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參數(shù)資料
| 型號： | PCF1303 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 18-element bar graph LCD driver |
| 中文描述： | 18元條形圖LCD驅(qū)動器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 63K |
| 代理商： | PCF1303 |
November 1986
4
Philips Semiconductors
Product specification
18-element bar graph LCD driver
PCF1303T
FUNCTIONAL DESCRIPTION
The PCF1303T is an 18-element bar graph LCD driver with linear relation to the control voltage when in pointer or
thermometer mode.
The first segment will energize when the control voltage is less than the trigger voltage (V
T(bar)2
see equation (3)).
The circuit has analogue and digital sections.
The analogue section consists of a comparator with the inverting input coupled to the input control voltage. The
non-inverting input of the comparator is connected via 17 analogue switches to the nodes of an 18-element resistor
divider. The extremities of the resistor divider are coupled via high-input impedance amplifiers to the maximum reference
voltage input and the minimum reference voltage input.
The control input functions with Schmitt trigger action.
The digital section has one reference output (Q
R
) to drive the back-plane and 18 outputs (Q
1
to Q
18
) to drive the
segments.
The segment outputs incorporate two latches and some gates.
The circuit is driven by an on-chip oscillator with external resistors and capacitors. The outputs are driven at typical
100 Hz.
LINEARITY
V
step
(1)
V
step
′
is the voltage drop (internal) across the resistor-ladder network.
V
step
is the differential on V
step
.
V
–
18
(2)
V
2
and
V
2
′
are the maximum offset voltage spread of the on-chip voltage followers.
ABSOLUTE VOLTAGE TRIGGER LEVEL
The absolute voltage trigger level at the V
c
pin is V
T(bar)n
;
(3)
n = number of segments; 2
≤
n
≤
18.
V
R
is the voltage deviation at step n of the resistor-ladder network (for n = 2 or 18,
V
R
=
V
step
).
V
1
is the offset voltage for the on-chip comparator.
V
H
is the hysteresis voltage: 30% V
step
≥
V
H
≥
10% V
step.
Note
to equation (3)
For
V
2
the same sign (
+
or
) should be used as in equation (2).
V
step
′
V
step
±
=
V
step
′
)
V
ref min
V
±
2
(
)
--------------------------------V
=
V
T bar
)
n
V
ref min
V
±
2
(
)
n
1
–
(
)
V
step
′
V
±
R
{
}
V
±
1
V
±
H
+
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCF1303T | 18-element bar graph LCD driver |
| PCF2042V | EEPROM |
| PCF2103 | LCD controllers/drivers |
| PCF2103EU | LCD controllers/drivers |
| PCF2104L | LCD controller/driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCF1303T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:18-element bar graph LCD driver |
| PCF1328CT-ND | 制造商:Panasonic Industrial Company 功能描述: |
| PCF14JT100K | 功能描述:RES 100K OHM 1/4W 5% CARBON FILM RoHS:是 類別:電阻器 >> 通孔電阻器 系列:CF 產(chǎn)品變化通告:Global Part Number Change 9/Aug/2010 標(biāo)準(zhǔn)包裝:2,500 系列:RSF 電阻（歐姆）:15 功率（瓦特）:0.5W，1/2W 復(fù)合體:金屬氧化物薄膜 特點:耐燃 溫度系數(shù):±200ppm/°C 容差:±5% 封裝/外殼:軸向 尺寸/尺寸:0.138" 直徑 x 0.354" L（3.50mm x 9.00mm） 高度:- 端子數(shù):2 包裝:帶卷 (TR) 其它名稱:RS 1/2 15 5% RRS 1/2 15 5% R-NDRS1/2155%RRS1/2155%R-NDRS1/215JRRS1/215JR-ND |
| PCF14JT100R | 功能描述:RES 100 OHM 1/4W 5% CARBON FILM RoHS:是 類別:電阻器 >> 通孔電阻器 系列:CF 產(chǎn)品變化通告:Global Part Number Change 9/Aug/2010 標(biāo)準(zhǔn)包裝:2,500 系列:RSF 電阻（歐姆）:15 功率（瓦特）:0.5W，1/2W 復(fù)合體:金屬氧化物薄膜 特點:耐燃 溫度系數(shù):±200ppm/°C 容差:±5% 封裝/外殼:軸向 尺寸/尺寸:0.138" 直徑 x 0.354" L（3.50mm x 9.00mm） 高度:- 端子數(shù):2 包裝:帶卷 (TR) 其它名稱:RS 1/2 15 5% RRS 1/2 15 5% R-NDRS1/2155%RRS1/2155%R-NDRS1/215JRRS1/215JR-ND |
| PCF14JT10K0 | 功能描述:RES 10K OHM 1/4W 5% CARBON FILM RoHS:是 類別:電阻器 >> 通孔電阻器 系列:CF 產(chǎn)品變化通告:Global Part Number Change 9/Aug/2010 標(biāo)準(zhǔn)包裝:2,500 系列:RSF 電阻（歐姆）:15 功率（瓦特）:0.5W，1/2W 復(fù)合體:金屬氧化物薄膜 特點:耐燃 溫度系數(shù):±200ppm/°C 容差:±5% 封裝/外殼:軸向 尺寸/尺寸:0.138" 直徑 x 0.354" L（3.50mm x 9.00mm） 高度:- 端子數(shù):2 包裝:帶卷 (TR) 其它名稱:RS 1/2 15 5% RRS 1/2 15 5% R-NDRS1/2155%RRS1/2155%R-NDRS1/215JRRS1/215JR-ND |
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