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8550701RA Datasheet(PDF) 1 Page - Texas Instruments |
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8550701RA Datasheet(HTML) 1 Page - Texas Instruments |
1 / 19 page SN54HCT374, SN74HCT374 OCTAL EDGETRIGGERED DTYPE FLIPFLOPS WITH 3STATE OUTPUTS SCLS005D − MARCH 1984 − REVISED AUGUST 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operating Voltage Range of 4.5 V to 5.5 V D High-Current 3-State True Outputs Can Drive Up To 15 LSTTL Loads D Low Power Consumption, 80-µA Max ICC D Typical tpd = 22 ns D ±6-mA Output Drive at 5 V D Low Input Current of 1 µA Max D Inputs Are TTL-Voltage Compatible D Eight D-Type Flip-Flops in a Single Package D Full Parallel Access for Loading description/ordering information These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops of the ’HCT374 devices are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels that were set up at the data (D) inputs. An output-enable (OE) input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube of 20 SN74HCT374N SN74HCT374N SOIC − DW Tube of 25 SN74HCT374DW HCT374 SOIC − DW Reel of 2000 SN74HCT374DWR HCT374 −40 °C to 85°C SOP − NS Reel of 2000 SN74HCT374NSR HCT374 −40 °C to 85°C SSOP − DB Reel of 2000 SN74HCT374DBR HT374 Tube of 70 SN74HCT374PW TSSOP − PW Reel of 2000 SN74HCT374PWR HT374 TSSOP − PW Reel of 250 SN74HCT374PWT HT374 CDIP − J Tube of 20 SNJ54HCT374J SNJ54HCT374J −55 °C to 125°C CFP − W Tube of 85 SNJ54HCT374W SNJ54HCT374W −55 C to 125 C LCCC − FK Tube of 55 SNJ54HCT374FK SNJ54HCT374FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 8D 7D 7Q 6Q 6D 2D 2Q 3Q 3D 4D SN54HCT374 . . . FK PACKAGE (TOP VIEW) SN54HCT374 ...J OR W PACKAGE SN74HCT374 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND VCC 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLK Copyright 2003, Texas Instruments Incorporated 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. 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 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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