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SN74ACT1284PWE4 データシート(PDF) 1 Page - Texas Instruments |
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SN74ACT1284PWE4 データシート(HTML) 1 Page - Texas Instruments |
1 / 12 page SN54ACT1284, SN74ACT1284 7BIT BUS INTERFACES WITH 3STATE OUTPUTS SCAS459D − NOVEMBER 1994 − REVISED OCTOBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 4.5-V to 5.5-V VCC Operation D Inputs Accept Voltages to 5.5 V D Max tpd of 20 ns at 5 V D 3-State Outputs Directly Drive Bus Lines D Flow-Through Architecture Optimizes PCB Layout D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) D Designed for the IEEE 1284-I (Level-1 Type) and IEEE 1284-II (Level-2 Type) Electrical Specifications description/ordering information The ’ACT1284 devices are designed for asynchronous two-way communication between data buses. The control function minimizes external timing requirements. The devices allow data transmission in either the A-to-B or the B-to-A direction for bits 1, 2, 3, and 4, depending on the logic level at the direction-control (DIR) input. Bits 5, 6, and 7, however, always transmit in the A-to-B direction. The output drive for each mode is determined by the high-drive (HD) control pin. When HD is high, the high drive is delivered by the totem-pole configuration, and when HD is low, the outputs are open drain. This meets the drive requirements as specified in the IEEE 1284-I (level-1 type) and the IEEE 1284-II (level-2 type) parallel peripheral-interface specification. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING SOIC − DW Tube SN74ACT1284DW ACT1284 SOIC − DW Tape and reel SN74ACT1284DWR ACT1284 0 °C to 70°C SOP − NS Tape and reel SN74ACT1284NSR ACT1284 0 °C to 70°C SSOP − DB Tape and reel SN74ACT1284DBR AU284 TSSOP − PW Tube SN74ACT1284PW AU284 TSSOP − PW Tape and reel SN74ACT1284PWR AU284 CDIP − J Tube SNJ54ACT1284J SNJ54ACT1284J −55 °C to 125°C CFP − W Tube SNJ54ACT1284W SNJ54ACT1284W −55 C to 125 C LCCC − FK Tube SNJ54ACT1284FK SNJ54ACT1284FK † 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 UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 A1 A2 A3 A4 GND GND A5 A6 A7 DIR B1 B2 B3 B4 VCC VCC B5 B6 B7 HD SN54ACT1284 ...J OR W PACKAGE SN74ACT1284 . . . DB, DW, NS, OR PW PACKAGE (TOP VIEW) 32 1 20 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 B3 B4 VCC VCC B5 A4 GND GND A5 A6 SN54ACT1284 . . . FK PACKAGE (TOP VIEW) |
同様の部品番号 - SN74ACT1284PWE4 |
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同様の説明 - SN74ACT1284PWE4 |
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