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Rev. 2.50
24
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Rev. 2.50
25
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HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
HT66F20/HT66F30/HT66F40/HT66F50/HT66F60
HT66FU30/HT66FU40/HT66FU50/HT66FU60
A/D Flash MCU with EEPROM
Symbol
Parameter
Test Conditions
Min.
Typ.
Max. Unit
V
DD
Conditions
f
LIRC
System Clock (LIRC)
5V
Ta=25°C
-�0%
32
+�0% kHz
2.2V~5.5V Ta=-40°C~85°C
-50%
32
+60% kHz
f
TIMER
Timer Inp�t Pin Freq�ency
—
—
—
—
�
f
SYS
t
RES
External Reset Low P�lse Width
—
—
�
—
—
μs
t
INT
Interr�pt P�lse Width
—
—
�
—
—
t
SYS
t
LVR
Low Voltage Width to Reset
—
—
�20
240
480
μs
t
LVD
Low Voltage Width to Interr�pt
—
—
20
45
90
μs
t
LVDS
LVDO stable time
—
—
�5
—
—
μs
t
BGS
V
BG
T�rn on Stable Time
—
—
200
—
—
μs
t
EERD
EEPROM Read Time
—
—
—
45
90
μs
t
EEWR
EEPROM Write Time
—
—
—
2
4
ms
t
SST
System Start-�p Timer Period
(Wake-�p from HALT)
—
f
SYS
=HXT or LXT
—
�024
—
t
SYS
f
SYS
=ERC or HIRC
—
�5~�6
—
f
SYS
=LIRC
—
�~2
—
Note: 1. t
SYS
=1/f
SYS
2. * For f
ERC
, as the resistor tolerance will influence the frequency a precision resistor is recommended.
3. To maintain the accuracy of the internal HIRC oscillator frequency, a 0.1μF decoupling capacitor should
be connected between VDD and VSS and located as close to the device as possible.
A/D Converter Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
AV
DD
A/D Converter Operating Voltage
—
—
2.�
—
5.5
V
V
ADI
A/D Converter Inp�t Voltage
—
—
0
—
VREF
V
V
REF
A/D Converter Reference Voltage
—
—
2
—
AV
DD
V
DNL
Differential Non-linearity
5V t
AD
=�.0
μs
—
±�
±2
LSB
INL
Integral Non-linearity
5V t
AD
=�.0
μs
—
±2
±4
LSB
I
ADC
Additional Power Cons�mption if
A/D Converter is Used
3V No load� t
AD
=0.5
μs
—
0.90
�.35
mA
5V No load� t
AD
=0.5
μs
—
�.20
�.80
mA
t
ADCK
A/D Converter Clock Period
—
—
0.5
—
�0
μs
t
ADC
A/D Conversion Time
(Incl�de Sample and Hold Time)
—
�2-bit ADC
—
�6
—
t
ADCK
t
ADS
A/D Converter Sampling Time
—
—
—
4
—
t
ADCK
t
ON2ST
A/D Converter On-to-Start Time
—
—
2
—
—
μs