HDSP-2179 Avago Technologies US Inc., HDSP-2179 Datasheet - Page 13

• Manufacturer Part Number: HDSP-2179
• Description: DISPLAY 5X7 8DIGIT .2" 32DIP ORN
• Manufacturer: Avago Technologies US Inc.
• Series: HDSP-2179r

Specifications of HDSP-2179

• Package / Case: 32-DIP
• Color: Orange
• Size / Dimension: 1.68" x 0.77" (42.59mm x 19.58mm)
• Display Type: Alphanumeric
• Number Of Digits/alpha: 8
• Digit/alpha Size: 0.20" (5mm)
• Character Format: Dot Matrix
• Character Size: 5mm
• Led Color: Orange
• Luminous Intensity: 7.5mcd
• No. Of Digits / Alpha: 8
• Display Area Width: 42.72mm
• Display Area Height: 9.91mm
• Number Of Digits: 8
• Illumination Color: Orange
• Wavelength: 602 nm
• Operating Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 55 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Common Pin: -
• Lead Free Status / Rohs Status: Details

Figure 5. Logic levels to access the flash RAM.
13
CONTROL SIGNALS
FLASH RAM ADDRESS
FLASH RAM DATA FORMAT
0 = LOGIC 0; 1 = LOGIC 1; X = DO NOT CARE
Control Word Register
Brightness (Bits 0-2)
Flash Function (Bit 3)
RST
D
FL
1
0
X
7
CE
A
D
X
X
0
4
6
WR
A
D
0
0
1
1
X
X
3
5
RD
A
D
0
1
0
1
X
2
4
CHARACTER
ADDRESS
UNDEFINED
WRITE TO DISPLAY
READ FROM DISPLAY
UNDEFINED
A
D
X
1
3
A
D
X
0
2
000 = LEFT MOST
111 = RIGHT MOST
D
X
1
D
0
1
0
REMOVE FLASH AT
SPECIFIED DIGIT LOCATION
STORE FLASH AT
SPECIFIED DIGIT LOCATION
Blink Function (Bit 4)
Table 2. Current Requirements at Different Brightness Levels
Symbol
I
DD
(V)
D
0
0
0
0
1
1
1
2
D
0
0
1
1
0
0
1
1
Figure 6. Logic levels to access the control word register.
CONTROL SIGNALS
CONTROL WORD ADDRESS
RST
FL
D
C
0 NORMAL OPERATION
1 CLEAR FLASH AND CHARACTER RAMS
CONTROL WORD DATA FORMAT
0 = LOGIC 0; 1 = LOGIC 1; X = DO NOT CARE
1
1
7
D
0
1
0
1
0
1
0
0
CE
A
D
0
1
S
0
1
4
6
WR
A
D
S
X NORMAL OPERATION; X IS IGNORED
X START SELF TEST; RESULT GIVEN IN X
0
0
1
1
0
% Brightness
100
80
53
40
27
20
13
3
5
X = 0 FAILED
RD
BL
A
D
0
1
0
1
X
0 DISABLE BLINKING
1 ENABLE BLINKING
2
4
UNDEFINED
WRITE TO DISPLAY
READ FROM DISPLAY
UNDEFINED
A
D
X
F
0 DISABLE FLASH
1 ENABLE FLASH
1
3
X = 1 PASSED
A
D
B
X
0
0
0
0
1
1
1
1
0
2
25 C Typ.
200
160
106
80
54
40
26
D
B
0
0
1
1
0
0
1
1
1
D
B
0
1
0
1
0
1
0
1
0
100%
80%
53%
40%
27%
20%
13%
0%
BRIGHTNESS
CONTROL
LEVELS
Units
mA
mA
mA
mA
mA
mA
mA