MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 D D D D D D D D D DB OR PW PACKAGE (TOP VIEW) Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards Operates With 3-V to 5.5-V VCC Supply Operates up to 250 kbit/s Low Standby Current . . . 1 A Typical External Capacitors . . . 4 x 0.1 F Accepts 5-V Logic Input With 3.3-V Supply Designed to Be Interchangeable With Maxim MAX3221 RS-232 Bus-Pin ESD Protection Exceeds 15-kV Using Human-Body Model (HBM) Applications - Battery-Powered Systems, PDAs, Notebooks, Laptops, Palmtop PCs, and Hand-Held Equipment Package Options Include Plastic Shrink Small-Outline (DB) and Thin Shrink Small-Outline (PW) Packages EN C1+ V+ C1- C2+ C2- V- RIN 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 FORCEOFF VCC GND DOUT FORCEON DIN INVALID ROUT description The MAX3221 device consists of one line driver, one line receiver, and a dual charge-pump circuit with 15-kV ESD protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V supply. These devices operate at data signaling rates up to 250 kbit/s, and at a maximum of 30-V/s driver output slew rate. Flexible control options for power management are available when the serial port is inactive. The auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF is set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1 A. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With auto-powerdown enabled, the device is activated automatically when a valid signal is applied to any receiver input. The INVALID output notifies the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any receiver input voltage is greater than 2.7 V or less than -2.7 V, or has been between -0.3 V and 0.3 V for less than 30 s. INVALID is low (invalid data) if the receiver input voltage is between -0.3 V and 0.3 V for more than 30 s. Refer to Figure 5 for receiver input levels. The MAX3221C is characterized for operation from 0C to 70C. The MAX3221I is characterized for operation from -40C to 85C. 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 2000, Texas Instruments Incorporated PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 1 PRODUCT PREVIEW D MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 AVAILABLE OPTIONS PACKAGED DEVICES TA SHRINK SMALL OUTLINE (DB) THIN SHRINK SMALL OUTLINE (PW) 0C to 70C MAX3221CDB MAX3221CPW - 40C to 85C MAX3221IDB MAX3221IPW The DB and PW packages are available taped and reeled. Add the suffix R to device type (e.g., MAX3221CDBR). Function Tables EACH DRIVER INPUTS PRODUCT PREVIEW DIN FORCEON FORCEOFF VALID RIN RS-232 LEVEL OUTPUT DOUT DRIVER STATUS X X L X Z Powered off L H H X H H H H X L Normal operation with auto-powerdown disabled L L H Yes H H L H Yes L L L H No Z H L H No Z Normal operation with auto-powerdown enabled Powered off by y auto-powerdown feature H = high level, L = low level, X = irrelevant, Z = high impedance EACH RECEIVER INPUTS OUTPUT ROUT RIN EN VALID RIN RS-232 LEVEL L L X H L X L X H X Z Open L No H H H = high level, L = low level, X = irrelevant, Z = high impedance (off), Open = disconnected input or connected driver off logic diagram (positive logic) DIN FORCEOFF FORCEON ROUT 11 13 16 12 Auto-powerdown 9 10 8 1 2 DOUT POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 INVALID RIN EN MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 6 V Positive output supply voltage range, V+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 7 V Negative output supply voltage range, V- (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to - 7 V Supply voltage difference, V+ - V- (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 V Input voltage range, VI: Driver (FORCEOFF, FORCEON, EN) . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to 6 V Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 25 V to 25 V Output voltage range, VO: Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -13.2 V to 13.2 V Receiver (INVALID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 0.3 V to VCC + 0.3 V Package thermal impedance, JA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82C/W PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108C/W Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to 150C PRODUCT PREVIEW 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 network GND. 2. The package thermal impedance is calculated in accordance with JESD 51. recommended operating conditions (see Note 3 and Figure 6) VCC = 3.3 V VCC = 5 V Supply voltage VIH Driver and control high-level high level input voltage DIN,, FORCEOFF,, FORCEON,, EN VIL VI Driver and control low-level input voltage DIN, FORCEOFF, FORCEON, EN Driver and control input voltage DIN, FORCEOFF, FORCEON VI Receiver input voltage TA VCC = 3.3 V VCC = 5 V MAX3221C Operating O erating free-air tem temperature erature MAX3221I MIN NOM MAX 3 3.3 3.6 4.5 5 5.5 2 UNIT V V 2.4 0.8 V 0 5.5 V -25 25 V 0 70 -40 85 C NOTE 3: Test conditions are C1-C4 = 0.1 F at VCC = 3.3 V 0.3 V; C1 = 0.047 F, C2-C4 = 0.33 F at VCC = 5 V 0.5 V. electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3 and Figure 6) PARAMETER II ICC Input leakage current Supply Su ly current TEST CONDITIONS FORCEOFF, FORCEON, EN MIN TYP MAX 0.01 1 A 0.3 1 mA Auto-powerdown disabled No load, FORCEOFF and FORCEON at VCC Powered off No load, FORCEOFF at GND 1 10 Auto-powerdown enabled No load, FORCEOFF at VCC, FORCEON at GND, All RIN are open or grounded 1 10 UNIT A All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. NOTE 3: Test conditions are C1-C4 = 0.1 F at VCC = 3.3 V 0.3 V; C1 = 0.047 F, C2-C4 = 0.33 F at VCC = 5 V 0.5 V. POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 3 MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 DRIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3 and Figure 6) MIN TYP VOH VOL High-level output voltage DOUT at RL = 3 k to GND, DIN = GND 5 5.4 Low-level output voltage DOUT at RL = 3 k to GND, DIN = VCC -5 IIH IIL High-level input current VI = VCC VI at GND PARAMETER IOS Low-level input current Short circ it output Short-circuit o tp t current c rrent TEST CONDITIONS VCC = 3.6 V, VCC = 5.5 V, VO = 0 V VO = 0 V MAX UNIT V -5.4 V 0.01 1 A 0.01 1 A 35 60 mA Output resistance VCC, V+, and V- = 0 V, VO = 2 V 300 10M Ioff Output leakage current FORCEOFF = GND, VO = 12 V, VCC = 0 to 5.5 V 25 A All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one output should be shorted at a time. NOTE 3: Test conditions are C1-C4 = 0.1 F at VCC = 3.3 V 0.3 V; C1 = 0.047 F, C2-C4 = 0.33 F at VCC = 5 V 0.5 V. PRODUCT PREVIEW ro switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3 and Figure 6) PARAMETER TEST CONDITIONS MIN Maximum data rate CL = 1000 pF, RL = 3 k, See Figure 1 tsk(p) Pulse skew CL = 150 pF to 2500 pF RL = 3 k to 7 k See Figure 2 SR(tr) Slew rate, transition region g (see Figure 1) VCC = 3.3 V, RL = 3 k to 7 k TYP POST OFFICE BOX 655303 100 ns CL = 150 pF to 1000 pF 6 30 CL = 150 pF to 2500 pF 4 30 * DALLAS, TEXAS 75265 UNIT kbit/s All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. Pulse skew is defined as |tPLH - tPHL| of each channel of the same device. NOTE 3: Test conditions are C1-C4 = 0.1 F at VCC = 3.3 V 0.3 V; C1 = 0.047 F, C2-C4 = 0.33 F at VCC = 5 V 0.5 V. 4 MAX 250 V/s MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 RECEIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3 and Figure 6) MIN TYP VCC - 0.6 V VCC - 0.1 V TEST CONDITIONS High-level output voltage IOH = -1 mA IOL = 1.6 mA Low-level output voltage VIT IT+ Positive going input threshold voltage Positive-going VCC = 3.3 V VCC = 5 V VIT IT- Negative going input threshold voltage Negative-going VCC = 3.3 V VCC = 5 V Vhys Ioff Input hysteresis (VIT+ - VIT-) MAX V 0.4 1.6 2.4 1.9 2.4 0.6 1.1 0.8 1.4 FORCEOFF = 0 V 0.05 ri Input resistance VI = 3 V to 25 V 3 5 All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. NOTE 3: Test conditions are C1-C4 = 0.1 F at VCC = 3.3 V 0.3 V; C1 = 0.047 F, C2-C4 = 0.33 F at VCC = 5 V 0.5 V. V V V 0.5 Output leakage current UNIT V 10 A 7 k switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 3) PARAMETER TEST CONDITIONS tPLH tPHL Propagation delay time, low- to high-level output ten tdis Output enable time Propagation delay time, high- to low-level output Output disable time CL = 150 pF, pF See Figure 3 CL = 150 pF, pF RL = 3 k k, See Figure 4 MIN TYP * DALLAS, TEXAS 75265 UNIT 150 ns 150 ns 200 ns 200 ns tsk(p) Pulse skew See Figure 3 50 All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. Pulse skew is defined as |tPLH - tPHL| of each channel of the same device. NOTE 3: Test conditions are C1-C4 = 0.1 F at VCC = 3.3 V 0.3 V; C1 = 0.047 F, C2-C4 = 0.33 F at VCC = 5 V 0.5 V. POST OFFICE BOX 655303 MAX ns 5 PRODUCT PREVIEW PARAMETER VOH VOL MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 AUTO-POWERDOWN SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5) PARAMETER TEST CONDITIONS MIN VT+(valid) Receiver input threshold for INVALID high-level output voltage FORCEON = GND, FORCEOFF = VCC VT-(valid) Receiver input threshold for INVALID high-level output voltage FORCEON = GND, FORCEOFF = VCC -2.7 VT(invalid) Receiver input threshold for (INVALID) low-level output voltage FORCEON = GND, FORCEOFF = VCC -0.3 VOH INVALID high-level output voltage IOH = -1 mA, FORCEON = GND, FORCEOFF = VCC VOL INVALID low-level output voltage IOL = 1.6 mA, FORCEON = GND, FORCEOFF = VCC TYP MAX 2.7 UNIT V V 0.3 VCC - 0.6 V V 0.4 V PRODUCT PREVIEW All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. switching characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5) PARAMETER tvalid tinvalid MIN Propagation delay time, low- to high-level output Propagation delay time, high- to low-level output ten Supply enable time All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25C. 6 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 TYP MAX UNIT 1 s 30 s 100 s MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 PARAMETER MEASUREMENT INFORMATION 3V Generator (see Note B) Input RS-232 Output 50 RL 0V tTHL CL (see Note A) 3V FORCEOFF Output SR(tr) TEST CIRCUIT + 6 V t THL or t TLH tTLH VOH 3V 3V -3 V -3 V VOL VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 , 50% duty cycle, tr 10 ns, tf 10 ns. Figure 1. Driver Slew Rate 3V 50 RL 1.5 V 1.5 V 0V CL (see Note A) PRODUCT PREVIEW Generator (see Note B) RS-232 Output Input tPLH tPHL VOH 3V FORCEOFF 50% 50% Output VOL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50 , 50% duty cycle, tr 10 ns, tf 10 ns. Figure 2. Driver Pulse Skew 3 V or 0 V FORCEON 3V Input 1.5 V 1.5 V -3 V Output Generator (see Note B) 50 3V FORCEOFF tPHL CL (see Note A) tPLH VOH 50% Output 50% VOL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: ZO = 50 , 50% duty cycle, tr 10 ns, tf 10 ns. Figure 3. Receiver Propagation Delay Times POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 7 MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 PARAMETER MEASUREMENT INFORMATION 3V Input 3 V or 0 V FORCEON VCC S1 1.5 V GND -3 V tPZH (S1 at GND) tPHZ (S1 at GND) RL 3 V or 0 V 1.5 V VOH Output 50% Output CL (see Note A) EN Generator (see Note B) 50 0.3 V tPZL (S1 at VCC) tPLZ (S1 at VCC) 0.3 V Output 50% VOL TEST CIRCUIT PRODUCT PREVIEW NOTES: A. B. C. D. VOLTAGE WAVEFORMS CL includes probe and jig capacitance. The pulse generator has the following characteristics: ZO = 50 , 50% duty cycle, tr 10 ns, tf 10 ns. tPLZ and tPHZ are the same as tdis. tPZL and tPZH are the same as ten. Figure 4. Receiver Enable and Disable Times 8 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 PARAMETER MEASUREMENT INFORMATION 2.7 V 2.7 V 0V Receiver Input 0V ROUT Generator (see Note B) 3V -2.7 V -2.7 V 50 tinvalid -3 V tvalid VCC INVALID CL = 30 pF (see Note A) FORCEOFF FORCEON DIN DOUT INVALID Output 50% VCC 0V ten V+ V+ 0.3 V VCC 0V 0.3 V Supply Voltages V- V- TEST CIRCUIT PRODUCT PREVIEW Autopowerdown 50% VCC VOLTAGE WAVEFORMS IIIIIIIIIIII IIIIIIIIIIII IIIIIIIIIIII IIIIIIIIIIII IIIIIIIIIIII IIIIIIIIIIII Valid RS-232 Level, INVALID High 2.7 V Indeterminate 0.3 V 0V If Signal Remains Within This Region For More Than 30 s, INVALID Is Low -0.3 V Indeterminate -2.7 V Valid RS-232 Level, INVALID High Auto-powerdown disables drivers and reduces supply current to 1 A. NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: PRR = 5 kbit/s, ZO = 50 , 50% duty cycle, tr 10 ns, tf 10 ns. Figure 5. INVALID Propagation Delay Times and Driver Enabling Time POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 9 MAX3221 3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER SLLS348B - JUNE 1999 - REVISED JANUARY 2000 APPLICATION INFORMATION EN 1 16 2 15 VCC C1+ + 3 C1 + + - - V+ Autopowerdown C3 4 GND - 14 6 C2- 7 - PRODUCT PREVIEW RIN 12 C2 11 V- 10 C4 + DOUT C2+ + - CBYPASS = 0.1 F C1- 13 5 FORCEOFF 8 9 FORCEON DIN INVALID ROUT 5 k C3 can be connected to VCC or GND. NOTE A: Resistor values shown are nominal. VCC vs CAPACITOR VALUES VCC C1 C2, C3, and C4 3.3 V 0.3 V 5 V 0.5 V 3 V to 5.5 V 0.1 F 0.047 F 0.1 F 0.1 F 0.33 F 0.47 F Figure 6. Typical Operating Circuit and Capacitor Values 10 POST OFFICE BOX 655303 * DALLAS, TEXAS 75265 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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