Characteristics - Holtek HT68F Series Manual

A.C. Characteristics
Symbol Parameter
f Operating C�ock
CPU
f S�stem C�ock (HXT)
SYS
f S�stem C�ock (HIRC)
HIRC
f S�stem C�ock (ERC)
ERC
f S�stem C�ock (LXT)
LXT
f S�stem C�ock (LIRC)
LIRC
f Timer Inp�t Pin Freq�enc�
TIMER
t Externa� Reset Low P��se Width
RES
t Interr�pt P��se Width
INT
t Low Vo�tage Width to Reset
LVR
t Low Vo�tage Width to Interr�pt
LVD
t LVDO stab�e time
LVDS
t V T�rn on Stab�e Time
BGS BG
t EEPROM Read Time
EERD
t EEPROM Write Time
EEWR
S�stem Start-�p Timer Period
t
SST
(Wake-�p from HALT)
Note: 1. t =1/f
SYS SYS
2. * For f , as the resistor tolerance will influence the frequency a precision resistor is recommended.
ERC
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.
Rev. 2.10
HT68F20/HT68F30/HT68F40/HT68F50/HT68F60
HT68FU30/HT68FU40/HT68FU50/HT68FU60
Enhanced I/O Flash Type 8-Bit MCU with EEPROM
Test Conditions
V Conditions
DD
2.2V~5.5V
— 2.7V~5.5V
�.5V~5.5V
2.2V~5.5V
— 2.7V~5.5V
�.5V~5.5V
3V/5V Ta=25˚C
3V/5V Ta=25˚C
5V Ta=25˚C
3V/5V Ta=0~70˚C
3V/5V Ta=0~70˚C
5V Ta=0~70˚C
2.2V~3.6V Ta=0~70˚C
3.0V~5.5V Ta=0~70˚C
2.2V~3.6V Ta=0~70˚C
3.0V~5.5V Ta=0~70˚C
3.0V~5.5V Ta=0~70˚C
2.2V~3.6V Ta=-40˚C~85˚C
3.0V~5.5V Ta=-40˚C~85˚C
2.2V~3.6V Ta=-40˚C~85˚C
3.0V~5.5V Ta=-40˚C~85˚C
3.0V~5.5V Ta=-40˚C~85˚C
5V Ta=25˚C, R=120kΩ*
5V Ta=0˚C~70˚C, R=120kΩ*
5V Ta=-40˚C~85˚C, R=120kΩ*
3.0V~5.5V Ta=-40˚C~85˚C, R=120kΩ*
2.2V~5.5V Ta=-40˚C~85˚C, R=120kΩ* -15%
—
5V Ta=25˚C
2.2V~5.5V Ta=-40˚C~85˚C
—
—
—
—
—
—
—
—
—
f =HXT or LXT
SYS
— f =ERC or HIRC
SYS
f =LIRC
SYS
2�
Min. Typ.
DC —
DC —
DC —
0.� —
0.� —
0.� —
-2% �
-2% 8
-2% 12
-5% �
-�% 8
-5% 12
-7% �
-5% �
-6% 8
-�% 8
-6% 12
-12% �
-10% �
-15% 8
-8% 8
-12% 12
-2% 8
-5% 8
-7% 8
-9% 8
8
— — 32.768
-10% 32
-50% 32
— — —
— 1 —
— 1 —
— 120 2�0
— 20 �5
— 15 —
— 200 —
— — �5
— — 2
— 102�
— 15~16
— 1~2
���� 02� 201�
Ta=25˚C
Max. Unit
8 MHz
12 MHz
20 MHz
8 MHz
12 MHz
20 MHz
+2% MHz
+2% MHz
+2% MHz
+5% MHz
+�% MHz
+3% MHz
+7% MHz
+9% MHz
+�% MHz
+9% MHz
+7% MHz
+8% MHz
+9% MHz
+�% MHz
+9% MHz
+7% MHz
+2% MHz
+6% MHz
+9% MHz
+10% MHz
+10% MHz
— kHz
+10% kHz
+60% kHz
1 f
SYS
— μs
— t
SYS
�80 μs
90 μs
— μs
— μs
90 μs
� ms
—
— t
SYS
—