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SN74ABT16373A-EP датащи(PDF) 2 Page - Texas Instruments |
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SN74ABT16373A-EP датащи(HTML) 2 Page - Texas Instruments |
2 / 10 page www.ti.com DESCRIPTION/ORDERING INFORMATION (CONTINUED) SN74ABT16373A-EP 16-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS SCBS810 – MARCH 2006 The SN74ABT16373A-EP can be used as two 8-bit latches or one 16-bit latch. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels set up at the D inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus lines without need for interface or pullup components. OE does not affect internal operations of the latch. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. 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. The SN74ABT16373A-EP is characterized for operation from –55°C to 125°C. FUNCTION TABLE (each 8-bit section) INPUTS OUTPUT Q OE LE D L H H H L H L L L L X Q0 H X X Z 2 Submit Documentation Feedback |
Аналогичный номер детали - SN74ABT16373A-EP |
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Аналогичное описание - SN74ABT16373A-EP |
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