OM4068 Philips Semiconductors, OM4068 Datasheet - Page 18

• Manufacturer Part Number: OM4068
• Description: LCD driver for low multiplex rates
• Manufacturer: Philips Semiconductors

Philips Semiconductors
DC CHARACTERISTICS
V
Notes
1. Power-down state. After power-on the chip is in power-down state as long as the serial clock is not activated. During
2. Output SDOUT is open-circuit; inputs at V
3. Drive mode: static, duplex and triplex.
4. LCD outputs are open-circuit, C
5. Resets all logic when V
6. Resistance of output terminal (S1 to S32 and BP1, BP2 and BP3) with a load current of 20 A; outputs measured
7. LCD outputs open-circuits.
1998 Jun 18
Supplies
V
V
I
I
V
Logic
V
V
I
I
I
I
Segment and backplane outputs
R
R
V
V
DD
LCD
OL
OH
pu
L
DD
SYMBOL
DD
LCD
POR
IL
IH
seg(bias)(tol)
back(bias)(tol)
(o)seg
(o)back
LCD driver for low multiplex rates
power-down all static currents are switched off except the power-on reset block.
one at a time.
= 2.5 to 5.5 V; V
supply voltage
LCD supply voltage
supply current
V
power-on reset voltage level
LOW-level input voltage
HIGH-level input voltage
LOW-level output current (SDOUT)
HIGH-level output current (SDOUT)
pull-up current M1 and M0
leakage current
segment output resistance
SEG1 to SEG32
backplane output resistance
BP1 to BP3
bias tolerance SEG1 to SEG32
bias tolerance BP1, BP2 and BP3
LCD
current
SS
= 0 V; V
PARAMETER
DD
< V
LCD
POR
L
= 3.5 to 6.5 V; T
= 50 pF typical, inputs at V
.
DD
or V
amb
SS
power-down state;
note 1
normal mode;
f
notes 2 and 3
power-down state;
note 1
normal mode;
f
notes 3 and 4
note 5
V
V
V
V
V
note 6
note 6
note 7
note 7
osc
osc
; bus inactive.
OL
OH
DD
I
I
= 40 to +105 C; unless otherwise specified.
= V
= V
= intern;
= intern;
18
CONDITIONS
= 0.5 V; V
= 5 V
= V
SS
DD
DD
or V
DD
or V
0.5 V;
SS
DD
SS
= 5 V 1.0
; bus inactive.
V
V
0.8
V
0.7V
0.04
1
100
100
SS
SS
SS
MIN.
+ 2.5
+ 3.5
DD
4
12
1.25
0.15
15
15
0
0
TYP.
Product specification
5.5
6.5
10
25
1.5
40
1.6
0.3V
V
1
+1
40
40
+100
+100
1
MAX.
DD
OM4068
DD
V
V
V
V
V
mA
mA
k
k
mV
mV
UNIT
A
A
A
A
A
A