TC14433AEPG Microchip Technology, TC14433AEPG Datasheet
TC14433AEPG
Specifications of TC14433AEPG
Available stocks
Related parts for TC14433AEPG
TC14433AEPG Summary of contents
Page 1
... EOC © 2008 Microchip Technology Inc. TC14433/A Description The TC14433 is a low-power, high-performance, monolithic CMOS 3-1/2 digit A/D converter. The TC14433 combines both analog and digital circuits on a single IC, thus minimizing the number of external components. This dual slope A/D converter provides automatic polarity and zero correction with the addition of two external resistors and two capacitors ...
Page 2
... DS21394D-page 2 -5V +5V +5V +5V 0.1 µF 0.1 µ 4543B 13 - 1413 -5V -5V -5V -5V MPS-A12 6 - kΩ + 14013B µ +5V -5V - Segment Resistors 150Ω ( Minus Sign 200Ω Plus Sign 110Ω Common Anode Led Display 0.1 µF MPS-A12 (4) © 2008 Microchip Technology Inc. ...
Page 3
... The LSD stability for 200 mV scale is defined as the range that the LSD will occupy 95% of the time. 3: Pin numbers refer to 24-pin PDIP. © 2008 Microchip Technology Inc. † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...
Page 4
... Source — 0V 0. Sink — -5V -4.5V Sink OL — kHz R = 300 kΩ C ±1 µA — — 3 7 — — 3 7 — mV 2V, REF -5V. Max Units Conditions +85 °C Note °C — °C/W — °C/W — °C/W — °C/W © 2008 Microchip Technology Inc. ...
Page 5
... R - CLOCK FREQUENCY RESISTOR C CLOCK FREQUENCY CONVERSION RATE = 16,400 CLOCK FREQUENCY MULTIPLEX RATE = 80 FIGURE 2-3: Clock Frequency vs. Resistor ( © 2008 Microchip Technology Inc. = -5V 0.1 µF, (Mylar 0.1 µ Typical Quiescent Power Supply Current vs.Temp -40 FIGURE 2-4: Current vs. Ambient Temperature. – ...
Page 6
... This generated pulse width is equal to one half the period of the system clock. Overrange pin. Normally this pin is set high. When V is low. ) and the reference X . REF functions as system reset also. REF . 1 and CLK sets the clock Typical The recommended volts and exceeds V the OR X REF © 2008 Microchip Technology Inc. ...
Page 7
... NC — © 2008 Microchip Technology Inc. Description Digit select pin. The digit select output goes high when the respective digit is selected. The MSD (1/2 digit turns on immediately after an EOC pulse). The remaining digits turn on in sequence from MSD to LSD. To ensure that the BCD data has settled, an inter digit blanking time of two clock periods is included ...
Page 8
... The results of the A/D conversion cycle are determined in this portion of the conversion cycle. ), which compen the input to the X Figure 4-2 shows the equivalent C 1 Integrator R Comparator 1 – – Equivalent Circuit Diagrams © 2008 Microchip Technology Inc. ...
Page 9
... CLK 1 CLK 0 Clock 1s' Control Logic Display 9 14 Update DU EOC FIGURE 4-3: Functional Block Diagram. © 2008 Microchip Technology Inc. 20-23 Multiplexer 16 -19 Latches Polarity Detect 10s' 100s' 1,000s' TC14433/A Overflow CMOS Analog Subsystem End of Conversion Integrator Offset TC14433/A Q – Q3 BDC Data DS 1 – ...
Page 10
... Display is blanked during the overrange condition. 5-1). TRUTH TABLE BDC to 7-Segment Decoding Blank Blank Blank Blank – 1 Hook only segments 0 – and c to MSD 7 – – the type → UR. 3 © 2008 Microchip Technology Inc. ...
Page 11
... IN TC14433 V OUT REF kΩ 1 µ EOE 14013B 14070B 1 1/2 Digit 14013B 1/4 14070B Minus Sign +V FIGURE 5-1: 3-1/2 Digit Voltmeter with LCD Display. © 2008 Microchip Technology Inc. 0.1 µ 300 kΩ Plus Sign 14543B 14543B + TC14433/A C 14024B -V R 14070B 1/4 ...
Page 12
... Q TC14433 B 1 I4511B + EE** +5V (Minus) Minus Control < 200 pF 2 Resitor Network or Individual Resistor Common Cathode Led Display 75492 OR 1413* Digit Drivers (B) LC Oscillator Circuit 10 CLK 1 C TC14433 11 CLK ------------------ 2π LC For and C = 0.01 µF @ 22.5 kHz © 2008 Microchip Technology Inc. ...
Page 13
... EOC 1/2 Clock Cycle 18 Clock Cycles DS 1 1/2 Digit (MSD) 2 Clock Cycles LCD FIGURE 5-4: Digit Select Timing Diagram. © 2008 Microchip Technology Inc. TC14433/A ª 16,400 Clock Cycles Between EOC Pulses DS21394D-page 13 ...
Page 14
... In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. DS21394D-page 14 Example TC14433EPG^^ 0814256 Example TC14433EOG^^ 0814256 Example: TC14433 e 3 ELI^^ 0814256 © 2008 Microchip Technology Inc. ...
Page 15
... N NOTE © 2008 Microchip Technology Inc. TC14433 DS21394D-page 15 ...
Page 16
... TC14433 NOTE DS21394D-page α φ β © 2008 Microchip Technology Inc. c ...
Page 17
... D D1 NOTE © 2008 Microchip Technology Inc. CH2 x 45° CH1 x 45° CH3 x 45° TC14433 DS21394D-page 17 ...
Page 18
... Component Taping Orientation for 28-Lead PLCC Devices Carrier Tape, Number of Components Per Reel and Reel Size Package Carrier Width (W) 24-Lead PLCC 24 mm DS21394D-page 18 Standard Reel Component Orientation for 713 Suffix Device Pitch (P) Part Per Full Reel 16 mm 750 © 2008 Microchip Technology Inc. Reel Size 330 mm ...
Page 19
... Added Package Outline Drawings. 4. Added Appendix A: “Revision History” 5. Added “Product Identification System”. Revision C (January 2006) • Undocumented changes Revision B (May 2002) • Undocumented changes Revision A (March 2001) • Original Release of this Document. © 2008 Microchip Technology Inc. TC14433/A DS21394D-page 19 ...
Page 20
... TC14433/A NOTES: DS21394D-page 20 © 2008 Microchip Technology Inc. ...
Page 21
... TC14433TEOG: Tape and Reel, 24-LD SOIC package. a) TC14433AELI: 28LD PLCC package. b) TC14433ATELI: Tape and Reel, 28LD PLCC package. c) TC14433AEPG: 24LD PDIP package. d) TC14433ATEPG: Tape and Reel, 24LD PDIP package. e) TC14433AEOG: 24LD SOIC package. f) TC14433ATEOG: Tape and Reel, 24-LD SOIC package. DS21394D-page 21 ...
Page 22
... TC14433/A NOTES: DS21394D-page 22 © 2008 Microchip Technology Inc. ...
Page 23
... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...
Page 24
... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2008 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...