lCM7217BlJl Intersil Corporation, lCM7217BlJl Datasheet - Page 10

• Manufacturer Part Number: lCM7217BlJl
• Description: 4-digit Led Display, Programmable Up/down Counter
• Manufacturer: Intersil Corporation

ICM7217B
SEGMENT
ICM7217
INPUT
D
DRIVE
DRIVE
N
DIGIT
DIGIT LINE
FIGURE 13A. COMMON ANODE DISPLAY
INPUT B
INPUT
High
High
Low
Low
FIGURE 11C. CMOS OPEN DRAIN
FIGURE 12A. COMMON ANODE
V
CD4069
SS
50kΩ
V
DD
1N4148
INPUT A
High
High
V
Low
Low
DISPLAY
CONTROL
V
DD
SS
ICM7217
ICM7217B
FIGURE 11. DRIVING 3-LEVEL INPUTS OF ICM7217
2N2219
OR SIMILAR
2N6034
OR SIMILAR
FIGURE 13. DRIVING HIGH CURRENT DISPLAYS
FIGURE 12. FORCING LEADING ZERO DISPLAY
OUTPUT
Disconnected
Disconnected
Disconnected
V
DD
OUTPUT
Low
OUTPUT
ICM7217
10
ICM7217C
SEGMENT
ICM7217
INPUT
D
DRIVE
DRIVE
DIGIT
N
FIGURE 11D. CMOS THREE-STATE BUFFER
FIGURE 13B. COMMON CATHODE DISPLAY
DIGIT LINE
INPUT B
INPUT
High
High
Low
Low
FIGURE 12B. COMMON CATHODE
CD4069
V
DD
V
50kΩ
SS
1N4148
INPUT A
V
V
High
High
Low
Low
DD
SS
50kΩ
2N2219
OR SIMILAR
2N6034
OR SIMILAR
OUTPUT
Disconnected
Disconnected
DISPLAY
CONTROL
ICM7217A
ICM7217C
OUTPUT
OUTPUT
High
Low
V
DD