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HT45F77 Datasheet(PDF) 17 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) 17 Page - Holtek Semiconductor Inc

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Rev. 1.20
1�
De�e��e� 1�� 201�
Rev. 1.20
17
De�e��e� 1�� 201�
HT45F77
Body Fat Scale Flash MCU
HT45F77
Body Fat Scale Flash MCU
LDO + PGA + ADC + VCM Electrical Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VDD
Conditions
VIN
LDO Supply Voltage
─
─
2.7
─
5.5
V
IVOREG
LDO Ope�ating Cu��ent
─
No load� LDOVS[1:0]=00
─
�00
520
μA
VOREG
LDO Output Voltage
(IL=0.1�A� VIN>VOREG+0.2V)
─
LDOVS[1:0]=00
-5%
2.�
+5%
V
─
LDOVS[1:0]=01
2.�
─
LDOVS[1:0]=10
2.9
─
LDOVS[1:0]=11
3.3
D�opout Voltage
(IL=10�A)
─
LDOVS[1:0]=00
─
─
100
�V
─
LDOVS[1:0]=01
─
─
130
─
LDOVS[1:0]=10
─
─
180
─
LDOVS[1:0]=11
─
─
200
Te�pe�atu�e
D�ift
LDOVS[1:0]=00�
IL=100μA
─
Ta=-�0°C~85°C
─
─
30
Pp�/
°C
VOREG Voltage
D�ift
2.7V~
5.5V
─
-0.3
─
+0.3
%/V
ΔVLOAD
Load Regulation
2.7V
Load =0�A~10�A�
MCU HALT� LDO=2.�V�
LDO ena�le� Othe�
fun�tion disa�le
─
25
50
�V
VCM
VCM Output Voltage
─
VCMS=0� AVDD=3.3V�
No load
-5%
1.05
+5%
V
VCMS=1� AVDD=3.3V�
No load
-5%
1.25
+5%
V
IL=200μA
0.98
–
1.02
V
Te�pe�atu�e D�ift
─
IL=10μA, Ta=-�0°C~85°C
─
─
200
Pp�/
°C
AVDD Voltage D�ift
─
No load�
AVDD=2.�V~3.3V
─
100
─
µV/V
tVCM
VCM Tu�n on Sta�le Ti�e
─
─
10
─
─
�s
ICMSRC
VCM Sou��e Cu��ent
─
VCM d�op 2% of VCM
1
─
─
�A
ICMSNK
VCM Sink Cu��ent
─
VCM �aise 2% of VCM
1
─
─
�A
ADC & ADC Internal Reference Voltage (Delta-Sigma ADC)
AVDD
Supply Voltage fo� VCM� ADC�
PGA
─
─
2.�
─
3.3
V
ICM+IPGA+
IADC
Ope�ating Cu��ent fo� VCM� PGA
and ADC
─
VCM ena�le� VRBUFP=1
and VRBUFN=1
─
─
900
μA
VCM ena�le� VRBUFP=0
and VRBUFN=0
─
�00
750
VCM disa�le� VRBUFP=0
and VRBUFN=0
─
500
�50
IADSTB
Stand�y Cu��ent
─
Syste� HALT� no load
─
─
1
μA
RSAD
ADC Resolution
─
─
─
─
20
Bit
NNFC
Noise F�ee Code
─
PGA Gain=128
Data Rate=10Hz
─
15.�
─
Bit
ENOB
Effe�tive Nu��e� of Bits
─
PGA Gain=128
Data Rate=10Hz
─
18.1
─
Bit
fAD
A/D Clo�k F�equen�y (fMCLK)
─
─
─
�.8
─
MHz



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