Chapter 1 Hardware Structure
Symbol
Parameter
Standby Current
(f
S
=WDT RC OSC)
Standby Current
(f
S
=WDT RC OSC)
Input Low Voltage for I/O
Ports, TMR and INT
Input High Voltage for I/O
Ports, TMR and INT
Input Low Voltage (RES)
Input High Voltage (RES)
Test Conditions
V
DD
3V
5V
3V
5V
¾
Conditions
No load, system HALT,
LCD On at HALT, R type,
1/2 bias
No load, system HALT,
LCD On at HALT, R type,
1/3 bias
¾
(For HT49C30L, HT49C50L,
HT49C70L)
(Except HT49C30L,
HT49C50L, HT49C70L)
¾
¾
Min.
¾
¾
¾
¾
0
0.8V
DD
0.7V
DD
0
0.9V
DD
0.4
V
OL
=0.1V
DD
6
10
-0.3
V
OH
=0.9V
DD
-2
-5
V
OL
=0.1V
DD
210
350
V
OH
=0.9V
DD
-80
-180
75
¾
20
10
¾
¾
2.7
3.0
Typ.
14
28
10
20
¾
¾
¾
¾
¾
0.8
12
25
-0.6
-4
-8
420
700
-160
-360
150
60
30
3.2
3.3
Max.
25
50
20
40
0.3V
DD
V
DD
V
DD
0.4V
DD
V
DD
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
300
100
50
3.6
3.6
Unit
mA
mA
mA
mA
V
V
V
V
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
kW
kW
kW
V
V
I
STB6
I
STB7
V
IL1
V
IH1
¾
V
IL2
V
IH2
¾
¾
1.5V
I
OL1
I/O Port Sink Current
3V
5V
1.5V
I
OH1
I/O Port Source Current
3V
5V
I
OL2
LCD Common and Segment
Current
LCD Common and Segment
Current
3V
5V
3V
5V
1.5V
I
OH2
R
PH
Pull-high Resistance
3V
5V
V
LVR
V
LVD
Low Voltage Reset Voltage
Low Voltage Detector Voltage
¾
¾
17