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74FST3245 データシート(PDF) 1 Page - ON Semiconductor |
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74FST3245 データシート(HTML) 1 Page - ON Semiconductor |
1 / 8 page © Semiconductor Components Industries, LLC, 2001 August, 2001 – Rev. 0 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. • 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 QS3245, FST3245, CBT3245 • All Popular Packages: QSOP–20, TSSOP–20, SOIC–20 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 L H Input OE Function Connect Disconnect TRUTH TABLE 2 19 9 18 11 OE Figure 2. Logic Diagram A0 A7 B0 B7 Description PIN NAMES OE1, OE2 1A, 2A http://onsemi.com Device Package Shipping ORDERING INFORMATION 74FST3245DW SO–20 38 Units/Rail 74FST3245DWR2 SO–20 74FST3245DT TSSOP–20 1000 Units/Reel 75 Units/Rail 74FST3245DTR2 TSSOP–20 2500 Units/Reel 74FST3245QS QSOP–20 55 Units/Rail 74FST3245QSR QSOP–20 2500 Units/Reel TSSOP–20 DT SUFFIX CASE 948E SO–20 DW SUFFIX CASE 751D 20 MARKING DIAGRAMS Pin Bus Switch Enables Bus A 1B, 2B Bus B 20 1 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 |
同様の部品番号 - 74FST3245 |
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同様の説明 - 74FST3245 |
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