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SN74AVCH16T245GR Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74AVCH16T245GR Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 21 page SN74AVCH16T245 16BIT DUALSUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3STATE OUTPUTS SCES587B − AUGUST 2004 − REVISED APRIL 2005 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage D VCC Isolation Feature − If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State D Overvoltage-Tolerant Inputs/Outputs Allow Mixed-Voltage-Mode Data Communications D Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2-V to 3.6-V Power-Supply Range D Ioff Supports Partial-Power-Down Mode Operation D I/Os Are 4.6-V Tolerant D Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors D Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II D ESD Protection Exceeds JESD 22 − 8000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) − 1000-V Charged-Device Model (C101) description/ordering information This 16-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVCH16T245 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes. The SN74AVCH16T245 is designed for asynchronous communication between data buses. The device transmits data 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) input. The output-enable (OE) input can be used to disable the outputs so the buses are effectively isolated. The SN74AVCH16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING TSSOP − DGG Tape and reel SN74AVCH16T245GR AVCH16T245 −40 °C to 85°C TVSOP − DGV Tape and reel SN74AVCH16T245VR WJ245 −40 °C to 85°C VFBGA − GQL Tape and reel SN74AVCH16T245KR WJ245 VFBGA − ZQL (Pb-free) Tape and reel 74AVCH16T245ZQLR WJ245 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. DGG OR DGV PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 1DIR 1B1 1B2 GND 1B3 1B4 VCCB 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 VCCB 2B5 2B6 GND 2B7 2B8 2DIR 1OE 1A1 1A2 GND 1A3 1A4 VCCA 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 VCCA 2A5 2A6 GND 2A7 2A8 2OE Copyright 2005, Texas Instruments Incorporated 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. 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. |
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Descrição semelhante - SN74AVCH16T245GR |
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