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TC7129CPL 数据表(PDF) 14 Page - Microchip Technology

部件名 TC7129CPL
功能描述  4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers
PDF  24 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

TC7129CPL 数据表(HTML) 14 Page - Microchip Technology

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TC7129
DS21459B-page 14
© 2002 Microchip Technology Inc.
FIGURE 4-11:
TC7129 FUNCTIONAL BLOCK DIAGRAM
FIGURE 4-12:
INTEGRATOR BLOCK DIAGRAM
Low Battery
Continuity
Segment Drives
Backplane
Drives
Latch, Decode Display Multiplexer
Up/Down Results Counter
Sequence Counter/Decoder
Control Logic
Analog Section
OSC1
OSC2
OSC3
RANGE
L/H
CONT
V+
V-
DGND
COMMON
IN
HI
IN
LO
BUFF
DP1
DP2
UR/DP3
OR/DP4
REF HI
REF LO
INT OUT
INT IN
Annunciator
Drive
VDISP
TC7129
Common
REF HI
Buffer
Integrator
DE
ZI, X10
Comparator 1
200mV
CREF
RINT
CINT
INT1
IN HI
+
–
–
+
–
+
REF LO
DE
IN LO
–
+
DE-
DE+
DE+
DE-
100pF
V
–
+
Continuity
INT1, INT2
Continuity
Comparator
500k
Ω
REST
To Display Driver
10
pF
Comparator 2
To Digital
Section
TC7129
INT
X10



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