HT46R02B データシートの表示（PDF） - Holtek Semiconductor
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HT46R02B Datasheet PDF : 71 Pages
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HT46R01B/02B/01N/02N
HT48R01B/02B/01N/02N
Ta=25°C
Symbol
Parameter
Test Conditions
VDD
Conditions
Min. Typ. Max. Unit
5V Ta=25°C, R=120kW *
-2% 4 +2% MHz
fERC
System Clock
(ERC)
5V Ta=0~70°C, R=120kW *
5V Ta= -40°C~85°C,
R=120kW *
-5% 4 +5% MHz
-7% 4 +7% MHz
2.2V~ Ta= -40°C~85°C,
5.5V R=120kW *
-11% 4 +11% MHz
fLXT
System Clock (LXT)
¾
¾
¾ 32768 ¾
Hz
fTIMER
Timer Input Frequency
(TCn)
2.2V~5.5V
¾ 3.0V~5.5V
4.5V~5.5V
0
¾ 4000 kHz
0
¾ 8000 kHz
0
¾ 12000 kHz
fLIRC
LIRC Oscillator
3V
¾
5
10 15 kHz
5V
¾
6.5 13 19.5 kHz
tRES
External Reset Low Pulse Width ¾
¾
1
¾
¾
ms
tSST
System Start-up time Period
For HXT/LXT
¾ For ERC/IRC
(By configuration option)
¾ 1024 ¾
tSYS
¾
2
¾
tSYS
¾ 1024 ¾
tSYS
tINT
Interrupt Pulse Width
¾
¾
1
¾
¾
ms
tLVR
Low Voltage Width to Reset
¾
¾
0.25 1
2
ms
tRSTD Reset Delay Time
¾
¾
¾ 100 ¾ ms
Note: 1. tSYS=1/fSYS
2. *For fERC, as the resistor tolerance will influence the frequency a precision resistor is recommended.
Rev.1.00
9
December 15, 2009
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