PATENTED
HT1621/HT1621G
Absolute Maximum Ratings
Storage Temperature............................-50oC to 125oC
Operating Temperature...........................-40oC to 85oC
Supply Voltage...........................VSS-0.3V to VSS+5.5V
Input Voltage..............................VSS-0.3V to VDD+0.3V
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
D.C. Characteristics
Ta=25°C
Test Conditions
Conditions
Symbol
VDD
Parameter
Min.
Typ.
Max.
Unit
VDD
¾
Operating Voltage
Operating Current
2.4
¾
5.2
300
600
120
240
200
400
5
V
¾
¾
150
300
60
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
3V
5V
mA
mA
mA
mA
mA
mA
mA
mA
V
No load/LCD ON
IDD1
On-chip RC oscillator
¾
¾
No load/LCD ON
Crystal oscillator
IDD2
IDD3
ISTB
VIL
Operating Current
120
100
200
0.1
¾
¾
No load/LCD ON
Operating Current
External clock source
¾
¾
Standby Current
No load, Power down mode
DATA, WR, CS, RD
0.3
10
¾
0
0.6
1.0
3.0
5.0
¾
¾
Input Low Voltage
0
V
¾
2.4
4.0
0.5
1.3
-0.4
-0.9
80
V
¾
VIH
Input High Voltage
DATA, WR, CS, RD
V
¾
V
V
V
V
V
OL=0.3V
OL=0.5V
OH=2.7V
OH=4.5V
OL=0.3V
1.2
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
kW
kW
IOL1
IOH1
IOL2
IOH2
IOL3
IOH3
RPH
DATA, BZ, BZ, IRQ
DATA, BZ, BZ
2.6
¾
-0.8
-1.8
150
250
-120
-200
120
200
-70
-100
120
60
¾
¾
¾
LCD Common Sink Current
LCD Common Source Current
LCD Segment Sink Current
LCD Segment Source Current
Pull-high Resistor
VOL=0.5V
150
-80
-120
60
¾
VOH=2.7V
VOH=4.5V
VOL=0.3V
¾
¾
¾
VOL=0.5V
120
-40
-70
60
¾
V
V
OH=2.7V
OH=4.5V
¾
¾
200
100
DATA, WR, CS, RD
30
Rev. 2.90
5
November 9, 2010
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
