參數(shù)資料
型號(hào): HCF4054BF
廠商: 意法半導(dǎo)體
英文描述: LIQUID-CRYSTAL DISPLAY DRIVERS
中文描述: 液晶顯示器驅(qū)動(dòng)
文件頁(yè)數(shù): 2/15頁(yè)
文件大?。?/td> 334K
代理商: HCF4054BF
PIN CONNECTIONS
4054B
4055B
4056B
as L, P, H, A,– , and ablank position. (see typical ap-
plication for other letters). The
HCC/HCF4054B
pro-
vides level shifting similar to the
HCC/HCF4055B
and
HCC/HCF4056B
independently strobed latches,
and common DF control on 4 signal lines. The
HCC/HCF4054B
isintended to provide drive-signal
compatibility
with
the
HCC/HCF4056B
7-segment decoder types for the
decimal point,colon,polarity,andsimilardisplay lines.
A level-shifted high-amplitude DF output can be ob-
tainedfrom any
HCC/HCF4054B
outputlinebycon-
necting the corresponding input and strobe lines to
a
low
and
high
level,
HCC/HCF4054B
mayalso be utilized for logic-level
”upconversion” or”downconversion”. Forexample,
input-signal swings (V
DD
toV
SS
) from+ 5 to 0V can
be convertedtooutput-signal swings (V
DD
toV
EE
) of
+ 5 to – 5V. The level-shifted function on all three
types permits the use of different input-and output-
signal swings. The input swingsfrom a low level of
V
SS
to a high level of V
DD
while the output swings
HCC/HCF4055B
and
respectively.
The
froma lowlevelofV
EE
tothesame highlevel ofV
DD
.
Thus, the input and output swings can be selected
independently of each other over a 3-to-18V range.
V
SS
may be connected to V
EE
when no level-shift
function is required. For the
HCC/HCF 4054B
and
HCC/HCF4056B
, dataare transferred frominput to
output by placing a high voltage level at the strobe
input. Alow voltage level at the strobe input latches
the data input and the corresponding output seg-
ments remain selected (or non-selected) while the
strobe is low.Whenever the level-shifting function
is required, the
HCC/HCF4055B
can be used by it-
self to drive a liquid-crystal display (fig. 10 and fig.
12). The
HCC/HCF4056B
, however, must be used
together witha
HCC/HCF4054B
toprovide the com-
mon DF output (fig. 14). The capability of extending
the voltage swing on the negative end (this voltage
cannot be extended on the positive end) can be
used to advantage in theset-up of fig. 11. Fig. 9 is
commonto all three types.
HCC/HCF4054B/55B/56B
2/15
相關(guān)PDF資料
PDF描述
HCF4055BEY LIQUID-CRYSTAL DISPLAY DRIVERS
HCF4055BF Quadruple Line Driver 14-SOIC 0 to 70
HCF4056BF Quadruple Line Driver 14-SOIC 0 to 70
HCC4055BM1 LIQUID-CRYSTAL DISPLAY DRIVERS
HCF4055BM1 LIQUID-CRYSTAL DISPLAY DRIVERS
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