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HT45F77 Datasheet(PDF) 18 Page - Holtek Semiconductor Inc

Part # HT45F77
Description  Body Fat Scale Flash MCU
PDF  203 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F77 Datasheet(HTML) 18 Page - Holtek Semiconductor Inc

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Rev. 1.20
18
De�e��e� 1�� 201�
Rev. 1.20
19
De�e��e� 1�� 201�
HT45F77
Body Fat Scale Flash MCU
HT45F77
Body Fat Scale Flash MCU
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
fADO
ADC Output Data Rate
─
fMCLK=�.8MHz
FLMS[2:0]=000� ADC
CLK=fMCLK/30
5
─
�25
Hz
fMCLK=�.8MHz
FLMS[2:0]=010� ADC
CLK=fMCLK/12
12
─
15�3
VREF+
Refe�en�e Input Voltage
─
VREFS=1� VRBUFP=0
and VRBUFN=0
0.9�
1.25
2.20
V
VREF-
0
0
1.00
VREF
─
VREF= (VREF+) - (VREF-)
0.9�
1.25
1.��
PGA
VDI+� VDI-
A�solute/Co��on Input Voltage
─
─
0.�
─
AVDD-1.1
V
ΔDI±
Diffe�ential Input Voltage Range
─
Gain = PGS×AGS
ΔVR-
/Gain
─
ΔVR+
/Gain
V
TCPGA
Gain Te�pe�atu�e D�ift
─
Ta=-�0°C~85°C
─
5
─
Pp�/
°C
Temperature Sensor
TCS
Senso� Te�pe�atu�e D�ift
─
Ta=-�0°C~85°C
ΔVR=1.25V, VGS[1:0]=00
(Gain=1)� VRBUFP=0 and
VRBUFN=0
─
175
─
μV/
°C
Effective Number of Bits (ENOB)
AVDD=3.3V� VREF=1.25V� fMCLK=�.8MHz� FLMS[2:0]=000
DATA RATE
(SPS)
PGA Gain
1
2
4
8
16
32
64
128
5
19.7
19.8
19.�
19.7
19.7
19.�
19.2
18.�
10
19.�
19.3
19.3
19.3
19.3
19.1
18.7
18.1
20
19.0
18.8
18.7
18.9
18.8
18.�
18.2
17.5
39
18.�
18.3
18.3
18.3
18.3
18.1
17.7
17.0
78
18.1
17.9
18.0
17.9
17.9
17.�
17.2
1�.5
15�
17.�
17.�
17.�
17.�
17.3
17.1
1�.�
15.9
313
15.8
15.8
15.9
15.8
15.9
15.9
15.8
15.3
�25
1�.1
1�.0
1�.0
1�.1
1�.1
1�.0
1�.1
1�.�
AVDD=3.3V� VREF=1.25V� fMCLK=�.8MHz� FLMS[2:0]=010
DATA RATE
(SPS)
PGA Gain
1
2
4
8
16
32
64
128
12
19.�
18.8
18.7
18.8
18.8
18.7
18.9
18.1
2�
19.0
18.3
18.3
18.3
18.3
18.2
17.9
17.3
�9
18.5
17.8
17.8
17.8
17.9
17.7
17.�
1�.8
98
18.2
18.2
18.1
18.2
18.1
17.8
17.2
1�.�
195
17.9
17.8
17.8
17.8
17.�
17.3
1�.7
15.9
391
17.�
17.2
17.2
17.2
17.1
1�.8
1�.2
15.�
781
1�.2
1�.1
1�.1
1�.1
1�.1
15.9
15.5
1�.8
15�3
1�.5
1�.5
1�.5
1�.�
1�.5
1�.5
1�.3
1�.0



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