Datasheet
SCANSTA476
www.ti.com
SNLS171G –JANUARY 2005–REVISED APRIL 2013
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)(2)
Supply Voltage V
DD
−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
(3)
±10 mA
ESD Susceptibility Human Body Model 8000V
Machine Model >250V
Soldering Temperature Refer to AN-1187 (SNOA401)
Junction Temperature +150°C
Storage Temperature −65°C to +150°C
Thermal Resistance, θ
JA
42°C/W
Thermal Resistance, θ
JC
14.3°C/W
(1) Absolute maximum ratings are limiting values, to be applied individually, and beyond which the serviceability of the circuit may be
impaired. Functional operability under any of these conditions is not implied. Exposure to maximum ratings for extended periods may
affect device reliability.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/ Distributors for availability and specifications.
(3) Except power supply pins.
Recommended Operating Conditions
Operating Temperature Range −40°C ≤ T
A
≤ +85°C
V
DD
Supply Voltage +2.7V to +5.5V
Digital Input Pins Voltage Range +0V to V
DD
Analog Input Pins Voltage Range
(1)
+0V to V
REF
(1) For valid measurements, the analog V
IN
< V
REF
≤ V
DD
.
SCANSTA476 Electrical Characteristics
The following specifications apply for V
DD
= +2.7V to 5.5V, f
TCK
= 20 MHz, unless otherwise noted.
Symbol Parameter Conditions Typical Limits Units
POWER SUPPLY CHARACTERISTICS
2.7 V (min)
V
DD
Supply Voltage −40°C ≤ T
A
≤ 85°C
5.5 V (max)
Normal Mode (Static) V
DD
= +2.7V to +5.5V, 3.5 5.0 mA
I
DD
V
DD
= +2.7V to +5.5V,
Normal Mode (Operational) 5.0 mA (max)
f
TCK
= 1 MSPS
Power Consumption, Normal Mode
P
D
V
DD
= +5.5V, f
TCK
= 1 MSPS 27.5 mW (max)
(Operational)
ANALOG INPUT CHARACTERISTICS (A0-A7)
V
IN
Analog Input Range V
REF
≤ V
DD
0 to V
REF
V
V
REF
Reference Voltage Range V
DD
V
I
DCL
DC Leakage Current 0.1 ±10 µA (max)
V
DD
= +2.7V 1 7.5
V
MEAS
Analog Input Measurement Accuracy mV
V
DD
= +5.5V 2 15
DIGITAL INPUT CHARACTERISTICS (TDI, TMS, TCK, TRST)
V
DD
= +2.7V to +3.6V 2.0
V
IH
Input High Voltage V (min)
V
DD
= +5.5V 2.1
V
IL
Input Low Voltage V
DD
= +5V 0.8 V (max)
V
CL
Input Clamp Voltage I
CL
= -18mA -0.8 -1.5 V (max)
I
IN
Input Current V
IN
= 0V or V
DD
0.2 ±10 µA (max)
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