ST6255C View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST6255C' PDF : 84 Pages View PDF
ST6255C ST6265C ST6265B
1. Period for which VDD has to be connected at 0V to allow internal Reset function at next power-up.
2 An oscillator frequency above 1MHz is recommended for reliable A/D results.
3. Measure performed with OSCin pin soldered on PCB, with an around 2pF equivalent capacitance.
6.5 A/D CONVERTER CHARACTERISTICS
(TA = -40 to +125°C unless otherwise specified)
Symbol
Parameter
Test Conditions
Res
ATOT
tC
ZIR
FSR
ADI
ACIN
Resolution
Total Accuracy (1) (2)
Conversion Time
Zero Input Reading
Full Scale Reading
Analog Input Current During
Conversion
fOSC > 1.2MHz
fOSC > 32kHz
fOSC = 8MHz (TA < 85°C)
fOSC = 4 MHz
Conversion result when
VIN = VSS
Conversion result when
VIN = VDD
VDD= 4.5V
Analog Input Capacitance
Min.
Value
Typ.
8
70
140
00
2
Notes:
1. Noise at VDD, VSS <10mV
2. With oscillator frequencies less than 1MHz, the A/D Converter accuracy is decreased.
Max.
±2
±4
FF
1.0
5
Unit
Bit
LSB
μs
Hex
Hex
μA
pF
6.6 TIMER CHARACTERISTICS
(TA = -40 to +125°C unless otherwise specified)
Symbol
Parameter
Test Conditions
fIN
Input Frequency on TIMER Pin
tW
Pulse Width at TIMER Pin
VDD = 3.0V
VDD >4.5V
6.7 SPI CHARACTERISTICS
(TA = -40 to +125°C unless otherwise specified)
Symbol
Parameter
Test Conditions
FCL
Clock Frequency
tSU
Set-up Time
th
Hold Time
Applied on Scl
Applied on Sin
Applied onSin
6.8 ARTIMER ELECTRICAL CHARACTERISTICS
(TA = -40 to +125°C unless otherwise specified)
Symbol
Parameter
Test Conditions
Value
Unit
Min.
Typ. Max.
-f--I-N----T- MHz
4
1
μs
125
ns
Value
Unit
Min. Typ. Max.
500 kHz
250
ns
50
ns
Value
Unit
Min
Typ Max
68/84
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