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SN74ALVCHG162280DBB Datasheet(PDF) 1 Page - Texas Instruments |
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SN74ALVCHG162280DBB Datasheet(HTML) 1 Page - Texas Instruments |
1 / 9 page SN74ALVCHG162280 16-BIT TO 32-BIT REGISTERED BUS EXCHANGER WITH BYTE MASKS AND 3-STATE OUTPUTS SCES093C – FEBRUARY 1997 – REVISED JUNE 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Member of the Texas Instruments Widebus ™ Family D EPIC™ (Enhanced-Performance Implanted CMOS) Sub-Micron Process D A-Port Outputs Have Equivalent 50-Ω Series Resistors and B-Port Outputs Have Equivalent 20- Ω Series Resistors, So No External Resistors Are Required D ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) D Latch-Up Performance Exceeds 250 mA Per JESD 17 D Bus-Hold On Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors D Packaged in Thin Very Small-Outline Package NOTE: For order entry: The DBB package is abbreviated to G. For tape and reel: The DBBR package is abbreviated to GR. description The SN74ALVCHG162280 is a 16-bit to 32-bit registered bus exchanger. This device is intended for use in applications where data must be transferred from a narrow high-speed bus to a wide lower-frequency bus. It is designed specifically for low-voltage (3.3-V) VCC operation. The device provides synchronous data exchange between the two ports, A and B. Data is stored in the internal registers on the low-to-high transition of the clock (CLK) input. For data transfer in the B-to-A direction, the select (SEL) input selects 1B or 2B data for the A outputs. For data transfer in the A-to-B direction, a two-stage pipeline is provided in the 1B path, with a single storage register in the 2B path. Data flow is controlled by the active-low output-enable (OE) and direction-control (DIR) inputs. DIR is registered to synchronize the bus direction changes with the clock. Copyright © 1999, 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. Widebus and EPIC are trademarks of Texas Instruments Incorporated. 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 31 32 33 34 35 36 37 38 39 40 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 50 49 48 47 46 45 44 43 42 41 VCC GND 2B7 1B7 2B6 GND 1B6 2B5 1B5 VCC 2B4 1B4 2B3 1B3 GND 2B2 1B2 2B1 1B1 VCC GND 2D2 1D2 2D1 1D1 VCC C1 C2 A1 GND A2 A3 A4 VCC A5 A6 A7 GND CLK SEL VCC GND 1B8 2B8 1B9 GND 2B9 1B10 2B10 VCC 1B11 2B11 1B12 2B12 GND 1B13 2B13 1B14 2B14 VCC GND 1B15 2B15 1B16 2B16 VCC A16 A15 A14 GND A13 A12 A11 VCC A10 A9 A8 GND OE DIR DBB PACKAGE (TOP VIEW) |
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