參數(shù)資料
型號(hào): PCF8549
廠商: NXP Semiconductors N.V.
英文描述: 65 x 102 pixels matrix LCD driver
中文描述: 65 × 102像素矩陣LCD驅(qū)動(dòng)器
文件頁數(shù): 18/36頁
文件大小: 271K
代理商: PCF8549
1997 Nov 21
18
Philips Semiconductors
Product specification
65
×
102 pixels matrix LCD driver
PCF8549
Table 5
LCD bias voltage
Set V
OP
value:
The operation voltage V
LCD
can be set by software. The generated voltage is dependent of the temperature, the
programmed temperature coefficient (TC), and the programmed voltage at reference temperature (T
CUT
).
(1)
The voltage at reference temperature (V
LCD
(T=T
CUT
)) can be calculated as:
(2)
The parameters are explained in table 6.
The maximum voltage that can be generated is depending on the V
DD2/2_HV
Voltage and the display load current. The
relation ship is shown in Fig.16.
The charge pump is turned off if Vop[6 : 0] is set to zero.
For Mux 1 : 65 the optimum operation voltage of the liquid can be calculated as:
where V
th
is the threshold voltage of the liquid crystal material used.
1
1
1
0
1
1
1
0
1
2
1
0
6
5
4
1 : 24
1 : 16
1 : 9
SYMBOL
BIAS VOLTAGES
V
LCD
(b-1)/b
×
V
LCD
(b-2)/b
×
V
LCD
2/b
×
V
LCD
1/b
×
V
LCD
V
SS
V1
V2
V3
V4
V5
V6
BS[2]
BS[1]
BS[0]
n
b (RES. COUNT)
MUX RATE
V
LCD
a
VOP
+
b
(
)
T
T
CUT
(
)
TC
+
=
V
LCD
a
VOP
+
b
(
)
=
V
LCD
65
+
2
1
65
--1
--------1
th
6.85 V
th
=
=
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PCF8549U 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:65 x 102 pixels matrix LCD driver
PCF8549U/2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:65 x 102 pixels matrix LCD driver
PCF8549U/2/F1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:65 x 102 pixels matrix LCD driver
PCF8551ATT/AJ 功能描述:IC LCD DRIVER UNIV 48TSSOP 制造商:nxp usa inc. 系列:- 包裝:剪切帶(CT) 零件狀態(tài):在售 顯示類型:LCD 配置:7段 + DP,14段 + DP + AP,點(diǎn)陣 接口:I2C 數(shù)字或字符:9 個(gè)字符,18 個(gè)字符,144 元件 電流 - 電源:1.2μA 電壓 - 電源:1.8 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TFSOP(0.240",6.10mm 寬) 供應(yīng)商器件封裝:48-TSSOP 標(biāo)準(zhǔn)包裝:1
PCF8551BTT/AJ 功能描述:IC LCD DRIVER UNIV 48TSSOP 制造商:nxp usa inc. 系列:* 包裝:剪切帶(CT) 零件狀態(tài):在售 安裝類型:表面貼裝 封裝/外殼:48-TFSOP(0.240",6.10mm 寬) 供應(yīng)商器件封裝:48-TSSOP 標(biāo)準(zhǔn)包裝:1