GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 D D D D D D Single Chip With Easy Interface Between UART and Serial-Port Connector of IBM PC/AT and Compatibles Meets or Exceeds the Requirements of ANSI Standard TIA/EIA-232-F and ITU Recommendation V.28 Designed to Support Data Rates up to 120 kbit/s Pinout Compatible With SN75C185 and SN75185 ESD Protection to 2 kV on Bus Terminals Package Options Include Plastic Small-Outline (DW), Shrink Small-Outline (DB) Packages, and DIPs (N) DB, DW, OR N PACKAGE (TOP VIEW) VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VCC RY1 RY2 RY3 DA1 DA2 RY4 DA3 RY5 GND description The GD75232 combines three drivers and five receivers from TI trade-standard SN75188 and SN75189 bipolar quadruple drivers and receivers, respectively. The pinout matches the flow-through design of the SN75C185 to decrease the part count, reduce the board space required, and allow easy interconnection of the UART and serial-port connector of an IBM PC/AT and compatibles. The bipolar circuits and processing of the GD75232 provide a rugged, low-cost solution for this function at the expense of quiescent power and external passive components relative to the SN75C185. The GD75232 complies with the requirements of the TIA/EIA-232-F and ITU (formerly CCITT) V.28 standards. These standards are for data interchange between a host computer and a peripheral at signaling rates up to 20 kbit/s. The switching speeds of the GD75232 are fast enough to support rates up to 120 kbit/s with lower capacitive loads (shorter cables). Interoperability at the higher signaling rates cannot be expected unless the designer has design control of the cable and the interface circuits at both ends. For interoperability at signaling rates up to 120 kbit/s, use of ANSI TIA/EIA-423-B (ITU V.10) and TIA/EIA-422-B (ITU V.11) standards is recommended. The GD75232 is characterized for operation over the temperature range of 0°C to 70°C. 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. TI is a trademark of Texas Instruments Incorporated. IBM and PC/AT are trademarks of International Business Machines Corporation. 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 GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 logic symbol† RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 logic diagram (positive logic) 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 RA1 RY1 RY2 RA2 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 RY1 RY2 RY3 RA3 DA1 DA2 DY1 RY3 DA1 RY4 DA3 DY2 RY5 RA4 † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. DY3 RA5 DA2 RY4 DA3 RY5 schematic (each driver) To Other Drivers VDD 11.6 kΩ 9.4 kΩ Input DAx 75.8 Ω 320 Ω 4.2 kΩ GND To Other Drivers 10.4 kΩ 3.3 kΩ 68.5 Ω VSS To Other Drivers Resistor values shown are nominal. 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DYx Output GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 schematic (each receiver) To Other Receivers VCC 9 kΩ 5 kΩ 1.66 kΩ RYx Output 2 kΩ 3.8 kΩ Input RAx 10 kΩ GND To Other Receivers Resistor values shown are nominal. absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 V Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V Supply voltage, VSS (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V to 7 V Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 30 V to 30 V Driver output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V to 15 V Receiver low-level output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 60°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. NOTES: 1. All voltages are with respect to the network ground terminal. 2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 recommended operating conditions MIN NOM MAX Supply voltage, VDD 7.5 9 15 V Supply voltage, VSS – 7.5 –9 – 15 V Supply voltage, VCC 4.5 5 5.5 V High-level input voltage, VIH (driver only) 1.9 V Low-level input voltage, VIL (driver only) 0.8 Driver –6 High level output current, High-level current IOH Low level output current, current IOL Low-level Receiver – 0.5 Driver 6 Receiver 16 Operating free-air temperature, TA UNIT 0 70 V mA mA °C supply currents over recommended operating free-air temperature range PARAMETER TEST CONDITIONS All inputs at 1.9 V, IDD Supply current from VDD All inputs at 0.8 V, All inputs at 1.9 V, ISS 4 No load No load Supply current from VSS All inputs at 0.8 V, ICC No load Supply current from VCC VCC = 5 V, No load MAX VSS = – 9 V VSS = – 12 V 15 VDD = 15 V, VDD = 9 V, VSS = – 15 V VSS = – 9 V 25 VDD = 12 V, VDD = 15 V, VSS = – 12 V VSS = – 15 V 5.5 VDD = 9 V, VDD = 12 V, VDD = 15 V, VSS = – 9 V VSS = – 12 V – 15 VSS = – 15 V VSS = – 9 V – 25 VDD = 9 V, VDD = 12 V, VDD = 15 V, All inputs at 5, POST OFFICE BOX 655303 MIN VDD = 9 V, VDD = 12 V, • DALLAS, TEXAS 75265 VSS = – 12 V VSS = – 15 V No load 19 UNIT mA 4.5 mA 9 – 19 mA – 3.2 – 3.2 mA – 3.2 30 mA GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 DRIVER SECTION electrical characteristics over recommended operating free-air temperature range, VDD = 9 V, VSS = –9 V, VCC = 5 V (unless otherwise noted) PARAMETER VOH VOL High-level output voltage IIH IIL High-level input current IOS(H) IOS(L) rO TEST CONDITIONS MIN VIL = 0.8 V, VIH = 1.9 V, RL = 3 kΩ, See Figure 1 RL = 3 kΩ, See Figure 1 Low-level input current VI = 5 V, VI = 0, High-level short-circuit output current (see Note 4) VIL = 0.8 V, VO = 0, See Figure 1 – 4.5 VIH = 2 V, VO = 0, VCC = VDD = VSS = 0, See Figure 1 4.5 Low-level output voltage (see Note 3) Low-level short-circuit output current 6 TYP MAX 7.5 – 7.5 UNIT V –6 V See Figure 2 10 µA See Figure 2 – 1.6 mA – 12 – 19.5 mA 12 19.5 mA VO = – 2 V to 2 V 300 Ω NOTES: 3. The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic levels only (e.g., if – 10 V is maximum, the typical value is a more negative voltage). 4. Output short-circuit conditions must maintain the total power dissipation below absolute maximum ratings. 5. Test conditions are those specified by TIA/EIA-232-F and as listed above. Output resistance (see Note 5) switching characteristics, VCC = 5 V, VDD = 12 V, VSS = –12 V, TA = 25°C PARAMETER tPLH Propagation delay time, low- to high-level output TEST CONDITIONS RL = 3 kΩ to 7 kΩ, kΩ CL = 15 pF, pF MIN TYP MAX UNIT 315 500 ns 75 175 ns See Figure 3 tPHL Propagation delay time, high- to low-level output tTLH Transition time,, low- to high-level output RL = 3 kΩ to 7 kΩ, CL = 15 pF, See Figure 3 60 100 ns RL = 3 kΩ to 7 kΩ, CL = 2500 pF, See Figure 3 and Note 6 1.7 2.5 µs tTHL Transition time,, highg to low-level output RL = 3 kΩ to 7 kΩ, CL = 15 pF, See Figure 3 40 75 ns RL = 3 kΩ to 7 kΩ, CL = 2500 pF, See Figure 3 and Note 6 1.5 2.5 µs NOTE 6: Measured between ± 3-V and ± 3-V points of the output waveform ( TIA/EIA-232-F conditions), all unused inputs are tied either high or low. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 RECEIVER SECTION electrical characteristics over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS See Figure 5 TA = 25°C TA = 0°C to 70 °C MIN TYPĔ MAX 1.75 1.9 2.3 VIT IT+ Positive going input threshold voltage Positive-going VIT– Vhys Negative-going input threshold voltage 0.75 Input hysteresis voltage (VIT + – VIT–) 0.5 VOH High level output voltage High-level IOH = – 0.5 0 5 mA VIH = 0.75 V Inputs open VOL Low-level input voltage IIH High level input current High-level IOL = 10 mA, VI = 25 V, VI = 3 V See Figure 5 3.6 See Figure 5 0.43 IIL Low level output current Low-level VI = 3 V, VI = – 25 V, See Figure 5 – 3.6 VI = – 3 V, See Figure 5 – 0.43 1.55 2.6 2.3 0.97 1.25 4 5 0.2 0.45 2.6 IOS Short-circuit output current See Figure 4 † All typical values are at TA = 25°C, VCC = 5 V, VDD = 9 V, and VSS = – 9 V. 8.3 – 8.3 UNIT V V V mA mA – 3.4 –12 mA TYP MAX UNIT 107 250 ns switching characteristics, VCC = 5 V, VDD = 12 V, VSS = –12 V, TA = 25°C PARAMETER TEST CONDITIONS tPLH tPHL Propagation delay time, low- to high-level output tTLH tTHL Transition time, low- to high-level output tPLH tPHL tTLH tTHL Transition time, low- to high-level output 6 Propagation delay time, high- to low-level output MIN 42 150 ns 175 350 ns 16 60 ns Propagation delay time, low- to high-level output 100 160 ns Propagation delay time, high- to low-level output 60 100 ns 90 175 ns 15 50 ns CL = 50 pF, See Figure 6 RL = 5 kΩ, Transition time, high- to low-level output CL = 15 pF, See Figure 6 Transition time, high- to low-level output POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 RL = 1.5 kΩ, GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 PARAMETER MEASUREMENT INFORMATION IOS(L) VDD VCC VDD or GND – IOS(H) VSS or GND VI VO RL = 3 kΩ VSS Figure 1. Driver Test Circuit for VOH, VOL, IOS(H), and IOS(L) VDD VCC IIH VI – IIL VI VSS Figure 2. Driver Test Circuit for IIH and IIL 3V 1.5 V Input VDD Input V CC 1.5 V 0V t PHL Pulse Generator CL (see Note B) RL See Note A 90% Output VSS 50% 10% t PLH 50% 10% t THL 90% VOH VOL t TLH TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. B. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns. CL includes probe and jig capacitance. Figure 3. Driver Test Circuit and Voltage Waveforms POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 7 GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 PARAMETER MEASUREMENT INFORMATION VDD VCC VI VSS Figure 4. Receiver Test Circuit for IOS VDD VCC – IOH VIT, VI VOH VOL IOL VSS Figure 5. Receiver Test Circuit for VIT, VOH, and VOL 4V Input VDD Input 50% 50% 0V VCC t PHL Pulse Generator CL (see Note B) RL See Note A 90% Output 50% 10% t PLH 50% 10% VSS VOLTAGE WAVEFORMS NOTES: A. B. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf < 50 ns. CL includes probe and jig capacitance. Figure 6. Receiver Propagation and Transition Times 8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 VOH VOL t TLH t THL TEST CIRCUIT 90% GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 TYPICAL CHARACTERISTICS DRIVER SECTION OUTPUT CURRENT vs OUTPUT VOLTAGE ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ VOLTAGE TRANSFER CHARACTERISTICS VO VO – Output Voltage – V 9 6 3 0 –9 – 12 VDD = 9 V, VSS = – 9 V ÎÎÎÎ ÎÎÎÎ 8 4 0 –4 ÎÎÎ 3-kΩ Load Line –8 – 12 VOH(VI = 0.8 V) RL = 3 kΩ TA = 25°C – 16 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 VI – Input Voltage – V – 20 – 16 2 – 12 Figure 7 –8 –4 0 4 8 VO – Output Voltage – V ÁÁÁÁ ÁÁÁÁ ÎÎÎÎ ÁÁÁÁ ÎÎÎÎ ÁÁÁÁ 1000 VDD = 9 V VSS = – 9 V RL = 3 kΩ TA = 25°C IOS(L) (VI = 1.9 V) SR – Slew Rate – V/ µs 6 3 ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÁÁ ÎÎÎÎÎÎ ÁÁ 0 VDD = 9 V VSS = – 9 V VO = 0 –3 16 SLEW RATE vs LOAD CAPACITANCE 12 9 12 Figure 8 SHORT-CIRCUIT OUTPUT CURRENT vs FREE-AIR TEMPERATURE IIOS OS – Short-Circuit Output Current – mA VOL(VI = 1.9 V) 12 VDD = 6 V, VSS = – 6 V 0 VDD = 9 V VSS = – 9 V TA = 25°C 16 –3 –6 ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ 20 VDD = 12 V, VSS = – 12 V I O – Output Current – mA IO 12 100 10 –6 IOS(H) (VI = 0.8 V) –9 – 12 0 10 20 30 40 50 1 60 70 10 TA – Free-Air Temperature – °C 100 1000 10000 CL – Load Capacitance – pF Figure 9 Figure 10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 9 GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 TYPICAL CHARACTERISTICS INPUT THRESHOLD VOLTAGE vs SUPPLY VOLTAGE 2.4 2 2.2 1.8 VIT + 2 V – Input Threshold Voltage – V IT V – Input Threshold Voltage – V IT INPUT THRESHOLD VOLTAGE vs FREE-AIR TEMPERATURE 1.8 1.6 1.4 1.2 VIT – 1 0.8 0.6 0.4 VIT + 1.6 1.4 1.2 1 VIT– 0.8 0.6 0.4 0.2 0 10 20 30 40 50 60 0 2 70 TA – Free-Air Temperature – °C 3 Figure 11 4 5 6 7 8 VCC – Supply Voltage – V 9 10 Figure 12 ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÁÁÁÁ ÎÎÎÎÎ ÁÁÁÁ NOISE REJECTION 6 MAXIMUM SUPPLY VOLTAGE vs FREE-AIR TEMPERATURE VCC = 5 V TA = 25°C See Note A 5 16 ÁÁÁÁ ÁÁÁÁ ÎÎÎÎÎ ÁÁÁÁ ÎÎÎÎÎ ÁÁÁÁ 3 CC = 500 pF CC = 12 pF 2 CC = 100 pF 1 0 10 40 100 400 1000 4000 10000 tw – Pulse Duration – ns NOTE A: This figure shows the maximum amplitude of a positive-going pulse that, starting from 0 V, does not cause a change of the output level. 14 VDD – Maximum Supply Voltage – V Amplitude – V CC = 300 pF 4 12 10 8 6 4 2 RL ≥ 3 kΩ (from each output to GND) 0 0 Figure 13 10 10 20 30 40 50 60 TA – Free-Air Temperature – °C Figure 14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 70 GD75232 MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS206C – MAY 1995 – REVISED JULY 1998 APPLICATION INFORMATION Diodes placed in series with the VDD and VSS leads protect the GD75232 in the fault condition in which the device outputs are shorted to ± 15 V and the power supplies are at low and provide low-impedance paths to ground (see Figure 15). VDD ± 15 V VDD Output GD75232 GD75232 VSS VSS Figure 15. Power-Supply Protection to Meet Power-Off Fault Conditions of TIA/EIA-232-F – 12 V TL16C450 ACE 11 RI 43 12 DTR 37 13 CTS 40 14 SO 13 15 RTS 36 16 SI 11 17 DSR 41 18 DCD 42 19 20 GND VSS RY5 RA5 DA3 DY3 RY4 RA4 DA2 DY2 GD75232 DA1 DY1 RY3 RA3 RY2 RA2 RY1 RA1 VCC VDD 10 5 9 9 RI 8 DTR 7 CTS 6 TX 5 RTS 4 RX 3 DSR 2 DCD 1 C3 TIA/EIA-232-F DB9S Connector C2 C1 6 1 12 V 5V Figure 16. Typical Connection POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 11 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. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright 1998, Texas Instruments Incorporated