參數(shù)資料
型號: HT46C22
廠商: Holtek Semiconductor Inc.
英文描述: 8-Bit A/D Type MCU
中文描述: 8位A / D型微控制器
文件頁數(shù): 5/46頁
文件大?。?/td> 390K
代理商: HT46C22
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
IH1
Input High Voltage for I/O Ports,
TMR and INT
3V
0.7V
DD
V
DD
V
5V
0.7V
DD
V
DD
V
V
IL2
Input Low Voltage (RES)
3V
0
0.4V
DD
V
5V
0
0.4V
DD
V
V
IH2
Input High Voltage (RES)
3V
0.9V
DD
V
DD
V
5V
0.9V
DD
V
DD
V
V
LVR
Low Voltage Reset
2.7
3
3.3
V
I
OL
I/O Port Sink Current
3V
V
OL
=0.1V
DD
4
8
mA
5V
V
OL
=0.1V
DD
10
20
mA
I
OH
I/O Port Source Current
3V
V
OH
=0.9V
DD
2
4
mA
5V
V
OH
=0.9V
DD
5
10
mA
R
PH
Pull-high Resistance
3V
40
60
80
k
5V
10
30
50
k
E
AD
A/D Conversion Error
0.5
1
LSB
A.C. Characteristics
Ta=25 C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
f
SYS1
System Clock (Crystal OSC)
3V
400
4000
kHz
5V
400
8000
kHz
f
SYS2
System Clock (RC OSC)
3V
400
4000
kHz
5V
400
8000
kHz
f
TIMER
Timer I/P Frequency (TMR)
3V
0
4000
kHz
5V
0
8000
kHz
t
AD
A/D Clock Period
5V
1
s
t
ADC
A/D Conversion Time
76
t
AD
t
WDTOSC
Watchdog Oscillator
3V
43
86
168
s
5V
35
65
130
s
t
RES
External Reset Low Pulse Width
1
s
t
SST
System Start-up Timer Period
Wake-up from HALT
1024
*t
SYS
t
INT
Interrupt Pulse Width
1
s
t
IIC
I
2
C BUS Clock Period
Connect to external
pull-high resistor 2k
64
*t
SYS
t
OPT
Option Load Time During Reset
3V
System power on, WDT
time-out at normal mode,
RES is reset
45
90
180
ms
5V
35
70
140
ms
Note: *t
SYS
=1/f
SYS
HT46R22/HT46C22
Rev. 1.10
5
October 2, 2002
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