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74LCX32245G Scheda tecnica(PDF) 2 Page - Fairchild Semiconductor |
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74LCX32245G Scheda tecnica(HTML) 2 Page - Fairchild Semiconductor |
2 / 8 page www.fairchildsemi.com 2 Connection Diagram (Top Thru View) Pin Descriptions FBGA Pin Assignments Truth Tables H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial (HIGH or LOW, inputs and I/O’s may not float) Z = High Impedance Pin Names Description OEn Output Enable Input (Active LOW) T/Rn Transmit/Receive Input A0–A31 Side A Inputs or 3-STATE Outputs B0–B31 Side B Inputs or 3-STATE Outputs 1 234 56 A B1 B0 T/R1 OE1 A0 A1 B B3 B2 GND GND A2 A3 C B5 B4 VCC VCC A4 A5 D B7 B6 GND GND A6 A7 E B9 B8 GND GND A8 A9 F B11 B10 VCC VCC A10 A11 G B13 B12 GND GND A12 A13 H B14 B15 T/R2 OE2 A15 A14 J B17 B16 T/R3 OE3 A16 A17 K B19 B18 GND GND A18 A19 L B21 B20 VCC VCC A20 A21 M B23 B22 GND GND A22 A23 N B25 B24 GND GND A24 A25 P B27 B26 VCC VCC A26 A27 R B29 B28 GND GND A28 A29 T B30 B31 T/R4 OE4 A31 A30 Inputs Outputs OE1 T/R1 L L Bus B0–B7 Data to Bus A0–A7 L H Bus A0–A7 Data to Bus B0–B7 H X HIGH Z State on A0–A7, B0–B7 Inputs Outputs OE2 T/R2 LLBus B8–B15 Data to Bus A8–A15 L H Bus A8–A15 Data to Bus B8–B15 H X HIGH Z State on A8–A15, B8–B15 Inputs Outputs OE3 T/R3 L L Bus B16–B23 Data to Bus A16–A23 L H Bus A16–A23 Data to Bus B16–B23 H X HIGH Z State on A16–A23, B16–B23 Inputs Outputs OE4 T/R4 L L Bus B24–B31 Data to Bus A24–A31 L H Bus A24–A31 Data to Bus B24–B31 H X HIGH Z State on A24–A31, B24–B31 |
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