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54F243

National Semiconductor
Part Number 54F243
Manufacturer National Semiconductor
Description Quad Bus Transceiver with TRI-STATE Outputs
Published May 9, 2006
Detailed Description 54F 74F243 Quad Bus Transceiver with TRI-STATE Outputs Obsolete November 1994 54F 74F243 Quad Bus Transceiver with TR...
Datasheet PDF File 54F243 PDF File

54F243
54F243

Overview
54F 74F243 Quad Bus Transceiver with TRI-STATE Outputs Obsolete November 1994 54F 74F243 Quad Bus Transceiver with TRI-STATE Outputs General Description The ’F243 is a quad bus transmitter receiver designed for 4-line asynchronous 2-way data communications between data busses Features Y 2-Way asynchronous data bus communication Y Input clamp diodes limit high-speed termination effects Y Guaranteed 4000V minimum ESD protection Commercial 74F243SC (Note 1) Military 54F243DM (Note 2) 54F243FM (Note 2) 54F243LM (Note 2) Package Number J14A M14A W14B E20A Package Description 14-Lead Ceramic Dual-In-Line 14-Lead (0 150 Wide) Molded Small Outline JEDEC 14-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C Note 1 Devices also available in 13 reel Use Suffix e SCX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB Logic Symbol Connection Diagrams IEEE IEC Pin Assignment for DIP SOIC and Flatpak Pin Assignment for LCC TL F 9502–3 TL F 9502 – 1 TL F 9502 – 2 TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL F 9502 RRD-B30M105 Printed in U S A Unit Loading Fan Out 54F 74F Pin Names Description UL HIGH LOW Input IIH IIL Output IOH IOL E1 E2 An Bn Enable Input (Active LOW) 1 0 1 67 20 mA b1 mA Enable Input (Active HIGH) 1 0 1 67 20 mA b1 mA Inputs 3 5 2 67 70 mA b1 6 mA Outputs 600 106 6(80) b12 mA 64 mA(48 mA) Truth Table Inputs E1 E2 LL LH HL HH Inputs Outputs An Input NA Z AeB Bn BeA NA Z Input H e HIGH Voltage Level L e LOW Voltage Level Z e High Impedance N A e Not Allowed Obsolete 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 b65 C to a150 C Ambient Temperature under Bias b55 C to a125 C Junction Temperature under Bias Plastic b55 C to...


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