SCANSTA476 Datasheet, PDF (3/12 Pages) National Semiconductor (TI) – Eight Input IEEE 1149.1 Analog Voltage Monitor

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
Voltage on Any Analog Pin to GND
Voltage on Any Digital Pin to GND
Input Current at Any Pin ⁽³⁾
−0.3V to +6.5V
−0.3V to V_DD+0.3V
-0.3V to V_DD+0.3V
±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
Thermal Resistance, θ_JC
42°C/W
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
V_DD Supply Voltage
Digital Input Pins Voltage Range
Analog Input Pins Voltage Range ⁽¹⁾
(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
POWER SUPPLY CHARACTERISTICS
V_DD
Supply Voltage
−40°C ≤ T_A ≤ 85°C
Normal Mode (Static)
V_DD = +2.7V to +5.5V,
3.5
I_DD
Normal Mode (Operational)
V_DD = +2.7V to +5.5V,
f_TCK = 1 MSPS
P_D
Power Consumption, Normal Mode
(Operational)
V_DD = +5.5V, f_TCK = 1 MSPS
ANALOG INPUT CHARACTERISTICS (A0-A7)
V_IN
Analog Input Range
V_REF ≤ V_DD
V_REF
Reference Voltage Range
I_DCL
DC Leakage Current
0.1
V_MEAS Analog Input Measurement Accuracy
V_DD = +2.7V
V_DD = +5.5V
1
2
DIGITAL INPUT CHARACTERISTICS (TDI, TMS, TCK, TRST)
V_IH
Input High Voltage
V_DD = +2.7V to +3.6V
V_DD = +5.5V
V_IL
Input Low Voltage
V_DD = +5V
V_CL
Input Clamp Voltage
I_CL = -18mA
-0.8
I_IN
Input Current
V_IN = 0V or V_DD
0.2
−40°C ≤ T_A ≤ +85°C
+2.7V to +5.5V
+0V to V_DD
+0V to V_REF
Limits
Units
2.7
V (min)
5.5
V (max)
5.0
mA
5.0
mA (max)
27.5
mW (max)
0 to V_REF
V_DD
±10
7.5
15
V
V
µA (max)
mV
2.0
V (min)
2.1
0.8
V (max)
-1.5
V (max)
±10
µA (max)
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