Rev. 1.00
14
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Rev. 1.00
15
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HT66FM5440
Brushless DC Motor A/D Flash MCU
HT66FM5440
Brushless DC Motor A/D Flash MCU
A.C. Characteristics
Ta=�5°C
, unless otherwise specified
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
f
SYS
System Clock (HIRC)
4.5V~
5.5V f
SYS
=f
HIRC
=16MHz
—
16
—
MHz
f
HIRC
High Speed Internal RC Oscillator
Freq�ency (HIRC)
5V
Ta=�5°C
-1.0% 16 +1.0%
MHz
Ta= -40°C~�5°C
-�.0% 16 +�.0%
4.5V~
5.5V
Ta=�5°C
-�.5% 16 +�.5%
MHz
Ta= -40°C~�5°C
-3.0% 16 +3.0%
f
LIRC
Low Speed Internal RC Oscillator
Freq�ency (LIRC)
4.5V~
5.5V
Ta=�5°C
-5%
3�
+5%
kHz
Ta= -40°C~�5°C
-10%
3�
+10%
t
START
LIRC Start Up Time
—
—
—
—
100
μs
f
I�C
I
�
C Standard Mode (100kHz) f
SYS
Freq�ency
—
No clock debo�nce
�
—
—
MHz
� system clock debo�nce
4
—
—
4 system clock debo�nce
�
—
—
I
�
C Fast Mode (400kHz) f
SYS
Freq�ency
—
No clock debo�nce
5
—
—
MHz
� system clock debo�nce
10
—
—
4 system clock debo�nce
�0
—
—
t
TCK
TM Capt�re Inp�t Pin Minim�m P�lse
Width
—
—
0.�
—
—
μs
t
TPI
TM Capt�re Inp�t Pin Minim�m P�lse
Width
—
—
—
4
6
ms
t
INT
External Interr�pt Minim�m P�lse Width
—
—
1
5
10
t
SYS
t
SST
System Start-�p Timer Period
(Wake-�p from HALT Stat�s)
—
f
SYS
=f
HIRC
—
15~
16
—
t
SYS
t
RSTD
System Reset Delay Time
(Power-on Reset)
—
—
�5
50
100
ms
System Reset Delay Time
(Any Reset except Power On Reset)
—
—
�.3
16.� 33.3
ms
Note: 1. t
SYS
=1/f
SYS
2. 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.
LVR/LVD Electrical Characteristics
Ta=�5°C
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Conditions
V
LVR
Low Voltage Reset Voltage
— LVR enable� voltage select 3.�V
-5%
3.�
+5%
V
V
LVD
Low Voltage Detection Voltage
— LVD enable� voltage select 4.0V
-5%
4.0
+5%
V
I
LVRLVDBG
Operating C�rrent
3V LVD enable� LVR enable�
VBGEN=0
—
13
16
μA
5V
—
�1
�3
μA
3V LVD enable� LVR enable�
VBGEN=1
—
14
1�
μA
5V
—
�0
��
μA
I
LVR
Additional C�rrent for LVR Enable
— LVD disable� VBGEN=0
—
—
�6
μA
I
LVD
Additional C�rrent for LVD Enable
— LVR disable� VBGEN=0
—
—
�6
μA
t
LVDS
LVDO Stable Time
— For LVR enable� VBGEN=0�
LVD off → on
—
—
15
μs
— For LVR disable� VBGEN=0�
LVD off → on
—
—
150
μs