HT47C20 Holtek Semiconductor Inc, HT47C20 Datasheet - Page 7

• Manufacturer Part Number: HT47C20
• Description: 8-Bit Microcontroller
• Manufacturer: Holtek Semiconductor Inc

Note: *R means the resistance of RC type A/D converter
Symbol
I
V
V
V
V
V
I
I
I
I
I
I
I
I
I
I
I
I
R
STB6
OL
OH
OL1
OH1
OL2
OH2
OL3
OH3
OL4
OH4
OL5
OH5
IL1
IH1
IL2
IL3
IH2
PH
*f means the frequency of RC type A/D converter
Standby Current
(A/D On, *R=5kW, *f=500kHz)
Input Low Voltage for I/O
Ports
Input High Voltage for I/O
Ports
Input Low Voltage (RES)
Input Low Voltage (INT, TMR) 3V 0.3V
Input High Voltage
(RES, INT, TMR)
I/O Port Sink Current
I/O Port Source Current
Common 0~3 Output Sink
Current
Common 0~3 Output Source
Current
Segment 0~19 Output Sink
Current
Segment 0~19 Output Source
Current
Common 0~3 Output Sink
Current
Common 0~3 Output Source
Current
Segment 0~19 Output Sink
Current
Segment 0~19 Output Source
Current
RC Oscillation Output Sink
Current
RC Oscillation Output Source
Current
Pull-high Resistance of I/O
Ports and INT
Parameter
V
3V No load, system Halt
3V
3V
3V 0.5V
3V 0.8V
3V V
3V V
3V V
3V V
3V V
3V V
3V V
3V V
3V V
3V V
3V V
3V V
3V
DD
Test Conditions
7
OL
OH
OL
OH
OL
OH
OL
OH
OL
OH
OL
OH
=0.3V
=0.3V (1/2 bias)
=0.3V (1/2 bias)
=0.45V (1/3 bias)
=0.45V (1/3 bias)
=0.3V
=2.7V
=2.7V (1/2 bias)
=2.7V (1/2 bias)
=4.05V (1/3 bias)
=4.05V (1/3 bias)
=2.7V
DD
DD
DD
Conditions
¾
¾
¾
Min. Typ. Max. Unit
-100 -180
-50 -100
-15
100
-20
2.1
2.4
¾
-1
50
15
20
-5
40
0
0
0
2
5
-1.5
600 1200
100
-30
180
-40
-10
3.5
30
40
10
60
¾
¾
¾
¾
¾
January 18, 2000
HT47C20
0.9
1.5
0.9
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
80
3
3
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
kW
V
V
V
V
V