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SN74ABTH32245PZ Arkusz danych(PDF) 2 Page - Texas Instruments |
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SN74ABTH32245PZ Arkusz danych(HTML) 2 Page - Texas Instruments |
2 / 9 page SN54ABTH32245, SN74ABTH32245 36-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCBS228G – JUNE 1992 – REVISED MAY 1997 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 GND 1B7 1B8 2B1 2B2 2B3 2B4 2B5 GND 2B6 2B7 2B8 2B9 3B1 3B4 GND 3B5 3B6 3B7 3B8 1A6 1A8 1A9 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2A9 3A1 3A2 3A3 3A4 GND 3A5 3A7 3A8 1A7 1B9 3B3 GND 3A6 3A9 4A1 4A2 4A3 GND 3B9 4B1 4B2 4B3 SN54ABTH32245 . . . HS PACKAGE† (TOP VIEW) 2A8 VCC 3B2 VCC GND GND 4B4 † For HS package availability, please contact the factory or your local TI Field Sales Office. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 description The ’ABTH32245 are 36-bit (quad 9-bit) noninverting 3-state transceivers designed for synchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. These devices can be used as four 9-bit transceivers, two18-bit transceivers, or one 36-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) inputs. The output-enable (OE) inputs can be used to disable the device so that the buses are effectively isolated. When VCC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. Active bus-hold circuitry holds unused or floating data inputs at a valid logic level. |
Podobny numer części - SN74ABTH32245PZ |
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Podobny opis - SN74ABTH32245PZ |
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