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SN74ACT2236-20FN 데이터시트(PDF) 7 Page - Texas Instruments |
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SN74ACT2236-20FN 데이터시트(HTML) 7 Page - Texas Instruments |
7 / 14 page SN74ACT2236 1024 × 9 × 2 ASYNCHRONOUS BIDIRECTIONAL FIRST IN, FIRST OUT MEMORY SCAS149A − APRIL 1990 − REVISED SEPTEMBER 1995 7 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 SELECT-MODE CONTROL TABLE CONTROL OPERATION SAB SBA A BUS B BUS L L Real-time B to A bus Real-time A to B bus L H FIFO B to A bus Real-time A to B bus H L Real-time B to A bus FIFO A to B bus H H FIFO B to A bus FIFO A to B bus OUTPUT-ENABLE CONTROL TABLE CONTROL OPERATION DIR OE A BUS B BUS X H Input Input L L Output Input H L Input Output Figure 1. Bus-Management Functions (Continued) absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC −0.5 V to 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage: Control inputs 7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I/O ports 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage applied to a disabled 3-state output 5.5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg −65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum junction temperature, TJ 150 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. |
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