ICL7129(1997) 查看數據表（PDF） - Intersil

零件编号

产品描述 (功能)

生产厂家

ICL7129
(Rev.:1997)

41/2 Digit LCD, Single-Chip A/D Converter

Intersil 

Functional Block Diagram

OSC1

OSC2

OSC3

ICL7129

LOW BATTERY CONTINUITY

SEGMENT DRIVES

BACKPLANE

DRIVES

ANNUNCIATOR DRIVE

LATCH, DECODE DISPLAY MULTIPLEXER

VDISP

UP/DOWN RESULTS COUNTER

SEQUENCE COUNTER/DECODER

CONTROL LOGIC

ANALOG SECTION

RANGE L/H CONT

V+

V- DGND

Typical Application Schematic

LOW BATTERY CONTINUITY

OR UR DP2 DP1

DP3 DP3

V+

5pF (MICA)

ICL7129

120kHz

560pF

1.2kΩ

0.1µF

+

1.0µF

150kΩ

+

10kΩ

9V

-

20K

0.1µF

100kΩ

-

+

VIN

ICL8069

270K

10pF (MICA)

V+

6.8µF

3-32

Share Link: