54FCT245 NSC | Alldatasheet

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n TTL input and output level compatible n A and B output sink capability of 48 mA, source capability of 12 mA n CMOS power consumption n Standard Microcircuit Drawing (SMD) 5962-8762901 Ordering Code: Military Package Package Description Number 54FCT245DMQB J20A 20-Lead Ceramic Dual-In-Line 54FCT245FMQB W20A 20-Lead Cerpak 54FCT245LMQB E20A 20-Lead Ceramic Leadless Chip Carrier, Type C Logic Symbol TRI-STATE® is a registered trademark of National Semiconductor Corporation. DS100950-1 August 1998 54FCT245 Octal Bidirectional Transceiver with TRI-STATE Outputs © 1998 National Semiconductor Corporation DS100950 www.national.com

OE Output Enable Input (Active LOW) T/R Transmit/Receive Input A0–A 7 Side A Inputs or TRI-STATE Outputs B0–B 7 Side B Inputs or TRI-STATE Outputs Truth Table Inputs Output OE T/R L L Bus B Data to Bus A L H Bus A Data to Bus B H X High Z State H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Logic Diagram Pin Assignment for DIP and Flatpak. DS100950-5 Pin Assignment for LCC DS100950-3 DS100950-4 www.national.com 2

Absolute Maximum Ratings(Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Storage Temperature −65˚C to +150˚C Ambient Temperature under Bias −55˚C to +125˚C Junction Temperature under Bias Ceramic −55˚C to +175˚C V CC 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 Any Output in the Disabled or Power-off State −0.5V to 5.5V in the HIGH State −0.5V to V CC Current Applied to Output in LOW State (Max) twice the rated I OL (mA) Recommended Operating Conditions Free Air Ambient Temperature Military −55˚C to +125˚C Supply Voltage Military +4.5V to +5.5V 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. Symbol Parameter FCT245 Units V CC Conditions Min Max VIH Input HIGH Voltage 2.0 V Recognized HIGH Signal VIL Input LOW Voltage 0.8 V Recognized LOW Signal VCD Input Clamp Diode Voltage −1.2 V Min I IN = −18 mA (OE, T/R) VOH Output HIGH Voltage 54FCT 4.3 V Min I OH = −300 uA (An,B n) 54FCT 2.4 V Min I OH = −12 mA (An,B n) VOL Output LOW Voltage 54FCT 0.2 V Min I OL = 300 uA (An,B n) 54FCT 0.55 V Min I OL = 48 mA (An,B n) IIH Input HIGH Current 5 µA Max VIN = 2.7V (OE, T/R) 5V IN = VCC (OE, T/R) IBVIT Input HIGH Current Breakdown Test (I/O) 20 µA Max VIN = 5.5V (An,B n) IIL Input LOW Current −5 µA Max V IN = 0.0V (OE, T/R) IOS Output Short-Circuit Current −60 mA Max V OUT = 0.0V (An,B n) ICCQ Power Supply Current 1.5 mA Max VIN = 0.2V or VIN = 5.3V, VCC = 5.5V ΔICC Power Supply Current 2.0 mA Max V CC = 5.5V, VIN = 3.4V ICCT Total Power Supply Current 6.0 mA VIN = 3.4V or VIN = GND, OE = T/R = GND, VCC = 5.5V, fI = 10Mhz, outputs open, one bit toggling - 50% duty cycle 5.5 mA Max VIN = 5.3V or VIN = 0.2V,OE = T/R = GND, VCC = 5.5V, fI = 10Mhz, outputs open, one bit toggling - 50% duty cycle ICCD Dynamic ICC (Note 3) 0.4 mA/ MHz Max Outputs Open, OE=GND, T/R = GND or VCC One Bit Toggling, 50% Duty Cycle Note 3:Guaranteed but not tested. www.national.com3

Physical Dimensionsinches (millimeters) unless otherwise noted 20-Terminal Ceramic Chip Carrier (L) 20-Lead Ceramic Dual-In-Line Package (D) www.national.com7

Physical Dimensionsinches (millimeters) unless otherwise noted (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or sys- tems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose fail- ure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably 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. National Semiconductor Corporation Americas Tel: 1-800-272-9959 Fax: 1-800-737-7018 Email: support@nsc.com www.national.com National Semiconductor Europe Fax: +49 (0) 1 80-530 85 86 Email: europe.support@nsc.com Deutsch Tel: +49 (0) 1 80-530 85 85 English Tel: +49 (0) 1 80-532 78 32 Français Tel: +49 (0) 1 80-532 93 58 Italiano Tel: +49 (0) 1 80-534 16 80 National Semiconductor Asia Pacific Customer Response Group Tel: 65-2544466 Fax: 65-2504466 Email: sea.support@nsc.com National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 20-Lead Ceramic Flatpak (F) 54FCT245 Octal Bidirectional Transceiver with TRI-STATE Outputs National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.