參數(shù)資料
型號： HD66724
廠商： Hitachi,Ltd.
英文描述： Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
中文描述： 圖形液晶顯示控制器/鍵掃描功能（帶鍵掃描功能的圖形液晶顯示控制器/驅(qū)動器驅(qū)動程序）
文件頁數(shù)： 17/117頁
文件大?。?/td> 834K
代理商： HD66724
HD66724/HD66725
17
Table 2
Pin Functional Description (cont)
Signals
PORT0–
PORT2
Number of
Pins
6
I/O
O
Connected to
General output
Functions
General output ports. These ports cannot drive
current such as for LEDs or backlighting control.
Boost the current using an external transistor.
Two common output signals for segment-icon
display.
Common output signals for character/graphics
display: COM1 to COM8 for the first line; COM9 to
COM16 for the second line, and COM17 to COM24
for the third line. All the unused pins output
deselection waveforms. In the sleep mode (SLP = 1)
or standby mode (STB = 1), all pins output GND
level.
The CMS bit can change the shift direction of the
common signal. For example, if CMS = 0, COM1/24
is COM1. If CMS = 1, COM1/24 is COM24.
Segment output signals for segment-icon display and
character/graphics display. In the sleep mode (SLP =
1) or standby mode (STB = 1), all pins output GND
level.
The SGS bit can change the shift direction of the
segment signal. For example, if SGS = 0, SEG1/72
(96) is SEG1. If SGS = 1, SEG1/72 (96) is SEG72
(96).
Used for output from the internal operational
amplifiers when they are used (OPOFF = GND);
attach a capacitor to stabilize the output. When the
amplifiers are not used (OPOFF = V
), V1 to V5
voltages can be supplied to these pins externally.
Power supply for LCD drive. V
LCD
– GND = 6.5 V max.
V
CC
: +1.8 V to +5.5 V; GND (logic): 0 V
For R-C oscillation using an external resistor, connect
an external resistor. For R-C oscillation using an
internal resistor, connect R1–R3 to OSC2 and leave
OSC1 disconnected. For external clock supply, input
clock pulses to OSC1.
For R-C oscillation using an internal resistor, adjust
the internal resistor value. Fluctuation of the resistor
value is
±
30% of the reference value. Care must be
taken to avoid fluctuation of the frame frequency in
crystal display drive operation.
Inputs a reference voltage and supplies power to the
booster; generates the liquid crystal display drive
voltage from the operating voltage.
Vci = 0 V to 3.0 V
≤
V
Must be left disconnected when the booster is not
used.
COMS1/2,
COMS2/1
COM1/24–
COM24/1
2
O
LCD
24
O
LCD
SEG1/72–
SEG72/1
(HD66724)
72
O
LCD
SEG1/96–
SEG96/1
(HD66725)
96
V1OUT–
V5OUT
10
O or I
Open or
external
bleeder-resistor
V
LCD
V
CC
, GND
OSC1,
OSC2
4
14
2
—
—
I or O
Power supply
Power supply
Oscillation
resistor or clock
R1–R3
3
O
OSC2
Vci
5
I
Power supply
相關(guān)PDF資料
PDF描述
HD66725 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66726 Graphics LCD Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66727 Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function(帶鍵掃描功能的圖形LCD控制器/驅(qū)動器)
HD66728 112 x 80-dot Graphics LCD Controller/Driver(112 x 80點圖形LCD控制器)
HD66730 Dot-Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66724/HD66725 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HD66724RA03TA0L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER
HD66725 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:112 x 80-dot Graphics LCD Controller/Driver
HD66725A03TA0L 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD CONTROLLER
HD66726 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:128 x 128-dot Graphics LCD Controller/Driver with Four-grayscale Functions
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