DUAL RS-232 DRIVER/RECEIVER

MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION www.ti.com SLLS723 – APRIL 2006 FEATURES • • • • • • • Meets or Exceeds TIA/RS-232-F and ITU Recommendation V.28 Operates From a Single 5-V Power Supply With 1.0-µF Charge-Pump Capacitors Operates up to 120 kbit/s Two Drivers and Two Receivers ±30-V Input Levels Low Supply Current . . . 8 mA Typical ESD Protection for RS-232 Bus Pins – ±15-kV Human-Body Model (HBM) – ±8-kV IEC61000-4-2, Contact Discharge – ±15-kV IEC61000-4-2, Air-Gap Discharge D, DW, N, NS, OR PW PACKAGE (TOP VIEW) C1+ VS+ C1− C2+ C2− VS− DOUT2 RIN2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC GND DOUT1 RIN1 ROUT1 DIN1 DIN2 ROUT2 APPLICATIONS • • • • • TIA/RS-232-F Battery-Powered Systems Terminals Modems Computers DESCRIPTION/ORDERING INFORMATION The MAX232E is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/RS-232-F voltage levels from a single 5-V supply. Each receiver converts TIA/RS-232-F inputs to 5-V TTL/CMOS levels. This receiver has a typical threshold of 1.3 V, a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Each driver converts TTL/CMOS input levels into TIA/RS-232-F levels. The driver, receiver, and voltage-generator functions are available as cells in the Texas Instruments LinASIC™ library. 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 is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2006, Texas Instruments Incorporated MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 www.ti.com ORDERING INFORMATION TA PDIP – N SOIC – D 0°C to 70°C SOIC – DW SOP – NS TSSOP – PW PDIP – N SOIC – D –40°C to 85°C SOIC – DW SOP – NS TSSOP – PW PACKAGE (1) Tube of 25 Tube of 40 Reel of 2500 Tube of 40 Reel of 2000 Reel of 2000 Tube of 25 Reel of 2000 Tube of 25 Tube of 40 Reel of 2500 Tube of 40 Reel of 2000 Reel of 2000 Tube of 25 Reel of 2000 ORDERABLE PART NUMBER MAX232ECN MAX232ECD MAX232ECDR MAX232ECDW MAX232ECDWR MAX232ECNSR MAX232ECPW MAX232ECPWR MAX232EIN MAX232EID MAX232EIDR MAX232EIDW MAX232EIDWR MAX232EINSR MAX232EIPW MAX232EIPWR TOP-SIDE MARKING MAX232ECN MAX232EC MAX232EC Preview MAX232EC MAX232EIN MAX232EI MAX232EI Preview MB232EI (1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 2 Submit Documentation Feedback www.ti.com MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 FUNCTION TABLES ABC Each Driver (1) INPUT DIN L H (1) OUTPUT DOUT H L H = high level, L = low level Each Receiver (1) INPUT RIN L H (1) OUTPUT ROUT H L H = high level, L = low level LOGIC DIAGRAM (POSITIVE LOGIC) 11 DIN1 10 DIN2 12 ROUT1 9 ROUT2 8 RIN2 13 RIN1 7 DOUT2 14 DOUT1 Submit Documentation Feedback 3 MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 www.ti.com Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN VCC VS+ VS– VI VO DOUT Input supply voltage range (2) Positive output supply voltage range Negative output supply voltage range Input voltage range Output voltage range Short-circuit duration D package DW package θJA Package thermal impedance (3) (4) N package NS package PW package TJ Tstg (1) (2) (3) (4) Operating virtual junction temperature Storage temperature range –65 Driver Receiver DOUT ROUT VS– – 0.3 –0.3 –0.3 VCC – 0.3 –0.3 –0.3 MAX 6 15 –15 VCC + 0.3 ±30 VS+ + 0.3 VCC + 0.3 Unlimited 73 57 67 64 108 150 150 °C °C °C/W UNIT V V V V V 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. All voltages are with respect to network GND. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability. The package thermal impedance is calculated in accordance with JESD 51-7. Recommended Operating Conditions MIN VCC VIH VIL RIN1, RIN2 TA Supply voltage High-level input voltage (DIN1, DIN2) Low-level input voltage (DIN1, DIN2) Receiver input voltage Operating free-air temperature MAX232EC MAX232EI 0 –40 4.5 2 0.8 ±30 70 85 NOM 5 MAX 5.5 UNIT V V V V °C Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4) PARAMETER ICC (1) (2) Supply current TEST CONDITIONS VCC = 5.5 V, All outputs open, TA = 25°C MIN TYP (2) MAX 8 10 UNIT mA Test conditions are C1–C4 = 1 µF at VCC = 5 V ± 0.5 V. All typical values are at VCC = 5 V and TA = 25°C. 4 Submit Documentation Feedback www.ti.com MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 DRIVER SECTION abc Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature range PARAMETER VOH VOL ro IIS (1) (2) (3) (4) High-level output voltage Low-level output voltage (3) Output resistance Short-circuit input current DOUT DOUT DOUT DOUT DIN TEST CONDITIONS RL = 3 kΩ to GND RL = 3 kΩ to GND VS+ = VS– = 0, VCC = 5.5 V, VI = 0 VO = ±2 V VO = 0 300 ±10 200 MIN 5 TYP (2) 7 –7 –5 MAX UNIT V V Ω mA µA IOS (4) Short-circuit output current Test conditions are C1–C4 = 1 µF at VCC = 5 V ± 0.5 V. All typical values are at VCC = 5 V and 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 (1) VCC = 5 V, TA = 25°C (see Note 4) PARAMETER SR SR(t) Driver slew rate Driver transition region slew rate Data rate (1) Test conditions are C1–C4 = 1 µF at VCC = 5 V ± 0.5 V. TEST CONDITIONS RL = 3 kΩ to 7 kΩ, See Figure 2 See Figure 3 One DOUT switching 3 120 MIN TYP MAX 30 UNIT V/µs V/µs kbit/s ESD protection PARAMETER HBM DOUT, RIN IEC61000-4-2, Air-Gap Discharge IEC61000-4-2, Contact Discharge TEST CONDITIONS TYP ±15 ±15 ±8 UNIT kV kV kV Submit Documentation Feedback 5 MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 www.ti.com RECEIVER SECTION abc Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature range PARAMETER VOH VOL VIT+ VIT– Vhys ri (1) (2) (3) High-level output voltage Low-level output voltage (3) Receiver positive-going input threshold voltage Receiver negative-going input threshold voltage Input hysteresis voltage Receiver input resistance ROUT ROUT RIN RIN RIN RIN TEST CONDITIONS IOH = –1 mA IOL = 3.2 mA VCC = 5 V, VCC = 5 V, VCC = 5 V VCC = 5 V, TA = 25°C TA = 25°C TA = 25°C 0.8 0.2 3 1.7 1.2 0.5 5 1 7 MIN TYP (2) 3.5 0.4 2.4 MAX UNIT V V V V V kΩ Test conditions are C1–C4 = 1 µF at VCC = 5 V ± 0.5 V. All typical values are at VCC = 5 V and 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. Switching Characteristics (1) VCC = 5 V, TA = 25°C (see Figure 1) PARAMETER tPLH(R) tPHL(R) (1) Receiver propagation delay time, low- to high-level output Receiver propagation delay time, high- to low-level output TYP 500 500 UNIT ns ns Test conditions are C1–C4 = 1 µF at VCC = 5 V ± 0.5 V. 6 Submit Documentation Feedback www.ti.com MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 PARAMETER MEASUREMENT INFORMATION VCC RL = 1.3 kΩ Pulse Generator (see Note A) RIN ROUT See Note C CL = 50 pF (see Note B) TEST CIRCUIT ≤10 ns 90% 50% 90% 50% ≤10 ns 3V 10% tPLH VOH Output 1.5 V 1.5 V WAVEFORMS VOL 0V Input 10% 500 ns tPHL A. B. C. The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%. CL includes probe and jig capacitance. All diodes are 1N3064 or equivalent. Figure 1. Receiver Test Circuit and Waveforms for tPHL and tPLH Measurements Submit Documentation Feedback 7 MAX232E DUAL RS-232 DRIVER/RECEIVER WITH IEC61000-4-2 PROTECTION SLLS723 – APRIL 2006 www.ti.com PARAMETER MEASUREMENT INFORMATION (continued) Pulse Generator (see Note A) DIN DOUT RS-232 Output RL CL = 10 pF (see Note B) TEST CIRCUIT ≤10 ns Input 10% 90% 50% 5 µs tPHL 90% Output tTHL 0.8 (V SR + 10% 10% tTLH –V ) 0.8 (V –V ) OH OL OL OH or t t TLH THL WAVEFORMS tPLH VOH VOL 90% 50% ≤10 ns 3V 10% 0V 90% A. B. The pulse generator has the following characteristics: ZO = 50 Ω, duty cycle ≤ 50%. 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) DIN DOUT 3 kΩ CL = 2.5 nF RS-232 Output TEST CIRCUIT ≤10 ns Input 10% 90% 1.5 V 90% 1.5 V 10% tTLH 3V −3 V SR + 6V tTHL or t TLH VOH VOL ≤10 ns 20 µs tTHL Output 3V −3 V WAVEFORMS 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) 8 Submit