TC7129 datasheet(4/15 Pages) TELCOM

No de pièce	TC7129

Description	4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER WITH ON-CHIP LCD DRIVERS

Download	15 Pages

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Fabricant	TELCOM [TelCom Semiconductor, Inc]

Site Internet	http://www.telcom-semi.com

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TELCOM SEMICONDUCTOR, INC.

TC7129

4-1/2 DIGIT ANALOG-TO-DIGITAL

CONVERTER WITH ON-CHIP LCD DRIVERS

PIN DESCRIPTIONS

Pin No.

40-Pin

44-Pin

TC7129CPL

TC7129CKW

TC7129CLW

Symbol

Function

1

40

2

OSC1

Input to first clock inverter.

2

41

3

OSC3

Output of second clock inverter.

3

ANNUNCIATOR

Backplane square-wave output for driving annunciators.

443

5

B1, C1, CONT

Output to display segments.

544

6

A1, G1, D1

Output to display segments.

61

7

F1, E1, DP1

Output to display segments.

72

8

B2, C2, LO BATT

Output to display segments.

83

9

A2, G2, D2

Output to display segments.

94

10

F2, E2, DP2

Output to display segments.

10

5

11

B3, C3, MINUS

Output to display segments.

11

7

13

A3, G3, D3

Output to display segments.

12

8

14

F3, E3, DP3

Output to display segments.

13

9

15

B4, C4, BC5

Output to display segments.

14

10

16

A4, D4, G4

Output to display segments.

15

11

17

F4, E4, DP4

Output to display segments.

16

12

18

BP3

Backplane #3 output to display.

17

13

19

BP2

Backplane #2 output to display.

18

14

20

BP1

Backplane #1 output to display.

19

15

21

VDISP

Negative rail for display drivers.

20

16

22

DP4/OR

Input: When HI, turns on most significant decimal point.

Output: Pulled HI when result count exceeds

±19,999.

21

18

24

DP3/UR

Input: Second most significant decimal point on when HI.

Output: Pulled HI when result count is less than

±1000.

22

19

25

LATCH/HOLD

Input: When floating, ADC operates in the free-run mode.

When pulled HI, the last displayed reading is held. When

pulled LO, the result counter contents aren shown

inincrementing during the deintegrate phase of cycle.

Output: Negative-going edge occurs when the data latches

are updated. Can be used for converter status signal.

23

20

26

V–

Negative power supply terminal.

24

27

V+

Positive power supply terminal and positive rail for display

drivers.

25

21

28

INT IN

Input to integrator amplifier.

26

23

29

INT OUT

Output of integrator amplifier.

27

24

30

CONTINUITY

Input: When LO, continuity flag on the display is OFF.

When HI, continuity flag is ON.

Output: HI when voltage between inputs is less than +200

mV. LO when voltage between inputs is more than +200

mV.

28

25

31

COMMON

Sets common-mode voltage of 3.2V below V+ for DE,

10X, etc. Can be used as preregulator for external

reference.

29

26

32

C

+

REF

Positive side of external reference capacitor.

30

27

33

C–REF

Negative side of external reference capacitor.

31

29

35

BUFFER

Output of buffer amplifier.

32

30

36

IN LO

Negative input voltage terminal.

33

31

37

IN HI

Positive input voltage terminal.

Numéro de pièce similaire - TC7129

Fabricant	No de pièce	Fiches technique	Description
Microchip Technology	TC7129	550Kb / 24P	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers 2002
	TC7129	562Kb / 28P	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers 2006
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	TC7129CKW	550Kb / 24P	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers 2002
	TC7129CKW	562Kb / 28P	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers 2006

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Description similaire - TC7129

Fabricant	No de pièce	Fiches technique	Description
Microchip Technology	TC7129	562Kb / 28P	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers 2006
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	TC7129	550Kb / 24P	4-1/2 Digit Analog-to-Digital Converters with On-Chip LCD Drivers 2002
TelCom Semiconductor, I...	TC7135	224Kb / 13P	4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
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Microchip Technology	TC14433	401Kb / 24P	3-1/2 Digit, Analog-to-Digital Converter 2008
Texas Instruments	ICL7135C	448Kb / 16P	[Old version datasheet] 4 1/2-DIGIT PRECISION ANALOG-TO-DIGITAL CONVERTERS
Microchip Technology	TC7136	534Kb / 22P	Low Power 3-1/2 Digit Analog-to-Digital Converter 2002
Teledyne Technologies I...	TC8750	537Kb / 8P	3-1/2 DIGIT Analog-to-digital converter with parallel bdc output
Microchip Technology	TC818A	583Kb / 24P	Auto-Ranging Analog-to-Digital Converter with 3-1/2 Digit Display 2002

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TC7129 Fiches technique(PDF) 4 Page - TelCom Semiconductor, Inc

TC7129 Fiches technique(HTML) 4 Page - TelCom Semiconductor, Inc

Numéro de pièce similaire - TC7129

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