SDZS012 − MARCH 1990 • • • • • • DW OR NT PACKAGE 10KH Compatible (T0P VIEW) Open-Collector Outputs Drive Bus Lines or Buffer Memory Address Registers Y1 Y2 Y3 Y4 1 24 2 23 3 22 4 21 VCC GND GND GND Y5 Y6 Y7 Y8 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 ECL and TTL Control Inputs Flow-Through Architecture Optimizes PCB Layout Center-Pin VCC, VEE, and GND Configurations Minimize High-Speed Switching Noise Package Options Include “Small Outline” Packages and Standard Plastic 300-mil DIPs description A1 A2 A3 A4 OE2 (TTL) VEE GND OE1 (ECL) A5 A6 A7 A8 logic symbol† This octal ECL-to-TTL translator is designed to provide efficient translation between a 10KH signal environment and a TTL signal environment. This device is designed specifically to improve the performance and density of ECL-to-TTL CPU/bus oriented functions such as memory address drivers, clock drivers, and busoriented receivers and transmitters while eliminating the need for three-state overlap protection. OE1 OE2 A1 A2 A3 A4 Two output enables, OE1 and OE2, are provided. These enable inputs are ANDed together with OE1 being ECL-compatible and OE2 being TTL-compatible. This offers the choice of controlling the outputs of the device from either a TTL or ECL signal environment. A5 A6 A7 A8 The SN10KHT5538 is characterized for operation from 0°C to 75°C. 17 & ECL/TTL EN 20 24 1 ECL/TTL 23 2 22 3 21 4 16 9 15 10 14 11 13 12 Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. FUNCTION TABLE OUTPUT ENABLE OE1 OE2 DATA INPUT OUTPUT (TTL) A Y H X X H X H X H L L L H L L H L Copyright 1994, Texas Instruments Incorporated ! "#$ ! %#&'" ($) (#"! " !%$""! %$ *$ $! $+! !#$! !(( ,-) (#" %"$!!. ($! $"$!!'- "'#($ $!. '' %$$!) • DALLAS, TEXAS 75265 • HOUSTON, TEXAS 77251−1443 POST OFFICE BOX 655303 POST OFFICE BOX 1443 1 SDZS012 − MARCH 1990 logic diagram (positive logic) A1 24 ECL/TTL 1 ECL/TTL 2 ECL/TTL 3 ECL/TTL 4 Y1 23 A2 Y2 22 A3 Y3 21 A4 Y4 17 ECL/TTL OE1 (ECL) 20 OE2 (TTL) 16 A5 ECL/TTL 9 ECL/TTL 10 ECL/TTL 11 ECL/TTL 12 Y5 15 A6 Y6 14 A7 Y7 13 A8 Y8 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V Supply voltage range, VEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −8 V to 0 V Input voltage range (TTL) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −1.2 V to 7 V Input voltage range (ECL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VEE to 0 V Input current range (TTL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −30 mA to 5 mA Current into any output in the low state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 mA Voltage applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to VCC Operating temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 75°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 TTL input voltage ratings may be exceeded provided the input current ratings are observed. 2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • SDZS012 − MARCH 1990 recommended operating conditions MIN NOM MAX UNIT VCC TTL supply voltage 4.5 5 5.5 V VEE ECL supply voltage −4.94 −5.2 −5.46 V VIH TTL high-level input voltage VIL TTL low-level input voltage VIH ECL high-level input voltage (see Note 2) VIL 2 V 0.8 ECL low-level input voltage (see Note 2) V 0°C −1170 −840 mV 25°C −1130 −810 mV 75°C −1070 −735 mV 0°C −1950 −1480 mV 25°C −1950 −1480 mV 75°C −1950 −1450 mV VOH TTL high-level output voltage 5.5 V IOL TTL low-level output current 48 mA IIK TTL input clamp current −18 mA TA Operating free-air temperature 0 75 °C NOTE 2: The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for logic levels only. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER VIK II OE2 only IIH IIL OE2 only IIH IIL TEST CONDITIONS MIN TYP† MAX VCC = 4.5 V, VCC = 5.5 V, VEE = − 4.94 V, VEE = − 5.46 V, II = − 18 mA VI = 7 V OE2 only VCC = 5.5 V, VCC = 5.5 V, VEE = − 5.46 V, VEE = − 5.46 V, VI = 2.7 V VI = 0.5 V VEE = − 5.46 V, VEE = − 5.46 V, VI = − 840 V VI = − 810 V 0°C 350 A inputs and OE1 VCC = 5.5 V, VCC = 5.5 V, 25°C 350 VCC = 5.5 V, VEE = − 5.46 V, VI = − 735 V 75°C 350 VCC = 5.5 V, VEE = − 5.46 V, VI = − 1950 V OE2 only A inputs and OE1 IOH VOL VCC = 4.5 V, VCC = 4.5 V, VEE = − 4.94 V, VEE = − 5.2 V ± 5%, ICCH ICCL VCC = 5.5 V, VCC = 5.5 V, VEE = − 5.46 V VEE = − 5.46 V IEE Ci VCC = 5.5 V, VCC = 5.5 V, VEE = − 5.46 V VEE = − 5.2 V VOH = 5.5 V IOL = 48 mA Co VCC = 5.5 V, VEE = − 5.2 V † All typical values are at VCC = 5 V, VEE = − 5.2 V, TA = 25°C. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 0°C 0.5 25°C 0.5 75°C 0.5 UNIT −1.2 V 0.1 mA 20 µA −0.5 mA µA µA 250 µA 0.38 0.55 66 95 mA V 79.5 114 mA −23 −33 mA 5 pF 5 pF 3 SDZS012 − MARCH 1990 switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 1) FROM (INPUT) PARAMETER tPLH tPHL tPLH tPHL CL = 50 pF, R1 = 500 Ω, R2 = 500 Ω TO (OUTPUT) Any A Y OE1 (ECL) Y tPLH OE2 (TTL) tPHL † All typical values are at VCC = 5 V, VEE = − 5.2 V, TA = 25°C. Y UNIT MIN TYP† MAX 6.4 9.1 11.7 2.7 4.9 7.2 7 10.1 13.3 3.6 6.2 8.8 6.5 9.1 11.6 2.8 5.3 7.9 ns ns ns PARAMETER MEASUREMENT INFORMATION 7V R1 From Output Under Test Test Point R2 CL (See Note A) LOAD CIRCUIT tf tr 3V Input (See Note B) 1.5 V 0 tPHL tPLH In-Phase Output 1.5 V 1.5 V 80% 50% 80% 50% tPLH VOH 1.5 V VOL −890 mV 20% −1690 mV tPHL VOH In-Phase Output 1.5 V 1.5 V VOL tPLH tPHL Out-of-Phase Output Input (See Note C) 20% 1.5 V tPLH tPHL VOH 1.5 V Out-of-Phase Output VOH 1.5 V 1.5 V VOL VOL VOLTAGE WAVEFORMS TTL-INPUT PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS ECL-INPUT PROPAGATION DELAY TIMES NOTES: A. CL includes probe and jig capacitance. B. For TTL inputs, input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Zo = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns. C. For ECL inputs, input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Zo = 50 Ω, tr ≤ 1.5 ns, tf ≤ 1.5 ns. D. The outputs are measured one at a time with one transition per measurement. 4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • SDZS012 − MARCH 1990 Figure 1. Load Circuit and Voltage Waveforms • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443 • 5 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. 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