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參數(shù)資料
| 型號(hào)： | ICM7228BIBIZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 顯示驅(qū)動(dòng)器 |
| 英文描述： | 8-Digit, Microprocessor-Compatible, LED Display Decoder Driver |
| 中文描述： | LED DISPLAY DRIVER, PDSO28 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MS-013AE, SOIC-28 |
| 文件頁(yè)數(shù)： | 12/18頁(yè) |
| 文件大?。?/td> | 310K |
| 代理商： | ICM7228BIBIZ |
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12
ICM7228
Display Formats
The ICM7228A and ICM7228B have three possible display
formats; Hexadecimal, Code B and No Decode. Table 5
shows the character sets for the decode modes and their
corresponding input code.
The display formats of the ICM7228A/B are selected by
writing data to bits ID4, ID5 and ID6 of the Control Register
(See Table 1 and 2 for input Definitions). Hexadecimal and
Code B data is entered via ID0-lD3 and ID7 controls the
decimal point.
TABLE 5. DISPLAY CHARACTER SETS
The No Decode mode of the ICM7228A and ICM7228B
allows the direct segment-by-segment control of all 64
segments driven by the device. In the No Decode mode, the
input data directly control the outputs as shown in Table 6.
An input high level turns on the respective segment, except
for the decimal point, which is turned on by an input low level
on ID7.
The No Decode mode can be used in different applications
such as bar graph or status panel driving where each
segment controls an individual LED.
The ICM7228C has only the Hexadecimal and Code B
character sets. The HEXA/CODE B/SHUTDOWN input, pin
9, requires a three level input. Pin 9 selects the Hexadecimal
format when pulled high, the Code B format when floating or
driven to mid-supply, and the shutdown mode when pulled
low (See Table 3). Table 5 also applies to the ICM7228C.
Shutdown and Display Banking
When shutdown, the ICM7228 enters a low power standby
mode typically consuming only 1
μ
A of supply current for the
ICM7228A/B and 2.5
μ
A for the ICM7228C. In this mode the
ICM7228 turns off the multiplex scan oscillator as well as the
digit and segment drivers. However, input data can still be
INPUT DATA CODE
DISPLAY CHARACTERS
ID3
ID2
ID1
ID0
HEXADECIMAL
CODE B
0
0
0
0
0
0
0
0
0
1
1
1
0
0
1
0
2
2
0
0
1
1
3
3
0
1
0
0
4
4
0
1
0
1
5
5
0
1
1
0
6
6
0
1
1
1
7
7
1
0
0
0
8
8
1
0
0
1
9
9
1
0
1
0
A
-
1
0
1
1
b
E
1
1
0
0
C
H
1
1
0
1
d
L
1
1
1
0
E
P
1
1
1
1
F
(Blank)
TABLE 5. DISPLAY CHARACTER SETS (Continued)
INPUT DATA CODE
DISPLAY CHARACTERS
ID3
ID2
ID1
ID0
HEXADECIMAL
CODE B
I/O OR
MEMORY
WRITE PULSE
DECODER
ENABLE
ADDRESS
DECODER
ID0 - ID3
AND ID7
INTERSIL
ICM7228C
SEGMENTS
DRIVE
WRITE
DA0 - DA2
DIGITS
DRIVE
A0 - A2
DEVICE SELECT
AND
WRITE PULSE
LED DISPLAY
ADDRESS BUS A0 - A15
A3 - A15
DATA BUS D0 - D7
M
5
FIGURE 10. ICM7228C MICROPROCESSOR SYSTEM INTERFACING
TABLE 6. NO DECODE SEGMENT LOCATIONS
DATA
INPUT
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
Controlled
Segment
Decimal
Point
a
b
c
e
g
f
d
a
b
c
d
f
g
e
DP
FIGURE 11. DIGITS SEGMENT ASSIGNMENTS
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICM7228BIJI | 制造商:Maxim Integrated Products 功能描述:8 DIGIT LED DISPLAY DRIVER - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ICM7228BIPI | 功能描述:LED顯示驅(qū)動(dòng)器 DISPLAY 8 DIG LED DRIVER 28CDIP IND RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| ICM7228BIPI WAF | 制造商:Harris Corporation 功能描述: |
| ICM7228BIPIZ | 功能描述:LED顯示驅(qū)動(dòng)器 W/ANNEAL DISPLAY 8 DIG LED DRVR IND RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| ICM7228BMJ/883B WAF | 制造商:Harris Corporation 功能描述: |
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