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SN74AHCT573-Q1 датащи(PDF) 1 Page - Texas Instruments |
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SN74AHCT573-Q1 датащи(HTML) 1 Page - Texas Instruments |
1 / 8 page SN74AHCT573Q1 OCTAL TRANSPARENT DTYPE LATCH WITH 3STATE OUTPUTS SCLS541A − SEPTEMBER 2003 − REVISED APRIL 2008 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Qualified for Automotive Applications D ESD Protection Exceeds 1500 V Per MIL-STD-883, Method 3015; Exceeds 150 V Using Machine Model (C = 200 pF, R = 0) D Inputs Are TTL-Voltage Compatible D Latch-Up Performance Exceeds 250 mA Per JESD 17 description/ordering information The SN74AHCT573 is an octal transparent D-type latch. When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs are latched at the logic levels of 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) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. To ensure the high-impedance state during power up or power down, 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. OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. ORDERING INFORMATION{ TA PACKAGE‡ ORDERABLE PART NUMBER TOP-SIDE MARKING −40 °C to 125°C SOIC − DW Tape and reel SN74AHCT573QDWRQ1 AHCT573QQ1 † For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://www.ti.com. ‡ Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging. FUNCTION TABLE (each latch) INPUTS OUTPUT OE LE D OUTPUT Q L H H H L HL L L LX Q0 H X X Z Copyright 2008, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. DW PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OE 1D 2D 3D 4D 5D 6D 7D 8D GND VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q LE |
Аналогичный номер детали - SN74AHCT573-Q1 |
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Аналогичное описание - SN74AHCT573-Q1 |
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