Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

TC14433 Datasheet(PDF) 6 Page - Microchip Technology

Part # TC14433
Description  3-1/2 Digit, Analog-to-Digital Converter
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC14433 Datasheet(HTML) 6 Page - Microchip Technology

Back Button TC14433_08 Datasheet HTML 2Page - Microchip Technology TC14433_08 Datasheet HTML 3Page - Microchip Technology TC14433_08 Datasheet HTML 4Page - Microchip Technology TC14433_08 Datasheet HTML 5Page - Microchip Technology TC14433_08 Datasheet HTML 6Page - Microchip Technology TC14433_08 Datasheet HTML 7Page - Microchip Technology TC14433_08 Datasheet HTML 8Page - Microchip Technology TC14433_08 Datasheet HTML 9Page - Microchip Technology TC14433_08 Datasheet HTML 10Page - Microchip Technology Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 24 page
background image
TC14433/A
DS21394D-page 6
© 2008 Microchip Technology Inc.
3.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
Pin No.
24-Pin PDIP,
SOIC
Pin No.
28-Pin
PLCC
Symbol
Description
12
VAG
This is the analog ground. It has a high input impedance. The pin determines
the reference level for the unknown input voltage (VX) and the reference
voltage (VREF).
23
VREF
Reference voltage – Full scale output is equal to the voltage applied to VREF.
Therefore, full scale voltage of 1.999V requires 2V reference and 199.9 mV
full scale requires a 200 mV reference. VREF functions as system reset also.
When switched to VEE, the system is reset to the beginning of the
conversion cycle.
34
VX
The unknown input voltage (VX) is measured as a ratio of the reference
voltage (VREF) in a ratiometric A/D conversion.
45
R1
This pin is for external components used for the integration function in the
dual slope conversion. Typical values are 0.1 µF (Mylar) capacitor for C1.
56
R1/C1
R1 = 470 kΩ (resistor) for 2V full scale.
67
C1
R1 = 27 kΩ (resistor) for 200 mV full scale. Clock frequency of 66 kHz gives
250 ms conversion time.
79
CO1
These pins are used for connecting the offset correction capacitor. The
recommended value is 0.1 µF.
810
CO2
These pins are used for connecting the offset correction capacitor. The
recommended value is 0.1 µF.
9
11
DU
Display update input pin. When DU is connected to the EOC output, every
conversion is displayed. New data will be strobed into the output latches
during the conversion cycle if a positive edge is received on DU, prior to the
ramp down cycle. When this pin is driven from an external source, the
voltage should be referenced to VSS.
10
12
CLK1
Clock input pins. The TC14433 has its own oscillator system clock.
Connecting a single resistor between CLK1 and CLK0 sets the clock
frequency.
11
13
CLK0
A crystal or OC circuit may be inserted in lieu of a resistor for improved
CLK1, the clock input, can be driven from an external clock source, which
need only have standard CMOS output drive. This pin is referenced to VEE
for external clock inputs. A 300 k
Ω resistor yields a clock frequency of about
66 kHz. See Section 2.0 “Typical Performance Curves”. (Also see
Figure 5-3 for alternate circuits.)
12
14
VEE
Negative power current. Connection pin for the most negative supply. Please
note the current for the output drive circuit is returned through VSS. Typical
supply current is 0.8 mA.
13
16
VSS
Negative power supply for output circuitry. This pin sets the low voltage level
for the output pins (BCD, Digit Selects, EOC, OR). When connected to
analog ground, the output voltage is from analog ground to VDD. If
connected to VEE, the output swing is from VEE to VDD. The recommended
operating range for VSS is between the VDD -3 volts and VEE.
14
17
EOC
End of conversion output generates a pulse at the end of each conversion
cycle. This generated pulse width is equal to one half the period of the
system clock.
15
18
OR
Overrange pin. Normally this pin is set high. When VX exceeds VREF the OR
is low.


Similar Part No. - TC14433_08

ManufacturerPart #DatasheetDescription
logo
TelCom Semiconductor, I...
TC14433A TELCOM-TC14433A Datasheet
149Kb / 10P
   3-1/2 DIGIT A/D CONVERTERS
logo
Microchip Technology
TC14433A MICROCHIP-TC14433A Datasheet
501Kb / 20P
   3-1/2 Digit, Analog-to-Digital Converter
2002
logo
TelCom Semiconductor, I...
TC14433AEJG TELCOM-TC14433AEJG Datasheet
149Kb / 10P
   3-1/2 DIGIT A/D CONVERTERS
logo
Microchip Technology
TC14433AEJG MICROCHIP-TC14433AEJG Datasheet
501Kb / 20P
   3-1/2 Digit, Analog-to-Digital Converter
2002
logo
TelCom Semiconductor, I...
TC14433AELI TELCOM-TC14433AELI Datasheet
149Kb / 10P
   3-1/2 DIGIT A/D CONVERTERS
More results

Similar Description - TC14433_08

ManufacturerPart #DatasheetDescription
logo
Microchip Technology
TC14433 MICROCHIP-TC14433 Datasheet
501Kb / 20P
   3-1/2 Digit, Analog-to-Digital Converter
2002
TC7136 MICROCHIP-TC7136 Datasheet
534Kb / 22P
   Low Power 3-1/2 Digit Analog-to-Digital Converter
2002
logo
TelCom Semiconductor, I...
TC7135 TELCOM-TC7135 Datasheet
224Kb / 13P
   4-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTER
logo
Microchip Technology
TC7106 MICROCHIP-TC7106 Datasheet
623Kb / 26P
   3-1/2 Digit Analog-to-Digital Converters
2002
TC7106 MICROCHIP-TC7106_06 Datasheet
534Kb / 32P
   3-1/2 Digit Analog-to-Digital Converters
2006
TC7126 MICROCHIP-TC7126_06 Datasheet
429Kb / 26P
   3-1/2 Digit Analog-to-Digital Converters
2006
TC7126 MICROCHIP-TC7126 Datasheet
553Kb / 22P
   3-1/2 Digit Analog-to-Digital Converters
2002
TC7126 MICROCHIP-TC7126_13 Datasheet
330Kb / 28P
   3-1/2 Digit Analog-to-Digital Converters
11/29/12
TC7107RCPL MICROCHIP-TC7107RCPL Datasheet
411Kb / 34P
   3-1/2 Digit Analog-to-Digital Converters
01/02/08
logo
TelCom Semiconductor, I...
TC7126 TELCOM-TC7126 Datasheet
198Kb / 13P
   3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com