SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993 • • • • SN54F253 . . . J PACKAGE SN74F253 . . . D OR N PACKAGE (TOP VIEW) 3-State Versions of SN54F153 and SN74F153 Permits Multiplexing From N Lines to One Line Performs Parallel-to-Serial Conversion Package Options Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs 1G B 1C3 1C2 1C1 1C0 1Y GND description These data selectors/multiplexers contain inverters and drivers to supply full binary decoding data selection to the AND-OR gates. Separate output-control inputs are provided for each of the two 4-line sections. 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC 2G A 2C3 2C2 2C1 2C0 2Y B 1G NC VCC 2G SN54F253 . . . FK PACKAGE (TOP VIEW) The 3-state outputs can interface with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state), the low impedance of the single enabled output will drive the bus line to a high or low logic level. Each output has its own strobe (G) inputs. The output is disabled when its strobe is high. 4 3 2 1 20 19 18 5 17 6 16 7 15 8 14 9 10 11 12 13 A 2C3 NC 2C2 2C1 1Y GND NC 2Y 2C0 1C3 1C2 NC 1C1 1C0 The SN54F253 is characterized for operation over the full military temperature range of – 55°C to 125°C. The SN74F253 is characterized for operation from 0°C to 70°C. NC – No internal connection FUNCTION TABLE INPUTS SELECT DATA STROBE G OUTPUT Y Z B A C0 C1 C2 C3 X X X X X X H L L L X X X L L L L H X X X L H L H X L X X L L L H X H X X L H H L X X L X L L H H L X X H X L H H X X X L L L H H X X X H L H Select inputs A and B are common to both sections. 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 SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993 logic symbol† A B 1G 1C0 1C1 1C2 1C3 2G 2C0 2C1 2C2 2C3 14 2 0 1 1 6 5 4 3 EN G 0 3 MUX 0 7 1 2 3 15 10 9 11 12 13 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Pin numbers shown are for the D, J, and N packages. 2–2 1Y POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2Y SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993 logic diagram (positive logic) 1G 1C0 1C1 1 6 5 7 1Y Data 1 1C2 1C3 B 4 3 2 Select A 2C0 2C1 14 10 11 Data 2 9 2C2 12 2Y 13 2C3 2G 15 Pin numbers shown are for the D, J, and N packages. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2–3 SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993 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 (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: SN54F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA SN74F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 mA Operating free-air temperature range: SN54F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 55°C to 125°C SN74F253 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 SN54F253 VCC VIH Supply voltage VIL IIK Low-level input voltage IOH IOL High-level output current Low-level output current TA Operating free-air temperature 2–4 High-level input voltage SN74F253 MIN NOM MAX MIN NOM MAX 4.5 5 5.5 4.5 5 5.5 2 Input clamp current – 55 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2 UNIT V V 0.8 0.8 V – 18 – 18 mA –3 –3 mA 20 24 mA 70 °C 125 0 SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK VOH VCC = 4.5 V, VCC = 4 4.5 5V VCC = 4.75 V, MIN II = – 18 mA IOH = – 1 mA VOL VCC = 4 4.5 5V IOZH IOZL VCC = 5.5 V, VCC = 5.5 V, VO = 2.7 V VO = 0.5 V II IIH VCC = 5.5 V, VCC = 5.5 V, IIL IOS‡ VCC = 5.5 V, VCC = 5.5 V, SN74F253 TYP† MAX MIN – 1.2 IOH = – 3 mA IOH = – 1 mA to – 3 mA IOL = 20 mA IOL = 24 mA ICCH ICCL SN54F253 TYP† MAX TEST CONDITIONS – 1.2 2.5 3.4 2.5 3.4 2.4 3.3 2.4 3.3 V V 2.7 0.3 0.5 0.35 0.5 V 50 50 µA – 50 – 50 µA VI = 7 V VI = 2.7 V 0.1 0.1 mA 20 20 µA VI = 0.5 V VO = 0 – 0.6 – 0.6 mA –150 mA – 60 –150 – 60 Condition A 11.5 16 11.5 16 Condition B 16 23 16 23 ICCZ Condition C 16 23 16 † 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. NOTE 2: ICC is measured with the outputs open under the following conditions: A. Inputs A, B, 1C3, and 2C3 at 4.5 V, other inputs grounded B. All inputs grounded C. Inputs 1G and 2G at 4.5 V, other inputs grounded 23 VCC = 5.5 55V V, See Note 2 UNIT mA switching characteristics (see Note 3) PARAMETER FROM (INPUT) TO (OUTPUT) VCC = 5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = 25°C VCC = 4.5 V to 5.5 V, CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω, TA = MIN to MAX§ ′F253 tPLH tPHL A or B Any Y tPLH tPHL Any C Any Y tPZH tPZL G Any Y tPHZ tPLZ G Any Y UNIT SN54F253 SN74F253 MIN TYP MAX MIN MAX MIN MAX 3.7 8.1 11.5 2.7 15 3.7 13 2.2 6.1 9 1.7 11 2.2 10 2.2 5.1 7 1.7 9 2.2 8 1.7 4.1 6 1.7 8 1.7 7 2.2 5.6 8 1.7 10 2.2 9 2.2 5.6 8 1.7 10 2.2 9 1.2 3.3 5 1.2 6.5 1.2 6 1.2 4 6 1.2 8 1.2 7 ns ns ns ns § For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions. NOTE 3: Load circuit and waveforms are shown in Section 1. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2–5 SN54F253, SN74F253 DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SDFS064A – D2032, MARCH 1987 – REVISED OCTOBER 1993 2–6 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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