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參數(shù)資料
| 型號(hào)： | HD66421TB0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | (RAM-Provided 160 Channel 4-Level Grey Scale Driver for Dot Matrix Graphics LCD) |
| 中文描述： | （內(nèi)存提供160通道4級(jí)灰度的點(diǎn)陣圖形液晶顯示驅(qū)動(dòng)程序） |
| 文件頁數(shù)： | 6/46頁 |
| 文件大?。?/td> | 201K |
| 代理商： | HD66421TB0 |
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Preliminary
Rev. 1.1E '99.02.10
HD66421
Pin Description
Number
of Pins
12
4
5
Pin Name
Vcc1-6, GND1-6
VLCD1-4
V1O, V2O,
V3O,V4O,
V5O
OSC
OSC1,OSC2
I/O Connected to
-
Power supply
-
Power supply
-
V1 to V5 of
HD66421
Description
Vcc: +2.2V to +5.5V, GND: 0V
Power supply to LCD driving circuit
Several levels of power to the LCD driving outputs.
Master HD66421 outputs these levels to the slave
HD66421.
Must be connected to external resister when using
R-C oscillation. When using an external clock, it must
be input to the OSC terminal.
Clock output
1
2
I,
Oscillator
I/O resister or
external clock
O
OSC of Slave
HD66421
O
External DC/DC
convertor
I/O CL1 of HD66421
I/O FLM of HD66421
I/O M of HD66421
I
Vcc or GND
I
-
I
MPU
CO
1
DCON
1
Controls on/off switch of external DC/DC convertor
CL1
FLM
M
M/S
RES
CS
1
1
1
1
1
1
Line clock
Frame signal
Converts LCD driving outputs to AC
Specifies master/slave mode.
Reset the LSI internally when drive low.
Select the LSI, specifically internal registers (index and
data registers) when driven low.
Select one of the internal registers; select the index
register when driven low and data registers when
driven low.
Inputs write strobe; allows a write access when driven
low.
Inputs read strobe; allows a read access when driven
low.
8-bits three-state bidirectional data bus; transfer data
between the HD66420 and MPU through this bus.
Output column drive signals
RS
1
I
MPU
WR
1
I
MPU
RD
1
I
MPU
DB7 to DB0
8
I/O MPU
SEG1 to
SEG160
COM1 to
COM100
IREFP
IREFM
GREF
160
O
LCD
100
O
LCD
Output row drive signals
1
1
1
-
-
-
VCC
External resistor
GND
6
Power supply for internal operation amplifier
Bias current for internal operational amplifier
Power supply for internal operation amplifier
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相關(guān)代理商/技術(shù)參數(shù) |
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| HD66503 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520TA0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66520TB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:160-Channel 4-Level Grayscale Display Column Driver with Internal Bit-Map RAM |
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