SN64BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS479 – MARCH 1993 – REVISED MAY 1994 • • • • • DW OR N PACKAGE (TOP VIEW) BiCMOS Design Significantly Reduces ICCZ ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0) High-Impedance State During Power Up and Power Down Open-Collector Outputs Drive Bus Lines or Buffer-Memory Address Registers Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic and Ceramic 300-mil DIPs (N) 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 description This octal buffer and line driver is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The device provides complementary output-enable (OE and OE) inputs and noninverting outputs. The SN64BCT757 is characterized for operation from – 40°C to 85°C and 0°C to 70°C. FUNCTION TABLES INPUTS 1OE 1A OUTPUT 1Y H X H L L L L H H INPUTS 2OE 2A OUTPUT 2Y L X H H L L H H H Copyright 1994, 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 3–1 SN64BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS479 – MARCH 1993 – REVISED MAY 1994 logic symbol† 1OE 1A1 1A2 1A3 1A4 1 logic diagram (positive logic) 1OE EN 2 18 4 16 6 14 12 8 1Y1 1A1 2A1 2A2 2A3 2A4 19 2 18 4 16 1Y2 1Y3 1A2 1Y1 1Y2 1Y4 1A3 2OE 1 6 14 1Y3 EN 11 9 13 7 15 5 17 3 1A4 8 12 1Y4 2Y1 2Y2 2Y3 2OE 19 2Y4 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 2A1 2A2 2A3 2A4 11 9 13 7 15 5 17 3 2Y1 2Y2 2Y3 2Y4 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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Voltage range applied to any output in the disabled or power-off state, VO . . . . . . . . . . . . . . . . – 0.5 V to 5.5 V Voltage range applied to any output in the high state, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to VCC Input clamp current, IIK (VI < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 mA Current into any output in the low state, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 mA Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 40°C to 85°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 negative-voltage ratings may be exceeded if the input clamp-current ratings are observed. 3–2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN64BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS479 – MARCH 1993 – REVISED MAY 1994 recommended operating conditions (see Note 2) MIN NOM MAX 4.5 5 5.5 UNIT VCC VIH Supply voltage VIL VOH Low-level input voltage High-level output voltage 5.5 V IIK IOL Input clamp current –18 mA 64 mA ∆t/∆VCC TA Power-up ramp rate High-level input voltage 2 V 0.8 Low-level output current V µs / V 2 Operating free-air temperature V – 40 85 °C NOTE 2: Unused or floating inputs must be held high or low. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VIK IOH VCC = 4.5 V, VCC = 4.5 V, II = –18 mA VOH = 5.5 V VOL IOZ VCC = 4.5 V, VCC = 0 to 2.3 V (power up), IOL = 64 mA VO = 2.7 V, IOZ II VCC = 1.8 V to 0 (power down), VCC = 5.5 V, VO = 2.7 V, VI = 7 V IIH IIL VCC = 5.5 V, VCC = 5.5 V, VI = 2.7 V VI = 0.5 V MIN TYP† 0.42 ICC VCC = 5.5 V, Outputs open Ci VCC = 5 V, VCC = 5 V, VI = 2.5 V or 0.5 V VO = 2.5 V or 0.5 V MAX V 0.1 mA 0.55 V OE = 0.8 V or OE = 2 V 50 µA OE = 0.8 V or OE = 2 V 50 µA 0.1 mA 20 µA –1 mA Outputs high 34 Outputs low 77 OE and OE inactive Co † All typical values are at VCC = 5 V, TA = 25°C. UNIT –1.2 mA 10 6 pF 4 pF switching characteristics over recommended range of supply voltage, CL = 50 pF (unless otherwise noted) (see Note 3) FROM (INPUT) TO (OUTPUT) tPLH tPHL A Y tPLH tPHL 2OE Y tPLH tPHL 1OE Y PARAMETER VCC = 5 V, TA = 25°C TA = – 40°C to 85°C TA = 0°C to 70°C UNIT MIN TYP MAX MIN MAX MIN MAX 6.9 8.3 9.6 6.5 11.2 6.6 10.1 2.4 4.2 6 1.9 7 2 6.6 11 14.8 17.9 10.4 21.3 10.8 19.7 2.9 4.6 6.2 2.6 7.5 2.6 6.9 11.4 13.9 16.1 8.9 19.9 10 18 4.4 6.1 7.8 4 9.2 4 8.5 ns ns ns NOTE 3: Load circuits and voltage waveforms are shown in Section 1. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3–3 SN64BCT757 OCTAL BUFFER/DRIVER WITH OPEN-COLLECTOR OUTPUTS SCBS479 – MARCH 1993 – REVISED MAY 1994 3–4 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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