HT46R4A View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT46R4A Datasheet PDF : 60 Pages
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HT46R4A
A.C. Characteristics
Symbol
Parameter
fSYS
System Clock
fTIMER Timer I/P Frequency (TMR)
tWDTOSC Watchdog Oscillator Period
tWDT1
tWDT2
tRES
tSST
tLVR
tINT
tAD
tADC
tADCS
Watchdog Time-out Period (RC)
Watchdog Time-out Period
(System Clock)
External Reset Low Pulse Width
System Start-up Timer Period
Low Voltage Reset Time
Interrupt Pulse Width
A/D Clock Period
A/D Conversion Time
A/D Sampling Time
Test Conditions
VDD
Conditions
¾ 2.2V~5.5V
¾ 3.3V~5.5V
¾ 2.2V~5.5V
¾ 3.3V~5.5V
3V
¾
5V
¾
¾
¾
¾
¾
¾
¾
¾ Wake-up from HALT
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
Min.
400
400
0
0
45
32
215
217
1
¾
0.25
1
1
¾
¾
Note: *tSYS=1/fSYS
Typ.
¾
¾
¾
¾
90
65
¾
¾
¾
1024
1
¾
¾
76
32
Ta=25°C
Max. Unit
4000 kHz
8000 kHz
4000 kHz
8000 kHz
180
ms
130
ms
216 tWDTOSC
218
tSYS
¾
ms
¾
*tSYS
2
ms
¾
ms
¾
ms
¾
tAD2
¾
tAD2
Rev. 1.00
5
November 28, 2007
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