參數(shù)資料
型號: HDSP-0981
元件分類: 顯示用LED
英文描述: 4X7 DOT MATRIX DISPLAY, HIGH PERFORMANCE GREEN, 7.4 mm
封裝: HERMETIC SEALED, GLASS PACKAGE-8
文件頁數(shù): 3/8頁
文件大?。?/td> 203K
代理商: HDSP-0981
3
Figure 1. Timing diagram.
Figure 2. Block diagram.
t
SETUP
t
HOLD
t
W
t
TLH
DATAINPUT
(LOWLEVELDATA)
1.5V
1.5V
1.5V
1.5V
1.5V
1.5V
10%
90%
DATAINPUT
(HIGHLEVELDATA)
ENABLE
INPUT
LATCH
MEMORY
4
6
4
DP
DP
3
X8
2
X4
1
X2
8
5
7
BLANKING
(3)
CONTROL
GROUND
DP
(2)
INPUT
LOGIC
ENABLE
V
CC
X1
MATRIX
DECODER
LED
MATRIX
DRIVER
LED
MATRIX
TRUTHTABLE
X
8
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
X
4
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
X
2
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
X
1
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
ON
OFF
LOADDATA
LATCHDATA
DISPLAY–ON
DISPLAY–OFF
BCDDATA
[1]
NUMERIC
DECIMALPT.
[2]
V
DP
=L
V
DP
=H
V
E
V
E
V
B
V
B
=L
=H
=L
=H
ENABLE
[1]
BLANKING
[3]
(BLANK)
(BLANK)
(BLANK)
(BLANK)
HEXADECIMAL
NOTES:
1. H=LOGICHIGH;L=LOGICLOW.WITHTHEENABLEINPUTAT
LOGICHIGH,CHANGESINBCDINPUTLOGICLEVELSHAVENO
EFFECTUPONDISPLAYMEMORY,DISPLAYEDCHARACTER,ORDP.
2. THEDECIMALPOINTINPUT,DP,PERTAINSONLYTOTHE
NUMERICDISPLAYS.
3. THEBLANKINGCONTROLINPUT,B,PERTAINSONLYTOTHE
HEXADECIMALDISPLAYS.BLANKINGINPUTHASNOEFFECT
UPONDISPLAYMEMORY.
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