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SN74LS126AN 数据表(PDF) 1 Page - Texas Instruments |
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SN74LS126AN 数据表(HTML) 1 Page - Texas Instruments |
1 / 18 page SN54125, SN54126, SN54LS125A, SN54LS126A, SN74125, SN74126, SN74LS125A, SN74LS126A QUADRUPLE BUS BUFFERS WITH 3-STATE OUTPUTS SDLS044A – DECEMBER 1983 – REVISED MARCH 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Quad Bus Buffers D 3-State Outputs D Separate Control for Each Channel description These bus buffers feature three-state outputs that, when enabled, have the low impedance characteristics of a TTL output with additional drive capability at high logic levels to permit driving heavily loaded bus lines without external pullup resistors. When disabled, both output transistors are turned off, presenting a high-impedance state to the bus so the output will act neither as a significant load nor as a driver. The ’125 and ’LS125A devices’ outputs are disabled when G is high. The ’126 and ’LS126A devices’ outputs are disabled when G is low. The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied. Copyright 2002, 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. SN54125, SN54126, SN54LS125A, SN54LS126A . . . J OR W PACKAGE SN74125, SN74126 ...N PACKAGE SN74LS125A, SN74LS126A . . . D, N, OR NS PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1G, 1G* 1A 1Y 2G, 2G* 2A 2Y GND VCC 4G, 4G* 4A 4Y 3G, 3G* 3A 3Y 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 4A NC 4Y NC 3G, 3G* 1Y NC 2G, 2G* NC 2A SN54LS125A, SN54LS126A . . . FK PACKAGE (TOP VIEW) *G on ’125 and ’LS125A devices; G on 126 and ’LS126A devices NC – No internal connection *G on ’125 and ’LS125A devices; G on 126 and ’LS126A devices On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
类似零件编号 - SN74LS126AN |
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类似说明 - SN74LS126AN |
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