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SN74ALVC162831DBB Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74ALVC162831DBB Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 9 page SN74ALVC162831 1-BIT TO 4-BIT ADDRESS REGISTER/DRIVER WITH 3-STATE OUTPUTS SCAS605A – APRIL 1998 – 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 Output Ports Have Equivalent 26-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 Packaged in Thin Very Small-Outline Package description This 1-bit to 4-bit address register/driver is designed for 1.65-V to 3.6-V VCC operation. The device is ideal for use in applications in which a single address bus is driving four separate memory locations. The SN74ALVC162831 can be used as a buffer or a register, depending on the logic level of the select (SEL) input. When SEL is logic high, the device is in the buffer mode. The outputs follow the inputs and are controlled by the two output-enable (OE) inputs. Each OE controls two groups of nine outputs. When SEL is logic low, the device is in the register mode. The register is an edge-triggered D-type flip-flop. On the positive transition of the clock (CLK) input, data set up at the A inputs is stored in the internal registers. OE controls operate the same as in buffer mode. When OE is logic low, the outputs are in a normal logic state (high or low logic level). When OE is logic high, the outputs are in the high-impedance state. SEL and OE do not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. 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 and Widebus are trademarks of Texas Instruments Incorporated. DBB 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 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 4Y1 3Y1 GND 2Y1 1Y1 VCC NC A1 GND NC A2 GND NC A3 VCC NC A4 GND CLK OE1 OE2 SEL GND A5 A6 VCC A7 NC GND A8 NC GND A9 NC VCC 4Y9 3Y9 GND 2Y9 1Y9 1Y2 2Y2 GND 3Y2 4Y2 VCC 1Y3 2Y3 GND 3Y3 4Y3 GND 1Y4 2Y4 VCC 3Y4 4Y4 GND 1Y5 2Y5 3Y5 4Y5 GND 1Y6 2Y6 VCC 3Y6 4Y6 GND 1Y7 2Y7 GND 3Y7 4Y7 VCC 1Y8 2Y8 GND 3Y8 4Y8 NC – No internal connection |
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