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SN74ALVCH16409DL Arkusz danych(PDF) 1 Page - Texas Instruments |
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SN74ALVCH16409DL Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 11 page SN74ALVCH16409 9-BIT, 4-PORT UNIVERSAL BUS EXCHANGER WITH 3-STATE OUTPUTS SCES022E – JULY 1995 – REVISED FEBRUARY 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Member of the Texas Instruments Widebus+ ™ Family D EPIC ™ (Enhanced-Performance Implanted CMOS) Submicron Process D UBE ™ (Universal Bus Exchanger) Allows Synchronous Data Exchange 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 Package Options Include Plastic 300-mil Shrink Small-Outline (DL) and Thin Shrink Small-Outline (DGG) Packages description This 9-bit, 4-port universal bus exchanger is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVCH16409 allows synchronous data exchange between four different buses. Data flow is controlled by the select (SEL0–SEL4) inputs. A data-flow state is stored on the rising edge of the clock (CLK) input if the select-enable (SELEN) input is low. Once a data-flow state has been established, data is stored in the flip-flop on the rising edge of CLK if SELEN is high. The data-flow control logic is designed to allow glitch-free data transmission. When preset (PRE) transitions high, the outputs are disabled immediately, without waiting for a clock pulse. To leave the high-impedance state, both PRE and SELEN must be low and a clock pulse must be applied. To ensure the high-impedance state during power up or power down, PRE 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. Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. The SN74ALVCH16409 is characterized for operation from –40 °C to 85°C. 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. EPIC, UBE, and Widebus+ are trademarks of Texas Instruments Incorporated. DGG OR DL 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 25 26 27 28 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 PRE SEL0 1A1 GND 1A2 1A3 VCC 1A4 1A5 1A6 GND 1A7 1A8 1A9 2A1 2A2 2A3 GND 2A4 2A5 2A6 VCC 2A7 2A8 GND 2A9 SEL1 SEL2 CLK SELEN 1B1 GND 1B2 1B3 VCC 1B4 1B5 1B6 GND 1B7 1B8 1B9 2B1 2B2 2B3 GND 2B4 2B5 2B6 VCC 2B7 2B8 GND 2B9 SEL4 SEL3 |
Podobny numer części - SN74ALVCH16409DL |
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