ST62T42B ST Microelectronics, ST62T42B Datasheet - Page 58

• Manufacturer Part Number: ST62T42B
• Description: 8-BIT OTP/EPROM MCU WITH LCD DRIVER / EEPROM AND A/D CONVERTER
• Manufacturer: ST Microelectronics

ST62T42B/E42B
7.2 RECOMMENDED OPERATING CONDITIONS
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
2. An oscillator frequency above 1MHz is recommended for reliable A/D results.
Figure 29. Maximum Operating FREQUENCY (Fmax) Versus SUPPLY VOLTAGE (V
The shaded area is outside the recommended operating range; device functionality is not guaranteed under these conditions.
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Symbol
A/D conversion. For a -1mA injection, a maximum 10 K is recommanded.
f
V
I
OSC
I
T
INJ+
INJ-
DD
A
Operating Temperature
Operating Supply Voltage
Oscillator Frequency
Pin Injection Current (positive)
Pin Injection Current (negative) V
8
7
6
5
4
3
2
1
2.5
Maximum FREQU ENCY (MHz)
Parameter
FUNCT IONALITY IS NOT
GUARANTEE D IN
THIS AREA
3
2)
SUPPLY VOLTAGE (V
3.5
6 Suffix Version
1 Suffix Version
f
fosc= 8MHz
V
V
V
OSC
DD
DD
DD
DD
Test Condition s
= 4.5 to 5.5V
= 4.5 to 5.5V
= 3V
= 4.5V
= 4MHz
4
4.5
DD
)
5
Min.
-40
3.0
4.5
0
0
0
5.5
Value
Typ.
6
Max.
6.0
6.0
4.0
8.0
85
70
+5
-5
DD
)
MHz
Unit
mA
mA
V
C