ST232A VERY HIGH SPEED, ULTRA LOW POWER CONSUMPTION 5V POWERED RS-232 DRIVERS AND RECEIVERS ■ ■ ■ ■ ■ ■ ■ ■ SUPPLY VOLTAGE RANGE: 4.5 TO 5.5V SUPPLY CURRENT NO LOAD (TYP): 1.5mA TRANSMITTER OUTPUT VOLTAGESWING (TYP): ±9V TRANSITION SLEW RATE (TYP.):12V/µs RECEIVER PROPAGATIONDELAY (TYP.): 0.1µs RECEIVER INPUT VOLTAGE RANGE: ±30V DATA RATE (TYP): 400Kbp/s OPERATING TEMPERATURE RANGE: -40 TO 85 oC, 0 TO 70 oC DESCRIPTION The ST232A 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 (0.1µF). Typical applications are in: Portable Computers, Low Power Modems, Interfaces Translation, Battery Powered RS-232 System, Multi-Drop RS-232 Networks. N (Plastic Package) D (Micro Package) W (Micro Package Large) T (TSSOP Package) ORDER CODES Type T emperature Ran ge ST232ACN 0 to 70 oC DIP-16 25 parts per tube / 40 tube per box ST232ABN -40 to 85 oC DIP-16 25 parts per tube / 40 tube per box ST232ACD 0 to 70 oC SO-16 (Tube) 50 parts per tube / 20 tube per box o Packag e Comments ST232ABD -40 to 85 C SO-16 (Tube) 50 parts per tube / 20 tube per box ST232ACDR 0 to 70 oC SO-16 (Tape & Reel) 2500 parts per reel ST232ABDR -40 to 85 oC SO-16 (Tape & Reel) 2500 parts per reel ST232ACW 0 to 70 oC SO-16 Large (Tube) 50 parts per tube / 20 tube per box ST232ABW -40 to 85 oC SO-16 Large (Tube) 50 parts per tube / 20 tube per box ST232ACWR 0 to 70 oC SO-16 Large (Tape & Reel) 1000 parts per reel ST232ABWR -40 to 85 oC SO-16 Large (Tape & Reel) 1000 parts per reel o ST232ACTR 0 to 70 C TSSOP16 (Tape & Reel) 2500 parts per reel ST232ABTR -40 to 85 oC TSSOP16 (Tape & Reel) 2500 parts per reel October 1999 1/10 ST232A PIN CONFIGURATION PIN DESCRIPTION PIN No SYMBOL 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- 7 T2OUT NAME AND F UNCTION Inverted Voltage Terminal Second Transmitter Output Voltage Second Receiver Input Voltage 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 First Receiver Input Voltage 13 R1IN 14 T1OUT 15 GND Ground 16 VCC Supply Voltage First Transmitter Output Voltage ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value Unit -0.3 to 6 V V+ Extra Positive Voltage (VCC -0.3) to 13.2 V V- Extra Negative Voltage 0.3 to -13.2 V TIN Transmitter Input Voltage Range RIN Receiver Input Voltage Range TOUT Transmitter Output Voltage Range R OUT Receiver Output Voltage Range TSCTOUT Short Circuit Duration on TOUT -0.3 to (VCC + 0.3) V ±30 V ±15 V -0.3 to (VCC + 0.3) V infinite Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. 2/10 ST232A ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1µF, VCC = 5V ± 10% TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA = 25 oC) Symb ol Parameter Test Co nditions Value Min. ISUPPLY VCC Power Supply Current No Load Un it T yp. Max. 1.5 4 mA TRANSMITTER ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1µF, VCC = 5V ± 10%, TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA = 25 oC) Symb ol Parameter Test Co nditions VTOUT Output Voltage Swing All Transmitter outputs are loaded with 3KΩ to GND TIN = 0 V Value Min. T yp. ±5 ±9 0.8 1.4 V Logic Pull-Up Current Input Logic Threshold Low VTIH Input Logic Threshold High SRT Transition Slew Rate TA = 25 oC, VCC = 5 V, R L = 3 to 7 KΩ, C L= 50 to 2500 pF (Note 1) DR Data Rate (Note 2) 200 400 Kbits/s Transmitter Output Resistance VCC = V+ = V- = 0V VOUT = ± 2 V 300 10M Ω ISC Transmitter Output Short Circuit Current one TXOUT to GND ±7 ±22 mA tdT Propagation Delay Time TTL-CMOS IN to RS-232 OUT C L= 150 pF (50% to 50%) 6 40 µA ITIL VTIL R TOUT 5 Un it Max. V 1.4 2 V 12 30 V/µs 1.3 3.5 µs Note 1: Measured from 3V to -3Vor from -3V to 3V. Note 2: One trasmitter output is loaded with R L = 3KΩ to7KΩ, CL = 50 to 1000pF RECEIVER ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1µF, VCC = 5V ± 10%, TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA = 25 oC) Symb ol Parameter Test Co nditions Value Min. VRIN Receiver Input Voltage Operating Range R RIN RS-232 Input Resistance VRIL RS-232 Input Logic Threshold Low VRIH RS-232 Input Logic Threshold High T yp. -30 TA = 25 oC, 3 0.8 5 Max. 30 V 7 KΩ 2.4 V 1.3 1.8 V RS-232 Input Hysteresis VCC = 5 V VROL TTL/CMOS Output Voltage Low IOUT = 3.2mA (to VCC) VROH TTL/CMOS Output Voltage High IOUT = 1mA (to GND) 3.5 VCC-0.2 V ISCR Receiver Output Short Circuit Current to GND to VCC 2 10 10 30 mA mA Propagation Delay Time C L=150pF (Note 1) VRIHYS tdR 0.2 Un it 0.5 1 V 0.2 0.4 V 0.1 0.5 µs Note 1: RS-232 IN to TTL-CMOS OUT (from 50% to 50%) 3/10 ST232A APPLICATION CIRCUITS (note 1, note 2) +5V INPUT C3 + C5 1 + + C1 3 C14 C2+ + C2 5 16 Vcc C1+ C2- +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER 2 V+ V- 6 C4 +10V -10V + +5V 400K 11 T1IN T1 T1OUT 14 +5V TTL / CMOS INPUTS RS 232 OUTPUTS 400K 10 T2IN 12 R1OUT T2 R1 T2OUT 7 R1IN 13 5K TTL / CMOS OUTPUTS 9 R2OUT R2 RS 232 INPUTS R2 IN 8 5K GND 15 Note 1: C1-4 capacitors can even be 1 µF ones. Note 2: C1-4 canbe common or biased capacitors. Capacitance Value (µF) 4/10 C1 C2 C3 C4 C5 0.1 0.1 0.1 0.1 0.1 ST232A Driver Voltage Transfer Characteristics Driver Output Current vs Output Voltage Driver Short Circuit Output Current vs Temperature Driver Short Circuit Supply Current vs Temperature Receiver Threshold vs Supply Voltage Receiver Threshold vs Temperature 5/10 ST232A Plastic DIP-16 (0.25) MECHANICAL DATA mm DIM. MIN. a1 0.51 B 0.77 TYP. inch 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 6/10 ST232A SO-16 MECHANICAL DATA mm DIM. MIN. TYP. A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.004 0.007 1.65 0.064 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 e3 0.050 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.) P013H 7/10 ST232A SO16L MECHANICAL DATA mm DIM. 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 0.3.93 0.419 e 1.27 0.050 e3 8.89 0.350 F 7.4 7.6 0.291 0.300 L 0.5 1.27 0.020 0.050 M S 0.75 0.029 8 (max.) P013I 8/10 ST232A TSSOP16 MECHANICAL DATA mm DIM. MIN. inch TYP. A MAX. MIN. TYP. MAX. 1.1 0.433 A1 0.05 0.10 0.15 0.002 0.004 0.006 A2 0.85 0.9 0.95 0.335 0.354 0.374 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 D 4.9 5 5.1 0.193 0.197 0.201 E 6.25 6.4 6.5 0.246 0.252 0.256 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 BSC 0.0256 BSC K 0o 4o 8o 0o 4o 8o L 0.50 0.60 0.70 0.020 0.024 0.028 A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 9/10 ST232A Information furnished is believed to be accurate and reliable. However, STMicroelectronic s 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. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems withoutexpress written approval of STMicroelectronics. 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