HT46R49 Holtek Semiconductor, HT46R49 Datasheet - Page 7

• Manufacturer Part Number: HT46R49
• Description: Cost-Effective A/D Type 8-Bit MCU
• Manufacturer: Holtek Semiconductor

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A.C. Characteristics
Note: *t
Rev. 1.30
f
f
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
SYS
TIMER
WDTOSC
WDT1
WDT2
RES
SST
LVR
INT
AD1
AD2
ADC1
ADC2
ADCS1
ADCS2
SYS
=1/f
System Clock
Timer I/P Frequency
(TMR)
Watchdog Oscillator Period
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
HT46R46
A/D Clock Period
HT46R47/HT46R48A/HT46R49
A/D Conversion Time
HT46R46
A/D Conversion Time
HT46R47/HT46R48A/HT46R49
A/D Sampling Time
HT46R46
A/D Sampling Time
HT46R47/HT46R48A/HT46R49
SYS
Parameter
V
3V
5V
DD
Test Conditions
HT46R46/C46/R47/C47/R48A/C48A/R49
2.2V~5.5V
3.3V~5.5V
2.2V~5.5V
3.3V~5.5V
Wake-up from HALT
7
Conditions
Min.
0.25
400
400
2
2
0.5
45
32
0
0
1
1
1
15
17
1024
Typ.
90
65
64
76
32
32
1
Max.
4000
8000
4000
8000
180
130
2
2
2
16
18
June 5, 2008
t
Ta=25 C
WDTOSC
*t
Unit
kHz
kHz
kHz
kHz
t
t
t
t
t
ms
SYS
AD1
AD2
AD1
AD2
SYS
s
s
s
s
s
s