參數(shù)資料
型號: PCF8579U7
廠商: NXP SEMICONDUCTORS
元件分類: 顯示驅(qū)動器
英文描述: LCD column driver for dot matrix graphic displays
中文描述: LIQUID CRYSTAL DISPLAY DRIVER, UUC55
封裝: DIE-56
文件頁數(shù): 24/40頁
文件大小: 287K
代理商: PCF8579U7
1997 Apr 01
24
Philips Semiconductors
Product specification
LCD column driver for dot matrix graphic
displays
PCF8579
12 DC CHARACTERISTICS
V
DD
= 2.5 to 6 V; V
SS
= 0 V; V
LCD
= V
DD
3.5 V to V
DD
9 V; T
amb
=
40 to +85
°
C; unless otherwise specified.
Notes
1.
2.
3.
4.
Outputs are open; inputs at V
DD
or V
SS
; I
2
C-bus inactive; clock with 50% duty factor.
Resets all logic when V
DD
< V
POR
.
Periodically sampled; not 100% tested.
Resistance measured between output terminal (C0 to C39) and bias input (V
3
, V
4
, V
DD
and V
LCD
) when the specified
current flows through one output under the following conditions (see Table 1):
a)
V
op
= V
DD
V
LCD
= 9 V;
b)
V
3
V
LCD
4.70 V; V
4
V
LCD
4.30 V; I
LOAD
= 100
μ
A.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
V
DD
V
LCD
I
DD
V
POR
supply voltage
LCD supply voltage
supply current
power-on reset level
2.5
V
DD
9
9
1.3
6.0
V
DD
3.5
20
1.8
V
V
μ
A
V
f
CLK
= 2 kHz; note 1
note 2
Logic
V
IL
V
IH
I
LI1
LOW level input voltage
HIGH level input voltage
leakage current at pins SDA, SCL,
SYNC, CLK, TEST, SA0, A0, A1, A2
and A3
LOW level output current at pin SDA
input capacitance
V
SS
0.7V
DD
1
0.3V
DD
V
DD
+1
V
V
μ
A
V
i
= V
DD
or V
SS
I
OL
C
i
V
OL
= 0.4 V; V
DD
= 5 V 3
note 3
5
mA
pF
LCD outputs
I
LI2
V
DC
leakage current at pins V
3
to V
4
DC component of LCD drivers pins
C0 to C39
output resistance at pins C0 to C39
V
i
= V
DD
or V
LCD
2
±
20
+2
μ
A
mV
R
COL
note 4
3
6
k
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