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參數(shù)資料
| 型號： | HD66702 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dot Matrix Liquid Crystal Display Controller/Driver(點陣液晶顯示控制器/驅(qū)動器) |
| 中文描述： | 點陣式液晶顯示控制器/驅(qū)動器（點陣液晶顯示控制器/驅(qū)動器） |
| 文件頁數(shù)： | 15/69頁 |
| 文件大?。?/td> | 352K |
| 代理商： | HD66702 |
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HD66702/HD66701
15
Pin Functions
Table 1
Pin Functional Description
Signal
I/O
Device
Interfaced with
Function
RS
I
MPU
Selects registers
0: Instruction register (for write)
Busy flag: address counter (for read)
1: Data register (for write and read)
R/
W
I
MPU
Selects read or write
0: Write
1: Read
E
I
MPU
Starts data read/write
DB4 to DB7
I/O
MPU
Four high order bidirectional tristate data bus pins. Used
for data transfer between the MPU and the HD66701/2.
DB7 can be used as a busy flag.
DB0 to DB3
I/O
MPU
Four low order bidirectional tristate data bus pins. Used
for data transfer between the MPU and the HD66701/2.
These pins are not used during 4-bit operation.
CL1 (HD66702)
O
Extension driver
Clock to latch serial data D sent to the extension driver
CL2 (HD66702)
O
Extension driver
Clock to shift serial data D
M (HD66702)
O
Extension driver
Switch signal for converting the liquid crystal drive
waveform to AC
D (HD66702)
O
Extension driver
Character pattern data corresponding to each segment
signal
COM1 to COM16
O
LCD
Common signals that are not used are changed to non-
selection waveforms. COM9 to COM16 are non-
selection waveforms at 1/8 duty factor and COM12 to
COM16 are non-selection waveforms at 1/11 duty factor.
SEG1 to SEG100
(HD66702)
SEG1 to SEG80
(HD66701)
O
LCD
Segment signals
V1 to V5
—
Power supply
Power supply for LCD drive
V
CC
, GND
TEST
—
Power supply
V
CC
: +5V or +3V, GND: 0V
Test pin, which must be grounded
I
—
EXT
I
—
0: Enables extension driver control signals CL1, CL2,
M, and D to be output from its corresponding pins.
1: Drives CL1, CL2, M, and D as tristate, lowering
power dissipation.
OSC1, OSC2
—
—
Pins for connecting the registers of the internal clock
oscillation. When the pin input is an external clock, it
must be input to OSC1.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66702R | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HD66727A04TA0L | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HD66720 | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HD66727A03TA0L | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HD66705U | Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver(圖形LCD控制器/驅(qū)動器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66702R | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function |
| HD66702RA00F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66702RA00FL | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66702RA01F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66702RA02F | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:IC-SM-LCD CONTROLLER |
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