SN54F541, SN74F541 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SDFS021A – D3126, JANUARY 1989 – REVISED OCTOBER 1993 • • • SN54F541 . . . J PACKAGE SN74F541 . . . DW OR N PACKAGE (TOP VIEW) 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers Data Flow-Through Pinout (All Inputs on Opposite Side From Outputs) Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs OE1 A1 A2 A3 A4 A5 A6 A7 A8 GND description The ′F541 octal buffer/line driver is ideal for driving bus lines or buffering memory address registers. The device features inputs and outputs on opposite sides of the package to facilitate printed-circuit-board layout. The 3-state control gate is a 2-input AND gate with active-low inputs so that if either output enable (OE1 or OE2) input is high, all eight outputs are in the high-impedance state. 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 OE1 VCC OE2 SN54F541 . . . FK PACKAGE (TOP VIEW) The SN54F541 is characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74F251 is characterized for operation from 0°C to 70°C. 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 FUNCTION TABLE INPUTS A OUTPUT Y OE1 OE2 L L L L L L H H H X X Z X H X Z Copyright 1993, 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. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2–1 SN54F541, SN74F541 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SDFS021A – D3126, JANUARY 1989 – REVISED OCTOBER 1993 logic symbol† 1 logic diagram (positive logic) OE1 OE2 A1 A2 A3 A4 A5 A6 A7 A8 EN 19 2 1 OE1 & 19 OE2 18 1 3 17 4 16 5 15 6 14 7 13 8 12 9 11 2 A1 Y1 18 Y1 Y2 Y3 Y4 To Seven Other Channels Y5 Y6 Y7 Y8 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)‡ Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 1.2 V to 7 V Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 mA to 5 mA Voltage range applied to any output in the disabled or power-off state . . . . . . . . . . . . . . . . . . . – 0.5 V to 5.5 V Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC Current into any output in the low state: SN54F541 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA SN74F541 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Operating free-air temperature range: SN54F541 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74F541 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C ‡ Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: The input voltage ratings may be exceeded provided the input current ratings are observed. recommended operating conditions SN54F541 VCC VIH Supply voltage VIL IIK Low-level input voltage High-level input voltage SN74F541 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 2 2 UNIT V V 0.8 0.8 V Input clamp current – 18 – 18 mA IOH IOL High-level output current – 12 – 15 mA Low-level output current 48 64 mA TA Operating free-air temperature 70 °C 2–2 – 55 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 125 0 SN54F541, SN74F541 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SDFS021A – D3126, JANUARY 1989 – REVISED OCTOBER 1993 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VCC = 4.5 V, VCC = 4.5 V VCC = 4.75 V, VOL VCC = 4 4.5 5V IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, II IIH VCC = 5.5 V, VCC = 5.5 V, IIL IOS‡ VCC = 5.5 V, VCC = 5.5 V, ICC SN54F541 TYP† MAX TEST CONDITIONS VCC = 5.5 V MIN II = – 18 mA IOH = – 3 mA SN74F541 TYP† MAX MIN – 1.2 IOH = – 12 mA IOH = – 15 mA 2.4 3.3 2 3.2 IOH = – 3 mA IOL = 48 mA – 1.2 2.4 3.3 2 3.1 UNIT V V 2.7 0.38 IOL = 64 mA VO = 2.7 V 0.55 0.42 VO = 0.5 V VI = 7 V VI = 2.7 V VI = 0.5 V – 100 V 50 50 µA – 50 – 50 µA 0.1 0.1 mA 20 20 µA – 0.6 mA – 225 mA – 0.6 VO = 0 Outputs high 0.55 – 225 – 100 28 35 28 35 Outputs low 62 75 62 75 Outputs disabled 40 55 40 55 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. switching characteristics (see Note 2) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, CL = 50 pF, RL = 500 Ω, TA = 25°C VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 500 Ω, TA = MIN to MAX§ ′F541 tPLH tPHL Any A Y tPZH tPZL OE Y tPHZ tPLZ OE Y UNIT SN54F541 SN74F541 MIN TYP MAX MIN MAX MIN MAX 1.5 3.3 5.5 1 6.5 1.5 6 1.5 2.7 5.5 1 6.5 1.5 6 3 5.8 8 1.7 10 2.5 9.5 3.5 6.1 8.5 2.2 10 3 9.5 1.5 3.4 6 1 7 1.5 6.5 1.5 2.9 5.5 1 7.5 1.5 6 ns ns ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 2: Load circuits and waveforms are shown in Section 1. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2–3 SN54F541, SN74F541 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SDFS021A – D3126, JANUARY 1989 – REVISED OCTOBER 1993 2–4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. 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