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| 型号： | ICM7228BIBIZ |
| 厂商： | Intersil |
| 文件页数： | 9/18页 |
| 文件大小： | 0K |
| 描述： | IC LED DISPLAY DRVR 8DGT 28-SOIC |
| 标准包装： | 260 |
| 显示器类型： | LED |
| 配置： | 7 段显示 |
| 数字或字符： | 8 位数字 |
| 电流 - 电源： | 250µA |
| 电源电压： | 4 V ~ 6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
ICM7228
TABLE 2. ICM7228B PIN ASSIGNMENTS AND DESCRIPTIONS (Continued)
PIN NO.
8
9
NAME
WRITE
MODE
FUNCTION
Input
Input
DESCRIPTION
Data Input Will Be Written to Control Register or Display RAM on Rising Edge of WRITE.
Selects Data to Be Loaded to Control Register or Display RAM: High, Loads Control Register;
Low, Loads Display RAM.
10
ID4,
(SHUTDOWN)
Input
When “MODE” Low: Display Data Input, Bit 5.
When “MODE” High: Control Bit, Low Power Mode Select: High, Normal Operation; Low,
Oscillator and Display Disabled.
11
ID1
Input
When “MODE” Low: Display Data Input, Bit 2.
When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, Bit 2, Single Digit Update
Mode.
12
ID0
Input
When “MODE” Low: Display Data Input, Bit 1.
When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, LSB, Single Digit Update
Mode.
13
ID2
Input
When “MODE” Low: Display Data Input, Bit 3.
When “MODE” High and “ID7 (DATA COMING)” Low: Digit Address, MSB, Single Digit Update
Mode.
14
ID3
Input
When “MODE” Low: Display Data Input, Bit 4.
When “MODE” High: RAM Bank Select (Decode Modes Only): High, RAM Bank A; Low, RAM
Bank B.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
DP
SEG a
SEG b
SEG d
V DD
SEG c
SEG e
SEG f
SEG g
DIGIT 8
DIGIT 2
DIGIT 5
DIGIT 7
V SS
Output
Supply
Output
Output
Supply
LED Display Decimal Point and Segments a, b, and d Drive Lines
Device Positive Power Supply Rail.
LED Display Segments c, e, f and g Drive Lines.
LED Display Digits 8, 2, 5 and 7 Drive Lines.
Device Ground or Negative Power Supply Rail.
TABLE 3. ICM7228C PIN ASSIGNMENTS AND DESCRIPTIONS
PIN NO.
1
2
3
4
5
6
7
SEG c
SEG e
SEG b
DP
DA0
DA1
ID7,
NAME
FUNCTION
Output
Input
Input
Input
DESCRIPTION
LED Display Segments c, e, band Decimal Point Drive Lines.
Digit Address Input, Bit 1 LSB.
Digit Address Input, Bit 2.
Display Decimal Point Data Input, Negative True.
(INPUT DP)
8
WRITE
Input
Data Input Will Be Written to Display RAM on Rising Edge of WRITE.
9
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