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74LVTH162244GRE4 датащи(PDF) 2 Page - Texas Instruments |
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74LVTH162244GRE4 датащи(HTML) 2 Page - Texas Instruments |
2 / 7 page SN54LVTH162244, SN74LVTH162244 3.3V ABT 16BIT BUFFERS/DRIVERS WITH 3STATE OUTPUTS SCBS258M − JUNE 1993 − REVISED SEPTEMBER 2003 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description/ordering information (continued) The outputs, which are designed to source or sink up to 12 mA, include equivalent 22- Ω series resistors to reduce overshoot and undershoot. Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. When VCC is between 0 and 1.5 V, the devices are in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 1.5 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. These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down. The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down, which prevents driver conflict. terminal assignments 12 34 5 6 A 1OE NC NC NC NC 2OE B 1Y2 1Y1 GND GND 1A1 1A2 C 1Y4 1Y3 VCC VCC 1A3 1A4 D 2Y2 2Y1 GND GND 2A1 2A2 E 2Y4 2Y3 2A3 2A4 F 3Y1 3Y2 3A2 3A1 G 3Y3 3Y4 GND GND 3A4 3A3 H 4Y1 4Y2 VCC VCC 4A2 4A1 J 4Y3 4Y4 GND GND 4A4 4A3 K 4OE NC NC NC NC 3OE NC − No internal connection FUNCTION TABLE (each 4-bit buffer) INPUTS OUTPUT OE A OUTPUT Y L H H L LL H X Z GQL OR ZQL PACKAGE (TOP VIEW) J H G F E D C B A 2 13 4 6 5 K |
Аналогичный номер детали - 74LVTH162244GRE4 |
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Аналогичное описание - 74LVTH162244GRE4 |
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