ST232 5V Powered multi-channel RS-232 drivers and receivers Feature summary ■ Supply voltage range: 4.5 to 5.5V ■ Supply current no load (typ): 5mA ■ Transmitter output voltage swing (typ): ±7.8V ■ Controlled output slew rate ■ Receiver input voltage range: ±30V ■ Data rate (typ): 220Kbps ■ Operating temperature range: – -40° to 85°C – 0° to 70°C ■ Compatible with MAX232 and MAX202 DIP SOP SOP Large TSSOP Description The ST232 is a 2 driver, 2 receiver device following EIA/TIA-232 and V.28 communication standard. It is particularly suitable for applications where ±12V is not available. The ST232 uses a single 5V power supply and only four external capacitors (0.1mF). Typical applications are in: Portable Computers, Low Power Modems, Interfaces Translation, Battery Powered RS-232 System, Multi-Drop RS-232 Networks. . Order codes Part number Temperature Range Package Packaging ST232CN ST232BN ST232CD ST232BD ST232CDR ST232BDR ST232CW ST232BW ST232CWR ST232BWR ST232CTR ST232BTR 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C 0 to 70 °C -40 to 85 °C DIP-16 DIP-16 SO-16 (Tube) SO-16 (Tube) SO-16 (Tape & Reel) SO-16 (Tape & Reel) SO-16 Large (Tube) SO-16 Large (Tube) SO-16 Large (Tape & Reel) SO-16 Large (Tape & Reel) TSSOP16 (Tape & Reel) TSSOP16 (Tape & Reel) 25parts per tube / 40tube per box 25parts per tube / 40tube per box 50parts per tube / 20tube per box 50parts per tube / 20tube per box 2500 parts per reel 2500 parts per reel 49 parts per tube / 25 tube per box 49 parts per tube / 25 tube per box 1000 parts per reel 1000 parts per reel 2500 parts per reel 2500 parts per reel October 2006 Rev. 12 1/19 www.st.com 19 ST232 Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2/19 ST232 Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) Table 1. Pin description PlN N° SYMBOL NOTE 1 C1+ Positive terminal for the first charge pump capacitor 2 V+ Doubled voltage terminal 3 C1- Negative terminal for the first charge pump capacitor 4 C2+ Positive terminal for the second charge pump capacitor 5 C2- Negative terminal for the second charge pump capacitor 6 V- Inverted voltage terminal 7 T2OUT 8 R2IN 9 R2OUT Second receiver output voltage 10 T2IN Second transmitter input voltage 11 T1IN First transmitter input voltage 12 R1OUT First receiver output voltage 13 R1IN 14 T1OUT 15 GND Ground 16 VCC Supply voltage Second transmitter output voltage Second receiver input voltage First receiver input voltage First transmitter output voltage 3/19 Maximum ratings ST232 2 Maximum ratings Table 2. Absolute maximum ratings Symbol Parameter VCC Supply voltage TIN Transmitter input voltage range RIN Receiver input voltage range Value Unit -0.3 to 6 V -0.3 to (VCC + 0.3) V ± 30 V (V+ + 0.3) to (V- - 0.3) V V TOUT Transmitter output voltage range ROUT Receiver output voltage range -0.3 to (VCC + 0.3) TSCTOUT Short circuit duration on TOUT infinite TSTG Note: Note: 4/19 Storage temperature range -65 to + 150 Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. 1 No external supply can be applied to V+ terminal and V- terminal. ST232 Electrical characteristics 3 Electrical characteristics Table 3. Electrical characteristics (C1 - C4 = 0.1µF, VCC = 5V ± 10%, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C). Symbol ISUPPLY Table 4. Parameter Test VCC Power supply current Min. No Load, TA = 25°C Typ. Max. Unit 5 10 mA Transmitter electrical characteristics (C1 - C4 = 0.1µF, VCC = 5V ± 10%, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C). Symbol Parameter Test All transmitter outputs are loaded with 3KΩ to GND Min. Typ. ±5 ± 7.8 VTOUT Output voltage swing ITIL Input leakage current VTIL Input logic threshold low VTIH Input logic threshold high SRT Transition slew rate TA = 25°C, VCC = 5V RL = 3 to 7KΩ, CL = 50 to 2500pF (1) DR Data rate (2) 120 RTOUT Transmitter output resistance VCC = V+ = V- = 0V VOUT = ± 2V 300 ISC Transmitter output short circuit current One TXOUT to GND Max. Unit V ± 40 0.8 µA V 7 2 V 30 V/µs 220 Kbits/s Ω ±10 ±60 mA 1. Measured from 3V to -3V or from -3V to 3V 2. One transmitter output is loaded with RL = 3KΩ to 7KΩ, CL = 50 to 1000pF 5/19 Electrical characteristics Table 5. Symbol ST232 Receiver electrical characteristics (C1 - C4 = 0.1µF, VCC = 5V ± 10%, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C). Parameter Test Min. Typ. VRIN Receiver input voltage operating range RRIN RS-232 Input resistance TA = 25°C, VCC = 5 V, VRIN = 5V 3 5 VRIL RS-232 Input threshold low TA = 25°C, VCC = 5 V 0.8 1.2 VRIH RS-232 Input threshold high TA = 25°C, VCC = 5 V RS-232 Input hysteresis VCC = 5V VROL TTL/CMOS Output voltage low IOUT = 3.2mA (to VCC) VROH TTL/CMOS Output voltage high IOUT = -1mA (to GND) ISCR Receiver output short circuit current tDR Receiver propagation delay VRIHYS 1. RS-232 in to TTL-CMOS out (from 50% to 50%) 6/19 -30 CL = 150pF (1) 0.2 3.5 Max. Unit 30 V 7 KΩ V 1.7 2.4 V 0.5 1 V 0.4 V VCC-0.4 V ±10 mA 0.3 1 µs ST232 Typical application 4 Typical application Figure 2. Application circuit (1) (2) 1. C1-4 capacitors can even be 1µF ones 2. C1-4 can be common or biased capacitors Table 6. Capacitance value (µF) C1 C2 C3 C4 C5 0.1 0.1 0.1 0.1 0.1 7/19 Typical performance characteristics ST232 5 Typical performance characteristics Figure 3. (Unless otherwise specified TJ = 25°C). Supply current vs temperature Figure 4. Data rate vs temperature Figure 5. Receiver propagation delay Figure 6. Driver propagation delay Figure 7. High level output voltage swing vs temperature Figure 8. Low level output voltage swing vs temperature 8/19 ST232 Figure 9. Typical performance characteristics High level transmitter output short circuit current vs temperature Figure 11. High level receiver output short circuit current vs temperature Figure 10. Low level transmitter output short circuit current vs temperature Figure 12. Low level receiver output short circuit current vs temperature 9/19 Package mechanical data 6 ST232 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. 10/19 ST232 Package mechanical data Plastic DIP-16 (0.25) MECHANICAL DATA mm. inch DIM. MIN. a1 0.51 B 0.77 TYP MAX. MIN. TYP. MAX. 0.020 1.65 0.030 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 17.78 0.700 F 7.1 0.280 I 5.1 0.201 L Z 3.3 0.130 1.27 0.050 P001C 11/19 Package mechanical data ST232 SO-16 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.25 b 0.35 b1 0.19 a2 0.068 0.004 0.010 0.46 0.013 0.018 0.25 0.007 0.010 1.64 C MAX. 0.063 0.5 0.019 c1 45° (typ.) D 9.8 10 0.385 0.393 E 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 8.89 0.350 F 3.8 4.0 0.149 0.157 G 4.6 5.3 0.181 0.208 L 0.5 1.27 0.019 0.050 M S 0.62 0.024 8° (max.) 0016020D 12/19 ST232 Package mechanical data SO-16L MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 2.65 0.1 0.104 0.2 a2 MAX. 0.004 0.008 2.45 0.096 b 0.35 0.49 0.014 0.019 b1 0.23 0.32 0.009 0.012 C 0.5 0.020 c1 45˚ (typ.) D 10.1 10.5 0.397 0.413 E 10.0 10.65 0.393 0.419 e 1.27 e3 F 0.050 8.89 0.350 7.4 7.6 0.291 0.300 0.5 1.27 0.020 0.050 G L M S 0.75 8 0.029 ˚ (max.) PO13I 13/19 Package mechanical data ST232 TSSOP16 MECHANICAL DATA mm. inch DIM. MIN. TYP A MAX. MIN. TYP. MAX. 1.2 A1 0.05 A2 0.8 b 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0079 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 1 e 0.65 BSC K 0˚ L 0.45 A 0.60 0.0256 BSC 8˚ 0˚ 0.75 0.018 8˚ 0.024 0.030 A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0080338D 14/19 ST232 Package mechanical data Tape & Reel SO-16 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 22.4 0.519 0.882 Ao 6.45 6.65 0.254 0.262 Bo 10.3 10.5 0.406 0.414 Ko 2.1 2.3 0.082 0.090 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 15/19 Package mechanical data ST232 Tape & Reel SO-16L MECHANICAL DATA mm. inch DIM. MIN. A MAX. MIN. 330 13.2 TYP. MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 16/19 TYP 0.504 22.4 0.519 0.882 Ao 10.8 11.0 0.425 0.433 Bo 10.7 10.9 0.421 0.429 Ko 2.9 3.1 0.114 0.122 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 ST232 Package mechanical data Tape & Reel TSSOP16 MECHANICAL DATA mm. inch DIM. MIN. A TYP MAX. MIN. 330 MAX. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 TYP. 0.504 22.4 0.519 0.882 Ao 6.7 6.9 0.264 0.272 Bo 5.3 5.5 0.209 0.217 Ko 1.6 1.8 0.063 0.071 Po 3.9 4.1 0.153 0.161 P 7.9 8.1 0.311 0.319 17/19 Revision history ST232 7 Revision history Table 7. Revision history Date Revision 02-Sep-2005 11 Mistake ITIL max. on table 5. 27-Oct-2006 12 Order codes has been updated and document reformatted. 18/19 Changes ST232 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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