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參數(shù)資料
| 型號(hào)： | HD66701 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器) |
| 中文描述： | 點(diǎn)陣式液晶顯示控制器/驅(qū)動(dòng)器（點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器） |
| 文件頁(yè)數(shù)： | 34/69頁(yè) |
| 文件大?。?/td> | 352K |
| 代理商： | HD66701 |
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HD66702/HD66701
34
Table 7
Instructions (cont)
Code
Execution Time
(max) (when f
cp
or
f
OSC
is 320 kHz)
Instruction RS
R/
W
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Description
Write data
to CG or
DDRAM
1
0
Write data
Writes data into DDRAM
or CGRAM.
31
μ
s
t
ADD
= 4.7
μ
s*
Read data
from CG or
DDRAM
1
1
Read data
Reads data from DDRAM
or CGRAM.
31
μ
s
t
ADD
= 4.7
μ
s*
I/D
I/D
S
S/C = 1: Display shift
S/C = 0:
Cursor move
R/L = 1:
Shift to the right
R/L = 0:
Shift to the left
DL
= 1:
8 bits, DL = 0: 4 bits
N
= 1:
2 lines, N = 0: 1 line
F
= 1:
5
×
10 dots, F = 0: 5
×
7 dots
BF
= 1:
Internally operating
BF
= 0: Instructions acceptable
— indicates no effect.
*
After execution of the CGRAM/DDRAM data write or read instruction, the RAM address counter
is incremented or decremented by 1. The RAM address counter is updated after the busy flag
turns off. In Figure 10, t
ADD
is the time elapsed after the busy flag turns off until the address
counter is updated.
= 1:
= 0:
= 1:
Increment
Decrement
Accompanies display shift
DDRAM: Display data
RAM
CGRAM: Character
generator RAM
ACG: CGRAM address
ADD: DDRAM address
(corresponds to
cursor address)
AC:
Address counter
used for both DD and
CGRAM addresses
Execution time
changes when
frequency changes
Example:
When f
cp
or f
OSC
is 270 kHz,
3 = 37
270
31
μ
s
×
μ
s
Note:
Busy state
Busy signal
(DB7 pin)
Address counter
(DB0 to DB6 pins)
t
ADD
A
A + 1
Note: t depends on the operation frequency
t = 1.5/(f or f ) seconds
Figure 10 Address Counter Update
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|---|---|
| HD66702 | Dot Matrix Liquid Crystal Display Controller/Driver(點(diǎn)陣液晶顯示控制器/驅(qū)動(dòng)器) |
| 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 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66702 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| 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 |
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