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Part Number 74F543SPC
Manufacturer ON Semiconductor
Description IC TXRX NON-INVERT 5.5V 24DIP
Datasheet 74F543SPC Datasheet
Package 24-DIP (0.300", 7.62mm)
In Stock 699 piece(s)
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Lead Time Can Ship Immediately
Estimated Delivery Time Jul 14 - Jul 19 (Choose Expedited Shipping)
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Part Number # 74F543SPC (Logic - Buffers, Drivers, Receivers, Transceivers) is manufactured by ON Semiconductor and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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74F543SPC Specifications

ManufacturerON Semiconductor
CategoryIntegrated Circuits (ICs) - Logic - Buffers, Drivers, Receivers, Transceivers
Datasheet 74F543SPCDatasheet
Package24-DIP (0.300", 7.62mm)
Logic TypeTransceiver, Non-Inverting
Number of Elements1
Number of Bits per Element8
Input Type-
Output Type3-State
Current - Output High, Low3mA, 24mA; 3mA, 64mA
Voltage - Supply4.5 V ~ 5.5 V
Operating Temperature0°C ~ 70°C (TA)
Mounting TypeThrough Hole
Package / Case24-DIP (0.300", 7.62mm)
Supplier Device Package24-PDIP

74F543SPC Datasheet

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© 2000 Fairchild Semiconductor Corporation DS009554 April 1988 Revised October 2000 7 4 F 5 4 3 O c ta l R e g is te re d T ra n s c e iv e r 74F543 Octal Registered Transceiver General Description The F543 octal transceiver contains two sets of D-type latches for temporary storage of data flowing in either direction. Separate Latch Enable and Output Enable inputs are provided for each register to permit independent con- trol of inputting and outputting in either direction of data flow. The A outputs are guaranteed to sink 24 mA while the B outputs are rated for 64 mA. Features ■8-bit octal transceiver ■Back-to-back registers for storage ■Separate controls for data flow in each direction ■A outputs sink 24 mA ■B outputs sink 64 mA Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbols IEEE/IEC Connection Diagram Order Number Package Number Package Description 74F543SC M24B 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74F543MSA MSA24 24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 74F543PC N24A 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.600 Wide 74F543SPC N24C 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Page 3 2 7 4 F 5 4 3 Unit Loading/Fan Out Functional Description The F543 contains two sets of eight D-type latches, with separate input and output controls for each set. For data flow from A to B, for example, the A-to-B Enable (CEAB) input must be LOW in order to enter data from A0–A7 or take data from B0–B7, as indicated in the Data I/O Control Table. With CEAB LOW, a LOW signal on the A-to-B Latch Enable (LEAB) input makes the A-to-B latches transparent; a subsequent LOW-to-HIGH transition of the LEAB signal puts the A latches in the storage mode and their outputs no longer change with the A inputs. With CEAB and OEAB both LOW, the 3-STATE B output buffers are active and reflect the data present at the output of the A latches. Con- trol of data flow from B to A is similar, but using the CEBA, LEBA and OEBA inputs. Data I/O Control Table H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial A-to-B data flow shown; B-to-A flow control is the same, except using CEBA, LEBA and OEBA Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Pin Names Description U.L. Input IIH/IIL HIGH/LOW Output IOH/IOL OEAB A-to-B Output Enable Input (Active LOW) 1.0/1.0 20 µ A/− 0.6 mA OEBA B-to-A Output Enable Input (Active LOW) 1.0/1.0 20 µ A/− 0.6 mA CEAB A-to-B Enable Input (Active LOW) 1.0/2.0 20 µ A/− 1.2 mA CEBA B-to-A Enable Input (Active LOW) 1.0/2.0 20 µ A/− 1.2 mA LEAB A-to-B Latch Enable Input (Active LOW) 1.0/1.0 20 µ A/− 0.6 mA LEBA B-to-A Latch Enable Input (Active LOW) 1.0/1.0 20 µ A/− 0.6 mA A0–A7 A-to-B Data Inputs or 3.5/1.083 70 µ A/− 650 µ A B-to-A 3-STATE Outputs 150/40 (33.8) − 3 mA/24 mA (20 mA) B0–B7 B-to-A Data Inputs or 3.5/1.083 70 µ A/− 650 µ A A-to-B 3-STATE Outputs 600/106.6 (80) − 12 mA/64 mA (48 mA) Inputs Latch Output CEAB LEAB OEAB Status Buffers H X X Latched High Z X H X Latched — L L X Transparent — X X H — High Z L X L — Driving

Page 4

3 7 4 F 5 4 3 Absolute Maximum Ratings(Note 1) Recommended Operating Conditions Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied. Note 2: Either voltage limit or current limit is sufficient to protect inputs. DC Electrical Characteristics Storage Temperature − 65° C to + 150° C Ambient Temperature under Bias − 55° C to + 125° C Junction Temperature under Bias − 55° C to + 150° C VCC Pin Potential to Ground Pin − 0.5V to + 7.0V Input Voltage (Note 2) − 0.5V to + 7.0V Input Current (Note 2) − 30 mA to + 5.0 mA Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output − 0.5V to VCC 3-STATE Output − 0.5V to + 5.5V Current Applied to Output in LOW State (Max) twice the rated IOL (mA) Free Air Ambient Temperature 0° C to + 70° C Supply Voltage + 4.5V to + 5.5V Symbol Parameter Min Typ Max Units VCC Conditions VIH Input HIGH Voltage 2.0 V Recognized as a HIGH Signal VIL Input LOW Voltage 0.8 V Recognized as a LOW Signal VCD Input Clamp Diode Voltage − 1.2 V Min IIN = − 18 mA VOH Output HIGH Voltage 10% VCC 2.5 IOH = − 1 mA (An) 10% VCC 2.4 IOH = − 3 mA (An, Bn) 5% VCC 2.7 V Min IOH = − 1 mA (An) 5% VCC 2.7 IOH = − 3 mA (An, Bn) 10% VCC 2.0 IOH = − 15 mA (Bn) VOL Output LOW 10% VCC 0.5 V Min IOL = 24 mA (An) Voltage 10% VCC 0.55 IOL = 64 mA (Bn) IIH Input HIGH Current 5.0 µ A Max VIN = 2.7V IBVI Input HIGH Current 7.0 µ A Max (OEAB, OEBA, LEAB, Breakdown Test LEBA, CEAB, CEBA) IBVIT Input HIGH Current 0.5 mA Max VIN = 5.5V (An, Bn) Breakdown (I/O) ICEX Output HIGH 50 µ A Max VOUT = VCC Leakage Current VID Input Leakage 4.75 V 0.0 IID = 1.9 µ A Test All Other Pins Grounded IOD Output Leakage 3.75 µ A 0.0 VIOD = 150 mV Circuit Current All Other Pins Grounded IIL Input LOW Current − 0.6 mA Max VIN = 0.5V (OEAB, OEBA) − 1.2 VIN = 0.5V (CEAB, CEBA) IIH + IOZH Output Leakage Current 70 µ A Max VOUT = 2.7V (An, Bn) IIL + IOZL Output Leakage Current − 650 µ A Max VOUT = 0.5V (An, Bn) IOS Output Short-Circuit Current − 60 − 150 mA Max VOUT = 0V (An) − 100 − 225 VOUT = 0V (Bn) IZZ Bus Drainage Test 500 µ A 0.0V VOUT = 5.25V (An, Bn) ICCH Power Supply Current 67 100 mA Max VO = HIGH ICCL Power Supply Current 83 125 mA Max VO = LOW ICCZ Power Supply Current 83 125 mA Max VO = HIGH Z

Page 5 4 7 4 F 5 4 3 AC Electrical Characteristics AC Operating Requirements Symbol Parameter TA = + 25° C Units VCC = + 5.0V TA = 0° C to + 70° C CL = 50 pF CL = 50 pF Min Typ Max Min Max tPLH Propagation Delay 3.0 5.5 7.5 3.0 8.5 tPHL Transparent Mode 3.0 5.0 6.5 3.0 7.5 ns An to Bn or Bn to An tPLH Propagation Delay 4.5 8.5 11.0 4.5 12.5 ns tPHL LEBA to An 4.5 8.5 11.0 4.5 12.5 tPLH Propagation Delay 4.5 8.5 11.0 4.5 12.5 ns tPHL LEAB to Bn 4.5 8.5 11.0 4.5 12.5 tPZH Output Enable Time tPZL OEBA or OEAB to An or Bn 3.0 7.0 9.0 3.0 10.0 CEBA or CEAB to An or Bn 4.0 7.5 10.5 4.0 12.0 ns tPHZ Output Disable Time tPLZ OEBA or OEAB to An or Bn 1.0 6.0 8.0 1.0 9.0 CEBA or CEAB to An or Bn 2.5 5.5 10.5 2.5 11.5 Symbol Parameter TA = + 25° C UnitsVCC = + 5.0V TA = 0° C to + 70° C Min Max Min Max tS(H) Setup Time, HIGH or LOW 3.0 3.5 tS(L) An or Bn to LEBA or LEAB 3.0 3.5 ns tH(H) Hold Time, HIGH or LOW 3.0 3.5 tH(L) An or Bn to LEBA or LEAB 3.0 3.5 tW(L) Latch Enable, B to A or 8.0 9.0 ns B to A Pulse Width, LOW

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5 7 4 F 5 4 3 Physical Dimensions inches (millimeters) unless otherwise noted 24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M24B 24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide Package Number MSA24

Page 7 6 7 4 F 5 4 3 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.600 Wide Package Number N24A

74F543SPC Reviews

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De***** Lin

June 30, 2020

These are a great value at this price.


June 27, 2020

I'm so sure that you're beating your competitor on delivery!

Kn***** Sha

June 18, 2020

Great capacitors. very fast post very good communication.


June 9, 2020

Arrived promptly, carefully packaged, as described, many thanks


June 4, 2020

Very easy to find and order what I wanted. Being able to add multiple items in various quantities from an online catalog page with a simple click.


June 2, 2020

There are cheaper ones out there but this one really take the guessing game out.

Bro***** Day

May 31, 2020

I am a novice technician. I really rely on reviews to help guide me, as I do not have anyone to assist me with electronics. I purchased these items and report I am happy with the purchase. I took a chance and it was one of the better choices I made.

Zar***** Day

May 29, 2020

A well designed product that fit my custom PCB's perfectly. Easy to use. Sturdy construction. Highly recommend to all PCB builders.


May 27, 2020

They are great as I need, I give 5 stars.


May 15, 2020

Great price. Worked well for my needs.

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