ST232 5V POWERED MULTI-CHANNEL RS-232 DRIVERS AND RECEIVERS 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 85C, 0 TO 70C COMPATIBLE WITH MAX232 AND MAX202 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 (0.1F). Typical applications are in: Portable Computers, Low Power Modems, Interfaces Translation, Battery Powered RS-232 System, Multi-Drop RS-232 Networks. DIP SOP SOP Large TSSOP Table 1: Order Codes Type Temperature Range Package Comments ST232CN ST232BN ST232CD ST232BD ST232CDR ST232BDR ST232CW ST232BW ST232CWR ST232BWR ST232CT ST232BT 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 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 (Tube) TSSOP16 (Tube) 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 only for samples only for samples 2500 parts per reel 2500 parts per reel September 2005 Rev. 11 1/15 ST232 Figure 1: Pin Configuration Table 2: Pin Description PlN N SYMBOL 1 C1 + Positive Terminal for the first Charge Pump Capacitor 2 3 V+ C1- Doubled Voltage Terminal 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 7 VT2OUT 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 VCC 16 NAME AND FUNCTION Inverted Voltage Terminal Second Transmitter Output Voltage Second Receiver Input Voltage First Receiver Input Voltage First Transmitter Output Voltage Ground Supply Voltage Table 3: Absolute Maximum Ratings Symbol Parameter VCC Supply Voltage TIN Transmitter Input Voltage Range RIN Receiver Input Voltage Range TOUT Transmitter Output Voltage Range ROUT TSCTOUT Tstg Value Unit -0.3 to 6 V -0.3 to (VCC + 0.3) V 30 V (V+ + 0.3) to (V- - 0.3) V Receiver Output Voltage Range -0.3 to (VCC + 0.3) V Short Circuit Duration on TOUT Storage Temperature Range -65 to + 150 infinite C Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Note 1: No external supply can be applied to V+ terminal and V- terminal. 2/15 ST232 Table 4: Electrical Characteristics (C1 - C4 = 0.1F, VCC = 5V 10%, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Symbol Parameter ISUPPLY VCC Power Supply Current Test Conditions No Load, Min. Typ. Max. Unit 5 10 mA Min. Typ. Max. Unit 5 7.8 TA = 25C Table 5: Transmitter Electrical Characteristics (C1 - C4 = 0.1F, VCC = 5V 10%, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Symbol Parameter VTOUT Output Voltage Swing ITIL Input Leakage Current VTIL Input Logic Threshold Low VTIH Input Logic Threshold High SRT Transition Slew Rate DR Data Rate RTOUT ISC Transmitter Output Resistance Transmitter Output Short Circuit Current Test Conditions All Transmitter outputs are loaded with 3K to GND V 40 A 2 V 30 V/s 0.8 TA = 25C, RL = 3 to 7K, (Note1) (Note 2) VCC = 5V CL = 50 to 2500pF VCC = V+ = V- = 0V 2V One TXOUT to GND 7 120 VOUT = V 220 Kbits/s 300 10 60 mA Typ. Max. Unit 30 V 7 K Note 1: Measured from 3V to -3V or from -3V to 3V. Note2: One transmitter output is loaded with RL = 3K to 7K, CL = 50 to 1000pF Table 6: Receiver Electrical Characteristics (C1 - C4 = 0.1F, VCC = 5V 10%, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Symbol VRIN RRIN Parameter Receiver Input Voltage Operating Range RS-232 Input Resistance RS-232 Input Logic Threshold Low VRIH RS-232 Input Logic Threshold High VRIHYS RS-232 Input Hysteresis VROL TTL/CMOS Output Voltage Low VROH TTL/CMOS Output Voltage High tDR Receiver Propagation Delay VRIL ISCR Test Conditions Min. -30 TA = 25C, VCC = 5 V, VRIN = 5V TA = 25C, VCC = 5 V 3 5 0.8 1.2 TA = 25C, VCC = 5 V VCC = 5V 1.7 0.2 0.5 IOUT = 3.2mA (to VCC) IOUT = -1mA (to GND) CL = 150pF (Note 1) Receiver Output Short Circuit Current 3.5 V 2.4 1 V 0.4 V VCC-0.4 0.3 10 V V 1 s mA Note 1: RS-232 IN to TTL-CMOS OUT (from 50% to 50%) 3/15 ST232 Figure 2: Application Circuits (note 1, note 2) Note 1: C1-4 capacitors can even be 1F ones. Note 2: C1-4 can be common or biased capacitors. Table 7: Capacitance Value (F) 4/15 C1 C2. C3 C4 C5 0.1 0.1 0.1 0.1 0.1 ST232 TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified Tj = 25C) Figure 3: Supply Current vs Temperature Figure 6: Driver Propagation Delay Figure 4: Data Rate vs Temperature Figure 7: High Level Output Voltage Swing vs Temperature Figure 5: Receiver Propagation Delay Figure 8: Low Level Output Voltage Swing vs Temperature 5/15 ST232 Figure 9: 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 Table 8: Low Level Receiver Output Short Circuit Current vs Temperature 6/15 ST232 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 7/15 ST232 SO-16 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.25 a2 MAX. 0.004 0.010 1.64 0.063 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 C 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 M S 0.62 0.050 0.024 8 (max.) 0016020D 8/15 ST232 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 0.050 e3 8.89 0.350 F 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 9/15 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 10/15 ST232 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 11/15 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 12/15 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 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 13/15 ST232 Table 9: Revision History Date Revision 02-Sep-2005 11 14/15 Description of Changes Mistake ITIL max. on table 5. ST232 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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