MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998 D D D D D D D D D D Operates With Single 5-V Power Supply LinBiCMOS Process Technology Two Drivers and Two Receivers ± 30-V Input Levels Low Supply Current . . . 8 mA Typical Meets or Exceeds TIA/EIA-232-F and ITU Recommendation V.28 Designed to be Interchangeable With Maxim MAX232 Applications TIA/EIA-232-F Battery-Powered Systems Terminals Modems Computers ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015 Package Options Include Plastic Small-Outline (D, DW) Packages and Standard Plastic (N) DIPs D, DW, OR N PACKAGE (TOP VIEW) C1+ VS+ C1– C2+ C2– VS– T2OUT R2IN 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 VCC GND T1OUT R1IN R1OUT T1IN T2IN R2OUT logic symbol† VCC 16 C1+ C1 – C2 + C2 – T1IN description The MAX232 device is a dual driver/receiver that includes a capacitive voltage generator to supply EIA-232 voltage levels from a single 5-V supply. Each receiver converts EIA-232 inputs to 5-V TTL/CMOS levels. These receivers have a typical threshold of 1.3 V and a typical hysteresis of 0.5 V, and can accept ± 30-V inputs. Each driver converts TTL/CMOS input levels into EIA-232 levels. The driver, receiver, and voltage-generator functions are available as cells in the Texas Instruments LinASIC library. 1 T2IN R1OUT R2OUT 1 3 4 5 C1+ VCC C1– 2VCC – 1.5 V C2+ –2VCC + 1.5 V 2 V S+ 6 VS – C2– 11 14 10 7 12 13 T1OUT T2OUT R1IN 8 9 0V R2IN 15 GND † This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. The MAX232 is characterized for operation from 0°C to 70°C. The MAX232I is characterized for operation from – 40°C to 85°C. AVAILABLE OPTIONS PACKAGED DEVICES TA 0°C to 70°C SMALL OUTLINE (D) MAX232D‡ SMALL OUTLINE (DW) MAX232DW‡ MAX232IDW‡ MAX232ID‡ PLASTIC DIP (N) MAX232N – 40°C to 85°C MAX232IN ‡ This device is available taped and reeled by adding an R to the part number (i.e., MAX232DR). 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. LinASIC and LinBiCMOS are trademarks of Texas Instruments Incorporated. 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 MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Input supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to 6 V Positive output supply voltage range, VS+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC – 0.3 V to 15 V Negative output supply voltage range, VS – . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to –15 V Input voltage range, VI: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to VCC + 0.3 V Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 30 V Output voltage range, VO: T1OUT, T2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS – – 0.3 V to VS+ + 0.3 V R1OUT, R2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to VCC + 0.3 V Short-circuit duration: T1OUT, T2OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unlimited Package thermal impedance, θJA (see Note 2): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113°C/W DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78°C/W 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: All voltage values are with respect to 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. recommended operating conditions Supply voltage, VCC High-level input voltage, VIH (T1IN,T2IN) MIN NOM MAX 4.5 5 5.5 2 UNIT V V Low-level input voltage, VIL (T1IN, T2IN) 0.8 V Receiver input voltage, R1IN, R2IN ±30 V Operating free-air free air temperature,T temperature TA 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MAX232 0 70 MAX232I –40 85 °C MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998 electrical characteristics over recommended ranges of supply voltage and operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† 7 T1OUT, T2OUT RL = 3 kΩ to GND 5 R1OUT, R2OUT 3.5 T1OUT, T2OUT IOH = – 1 mA RL = 3 kΩ to GND R1OUT, R2OUT IOL = 3.2 mA Receiver positive-going input threshold voltage R1IN, R2IN VCC = 5 V, TA = 25°C Receiver negative-going input threshold voltage R1IN, R2IN VCC = 5 V, TA = 25°C Vhys ri Input hysteresis voltage R1IN, R2IN Receiver input resistance R1IN, R2IN VCC = 5 V VCC = 5, ro Output resistance T1OUT, T2OUT IOS§ IIS Short-circuit output current T1OUT, T2OUT Short-circuit input current T1IN, T2IN VOH High-level out output ut voltage VOL Low level output voltage‡ Low-level VIT+ VIT– ICC Supply current VS+ = VS – = 0, VCC = 5.5 V, VI = 0 VCC = 5.5 V, TA = 25°C –7 MAX V –5 0.4 TA = 25°C VO = ± 2 V 1.7 UNIT 2.4 V V 0.8 1.2 V 0.2 0.5 1 V 3 5 7 kΩ Ω 300 ±10 VO = 0 All outputs open, 8 mA 200 µA 10 mA † All typical values are at VCC = 5 V, TA = 25°C. ‡ The algebraic convention, in which the least positive (most negative) value is designated minimum, is used in this data sheet for logic voltage levels only. § Not more than one output should be shorted at a time. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER tPLH(R) tPHL(R) TEST CONDITIONS MIN TYP MAX UNIT Receiver propagation delay time, low- to high-level output See Figure 1 500 ns Receiver propagation delay time, high- to low-level output See Figure 1 500 ns SR Driver slew rate RL = 3 kΩ to 7 kΩ, See Figure 2 SR(tr) Driver transition region slew rate See Figure 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 30 3 V/µs V/µs 3 MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998 PARAMETER MEASUREMENT INFORMATION VCC Pulse Generator (see Note A) RL = 1.3 kΩ R1OUT or R2OUT R1IN or R2IN See Note C CL = 50 pF (see Note B) TEST CIRCUIT ≤ 10 ns ≤ 10 ns Input 10% 90% 50% 90% 50% 3V 10% 0V 500 ns tPLH tPHL VOH Output 1.5 V 1.5 V VOL WAVEFORMS NOTES: A. The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%. B. CL includes probe and jig capacitance. C. All diodes are 1N3064 or equivalent. Figure 1. Receiver Test Circuit and Waveforms for tPHL and tPLH Measurements 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998 PARAMETER MEASUREMENT INFORMATION T1IN or T2IN Pulse Generator (see Note A) T1OUT or T2OUT EIA-232 Output CL = 10 pF (see Note B) RL TEST CIRCUIT ≤ 10 ns ≤ 10 ns 90% 50% Input 10% 3V 90% 50% 10% 0V 5 µs tPLH tPHL 90% Output 90% 10% 10% VOL tTLH tTHL SR + VOH 0.8 (V t –V OH ) OL 0.8 (V or –V ) OL OH t TLH THL WAVEFORMS NOTES: A. The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%. B. CL includes probe and jig capacitance. Figure 2. Driver Test Circuit and Waveforms for tPHL and tPLH Measurements (5-µs input) Pulse Generator (see Note A) EIA-232 Output 3 kΩ CL = 2.5 nF TEST CIRCUIT ≤ 10 ns ≤ 10 ns Input 90% 1.5 V 10% 90% 1.5 V 10% 20 µs tTLH tTHL Output 3V 3V –3 V –3 V SR +t THL 6 V or t VOH VOL TLH WAVEFORMS NOTE A: The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%. Figure 3. Test Circuit and Waveforms for tTHL and tTLH Measurements (20-µs input) POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 5 MAX232, MAX232I DUAL EIA-232 DRIVER/RECEIVER SLLS047G – FEBRUARY 1989 – REVISED AUGUST 1998 APPLICATION INFORMATION 5V 16 1 µF C1+ 3 From CMOS or TTL To CMOS or TTL 2 VS – C2+ 5 6 + C2– 11 14 10 7 12 13 9 8 0V 15 GND Figure 4. Typical Operating Circuit 6 8.5 V VS + C1– 4 1 µF 1 µF VCC 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 – 8.5 V 1 µF EIA-232 Output EIA-232 Output EIA-232 Input EIA-232 Input 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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