參數(shù)資料
型號： OM4068
廠商： NXP Semiconductors N.V.
英文描述： LCD driver for low multiplex rates
中文描述： LCD驅(qū)動器的低復(fù)用率
文件頁數(shù)： 18/28頁
文件大小： 156K
代理商： OM4068
1998 Jun 18
18
Philips Semiconductors
Product specification
LCD driver for low multiplex rates
OM4068
DC CHARACTERISTICS
V
DD
= 2.5 to 5.5 V; V
SS
= 0 V; V
LCD
= 3.5 to 6.5 V; T
amb
=
40 to +105
°
C; unless otherwise specified.
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
power-down all static currents are switched off except the power-on reset block.
Output SDOUT is open-circuit; inputs at V
DD
or V
SS
; bus inactive.
Drive mode: static, duplex and triplex.
LCD outputs are open-circuit, C
L
= 50 pF typical, inputs at V
DD
or V
SS
; bus inactive.
Resets all logic when V
DD
< V
POR
.
Resistance of output terminal (S1 to S32 and BP1, BP2 and BP3) with a load current of 20
μ
A; outputs measured
one at a time.
LCD outputs open-circuits.
2.
3.
4.
5.
6.
7.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
V
DD
V
LCD
I
DD
supply voltage
LCD supply voltage
supply current
V
SS
+ 2.5
V
SS
+ 3.5
4
5.5
6.5
10
V
V
μ
A
power-down state;
note 1
normal mode;
f
osc
= intern;
notes 2 and 3
power-down state;
note 1
normal mode;
f
osc
= intern;
notes 3 and 4
note 5
12
25
μ
A
I
LCD
V
LCD
current
1.5
μ
A
40
μ
A
V
POR
power-on reset voltage level
0.8
1.25
1.6
V
Logic
V
IL
V
IH
I
OL
I
OH
LOW-level input voltage
HIGH-level input voltage
LOW-level output current (SDOUT)
HIGH-level output current (SDOUT)
V
SS
0.7V
DD
0.3V
DD
V
DD
1
V
V
mA
mA
V
OL
= 0.5 V; V
DD
= 5 V 1.0
V
OH
= V
DD
0.5 V;
V
DD
= 5 V
V
I
= V
SS
V
I
= V
DD
or V
SS
I
pu
I
L
pull-up current M1 and M0
leakage current
0.04
1
0.15
1
+1
μ
A
μ
A
Segment and backplane outputs
R
(o)seg
segment output resistance
SEG1 to SEG32
backplane output resistance
BP1 to BP3
bias tolerance SEG1 to SEG32
V
back(bias)(tol)
bias tolerance BP1, BP2 and BP3
note 6
15
40
k
R
(o)back
note 6
15
40
k
V
seg(bias)(tol)
note 7
note 7
100
100
0
0
+100
+100
mV
mV
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