TC7129CKW Microchip Technology, TC7129CKW Datasheet - Page 4

IC ADC 4 1/2DGT LCD DVR 44-MQFP

TC7129CKW

Manufacturer Part Number
TC7129CKW
Description
IC ADC 4 1/2DGT LCD DVR 44-MQFP
Manufacturer
Microchip Technology
Datasheet

Specifications of TC7129CKW

Display Type
LCD
Configuration
7 Segment
Digits Or Characters
A/D 4.5 Digits
Current - Supply
800µA
Voltage - Supply
6 V ~ 12 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
44-MQFP, 44-PQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-

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TC7129 ELECTRICAL SPECIFICATIONS (CONTINUED)
DS21459D-page 4
TC7129
Electrical Characteristics: V+ to V– = 9V, V
Pin numbers refer to 40-pin DIP.
Symbol
Power
V
DGND
I
f
Digital
Note 1:
S
CLK
COM
Common Voltage
Common Sink Current
Common Source Current
Digital Ground Voltage
Sink Current
Supply Voltage Range
Supply Current Excluding
Common Current
Clock Frequency
V
Low Battery Flag Activation
Voltage
Continuity Comparator Threshold
Voltages
Pull-down Current
“Weak Output” Current
Sink/Source
Pin 22 Source Current
Pin 22 Sink Current
Input voltages may exceed supply voltages, provided input current is limited to ±400 A. Currents above
this value may result in invalid display readings, but will not destroy the device if limited to ±1 mA.
Dissipation ratings assume device is mounted with all leads soldered to printed circuit board.
DISP
Resistance
Parameter
REF
Min
100
2.8
4.5
6.3
= 1V, T
6
A
= +25°C, f
Typ
120
200
200
3.2
0.6
5.3
1.2
0.8
7.2
3/3
3/9
40
50
10
3
9
2
Max
CLK
360
400
3.5
5.8
1.3
7.7
12
10
= 120 kHz, unless otherwise indicated.
Unit
kHz
mA
mA
mA
mV
mV
k
V
V
V
V
A
A
A
A
A
A
V+ to pin 36, V+ to V– = 9V
V+ to V–
V+ to pin 28
V+ to V– = 9V
V
V+ to V–
V
V
Pins 37, 38, 39
Pins 20, 21 sink/source
Pin 27 sink/source
© 2006 Microchip Technology Inc.
Common = +0.1V
Common = -0.1V
DGND = +0.5V
DISP
OUT
OUT
pin 27 = High
pin 27 = Low
to V+
Test Conditions

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