Datenblatt-Suchmaschine für elektronische Bauteile |
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74FST3245QSR Datenblatt(PDF) 1 Page - ON Semiconductor |
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74FST3245QSR Datenblatt(HTML) 1 Page - ON Semiconductor |
1 / 6 page © Semiconductor Components Industries, LLC, 2006 June, 2006 − Rev. 2 1 Publication Order Number: 74FST3245/D 74FST3245 8−Bit Bus Switch The ON Semiconductor 74FST3245 is an 8−bit, high performance switch. The device is CMOS TTL compatible when operating between 4 and 5.5 Volts. The device exhibits extremely low RON and adds nearly zero propagation delay. The device adds no noise or ground bounce to the system. The device consists of an 8−bit switch. Port A is connected to Port B when OE is low. If OE is high, the switch is high Z. Features • RON t 4 W Typical • Less Than 0.25 ns−Max Delay Through Switch • Nearly Zero Standby Current • No Circuit Bounce • Control Inputs are TTL/CMOS Compatible • Pin−For−Pin Compatible with QS3245, FST3245, CBT3245 • All Popular Packages: QSOP−20, TSSOP−20, SOIC−20 • All Devices in Package TSSOP are Inherently Pb−Free* NC A2 A5 A4 A3 A1 A0 VCC B1 B4 B3 B2 B0 OE 1 2 3 4 5 6 7 20 19 18 17 16 15 14 Figure 1. 20−Lead Pinout A6 8 A7 9 GND 10 B5 13 B6 12 B7 11 2 19 9 18 11 OE Figure 2. Logic Diagram A0 A7 B0 B7 L H Input OE Function Connect Disconnect TRUTH TABLE *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. Description PIN NAMES OE1, OE2 1A, 2A TSSOP−20 DT SUFFIX CASE 948E SOIC−20 DW SUFFIX CASE 751D MARKING DIAGRAMS Pin Bus Switch Enables Bus A 1B, 2B Bus B 20 1 FST3245 AWLYYWW 1 20 20 1 FST 3245 ALYW A = Assembly Location L, WL = Wafer Lot Y = Year W, WW = Work Week QSOP−20 QS SUFFIX CASE 492A 1 20 FST3245 AWLYWW 20 1 See detailed ordering and shipping information in the package dimensions section on page 3 of this data sheet. ORDERING INFORMATION 20 1 http://onsemi.com |
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