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| (R) ST232A VERY HIGH SPEED, ULTRA LOW POWER CONSUMPTION 5V POWERED RS-232 DRIVERS AND RECEIVERS s s s s s s s s 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/s RECEIVER PROPAGATIONDELAY (TYP.): 0.1s RECEIVER INPUT VOLTAGE RANGE: 30V DATA RATE (TYP): 400Kbp/s OPERATING TEMPERATURE RANGE: -40 TO 85 oC, 0 TO 70 oC N (Plastic Package) D (Micro Package) 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 (0.1F). Typical applications are in: Portable Computers, Low Power Modems, Interfaces Translation, Battery Powered RS-232 System, Multi-Drop RS-232 Networks. W (Micro Package Large) T (TSSOP Package) ORDER CODES Type ST232ACN ST232ABN ST232ACD ST232ABD ST232ACDR ST232ABDR ST232ACW ST232ABW ST232ACWR ST232ABWR ST232ACTR ST232ABTR T emperature Ran ge 0 to 70 oC -40 to 85 oC 0 to 70 oC -40 to 85 C 0 to 70 oC -40 to 85 oC 0 to 70 oC -40 to 85 oC 0 to 70 oC -40 to 85 oC 0 to 70 C -40 to 85 oC o o Packag e 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) Comments 25 parts per tube / 40 tube per box 25 parts per tube / 40 tube per box 50 parts per tube / 20 tube per box 50 parts per tube / 20 tube per box 2500 parts per reel 2500 parts per reel 50 parts per tube / 20 tube per box 50 parts per tube / 20 tube per box 1000 parts per reel 1000 parts per reel 2500 parts per reel 2500 parts per reel October 1999 1/10 ST232A PIN CONFIGURATION PIN DESCRIPTION PIN No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SYMBOL C1+ V+ C1C2+ C2VT2OUT R2IN R2OUT T2IN T1IN R1OUT R1IN T1OUT GND VCC NAME AND F UNCTION Positive Terminal for the first Charge Pump Capacitor Doubled Voltage Terminal Negative Terminal for the first Charge Pump Capacitor Positive Terminal for the second Charge Pump Capacitor Negative Terminal for the second Charge Pump Capacitor Inverted Voltage Terminal Second Transmitter Output Voltage Second Receiver Input Voltage Second Receiver Output Voltage Second Transmitter Input Voltage First Transmitter Input Voltage First Receiver Output Voltage First Receiver Input Voltage First Transmitter Output Voltage Ground Supply Voltage ABSOLUTE MAXIMUM RATINGS Symbol VCC V+ VTIN RIN TOUT R OUT TSCTOUT Supply Voltage Extra Positive Voltage Extra Negative Voltage Transmitter Input Voltage Range Receiver Input Voltage Range Transmitter Output Voltage Range Receiver Output Voltage Range Short Circuit Duration on TOUT Parameter Value -0.3 to 6 (VCC -0.3) to 13.2 0.3 to -13.2 -0.3 to (VCC + 0.3) 30 15 -0.3 to (VCC + 0.3) infinite Unit V V V V V V V 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 = 0.1F, 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 Min. ISUPPLY VCC Power Supply Current No Load Value T yp. 1.5 Max. 4 mA Un it TRANSMITTER ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1F, VCC = 5V 10%, TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA = 25 oC) Symb ol VTOUT ITIL VTIL VTIH SRT Parameter Output Voltage Swing Logic Pull-Up Current Input Logic Threshold Low Input Logic Threshold High Transition Slew Rate TA = 25 oC, VCC = 5 V, R L = 3 to 7 K, C L= 50 to 2500 pF (Note 1) (Note 2) VCC = V+ = V- = 0V VOUT = 2 V one TXOUT to GND TTL-CMOS IN to RS-232 OUT C L= 150 pF (50% to 50%) 6 Test Co nditions Min. All Transmitter outputs are loaded with 3K to GND TIN = 0 V 0.8 5 Value T yp. 9 5 1.4 1.4 12 2 30 40 Max. V A V V V/s Un it DR R TOUT ISC tdT Data Rate Transmitter Output Resistance Transmitter Output Short Circuit Current Propagation Delay Time 200 300 7 400 10M 22 1.3 3.5 Kbits/s mA s Note 1: Measured from 3V to -3Vor from -3V to 3V. Note 2: One trasmitter output is loaded with R L = 3K to7K, CL = 50 to 1000pF RECEIVER ELECTRICAL CHARACTERISTICS (C1 -C4 = 0.1F, VCC = 5V 10%, TA = -40 to 85 oC, unless otherwise specified. Typical Valus are referred to TA = 25 oC) Symb ol VRIN R RIN VRIL VRIH VRIHYS VROL VROH ISCR tdR Parameter Receiver Input Voltage Operating Range RS-232 Input Resistance RS-232 Input Logic Threshold Low RS-232 Input Logic Threshold High RS-232 Input Hysteresis TTL/CMOS Output Voltage Low TTL/CMOS Output Voltage High Receiver Output Short Circuit Current Propagation Delay Time VCC = 5 V IOUT = 3.2mA (to VCC) IOUT = 1mA (to GND) to GND to VCC C L=150pF (Note 1) 3.5 2 10 0.2 TA = 25 oC, Test Co nditions Min. -30 3 0.8 5 1.3 1.8 0.5 0.2 VCC-0.2 10 30 0.1 0.5 2.4 1 0.4 Value T yp. Max. 30 7 V K V V V V V mA mA s Un it 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 + C14 C2+ C2 + 5 C23 + 16 Vcc +5V TO +10V VOLTAGE DOUBLER +10V TO -10V VOLTAGE INVERTER +5V 400K 11 T1IN +5V T1 400K 10 T2IN T2 T2OUT 7 T1OUT 14 C1+ 2 V+ +10V V- 6 C4 -10V + TTL / CMOS INPUTS RS 232 OUTPUTS 12 R1OUT R1 R1IN 13 5K TTL / CMOS OUTPUTS 9 R2OUT R2 RS 232 INPUTS R2IN 8 5K GND 15 Note 1: C1-4 capacitors can even be 1 F ones. Note 2: C1-4 canbe common or biased capacitors. Capacitance Value (F) C1 0.1 C2 0.1 C3 0.1 C4 0.1 C5 0.1 4/10 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 MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.27 8.5 2.54 17.78 7.1 5.1 0.130 0.050 0.51 0.77 0.5 0.25 20 0.335 0.100 0.700 0.280 0.201 1.65 TYP. MAX. MIN. 0.020 0.030 0.020 0.010 0.787 0.065 inch TYP. MAX. DIM. P001C 6/10 ST232A SO-16 MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F G L M S 3.8 4.6 0.5 9.8 5.8 1.27 8.89 4.0 5.3 1.27 0.62 8 (max.) 0.149 0.181 0.019 10 6.2 0.35 0.19 0.5 45 (typ.) 0.385 0.228 0.050 0.350 0.157 0.208 0.050 0.024 0.393 0.244 0.1 mm TYP. MAX. 1.75 0.2 1.65 0.46 0.25 0.013 0.007 0.019 0.004 MIN. inch TYP. MAX. 0.068 0.007 0.064 0.018 0.010 P013H 7/10 ST232A SO16L MECHANICAL DATA DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.4 0.5 10.1 10.0 1.27 8.89 7.6 1.27 0.75 8 (max.) 0.291 0.020 10.5 10.65 0.35 0.23 0.5 45 (typ.) 0.397 0.3.93 0.050 0.350 0.300 0.050 0.029 0.413 0.419 0.1 mm TYP. MAX. 2.65 0.2 2.45 0.49 0.32 0.014 0.009 0.020 0.004 MIN. inch TYP. MAX. 0.104 0.008 0.096 0.019 0.012 P013I 8/10 ST232A TSSOP16 MECHANICAL DATA mm MIN. A A1 A2 b c D E E1 e K L 0o 0.50 0.05 0.85 0.19 0.09 4.9 6.25 4.3 5 6.4 4.4 0.65 BSC 4o 0.60 8o 0.70 0o 0.020 0.10 0.9 TYP. MAX. 1.1 0.15 0.95 0.30 0.20 5.1 6.5 4.48 0.002 0.335 0.0075 0.0035 0.193 0.246 0.169 0.197 0.252 0.173 0.0256 BSC 4o 0.024 8o 0.028 0.004 0.354 MIN. inch TYP. MAX. 0.433 0.006 0.374 0.0118 0.0079 0.201 0.256 0.176 DIM. 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. The ST logo is a registered trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com . 10/10 |
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