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SN74HC590ADR Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74HC590ADR Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 22 page SN54HC590A, SN74HC590A 8BIT BINARY COUNTERS WITH 3STATE OUTPUT REGISTERS SCLS039F − DECEMBER 1982 − REVISED SEPTEMBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 2-V to 6-V VCC Operation D High-Current 3-State Parallel Register Outputs Can Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 14 ns D ±6-mA Output Drive at 5 V D Low Input Current of 1 µA Max D 8-Bit Counter With Register D Counter Has Direct Clear SN54HC590A ...J OR W PACKAGE SN74HC590A . . . D, DW, OR N PACKAGE (TOP VIEW) SN54HC590A . . . FK PACKAGE (TOP VIEW) NC − No internal connection 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 QB QC QD QE QF QG QH GND VCC QA OE RCLK CCKEN CCLK CCLR RCO 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 OE RCLK NC CCKEN CCLK QD QE NC QF QG description/ordering information The ’HC590A devices contain an 8-bit binary counter that feeds an 8-bit storage register. The storage register has parallel outputs. Separate clocks are provided for both the binary counter and storage register. The binary counter features direct clear (CCLR) and count-enable (CCKEN) inputs. A ripple-carry output (RCO) is provided for cascading. Expansion is accomplished easily for two stages by connecting RCO of the first stage to CCKEN of the second stage. Cascading for larger count chains can be accomplished by connecting RCO of each stage to the counter clock (CCLK) input of the following stage. CCLK and the register clock (RCLK) inputs are positive-edge triggered. If both clocks are connected together, the counter state always is one count ahead of the register. Internal circuitry prevents clocking from the clock enable. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube of 25 SN74HC590AN SN74HC590AN Tube of 40 SN74HC590AD −40 °C to 85°C SOIC − D Reel of 2500 SN74HC590ADR HC590A −40 °C to 85°C SOIC − D Reel of 250 SN74HC590ADT HC590A SOIC − DW Tube of 40 SN74HC590ADW HC590A SOIC − DW Reel of 2000 SN74HC590ADWR HC590A CDIP − J Tube of 25 SNJ54HC590AJ SNJ54HC590AJ −55 °C to 125°C CFP − W Tube of 150 SNJ54HC590AW SNJ54HC590AW −55 C to 125 C LCCC - FK Tube of 55 SNJ54HC590AFK SNJ54HC590AFK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2003, 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. On products compliant to MILPRF38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
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