HT47C20 View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
MFG CO.
'HT47C20' PDF : 56 Pages View PDF
HT47C20
D.C. Characteristics
Ta=25°C
Symbol
Parameter
Test Conditions
VDD
Conditions
VDD Operating Voltage
¾
¾
IDD1 Operating Current (Crystal OSC)
3V
No load, fSYS=455kHz
A/D Off
IDD2 Operating Current (RC OSC)
3V
No load, fSYS=455kHz
A/D Off
ISTB1
Standby Current
(32.768kHz Crystal Oscillator Enable,
LCD Off)
3V No load, system HALT
ISTB2
Standby Current
(32.768kHz Crystal Oscillator Enable,
LCD On)
3V No load, system HALT
ISTB3
Standby Current
(Watchdog RC Oscillator Enable, LCD Off)
3V
No load, system HALT
ISTB4
Standby Current
(Watchdog RC Oscillator Enable, LCD On)
3V
No load, system HALT
ISTB5
Standby Current
(32.768kHz Crystal and Watchdog RC
Oscillator Both Disabled, LCD Off)
3V No load, system HALT
ISTB6
Standby Current
(A/D On, *R=5kW, *f=500kHz)
3V No load, system HALT
VIL1 Input Low Voltage for I/O Ports
3V
¾
VIH1 Input High Voltage for I/O Ports
3V
¾
VIL2 Input Low Voltage (RES)
3V 0.5VDD
VIL3 Input Low Voltage (INT, TMR)
3V 0.3VDD
VIH2 Input High Voltage (RES, INT, TMR)
3V 0.8VDD
IOL I/O Port Sink Current
3V VOL=0.3V
IOH I/O Port Source Current
3V VOH=2.7V
IOL1 Common 0~3 Output Sink Current
3V VOL=0.3V (1/2 bias)
IOH1 Common 0~3 Output Source Current
3V VOH=2.7V (1/2 bias)
IOL2 Segment 0~19 Output Sink Current
3V VOL=0.3V (1/2 bias)
IOH2 Segment 0~19 Output Source Current
3V VOH=2.7V (1/2 bias)
IOL3 Common 0~3 Output Sink Current
3V VOL=0.45V (1/3 bias)
IOH3 Common 0~3 Output Source Current
3V VOH=4.05V (1/3 bias)
IOL4 Segment 0~19 Output Sink Current
3V VOL=0.45V (1/3 bias)
IOH4 Segment 0~19 Output Source Current
3V VOH=4.05V (1/3 bias)
IOL5 RC Oscillation Output Sink Current
3V VOL=0.3V
IOH5 RC Oscillation Output Source Current
3V VOH=2.7V
RPH Pull-high Resistance of I/O Ports and INT 3V
¾
Min. Typ. Max. Unit
2.4 3 3.6 V
¾ 0.2 0.4 mA
¾ 0.2 0.4 mA
¾¾
3
mA
¾¾
5
mA
¾¾
7
mA
¾ ¾ 10 mA
¾¾
1
mA
¾ 600 1200 mA
0 ¾ 0.9 V
2.1 ¾
3
V
0 ¾ 1.5 V
0 ¾ 0.9 V
2.4 ¾
3
V
2 3.5 ¾ mA
-1 -1.5 ¾ mA
50 100 ¾ mA
-50 -100 ¾ mA
15 30 ¾ mA
-15 -30 ¾ mA
100 180 ¾ mA
-100 -180 ¾ mA
20 40 ¾ mA
-20 -40 ¾ mA
5 10 ¾ mA
-5 -10 ¾ mA
40 60 80 kW
Note: *R stands for the resistance of RC type A/D converter
*f stands for the frequency of RC type A/D converter
Rev. 1.60
6
July 26, 2002
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