HT45FM2C View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
'HT45FM2C' PDF : 171 Pages View PDF
HT45FM2C
Preliminary
Brushless DC Motor Flash Type 8-Bit MCU
A.C. Characteristics
Ta=25˚C
Symbol
Parameter
fSYS
System Clock
Test Conditions
VDD
Conditions
—
4.5V~5.5V
Ta=-40˚C~85˚C
Min. Typ. Max. Unit
32 — 20000 kHz
-12% 20 +4% MHz
fHIRC
System Clock (HIRC)
4.5V~5.5V Ta=-20˚C~85˚C
Ta=25˚C
-9% 20 +4% MHz
-2% 20 +2% MHz
fTIMER
tINT
tLVR
tLVD
tLVDS
tEERD
tEEWR
tSST
Timer Input Pin Frequency
Interrupt Pulse Width
Low Voltage Width to Reset
Low Voltage Width to Interrupt
LVDO stable time
EEPROM Read Time
EEPROM Write Time
System Start-up Timer Period
(Wake-up from HALT)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
fSYS=HIRC
——
1
fSYS
1
—
—
tSYS
120 240 480 μs
20 45
90 μs
15 —
— μs
—
45
90 μs
—
2
4 ms
— 15~16 — tSYS
System Reset Delay Time
(Power On Reset)
—
tRSTD
System Reset Delay Time
(Any Reset except Power On
—
Reset)
—
25 50 100 ms
—
8.3 16.7 33.3 ms
Note: 1. tSYS=1/fSYS
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.
Rev. 1.10
15
May 30, 2012
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