參數(shù)資料
型號(hào)： HD66523R
廠商： Hitachi,Ltd.
英文描述： 240-Channel Common Driver with Internal LCD Timing Circuit(帶內(nèi)部LCD定時(shí)電路的240通道驅(qū)動(dòng)器)
中文描述： 240頻道共同的內(nèi)部LCD定時(shí)電路（帶內(nèi)部液晶定時(shí)電路的240通道驅(qū)動(dòng)器驅(qū)動(dòng)程序）
文件頁(yè)數(shù)： 10/30頁(yè)
文件大?。?/td> 139K
代理商： HD66523R
HD66523R
10
Internal Block Diagram
Oscillator
CL1
FLM DOC
C
R
CR
M/S
DISPOFF
BP4~0
DUTY
X1 to X240
Level
shifter
VM2
VRL2
VRH1
VM1
VRL1
240
240
FX0 FX1
SHL
RESET
I/O control
VRH2
LCD driver
Decoder
Level shifter
240
Selector
VRH–VRL
V
CC
–GND
LCD timing
generator
Scanning function
generator
TEST1 TEST0
BLANK
1. CR Oscillator:
The CR oscillator generates the HD66523R operation clock. During master mode, since
the operation clock is needed, connect oscillation resistor R
f
with oscillation capacitor C
f
. When the
external clock is used. Input external clock to pin CR and open pins C and R (Figure 1).
When using the HD66523R during slave mode, the operation clock will not be needed; therefore,
connect pin CR to V
CC
and open pins C and R (Figure 2).
2. Liquid Crystal Timing Generator:
The liquid crystal timing generator creates various signals for the
LCD. During master mode (M/
S
= V
CC
), the generator operates the HD66523R’s internal circuitry as a
common internal driver using the generated LCD signals. In addition, signals CL1, FLM and
DOC
created by this generator can synchronously display data on a liquid crystal display by inputting them
into the RAM-provided segment driver HD66522 used together with HD66523R. During slave mode
(M/
S
= GND), this generator stops; the slave HD66523R operates based on signals CL1,
DOC
and
FLM generated by the master HD66523R.
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PDF描述
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