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74FST3126DR2 Scheda tecnica(PDF) 1 Page - ON Semiconductor |
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74FST3126DR2 Scheda tecnica(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2001 August, 2001 – Rev. 0 1 Publication Order Number: 74FST3126/D 74FST3126 4-Bit Bus Switch The ON Semiconductor 74FST3126 is a quad, 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 four independent 1–bit switches with separate Output/Enable (OE) pins. Port A is connected to Port B when OE is high. If OE is low, the switch is high Z. • R ON 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 QS3126, FST3126, CBT3126 • All Popular Packages: QSOP–16, TSSOP–14, SOIC–14 OE1 OE2 GND 2B 2A 1B 1A VCC 4B 3B 3A OE3 4A OE4 NC 1B 2B 2A OE2 1A OE1 VCC 4B 3B 3A OE3 4A OE4 GND NC 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1 2 3 4 5 6 7 16 15 14 13 12 11 10 89 Figure 1. Pin Assignment for SOIC and TSSOP Figure 2. Pin Assignment for QSOP Description PIN NAMES OE1, OE2, OE3, OE4 1A, 2A, 3A, 4A http://onsemi.com Device Package Shipping ORDERING INFORMATION 74FST3126D SO–14 55 Units/Rail 74FST3126DR2 SO–14 74FST3126DT TSSOP–14 2500 Units/Reel 96 Units/Rail A = Assembly Location L, WL = Wafer Lot Y = Year W, WW = Work Week 74FST3126DTR2 TSSOP–14 2500 Units/Reel 74FST3126QS QSOP–16 98 Units/Rail 74FST3126QSR QSOP–16 2500 Units/Reel TSSOP–14 DT SUFFIX CASE 948G 14 1 QSOP–16 QS SUFFIX CASE 492 SO–14 D SUFFIX CASE 751A 14 1 1 14 FST 3126 ALYW FST3126 AWLYWW 14 1 MARKING DIAGRAMS S3126 ALYW 16 1 Pin Bus Switch Enables Bus A 1B, 2B, 3B, 4B Bus B NC Not Connected 16 1 |
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