74F545

74F545 FAIRCHILD | Alldatasheet

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■ Higher drive than 8304 ■ 8-bit bidirectional data flow reduces system package count ■ 3-STATE inputs/outputs for interfacing with bus-oriented systems ■ 24 mA and 64 mA bus drive capability on A and B Ports, respectively ■ Transmit/Receive and Output Enable simplify control logic ■ Guaranteed 4000V minimum ESD protection 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 74F545SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74F545PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

www.fairchildsemi.com 2 74F545 Unit Loading/Fan Out Truth Table H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance 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 OE Output Enable Input (Active LOW) 1.0/2.0 20 µA/−1.2 mA T/R Transmit/Receive Input 1.0/2.0 20 µA/−1.2 mA A0–A7 Side A 3-STATE Inputs or 3.5/1.083 70 µA/−650 µA 3-STATE Outputs 150/40 (33.3) −3 mA/24 mA (20 mA) B0–B7 Side B 3-STATE Inputs or 3.5/1.083 70 µA/−650 µA 3-STATE Outputs 600/106.6 (80) −12 mA/64 mA (48 mA) Inputs Outputs OE T/R L L Bus B Data to Bus A L H Bus A Data to Bus B HX H i g h Z

3 www.fairchildsemi.com 74F545 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. Storage Temperature −65°C to +150°C Ambient Temperature under Bias −55°C to +125°C Junction Temperature under Bias −55°C to +150C 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 I OL (mA) ESD Last Passing Voltage (Min) 4000V 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 I IN = −18 mA (OE, T/R) VOH Output HIGH 10% V CC 2.5 VM i n IOH = −1 mA (An) Voltage 10% V CC 2.4 I OH = −3 mA (An) 10% V CC 2.0 I OH = −15 mA (Bn) 5% VCC 2.7 I OH = −1 mA (An) 5% VCC 2.7 I OH = −3 mA (An) VOL Output LOW 10% V CC 0.5 VM i n IOL = 24 mA (An) Voltage 10% V CC 0.55 I OL = 64 mA (Bn) IIH Input HIGH 5.0 µAM a x V IN = 2.7V (OE, T/R) Current IBVI Input HIGH Current 7.0 µAM a x V IN = 7.0V (OE, T/R) Breakdown Test IBVIT Input HIGH Current 0.5 mA Max V IN = 5.5V (An, Bn) Breakdown (I/O) ICEX Output HIGH 50 µAM a x V OUT = VCCLeakage Current VID Input Leakage 4.75 V 0.0 IID = 1.9 µA Test All Other Pins Grounded IOD Output Leakage 3.75 µA0 . 0 VIOD = 150 mV Circuit Current All Other Pins Grounded IIL Input LOW Current −1.2 mA Max VIN = 0.5V (OE, T/R) IIH + IOZH Output Leakage Current 70 µAM a x V OUT = 2.7V (An, Bn) IIL + IOZL Output Leakage Current −650 µAM a x V OUT = 0.5V (An, Bn) IOS Output Short-Circuit Current −60 −150 mA Max VOUT = 0V (An) −100 −225 V OUT = 0V (Bn) IZZ Bus Drainage Test 500 µA0 . 0 V V OUT = 5.25V ICCH Power Supply Current 70 90 mA Max V O = HIGH ICCL Power Supply Current 95 120 mA Max V O = LOW ICCZ Power Supply Current 85 110 mA Max V O = HIGH Z

www.fairchildsemi.com 4 74F545 Symbol Parameter TA = +25°CT A = −55°C to +125°CT A = 0°C to +70°C Units VCC = +5.0V V CC = +5.0V V CC = +5.0V C L = 50 pF C L = 50 pF C L = 50 pF Min Typ Max Min Max Min Max ns ns

5 www.fairchildsemi.com 74F545 Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide Package Number M20B

www.fairchildsemi.com 6 74F545 Octal Bidirectional Transceiver with 3-STATE Outputs Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Package Number N20A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea- sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea- sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com