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Número de pieza
componentes Descripción
TC7129CLW Ver la hoja de datos (PDF) - Microchip Technology
Número de pieza
componentes Descripción
Fabricante
TC7129CLW
4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
Microchip Technology
TC7129CLW Datasheet PDF : 28 Pages
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TC7129
Low Battery
Continuity
TC7129
OSC1
OSC2
OSC3
Segment Drives
Backplane
Drives
Annunciator
Drive
Latch, Decode Display Multiplexer
V
DISP
Up/Down Results Counter
Sequence Counter/Decoder
Control Logic
RANGE
L/H
CONT
V+
V–
DGND
Analog Section
DP
1
DP
2
UR/DP
3
OR/DP
4
REF HI
REF LO
INT OUT
INT IN
Figure 4-11:
COMMON
IN IN
HI LO
TC7129 Functional Block Diagram.
C
REF
REF HI
REF LO
R
INT
BUFF
C
INT
IN HI
DE
INT
1
DE-
DE
DE+
–
+
Buffer
Common
DE+
DE–
ZI, X10
IN LO
INT
1
,
INT
2
Continuity
–V+
200 mV
INT
REST
–
500 k
Ω
+
Continuity
Comparator
Figure 4-12:
Integrator Block Diagram.
Integrator
10
–
pF
+
100 pF
X10
Comparator 1
+
–
TC7129
To Display Driver
To Digital
Section
Comparator 2
DS21459D-page 14
©
2006 Microchip Technology Inc.
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