D.c. characteristics – Rainbow Electronics HT49R70A-1 User Manual
Page 5
D.C. Characteristics
Ta=25
°C
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DD
Conditions
V
DD
Operating Voltage
¾
¾
3.0
¾
5.5
V
I
DD1
Operating Current (Crystal OSC)
3V
No load, f
SYS
=4MHz
¾
2.0
3.0
mA
5V
¾
5.0
8.0
mA
I
DD2
Operating Current (RC OSC)
3V
No load, f
SYS
=4MHz
¾
1.8
2.7
mA
5V
¾
4.6
7.5
mA
I
DD3
Operating Current (f
SYS
=32768Hz)
3V
No load
¾
1.2
2
mA
5V
¾
4
7
mA
I
STB1
Standby Current (*f
S
=T1)
3V No load, system HALT
LCD off at HALT
¾
¾
1
mA
5V
¾
¾
2
mA
I
STB2
Standby Current (*f
S
=32.768kHz OSC)
3V No load, system HALT
LCD on at HALT, C type
¾
4
10
mA
5V
¾
14
20
mA
I
STB3
Standby Current (*f
S
=WDT RC OSC)
3V No load, system HALT
LCD on at HALT, C type
¾
2
5
mA
5V
¾
6
10
mA
I
STB4
Standby Current (*f
S
=32.768kHz OSC)
3V No load, system HALT
LCD on at HALT
R type, 1/2bias
¾
17
30
mA
5V
¾
34
60
mA
I
STB5
Standby Current (*f
S
=32.768kHz OSC)
3V No load, system HALT
LCD on at HALT
R type, 1/3bias
¾
13
25
mA
5V
¾
28
50
mA
I
STB6
Standby Current (*f
S
=WDT RC OSC)
3V No load, system HALT
LCD on at HALT
R type, 1/2bias
¾
14
25
mA
5V
¾
26
50
mA
I
STB7
Standby Current (*f
S
=WDT RC OSC)
3V No load, system HALT
LCD on at HALT
R type, 1/3bias
¾
10
20
mA
5V
¾
19
40
mA
V
IL1
Input Low Voltage for I/O Ports,
TMR and INT
3V
¾
0
¾
0.2V
DD
V
5V
¾
0
¾
0.2V
DD
V
V
IH1
Input High Voltage for I/O Ports,
TMR and INT
3V
¾
0.8V
DD
¾
V
DD
V
5V
¾
0.8V
DD
¾
V
DD
V
V
IL2
Input Low Voltage (RES)
3V
¾
0
¾
0.4V
DD
V
5V
¾
0
¾
0.4V
DD
V
V
IH2
Input High Voltage (RES)
3V
¾
0.9V
DD
¾
V
DD
V
5V
¾
0.9V
DD
¾
V
DD
V
I
OL
I/O Port Sink Current
3V V
OL
=0.1V
DD
6
12
¾
mA
5V V
OL
=0.1V
DD
10
25
¾
mA
I
OH
I/O Port Source Current
3V V
OH
=0.9V
DD
-2
-4
¾
mA
5V V
OH
=0.9V
DD
-5
-8
¾
mA
R
PH
Pull-high Resistance of I/O Ports and
INT0, INT1
3V
¾
40
60
80
k
W
5V
¾
10
30
50
k
W
V
LVR
Low Voltage Reset Voltage
¾ LVD voltage 3.3V option
2.7
3.2
3.6
V
V
LVD
Low Voltage Detector Voltage
¾ LVD voltage 3.3V option
3.0
3.3
3.6
V
Note:
²*f
S
² please refer to clock option of WDT (page 12)
HT49R70A-1
Rev. 1.00
5
December 4, 2001