參數(shù)資料
型號: SED1278D0B
廠商: Electronic Theatre Controls, Inc.
英文描述: CMOS DOT MATRIX LCD CONTROLLER DRIVER
中文描述: 的CMOS點(diǎn)陣LCD控制器驅(qū)動
文件頁數(shù): 4/16頁
文件大?。?/td> 164K
代理商: SED1278D0B
290
Parameter
Symbol
V
IH1
V
IL1
V
IH2
V
IL2
V
OH1
V
OL1
V
OH2
V
OL2
R
COM
R
SEG
I
IL
–I
P
I
op
Condition
Applicable Pin
DB0~DB7
RS, R/W, E
Min
2.0
V
SS
Typ
2
2.5
125
0.5
Max
V
DD
0.8
V
DD
1.0
0.4
0.1V
DD
10
10
1
250
0.8
Unit
V
V
V
V
V
V
V
V
k
k
μ
A
μ
A
mA
“H” level input voltage (1)
“L” level input voltage (1)
“H” level input voltage (2)
“L” level input voltage (2)
“H” level output voltage (1)
“L” level output voltage (1)
“H” level output voltage (2)
“L” level output voltage (2)
Driver-on resistor (COM)
Driver-on resistor (SEG)
I/O leakage current
Pull-up MOS current
Supply current
External clock operation
OSC1
V
DD
–1.0
V
SS
2.4
0.9V
DD
50
I
OH
=–0.205mA
I
OL
=1.6mA
I
OH
=–0.04mA
I
OL
=0.04mA
|V
COM
–V
n
|=0.5V
|V
SEG
–V
n
|=0.5V
V
I
=0 to V
DD
V
DD
=5V
Rf oscillation, from external clock
V
DD
=5V, f
OSC
=f
CP
=270kHz
DB0~DB7
COM1~16
SEG1~40
V
DD
External clock operating frequency
External clock duty
External clock rise time
External clock fall time
Internal clock operation (Rf oscillation)
Oscillation frequency
Internal clock operation (Ceramic filter oscillation)
Oscillation frequency
LCD driving voltage
f
EXTCL
Duty
tr
EXTCL
tf
EXTCL
125
45
250
50
350
55
0.2
0.2
kHz
%
μ
s
μ
s
f
OSC
R
f
=91k
±
2%
190
270
350
kHz
f
OSC
V
LCD
Ceramic filter
V
DD
–V5
245
3.0
250
255
V
DD
kHz
V
DC Characteristics
XSCL
LP
D0
(V
DD
= 5.0V
±
10%, V
SS
= 0V, T
a
= –20 to 75
°
C)
AC Characteristics
°
Read cycle
Parameter
Symbol
t
cycE
t
WEH
t
rE
, t
fE
t
AS
t
AH
t
RD
t
DHR
Conditions
Min
500
220
40
10
20
Typ
Max
25
120
Unit
ns
ns
ns
ns
ns
ns
ns
Enable cycle time
Enable “H” level pulse width
Enable rise/fall time
RS, R/W setup time
RS, R/W address hold time
Read data output delay
Read data hold time
C
L
=100pF
(V
DD
= 5.0V
±
10%, V
SS
= 0V, T
a
= –20 to 75
°
C)
SED1278
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