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SN74HC540APW

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仕様・特性

SN54HC540, SN74HC540 OCTAL BUFFERS AND LINE DRIVERS WITH 3ĆSTATE OUTPUTS SCLS007D − MARCH 1984 − REVISED AUGUST 2003 D D D D D Lines Directly or Up To 15 LSTTL Loads Low Power Consumption, 80-µA Max ICC Typical tpd = 8 ns ±6-mA Output Drive at 5 V Low Input Current of 1 µA Max Data Flow-Through Pinout (All Inputs on Opposite Side From Outputs) SN54HC540 . . . J OR W PACKAGE SN74HC540 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) OE1 A1 A2 A3 A4 A5 A6 A7 A8 GND description/ordering information These octal buffers and line drivers feature the performance of the popular ’HC240 series and offer a pinout with inputs and outputs on opposite sides of the package. This arrangement greatly facilitates printed circuit board layout. 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC OE2 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 A2 A1 SN54HC540 . . . FK PACKAGE (TOP VIEW) The 3-state control gate is a 2-input NOR. If either output-enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state. The ’HC540 devices provide inverted data at the outputs. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 Y1 Y2 Y3 Y4 Y5 A8 GND Y8 Y7 Y6 A3 A4 A5 A6 A7 OE1 VCC OE2 D Wide Operating Voltage Range of 2 V to 6 V D High-Current 3-State Outputs Drive Bus ORDERING INFORMATION PACKAGE† TA PDIP − N ORDERABLE PART NUMBER TOP-SIDE MARKING Tube of 20 SN74HC540N Tube of 25 SN74HC540DW Reel of 2000 SN74HC540DWR SOP − NS Reel of 2000 SN74HC540NSR HC540 SSOP − DB Reel of 2000 SN74HC540DBR HC540 Tube of 70 SN74HC540PW Reel of 2000 SN74HC540PWR Reel of 250 SN74HC540PWT CDIP − J Tube of 20 SNJ54HC540J SNJ54HC540J CFP − W Tube of 85 SNJ54HC540W SNJ54HC540W LCCC − FK Tube of 55 SNJ54HC540FK SOIC − DW −40°C to 85°C TSSOP − PW −55 C 125°C −55°C to 125 C SN74HC540N HC540 HC540 SNJ54HC540FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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. 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. On products compliant to MILĆPRFĆ38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 1

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