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參數(shù)資料
| 型號： | lCM7217BlJl |
| 廠商： | Intersil Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | 4-Digit LED Display, Programmable Up/Down Counter |
| 中文描述： | 4位LED顯示，可編程加/減計數(shù)器 |
| 文件頁數(shù)： | 9/19頁 |
| 文件大?。?/td> | 137K |
| 代理商： | LCM7217BLJL |
9-20
INPUT
OUTPUT
INPUT
OUTPUT
High
High
High
Disconnected
Low
Disconnected
Low
High
FIGURE 11A. CMOS INVERTER
FIGURE 11B. CMOS INVERTER
INPUT B
INPUT A
OUTPUT
INPUT B
INPUT A
OUTPUT
High
High
Low
High
High
Disconnected
High
Low
Disconnected
High
Low
Disconnected
Low
High
Disconnected
Low
High
High
Low
Low
Disconnected
Low
Low
Low
FIGURE 11C. CMOS OPEN DRAIN
FIGURE 11D. CMOS THREE-STATE BUFFER
FIGURE 11. DRIVING 3-LEVEL INPUTS OF ICM7217
INPUT
CD4069
1N4148
OUTPUT
INPUT
CD4069
OUTPUT
1N4148
INPUT A
CD74HC03
OUTPUT
INPUT B
INPUT A
CD4502B
OUTPUT
INPUT B
FIGURE 12A. COMMON ANODE
FIGURE 12B. COMMON CATHODE
FIGURE 12. FORCING LEADING ZERO DISPLAY
FIGURE 13A. COMMON ANODE DISPLAY
FIGURE 13B. COMMON CATHODE DISPLAY
FIGURE 13. DRIVING HIGH CURRENT DISPLAYS
D
N
DIGIT LINE
V
DD
50k
DISPLAY
CONTROL
ICM7217
ICM7217B
D
N
DIGIT LINE
V
DD
DISPLAY
CONTROL
ICM7217A
ICM7217C
50k
50k
V
DD
ICM7217
ICM7217B
DIGIT
DRIVE
SEGMENT
DRIVE
V
SS
V
DD
2N2219
OR SIMILAR
2N6034
OR SIMILAR
V
SS
V
DD
ICM7217
ICM7217C
SEGMENT
DRIVE
DIGIT
DRIVE
V
SS
V
SS
2N6034
OR SIMILAR
2N2219
OR SIMILAR
V
DD
ICM7217
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