SN75124 TRIPLE LINE RECEIVER SLLS058B – SEPTEMBER 1973 – REVISED MAY 1995 D D D D D D D D D D OR N PACKAGE (TOP VIEW) Meets or Exceeds the Requirements of IBM System 360 Input/Output Interface Specification Operates From Single 5-V Supply TTL Compatible Built-In Input Threshold Hysteresis High Speed . . . Typical Propagation Delay Time = 20 ns Independent Channel Strobes Input Gating Increases Application Flexibility Designed for Use With Dual Line Driver SN75123 Designed to Be Interchangeable With Signetics N8T24 1A 1B 2R 2S 2A 2B 2Y GND 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC 1S 1R 1Y 3A 3S 3R 3Y description The SN75124 triple line receiver is specifically designed to meet the input/output interface specifications for IBM System 360. It is also compatible with standard TTL logic and supply voltage levels. The SN75124 has receiver inputs with built-in hysteresis to provide increased noise margin for single-ended systems. An open line affects the receiver input as does a low-level input voltage, and the receiver input can withstand a level of – 0.15 V with power on or off. The other inputs are in TTL configuration. The S input must be high to enable the receiver input. Two of the line receivers have A and B inputs that, if both are high, hold the output low. The third receiver has only an A input that, if high, holds the output low. See the SN751730 for new IBM 360/370 interface designs. The SN75124 is characterized for operation from 0°C to 70°C. FUNCTION TABLE INPUTS S OUTPUT Y X X L L H L H X H A B† R H H X X L X L X X L H X L H X H X L X L H † B input and last two lines of the function table are applicable to receivers 1 and 2 only. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. IBM is a trademark of International Business Machines Corp. Copyright 1995, 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 1 SN75124 TRIPLE LINE RECEIVER SLLS058B – SEPTEMBER 1973 – REVISED MAY 1995 logic symbol† 1R 1S 1A 1B 2R 2S 2A 2B 3R 3S 3A logic diagram (positive logic) 14 & ≥1 1R 15 13 1 1S 1Y 1A & 2 14 15 13 1 1Y 2 1B 3 2R 4 7 5 2S 2Y 3 4 7 5 2Y 2A 6 2B & 10 ≥1 9 11 3R 3Y 3S 6 10 11 9 12 3A † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 3Y 12 schematic (each receiver) VCC To Other Receivers R 16 800 Ω 4 kΩ V 58 Ω 14, 3, 10 13, 7, 9 V S GND To Other Receivers 15, 4, 11 V 8 1, 5, 12 A 2, 6 B‡ V . . . VCC bus ‡ B input is provided on receivers 1 and 2 only Resistor values shown are nominal. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 4 kΩ Y SN75124 TRIPLE LINE RECEIVER SLLS058B – SEPTEMBER 1973 – REVISED MAY 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI: R input with VCC applied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V R input with VCC not applied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V A, B, or S input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Output voltage, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 100 mA Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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: Voltage values are with respect to network ground terminal DISSIPATION RATING TABLE PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING D 950 mW 7.6 mW/°C 608 mW N 1150 mW 9.2 mW/°C 736 mW recommended operating conditions Supply voltage, VCC High level input voltage, High-level voltage VIH Low level input voltage, Low-level voltage VIL A, B, or S MIN NOM MAX UNIT 4.75 5 5.25 V 2 R V 1.7 A, B, or S 0.8 R 0.7 High-level output current, IOH Low-level output current, IOL Operating free-air temperature, TA 0 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 V – 800 µA 16 mA 70 °C 3 SN75124 TRIPLE LINE RECEIVER SLLS058B – SEPTEMBER 1973 – REVISED MAY 1995 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) MIN TYP Vhys Hysteresis voltage (VIT + – VIT –) PARAMETER R VCC = 5 V, TA = 25°C 0.2 0.5 VIK VI(BR) Input clamp voltage A, B, or S Input breakdown voltage A, B, or S VCC = 5 V, VCC = 5 V, II – 12 mA II = 10 mA 5.5 V VOH High level output voltage High-level VIH = VIHmin,, IOH = – 800 µA, VIL = VILmax,, See Note 2 26 2.6 V VOL Low level output voltage Low-level VIH = VIHmin,, IOL = 16 mA, VIL = VILmax,, See Note 2 II Input current at maximum input voltage VI = 7 V VI = 6 V, VCC = 0 IIH High level input current High-level IIL IOS Low-level input current ICC TEST CONDITIONS R A, B, or S UNIT V – 1.5 V 04 0.4 V 5 R VI = 4.5 V VI = 3.11 V A, B, or S VI = 0.4 V, mA 5 40 µA 170 VIR = 0.8 V Short-circuit output current† – 0.1 – 1.6 mA – 50 – 100 mA All inputs = 0.8 V Supply current MAX 72 All inputs = 2 V mA 100 † Not more than one output should be shorted at a time, and duration of the short circuit should not exceed one second. NOTE 2: The output voltage and current limits are characterized for any appropriate combination of high and low inputs specified by the function table for the desired output. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER tPLH tPHL TEST CONDITIONS Propagation delay time, low-to-high-level output from R input Propagation delay time, high-to-low-level output from R input MIN TYP MAX 20 30 20 30 See Figure 1 UNIT ns PARAMETER MEASUREMENT INFORMATION 84.5 Ω Pulse Generator (see Note A) Input 90% 1.5 V 10% tPHL 5 kΩ VOH 1.5 V 1.5 V VOL See Note B TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. The pulse generator has the following characteristics: ZO ≈ 50 Ω, PRR ≤ 5 MHz, duty cycle = 50%. B. CL includes probe and jig capacitance. Figure 1. Test Circuit and Voltage Waveforms POST OFFICE BOX 655303 0 tPLH Output Output 4 2.6 V 90% 1.5 V 10% 1N3064 CL = 30 pF ≤ 5 ns ≤ 5 ns 2.6 V VCC • DALLAS, TEXAS 75265 SN75124 TRIPLE LINE RECEIVER SLLS058B – SEPTEMBER 1973 – REVISED MAY 1995 TYPICAL CHARACTERISTICS RECEIVER OUTPUT VOLTAGE vs INPUT VOLTAGE 4 VO V O – Output Voltage – V 3.5 3 ÏÏÏÏ ÏÏÏÏ ÏÏÏÏ VCC = 5 V No Load TA = 25°C 2.5 ÏÏÏÏ ÏÏÏ ÏÏÏÏ ÏÏÏ 2 VIT – 1.5 1 VIT+ 0.5 0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 VI – Input Voltage – V Figure 2 APPLICATION INFORMATION A B C D 95-Ω Coaxial Cable E F 1/2 SN75123 95 Ω 95 Ω Strobe Y A B 1/3 SN75124 Figure 3. Unbalanced Line Communication Using SN75123 and SN75124 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 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. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. 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