

SCANSTA476 Electrical Characteristics

The following specifications apply for V

DD = +2.7V to 5.5V, fTCK = 20 MHz, unless otherwise noted.

Symbol

Parameter

Conditions

Typical

Limits

Units

POWER SUPPLY CHARACTERISTICS

Supply Voltage

−40˚C

≤ T

≤ 85˚C

2.7

V (min)

5.5

V (max)

Normal Mode (Static)

DD = +2.7V to +5.5V,

3.5

5.0

Normal Mode (Operational)

DD = +2.7V to +5.5V,

TCK = 1 MSPS

5.0

mA (max)

Power Consumption, Normal Mode

(Operational)

DD = +5.5V, fTCK = 1 MSPS

27.5

mW (max)

ANALOG INPUT CHARACTERISTICS (A0-A7)

Analog Input Range

REF

≤ V

0toV

REF

Reference Voltage Range

DD -

0.5V to

DCL

DC Leakage Current

0.1

±10

µA (max)

MEAS

Analog Input Measurement Accuracy

DD = +2.7V

7.5

DD = +5.5V

DIGITAL INPUT CHARACTERISTICS (TDI, TMS, TCK, TRST)

Input High Voltage

DD = +2.7V to +3.6V

2.0

V (min)

DD = +5.5V

2.1

Input Low Voltage

DD = +5V

0.8

V (max)

Input Clamp Voltage

CL = -18mA

-0.8

-1.5

V (max)

Input Current

IN =0VorVDD

0.2

±10

µA (max)

ILR

Input Current

TRST, TDI, TMS only

-300

µA (max)

DIGITAL OUTPUT CHARACTERISTICS (TDO)

Output High Voltage

OH = -100 µA, 2.7V

≤ V

≤ 5.5V

DD −0.2

V (min)

OH = -4 mA, 3.0V

≤ V

≤ 5.5V

2.4

V (min)

OH = -4 mA, VDD = 2.7V

2.2

V (min)

Output Low Voltage

OL = 100 µA, 2.7V

≤ V

≤ 5.5V

0.2

V (max)

OL = 4 mA, 2.7V

≤ V

≤ 5.5V

0.4

V (max)

Output Short Circuit Current

OUT = 0V, VDD = 5.5V

-85

mA (max)

TRI-STATE Leakage Current

±10

µA (max)

Output Coding

Straight (Natural) Binary

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