SN54ALS22B, SN74ALS22B DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS SDAS005A – MARCH 1984 – REVISED MAY 1986 • • Package Options Include Plastic Small Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs Dependable Texas Instruments Quality and Reliability SN54ALS22B . . . J PACKAGE SN74ALS22B . . . D OR N PACKAGE (TOP VIEW) 1A 1B NC 1C 1D 1Y GND description The SN54ALS22B is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74ALS22B is characterized for operation from 0°C to 70°C. INPUTS B C D H H H H L L X X X H X L X X H X X L X H X X X L H 3 12 4 11 5 10 6 9 7 8 VCC 2D 2C NC 2B 2A 2Y SN54ALS22B . . . FK PACKAGE (TOP VIEW) NC NC 1C NC 1D OUTPUT A 13 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 2C NC NC NC 2B 1Y GND NC 2Y 2A FUNCTION TABLE (each gate) 14 2 1B 1A NC VCC 2D These devices contain two independent 4-input NAND gates. They perform the Boolean functions Y = A•B•C•D or Y = A+B+C+D in positive logic. The open-collector outputs require pullup resistors to perform correctly. They may be connected to other open-collector outputs to implement active-low wired-OR or active-high wired-AND functions. Open-collector devices are often used to generate higher VOH levels. 1 Y NC – No internal connection logic diagram (positive logic) 1A logic symbol† 1B 1C 1A 1B 1C 1D 2A 2B 2C 2D 1 2 & 1D 6 1Y 4 2A 5 2B 2C 9 10 1Y 8 2Y 2Y 2D 12 13 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for D, J, and N packages. Copyright 1986, Texas Instruments Incorporated 5BASIC 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 1 SN54ALS22B, SN74ALS22B DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTSWITH OPEN-COLLECTOR OUTPUTS SDAS005A – MARCH 1984 – REVISED MAY 1986 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Off-state output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Operating free-air temperature range: SN54ALS22B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74ALS22B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C recommended operating conditions SN54ALS22B SN74ALS22B MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL IOH Low-level input voltage 0.7 0.8 V High-level output current 5.5 5.5 mA IOL TA Low-level output current 4 8 mA 70 °C High-level input voltage 2 Operating free-air temperature 2 – 55 125 V V 0 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOL IOH II IIH IIL ICCH ICCL TEST CONDITIONS SN54ALS22B TYP† MAX MIN SN74ALS22B TYP† MAX MIN VCC = 4.5 V, VCC = 4.5 V, II = – 18 mA IOL = 4 mA VCC = 4.5 V, VCC = 4.5 V, IOL = 8 mA VOH = 5.5 V 0.1 0.1 mA VCC = 5.5 V, VCC = 5.5 V, VI = 7 V VI = 2.7 V 0.1 0.1 mA 20 20 µA VCC = 5.5 V, VCC = 5.5 V, VI = 0.4 V VI = 0 V – 0.1 – 0.1 mA 0.22 0.4 0.22 0.4 mA VI = 4.5 V 0.8 1.5 0.8 1.5 mA VCC = 5.5 V, † All typical values are at VCC = 5 V, TA = 25°C. – 1.5 0.25 – 1.5 UNIT 0.4 0.25 0.4 0.35 0.5 V V switching characteristics (see Note 1) PARAMETER VCC = 5 V, CL = 50 pF, VCC = 4.5 V to 5.5 V, CL = 50 pF, RL = 2 k Ω, FROM TO RL = 2 kΩ, (INPUT) (OUTPUT) TA = 25°C ’ALS22B MAX MIN MAX Any Y 35 23 65 23 45 ns Any Y 8 4 32 4 18 ns TYP tPLH tPHL NOTE 1: Load circuit and voltage waveforms are shown in Section 1. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 TA = MIN to MAX SN54ALS22B SN74ALS22B MIN UNIT 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. 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