SN75140PSR

SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 D D D D D D D D D P OR PS† PACKAGE (TOP VIEW) Single 5-V Supply ±100-mV Sensitivity For Application as: – Single-Ended Line Receiver – Gated Oscillator – Level Comparator Adjustable Reference Voltage TTL Outputs TTL-Compatible Strobe Designed for Party-Line (Data-Bus) Applications Common Reference-Voltage Pin Common Strobe 1OUT COMSTRB 1LINE GND 1 8 2 7 3 6 4 5 VCC 2OUT COMREF 2LINE † The PS package is only available left-ended taped and reeled (order SN75140 PSR). description This device consists of a dual single-ended line receiver with TTL-compatible strobes and outputs. The reference voltage (switching threshold) is applied externally and can be adjusted from 1.5 V to 3.5 V, making it possible to optimize noise immunity for a given system design. Due to the low input current (less than 100 µA), the device is suited ideally for party-line (data-bus) systems. The SN75140 has a common reference-voltage pin and a common strobe. The SN75140 is characterized for operation from 0°C to 70°C. FUNCTION TABLE (each receiver) LINE INPUT STROBE OUTPUT ≤ Vref – 100 mV L H ≥ Vref + 100 mV X L X H L H = high level, L = low level, X = irrelevant logic symbol‡ COMSTRB 1LINE COMREF 2LINE 2 ≥1 3 1 1OUT 6 ≥1 5 7 2OUT ‡ This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. 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. Copyright  1998, 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 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 logic diagram (positive logic) COMSTRB 1LINE COMREF 2 1 3 6 7 2LINE 1OUT 2OUT 5 schematic (each receiver) 1500 LINE COMREF 750 1500 4000 4000 130 VCC To Other Line Receiver 1500 470 750 470 850 OUT 500 1000 2900 To Other Line Receiver GND To Other Line Receiver COMSTRB NOTE: Resistor values shown are nominal and in ohms. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Reference input voltage, Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Line input voltage range with respect to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –2 V to 5.5 V Line input voltage with respect to Vref . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5 V Strobe input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table 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: Unless otherwise specified, voltage values are with respect to network ground terminal. DISSIPATION RATING TABLE 2 PACKAGE TA ≤ 25°C POWER RATING DERATING FACTOR ABOVE TA = 25°C TA = 70°C POWER RATING P 1000 mW 8.0 mW/°C 640 mW PS 450 mW 3.6 mW/°C 288 mW POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 recommended operating conditions MIN NOM MAX 4.5 5 5.5 V Supply voltage, VCC Reference input voltage, Vref UNIT 1.5 3.5 V Vref+0.1 0 VCC–1 Vref–0.1 V High-level strobe input voltage, VIH(S) 2 5.5 V Low-level strobe input voltage, VIL(S) 0 0.8 V Operating free-air temperature range, TA 0 70 °C High-level line input voltage, VIH(L) Low-level line input voltage, VIL(L) electrical characteristics over recommended operating VCC = 5 V ±10%, Vref = 1.5 V to 3.5 V (unless otherwise noted) PARAMETER free-air TEST CONDITIONS temperature range, TYP† MAX UNIT –1.5 V MIN VIK Strobe input clamp voltage II(S) = –12 mA VOH High level output voltage High-level VIL(L) = Vreff – 100 mV mV, VIL(S) = 0 0.8 8V V, IOH = –400 400 µA Low level output voltage Low-level VIH(L) = Vreff + 100 mV, mV VIL(S) = 0 0.8 8V V, IOL = 16 mA 04 0.4 VOL VIL(L) = Vreff – 100 mV mV, VIH(S) = 2 V, V IOL = 16 mA 04 0.4 II(S) Strobe input current at maximum input voltage IIH LINE COMREF Strobe COMSTRB L l l Low-level in ut current input LINE Reference IOS ICCH V 1 mA COMSTRB Reference IIL V VI(S) = 5 5.5 5V COMSTRB Hi h l l High-level in ut current input 24 2.4 Strobe Strobe COMREF Short-circuit output current‡ Supply current, output high V 2 40 VI(S) = 2 2.4 4V 80 VI(L) = 3.5 V, Vref = 1.5 V VI(L) = 0 0, Vreff = 3.5 35V 35 100 35 100 70 200 –1.6 VI(S) = 0 0.4 4V –3.2 VI(L) = 0, Vref = 1.5 V VI(L) = 1 1.5 5V V, Vreff = 0 VCC = 5.5 V VI(S) = 0, mA –10 –10 µA –20 –18 VI(L) = Vref – 100 mV VI(L) = Vref + 100 mV ICCL Supply current, output low VI(S) = 0, † All typical values are at VCC = 5 V, TA = 25°C. ‡ Only one output should be shorted at a time. µA –55 mA 18 30 mA 20 35 mA switching characteristics, VCC = 5 V, Vref = 2.5 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 22 35 ns tPLH(L) Propagation delay time, low- to high-level output from LINE CL = 15 pF, RL = 400 kΩ, See Figure 1 tPHL(L) Propagation delay time, high- to low-level output from LINE CL = 15 pF, RL = 400 kΩ, See Figure 1 22 30 ns tPLH(S) Propagation delay time, low- to high-level output from COMSTRB CL = 15 pF, RL = 400 kΩ, See Figure 1 12 22 ns tPHL(S) Propagation delay time, high- to low-level output from COMSTRB CL = 15 pF, RL = 400 kΩ, See Figure 1 8 15 ns POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 PARAMETER MEASUREMENT INFORMATION ≤ 10 ns ≤ 10 ns 90% 2.5 V 2.5 V VCC LINE Output 10% 2.7 V 2.5 V 10% 2.3 V ≤ 10 ns RL = 400 Ω (see Note D) LINE COMSTRB COMSTRB (see Note B) ≤ 10 ns 1.5 V ÌÌÌ tPHL(L) 90% 10% 10% tPLH(S) VOH CL = 15 pF (see Note B) Output 1.5 V 1.5 V 1.5 V 1.5 V VOL VOLTAGE WAVEFORMS TEST CIRCUIT (see Note A) Input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, duty cycle ≤ 50%, ZO = 50 Ω. Unused strobes are to be grounded. CL includes probe and jig capacitance. All diodes are 1N3064. Figure 1. Test Circuit and Voltage Waveforms TYPICAL CHARACTERISTICS OUTPUT VOLTAGE vs LINE INPUT VOLTAGE ÌÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌ VO – Output Voltage – V VO 4 VCC = 5 V Vref = 2.5 V VI(S) = 0 TA = 25°C 3 2 1 0 0 1 2 3 VI(L) – Line Input Voltage – V Figure 2 4 0V tPHL(S) tPLH(L) NOTES: A. B. C. D. 3.5 V 1.5 V POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 4 5 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 APPLICATION INFORMATION 5V Twisted-Pair Line Strobe Data Input OUT Strobe RT Vref 1/2 SN75372 1/2 SN75140 Figure 3. Line Receiver COMSTRB Any Series SN54/SN74 Logic N=1 1.5 V SN75140 N=2 COMSTRB N = 74 1.5 V SN75140 N = 75† † Although most series SN54/SN74 circuits have a >2.4-V output at 400 µA, they typically are capable of maintaining a >2.4-V output level under a load of 7.5 mA. Figure 4. High Fanout From Standard TTL Gate POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 APPLICATION INFORMATION 5V RT (50 Ω to 100 Ω depending on line impedance) VCC = 5 V Data Bus Data In Data In Strobe 1/2 SN75453B VCC = 5 V 5V Data Out Vref = 1.5 V to 3.5 V Data Out Strobe 1/2 SN75140 NOTE A: Using this arrangement, as many as 100 transceivers can be connected to a single data bus. The adjustable reference-voltage feature allows the noise margin to be optimized for a given system. The complete dual bus transceiver (SN75453B driver and SN75140 receiver) can be assembled in approximately the same space required by a single 16-pin package and only one power supply is required (5 V). Data in and data out are TTL compatible. Figure 5. Dual Bus Transceiver VCC = 5 V R1 RF Strobe Signal Input TTL Output RT 1/2 SN75140 Figure 6. Schmitt Trigger 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 APPLICATION INFORMATION OUTPUT VOLTAGE vs INPUT VOLTAGE 4 4 3.5 3.5 3 3 VO VO – Output Voltage – V V VO O – Output Voltage – V OUTPUT VOLTAGE vs INPUT VOLTAGE 2.5 2 1.5 1 0.5 0 ÌÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌ 0.5 1 2 1.5 1 R1 = 6.2 kΩ RT = 3.9 kΩ RF = 16 kΩ TA = 25°C 0 2.5 0.5 0 1.5 2 2.5 3 VI – Input Voltage – V ÌÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌ ÌÌÌÌÌ R1 = 5.9 kΩ RT = 3.9 kΩ RF = 5 kΩ TA = 25°C 0 0.5 1 1.5 2 2.5 3 VI – Input Voltage – V NOTE A: Slowly changing input levels from data lines, optical detectors, and other types of transducers can be converted to standard TTL signals with this Schmitt-trigger circuit. R1, RF, and RT can be adjusted for the desired hysteresis and trigger levels. Figure 7. Examples of Transfer Characteristics COMSTRB VCC OUT Vref RF COMSTRB OUT tw R SN75140 C Figure 8. Gated Oscillator POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 SN75140 DUAL LINE RECEIVER SLLS080C – JANUARY 1977 – REVISED APRIL 1998 APPLICATION INFORMATION OSCILLATOR FREQUENCY vs RC TIME CONSTANT f osc – Oscillator Frequency – MHz 40 20 Vref = 1.5 V 10 7 Vref = 2.5 V 4 RF = 15 kΩ tw = 0.6 f VCC = 5 V TA = 25°C 2 0 0.1 0.2 0.4 0.7 1 2 RC Time Constant – µs Figure 9 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 4 7 10 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) SN75140P ACTIVE PDIP P 8 50 RoHS & Green NIPDAU N / A for Pkg Type 0 to 70 SN75140P SN75140PSR ACTIVE SO PS 8 2000 RoHS & Green NIPDAU Level-1-260C-UNLIM 0 to 70 A140 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of