Rev. 1.71
16
April 11, 2017
Rev. 1.71
17
April 11, 2017
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
HT66F002/HT66F0025/HT66F003/HT66F004
Cost-Effective A/D Flash MCU with EEPROM
A.C. Characteristics
Ta = 25°C
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
V
DD
Condition
f
CPU
Operating Clock
2.2~5.5V
—
DC
—
8
MHz
f
HIRC
System Clock (HIRC)
3V/5V
Ta = 25°C
-2%
8
+2% MHz
3V/5V
Ta = 0°C to 70°C
-5%
8
+5% MHz
2.2V~5.5V Ta = 0°C to 70°C
-8%
8
+8% MHz
2.2V~5.5V Ta = -40°C to 85°C
-12%
8
+12% MHz
f
LIRC
System Clock (LIRC)
2.2V~5.5V Ta = -40°C to 85°C
8
32
50
kHz
t
TIMER
xTCKn, xTPnI Input Pulse Width
—
—
0.3
—
—
μs
t
RES
External Reset Low Pulse Width
—
—
10
—
—
μs
t
INT
Interrupt Pulse Width
—
—
0.3
—
—
μs
t
EERD
EEPROM Read Time
—
—
—
2
4
t
SYS
t
EEWR
EEPROM Write Time
—
—
—
2
5
ms
t
SST
System Start-up Timer Period
(Wake-up from HALT,
f
SYS
off at
HALT state)
—
f
SYS
=HIRC
16
—
—
t
SYS
f
SYS
=LIRC
2
—
—
t
RSTD
System Reset Delay Time
(Power On Reset, LVR reset, WDT
S/W reset(WDTC)
—
—
25
50
100
ms
System Reset Delay Time
(RES reset, WDT normal reset)
—
—
8.3
16.7 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.