參數(shù)資料
型號(hào): LC7942YC
廠商: Sanyo Electric Co.,Ltd.
英文描述: Dot Matrix LCD Driver(點(diǎn)陣LCD驅(qū)動(dòng)器)
中文描述: 點(diǎn)陣LCD驅(qū)動(dòng)器(點(diǎn)陣液晶驅(qū)動(dòng)器)
文件頁數(shù): 4/8頁
文件大?。?/td> 205K
代理商: LC7942YC
LC7942YC
No. 6159—4/8
Pin Functions
Specifications
The following electrical characteristics apply when sealed in a Sanyo standard QIC-80 package.
Absolute Maximum Ratings
at Ta = 25 ±2°C, V
SS
= 0 V
Note
V
DD
V
1
> V
2
>V
5
> V
EE
Number
Name
I/O
Function
32
V
DD
Supply
V
DD
– V
ss
is the logic supply.
V
DD
– V
EE
is the LCD supply.
34
V
SS
27
V
EE
30
V
1
Supply
LCD panel drive voltage supplies.
V
1
and V
EE
are selected levels.
V
2
and V
5
are not–selected levels.
29
V
2
28
V
5
38
CP
I
Display data input clock (falling–edge trigger).
40
DIO1
I/O
25
DIO64
I/O
33
RS/LS
I
36
M
I
LCD panel drive voltage output alternation control signal.
31
DISP OFF
I
O1 to O64 output control input pins.
41 to 80
O
LCD drive outputs
The output drive level is determined by the display data, M signal and DISPOFF input as show below.
Note
×
= don’t care (tied HIGH or LOW)
O1 to O40
1 to 24
O41 to O64
26
NC
No connection.
35
NC
37
NC
39
NC
Parameter
Symbol
Ratings
Unit
Logic supply voltage
V
DD
max
–0.3 to +7.0
V
LCD supply voltage. See note.
V
DD
– V
EE
max
0 to 22
V
Input voltage
V
I
max
–0.3 to V
DD
+ 0.3
V
Operating temperature range
T
opr
–20 to +85
°C
Storage temperature range
T
stg
–40 to +125
°C
RS/LS
DIO1
DIO64
Shift direction
LOW (rlght shift)
Input
Output
O1
O64
HIGH (left shift)
Output
Input
O64
O1
M
Q
DISPOFF
Output
LOW
LOW
HIGH
V
2
LOW
HIGH
HIGH
V
EE
HIGH
LOW
HIGH
V
5
HIGH
HIGH
HIGH
V
1
×
×
LOW
V
1
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