ST7558
12. DC CHARACTERISTICS
VDD = 1.8 V to 3.3V; VSS = 0 V; VLCD = 3.0 to 13.0V; Tamb = -30℃ to +85℃; unless otherwise specified.
Rating
Applicable
Pin
Item
Symbol Condition
VDD
Units
V
Min.
Typ. Max.
Operating Voltage (1)
Operating Voltage (2)
1.8
—
—
3.3
3.3
Vss*1
VSS2
VDD2 (Relative to VSS)
1.8
V
High-level Input Voltage
Low-level Input Voltage
High-level Output Voltage
Low-level Output Voltage
Input leakage current
VIHC
VILC
0.7 x VDD
VSS
—
—
—
—
—
—
VDD
V
*2
*2
*3
*3
*4
*5
0.3 x VDD
VDD
V
VOHC
VOLC
0.7 x VDD
VSS
V
0.3 x VDD
1.0
V
μA
μA
ILI
VIN = VDD or VSS
VIN = VDD or VSS
–1.0
Output leakage current
ILO
–3.0
3.0
Ta =
VLCDIN =
13.0 V
—
2.0
3.5
Liquid Crystal Driver ON
Resistance
25°C
SEGn
KΩ
RON
(Relative
To VSS)
COMn *6
VLCDIN = 8.0
V
—
—
—
—
3.2
80
80
77
5.4
84
Internal Oscillator fOSC
kHz *7
kHz OSC
Hz
Oscillator
External
fCL
1/65 duty Ta = 25°C
84
Frequency
Input
Frame frequency fFRAME
80.3
Rating
Typ.
—
Item
Input voltage
Symbol
VDD
Condition
Units Applicable Pin
V
Min.
1.8
Max.
3.3
(Relative To VSS)
Supply Step-up output
voltage Circuit
Voltage regulator
Circuit Operating
Voltage
VLCDOUT (Relative To VSS)
—
—
13.5
V
VLCDOUT
VLCDIN
(Relative To VSS)
—
—
13.5
V
VLCDIN
Ver 2.3
37/56
2005/10/05
SITRONIX [ SITRONIX TECHNOLOGY CO., LTD. ]
