參數(shù)資料
型號: HDSP-2133
英文描述: Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5 x 7 Alphanumeric Displays for Military Applications(軍用的八字符5.0 mm (0.2英寸)玻璃/陶瓷智能 5 x 7文字?jǐn)?shù)字顯示器)
中文描述: 八字5.0毫米(0.2英寸)玻璃/陶瓷智能5 × 7的軍事應(yīng)用字母數(shù)字顯示器(軍用的八字符5.0毫米(0.2英寸)玻璃/陶瓷智能5 × 7文字?jǐn)?shù)字顯示器)
文件頁數(shù): 9/16頁
文件大?。?/td> 319K
代理商: HDSP-2133
9
Electrical Description
Pin Function
RESET (RST, pin 5)
Reset initializes the display.
FLASH (FL, pin 27)
FL low indicates an access to the Flash RAM and is unaffected by the
state of address lines A
3
-A
4
.
ADDRESS INPUTS
(A
0
-A
4
, pins 28-32)
Each location in memory has a distinct address. Address inputs (A
0
-A
2
)
select a specific location in the Character RAM, the Flash RAM or a
particular row in the UDC (User-Defined Character) RAM. A
3
-A
4
are
used to select which section of memory is accessed. Table 1 shows the
logic levels needed to access each section of memory.
Table 1. Logic Levels to Access Memory
FL
A
4
A
3
0
X
X
Section of Memory
A
2
Character Address
A
1
A
0
Flash RAM
1
0
0
UDC Address Register
Don't Care
1
0
1
UDC RAM
Row Address
1
1
0
Control Word Register
Don't Care
1
1
1
Character RAM
Character Address
CLOCK SELECT
(CLS, pin 1)
This input is used to select either an internal (CLS = 1) or external (CLS = 0)
clock source.
CLOCK INPUT/OUTPUT
(CLK, pin 2)
Outputs the master clock (CLS = 1) or inputs a clock (CLS = 0) for slave
displays.
WRITE (WR, pin 3)
Data is written into the display when the WR input is low and the
CE input is low.
CHIP ENABLE (CE, pin 4)
This input must be at a logic low to read or write data to the display and
must go high between each read and write cycle.
READ (RD, pin 6)
Data is read from the display when the RD input is low and the CE
input is low.
DATA Bus (D
0
-D
7
,
pins 11-14, 19-22)
The Data bus is used to read from or write to the display.
GND
(SUPPLY)
(pin 17)
GND
(LOGIC)
(pin 18)
V
DD(POWER)
(pin 16)
This is the analog ground for the LED drivers.
This is the digital ground for internal logic.
This is the positive power supply input.
相關(guān)PDF資料
PDF描述
HDSP-2179 Eight Character 5.0 mm (0.2 inch) Glass/Ceramic Intelligent 5 x 7 Alphanumeric Displays for Military Applications(軍用的八字符5.0 mm (0.2英寸)玻璃/陶瓷智能 5 x 7文字?jǐn)?shù)字顯示器)
HDSP-2301 Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays(四字符5.0 mm (0.20英寸) 5 x 7數(shù)字文字顯示器)
HDSP-2302 Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays(四字符5.0 mm (0.20英寸) 5 x 7數(shù)字文字顯示器)
HDSP-2303 Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays(四字符5.0 mm (0.20英寸) 5 x 7數(shù)字文字顯示器)
HDSP-2351 Extended Temperature Four Character 5.0 mm (0.20 Inch) 5 x 7 Alphanumeric Display for Sunlight Viewable Applications(應(yīng)用于日光觀察的擴(kuò)展溫度四字符5.0 mm (0.20 英寸) 5 x 7 文字?jǐn)?shù)字顯示器)
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