TC7129CPL View Datasheet(PDF) - Microchip Technology

Part Name

Description

MFG CO.

TC7129CPL

4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers

Microchip Technology 

TC7129

Low Battery

Low Battery

Continuity

Continuity

BP1

BP2 Backplane

Connections

BP3

F4, E4, DP4

A4, G4, D4

B4, C4, BC4

F3, E3, DP3

A3, G3, D3

B3, C3, MINUS

Figure 4-16:

Display Segment Assignments.

b Segment

Line

BP1

All Off

a Segment

BP2

On

d, g Off

BP3

Figure 4-17:

Backplane Waveforms.

a, g On

d Off

All On

Figure 4-18:

Waveforms.

B1, C1, Continuity

A1, G1, D1

F1, E1, DP1

B2, C2, Low Battery

A2, G2, D2

F2, E2, DP2

VDD

VH

VL

VDISP

VDD

VH

VL

VDISP

VDD

VH

VL

VDISP

VDD

VH

VL

VDISP

Typical Display Output

© 2006 Microchip Technology Inc.

DS21459D-page 17

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