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ST90158 - ELECTRICAL CHARACTERISTICS
10 ELECTRICAL CHARACTERISTICS
This product contains devices to protect the inputs
against damage due to high static voltages, how-
ever it is advisable to take normal precaution to
avoid application of any voltage higher than the
specified maximum rated voltages.
For proper operation it is recommended that VI
and VO be higher than VSS and lower than VDD.
Reliability is enhanced if unused inputs are con-
nected to an appropriate logic voltage level (VDD
or VSS).
Power Considerations.The average chip-junc-
tion temperature, TJ, in Celsius can be obtained
from:
TJ=TA + PD x RthJA
Where: TA =
Ambient Temperature.
RthJA = Package thermal resistance
(junction-to ambient).
PD =PINT +PPORT.
PINT =IDD xVDD (chip internal power).
PPORT =Port power dissipation
determined by the user)
ABSOLUTE MAXIMUM RATINGS
Note: Stresses above those listed as “absolute maximum ratings“ may cause permanent damage to the device. This is a stress rating only
and functional operation of the device at these conditions is not implied. Exposure to maximum rating conditions for extended periods may
affect device reliability. All voltages are referenced to VSS
PACKAGE THERMAL CHARACTERISTICS
RECOMMENDED OPERATING CONDITIONS
Note 1. Operating temperature 0-70
°C
Note 2. 1MHz when A/D is used
Symbol
Parameter
Value
Unit
VDD
Supply Voltage
– 0.3 to 7.0
V
AVDD
A/D Converter Analog Reference
VDD -0.3 to VDD + 0.3
V
AVSS
A/D Converter VSS
VSS
VI
Input Voltage
– 0.3 to VDD +0.3
V
VAIN
Analog Input Voltage (A/D Converter)
VSS -0.3 to VDD + 0.3
VSSA -0.3 to VDDA + 0.3
V
VO
Output Voltage
– 0.3 to VDD +0.3
V
TSTG
Storage Temperature
– 55 to + 150
°C
IINJ
Pin Injection Current Digital and Analog Input
-5 to +5
mA
Maximum Accumulated Pin injection Current in the device
-50 to +50
mA
Symbol
Parameter
Package
Value
Unit
RthJA
Thermal junction to ambient
TQFP80
40
°C/W
PQFP80
40
Symbol
Parameter
Value
Unit
Min.
Max.
TA
Operating Temperature
-40
85
°C
VDD
Operating Supply Voltage (ROM)
Operating Supply Voltage (OTP)
Operating Supply Voltage (OTP Low Voltage version)
2.7
4.5
2.85(1)
5.5
3.15(1)
V
fINTCLK
Internal Clock Frequency @ 4.5V - 5.5V
Internal Clock Frequency @ 2.7V - 3.3V (ROM)
Internal Clock Frequency @ 2.85V - 3.15V (OTP Low Voltage version)
0(2)
16
14
MHz