ST6246 STMICROELECTRONICS [STMicroelectronics], ST6246 Datasheet - Page 64

• Manufacturer Part Number: ST6246
• Description: 8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST62T46B/E46B
6.4 AC ELECTRICAL CHARACTERISTICS
(T
Notes:
1. Period for which V
6.5 A/D CONVERTER CHARACTERISTICS
(T
Notes:
1. Noise at AV
2. Wit h oscillator frequencies less than 1MHz, the A/D Converter accuracy is decreased. .
64/72
400
Endurance EEPROM WRITE/ERASE Cycle
Retention
Symbol
Symbol
A
A
T
C
AC
A
t
T
FSR
Res
ZIR
AD
C
= -40 to +85 C unless otherwise specified)
REC
= -40 to +85 C unless otherwise specified)
WEE
OUT
TOT
t
WR
C
IN
IN
I
DD
Resolution
Total Accuracy
Conversion Time
Zero Input Reading
Full Scale Reading
Analog Input Current During
Conversion
Analog Input Capacitance
Supply Recovery Time
Minimum Pulse Width (V
RESET pin
NMI pin
EEPROM Write Time
EEPROM Data Retention
Input Capacitance
Output Capacitance
, AV
SS
DD
<10mV
has to be connected at 0V to allow internal Reset function at next power-up.
Parameter
Parameter
(1) (2)
(1)
DD
= 5V)
f
f
f
Conversion result when
V
Conversion result when
V
V
OSC
OSC
OSC
IN
IN
DD
= V
= V
= 4.5V
> 1.2MHz
> 32kHz
= 8MHz
Test Condi tions
T
T
Q
T
All Inputs Pins
All Outputs Pins
SS
DD
A
A
A
A
= 25 C
= 85 C
= 55 C
L
OT
Test Conditio ns
Acceptance
Min.
00
300,000 1 million
Min.
100
100
100
10
Value
Typ.
70
8
2
Value
Typ.
10
5
Max.
1.0
FF
5
2
4
Max.
10
20
10
10
Unit
LSB
cycles
Hex
Hex
years
Bit
pF
Unit
ms
ms
ns
pF
pF
A
s