ST6280B Datasheet, PDF (69/78 Pages) STMicroelectronics – 8-BIT OTP/EPROM MCU WITH LCD DRIVER EEPROM AND A/D CONVERTER

ST62T80B/E80B
6.2 RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ.
Max.
T_A Operating Temperature
6 Suffix Version
1 Suffix Version
-40
0
85
70
°C
V_DD Operating Supply Voltage
f_OSC = 2MHz
fosc= 8MHz
3.0
4.5
6.0
6.0
V
f_OSC Oscillator Frequency²⁾
V_DD = 3V
V_DD = 4.5V
0
0
I_INJ+ Pin Injection Current (positive) V_DD = 4.5 to 5.5V
I_INJ- Pin Injection Current (negative) V_DD = 4.5 to 5.5V
2.0
8.0
MHz
+5
mA
-5
mA
Notes:
1. Care must be taken in case of negative current injection, where adapted impedance must be respected on analog sources to not affect the
A/D conversion. For a -1mA injection, a maximum 10 KΩ is recommanded.
2. An oscillator frequency above 1MHz is recommended for reliable A/D results.
Figure 34. Maximum Operating FREQUENCY (Fmax) Versus SUPPLY VOLTAGE (V_DD)
Maximum FREQUENCY (MHz)
8
FUNCTIONALITY IS NOT
GUARANTEED IN
7
THIS AREA
6
5
4
3
2
1
2.5
3
3.5
4
4.5
5
5.5
6
SUPPLY VOLTAGE (V_DD)
The shaded area is outside the recommended operating range; device functionality is not guaranteed under these conditions.
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