Holtek HT66F0175 - A.C. Characteristics

Rev. 1.50 18 August 28, 2017 Rev. 1.50 19 August 28, 2017
HT66F0175/HT66F0185
A/D Flash MCU with EEPROM
HT66F0175/HT66F0185
A/D Flash MCU with EEPROM
A.C. Characteristics
Ta=25°C
Symbol Parameter
Test Condition
Min. Typ. Max. Unit
V
DD
Condition
f
SYS
System Clock (HXT)
2.2V~5.5V f
SYS
=f
HXT
=8MHz — 8 — MHz
2.7V~5.5V f
SYS
=f
HXT
=12MHz — 12 — MHz
4.5V~5.5V f
SYS
=f
HXT
=16MHz — 16 — MHz
4.5V~5.5V f
SYS
=f
HXT
=20MHz — 20 — MHz
System Clock (HIRC)
2.4V~5.5V f
SYS
=f
HIRC
=8MHz — 8 — MHz
2.7V~5.5V f
SYS
=f
HIRC
=12MHz — 12 — MHz
4.5V~5.5V f
SYS
=f
HIRC
=16MHz — 16 — MHz
System Clock (LXT) 2.2V~5.5V f
SYS
=f
LXT
=32.768kHz — 32.768 — kHz
System Clock (LIRC) 2.2V~5.5V f
SYS
=f
LIRC
=32kHz — 32 — kHz
f
LIRC
Low Speed Internal RC oscillator (LIRC)
5V Ta=25°C -10% 32 +10% kHz
2.2V~5.5V Ta=-40°C to 85°C -50% 32 +60% kHz
t
TCK
TCKn pin Minimum Input Pulse Width — — 0.3 — — μs
t
INT
Interrupt Pin Minimum Input Pulse Width — — 10 — — μs
t
SST
System Start-up Timer Period
(Wake-up from power down mode and
f
SYS
off)
— f
SYS
=f
HXT
off 128 — — t
HXT
— f
SYS
=f
HIRC
off 16 — — t
HIRC
— f
SYS
=f
LXT
off 128 — — t
LXT
— f
SYS
=f
LIRC
off 2 — — t
LIRC
System Start-up Timer Period
(Wake-up from power down mode)
— f
SYS
on 2 — — t
SYS
t
RSTD
System reset delay time
(Power-on reset, LVR hardware reset,
LVRC/WDTC software reset)
— — 25 50 100 ms
System reset delay time
(WDT hardware reset)
— — 8.3 16.7 33.3 ms
t
EERD
EEPROM Read Time — — — — 4 t
SYS
t
EEWR
EEPROM Write Time — — — 2 4 ms
Note:t
SYS
=1/f
SYS