ICM7244 查看數據表（PDF） - Intersil

零件编号

产品描述 (功能)

生产厂家

ICM7244

8-Character, Microprocessor Compatible, LED Display Decoder Driver

Intersil 

Typical Applications (Continued)

8-CHARACTER LED DISPLAY

ICM7244

8-CHARACTER LED DISPLAY

8-CHARACTER LED DISPLAY

8

NOTE

8

NOTE

8

NOTE

CLR

CLR

CHAR

CLR

CHAR

CLR

CHAR

SEG

SEG

SEG

+5V

SEN

DISP FULL

SEN

DISP FULL

SEN

DISP FULL

+5V

MODE

+5V

MODE

+5V

MODE

WR

VDD

+5V

WR

VDD

+5V

WR

VDD

+5V

D0 - D5

VSS

CS

D0 - D5

VSS

CS

D0 - D5

VSS

CS

DATA

BUS 6

6

6

WR

CS,

(WR)

FIRST 8 CHARACTERS

SECOND 8 CHARACTERS

NTH 8 CHARACTERS

NOTE: 17 for ICM7244.

FIGURE 6. MULTICHARACTER DISPLAY USING SEQUENTIAL ACCESS MODE

+5V

+5V

617Ω

SEG

1mA

ICM7244

2N2219

14Ω (100mAPEAK)

CHAR

rON = 4Ω

GND

14mA

2N6034

1.4APEAK

GND

+5V

617Ω

+5V

1k

+5V

1.4APEAK

2N6034

SEG

ICM7244

300Ω

rON = 4Ω

CHAR

1k

25Ω

(100mAPEAK)

2N2219

GND

1k

GND

GND

FIGURE 7A. COMMON CATHODE DISPLAY

FIGURE 7B. COMMON ANODE DISPLAY

FIGURE 7. DRIVING LARGE DISPLAYS

9

FN6675.1

January 22, 2009

Share Link: