參數(shù)資料
型號(hào)： 44780
廠商： Hitachi,Ltd.
英文描述： Dot Matrix Liquid Crystal Display Controller/Driver
中文描述： 點(diǎn)陣式液晶顯示控制器/驅(qū)動(dòng)器
文件頁(yè)數(shù)： 18/59頁(yè)
文件大?。?/td> 316K
代理商： 44780
HD44780U
25
Table 6
Instructions (cont)
Code
Execution Time
(max) (when f
cp or
Instruction RS
R/
W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Description
f
OSC is 270 kHz)
Write data
to CG or
DDRAM
1
0
Write data
Writes data into DDRAM or
CGRAM.
37
s
t
ADD = 4 s*
Read data
from CG or
DDRAM
1
Read data
Reads data from DDRAM or
CGRAM.
37
s
t
ADD = 4 s*
I/D
= 1:
Increment
I/D
= 0:
Decrement
S
= 1:
Accompanies display shift
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 × 8 dots
BF
= 1:
Internally operating
BF
= 0:
Instructions acceptable
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 fOSC is
250 kHz,
37
s ×
= 40
s
270
250
Note:
— 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.
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
ADD
cp
OSC
Figure 10 Address Counter Update
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參數(shù)描述
447-800 功能描述:環(huán)形MIL規(guī)格后蓋 RoHS:否 制造商:Amphenol PCD MIL 類(lèi)型:MIL-DTL-38999 III, IV 系列:AS85049 產(chǎn)品類(lèi)型:Environmental EMI/RFI Backshells 外殼類(lèi)型:Straight 外殼大小:18 外殼材質(zhì):Aluminum Alloy
447802-1 制造商:TE Connectivity 功能描述:SCREW 4-40 - Bulk
447-804M0503 功能描述:環(huán)形MIL規(guī)格后蓋 RoHS:否 制造商:Amphenol PCD MIL 類(lèi)型:MIL-DTL-38999 III, IV 系列:AS85049 產(chǎn)品類(lèi)型:Environmental EMI/RFI Backshells 外殼類(lèi)型:Straight 外殼大小:18 外殼材質(zhì):Aluminum Alloy
447-804NF0503K 功能描述:環(huán)形MIL規(guī)格后蓋 RoHS:否 制造商:Amphenol PCD MIL 類(lèi)型:MIL-DTL-38999 III, IV 系列:AS85049 產(chǎn)品類(lèi)型:Environmental EMI/RFI Backshells 外殼類(lèi)型:Straight 外殼大小:18 外殼材質(zhì):Aluminum Alloy
447-804NF0603B 功能描述:環(huán)形MIL規(guī)格后蓋 RoHS:否 制造商:Amphenol PCD MIL 類(lèi)型:MIL-DTL-38999 III, IV 系列:AS85049 產(chǎn)品類(lèi)型:Environmental EMI/RFI Backshells 外殼類(lèi)型:Straight 外殼大小:18 外殼材質(zhì):Aluminum Alloy
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