ST ST3232 3 TO 5.5V LOW POWER UP TO 400KBPS RS-232 DRIVERS AND RECEIVERS handbook
Contents
1. 1 25 1 5 1 75 2 2 25 M V Figure 3 Output Current vs Output Low Voltage CS01850 lo mA 25 zm gt N Figure 4 Output Current vs Output Low Voltage 501860 lo mA 7 6 5 0 2 3 4 5 Figure 5 Output Current vs Output High Voltage CS01830 2 9 5 0 7 5 10 0 12 5 15 0 WS 6 39 4 3 222 1 Figure 6 Output Current vs Output High Voltage CS01840 3 25 2 5 1 0 5Vec Vou V 5 11 573232 Figure 7 Receiver Input Resistance 501870 Vo mV 4 2 0 2 Vec 5V Ta 25 C 4 6 11 ST3232 Plastic DIP 16 0 25 MECHANICAL DATA mm inch DIM MIN TYP MIN TYP MAX a1 0 51 0 020 B 0 77 1 65 0 030 0 065 b 0 5 0 020 E 8 5 0 335 e 2 54 0 100 e3 17 78 0 700 F 7 1 0 280 Z 1 27 0 050 P001C 7 11 ST3232 SO 16 MECHANICAL DATA 8 11 m2. Symbol Parameter Test Conditions Min Typ Max Unit Dn Data Transfer Rate gt 1000pF 300 400 Kbps one trasmitter switching Propagation Delay Inputto Ryx n Rxour C 150pF 0 2 us Output Transmitter Propagation Note 1 100 ns Delay Difference ltpy_R Receiver Propagation Delay 50 ns 1 Difference Spr Trnasition Slew Rate Ta 25 to 7KQ Vec 3 3V measured from to 3V or 3V to C 150pF to 1000pF C 150pF to 2500pF Transmitter Skew is measured at the transmitter zero cross points 30 Vius 30 Vas RO APPLICATION CIRCUITS 3 5 INPUT Cbypass TTL CMOS INPUTS RS232 OUTPUTS TTL CMOS OUTPUTS INPUTS CAPACITANCE VALUE uF Voc C1 C2 C4 Cbypass 3 0 to 3 6 0 1 0 1 0 1 0 1 0 1 4 5 to 5 5 0 047 0 33 0 33 0 33 0 33 4 11 ky 573232 TYPICAL PERFORMANCE CHARACTERISTICS unless otherwise specified Tj 25 C Figure 1 Driver Voltage Transfer Characteristics for Trasmitter Inputs Vo V 501880 5 0 2 5 075 1 125 15 1 75 2 Figure 2 Driver Voltage Transfer Characteristics for Receiver Inputs Vo V 501890
3. 2500 parts per reel ST3232CW 0 to 70 C SO 16 Large Tube 49parts per tube 25tube per box ST3232BW 40 to 85 C SO 16 Large Tube 49parts per tube 25tube per box ST3232CWR 0 to 70 C SO 16 Large Tape amp Reel 1000 parts per reel ST3232BWR 40 to 85 C SO 16 Large Tape amp Reel 1000 parts per reel ST3232CTR 0 to 70 C TSSOP16 Tape amp Reel 2500 parts per reel ST3232BTR 40 to 85 TSSOP16 Tape amp Reel 2500 parts per reel May 2002 1 11 573232 PIN CONFIGURATION PIN DESCRIPTION 12190 2 SYMBOL NAME AND FUNCTION 1 Positive Terminal for the first Charge Pump Capacitor 2 V Doubled Voltage Terminal 3 C4 Negative Terminal for the first Charge Pump Capacitor 4 Cot Positive Terminal for the second Charge Pump Capacitor 5 Co Negative Terminal for the second Charge Pump Capacitor 6 V Inverted Voltage Terminal 7 T2ouT Second Transmitter Output Voltage 8 R2in Second Receiver Input Voltage 9 R2out Second Receiver Output Voltage 10 2 Second Transmitter Input Voltage 11 T N First Transmitter Input Voltage 12 Riour First Receiver Output Voltage 13 Riv First Receiver Input Voltage 14 Tiour First Transmitter Output Voltage 15 GND Ground 16 Voc Supply Voltage ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Voc Supply Voltage 0 3 to 6 V V Doubled V
4. IN 0 01 1 Note 1 Transmitter input hysteresis is typically 250mV TRANSMITTER ELECTRICAL CHARACTERISTICS C4 C4 O 1uF tested at Vec 5 5V T4 40 to 85 C unless otherwise specified Typical values are referred to T4 25 C Symbol Parameter Test Conditions Min Typ Max Unit Vrour Output Voltage Swing All Transmitter outputs are loaded with t5 5 4 V 3KQ to GND Transmitter Output Voc V V OV Vout 2V 300 10M Q Resistance Itsc Output Short Circuit Voc 3V to 5V Vout 12V 60 mA Current RECEIVER ELECTRICAL CHARACTERISTICS C4 C4 0 1 tested at Voc to 5 5V T4 40 to 85 C unless otherwise specified Typical values are referred to 25 C Symbol Parameter Test Conditions Min Typ Max Unit Receiver Input Voltage 25 25 V Operating Range RS 232 Input Threshold 2595 Vec 3 3V 0 6 1 2 V Low 259 5 0 8 1 5 V Vain RS 232 Input Threshold 25 Voc 3 3V 1 5 24 V High 25 5V 1 8 2 4 V Input Hysteresis 0 3 V Rmw Input Resistance 25 C 3 5 7 TTL CMOS Output Voltage lour 1 6mA 0 4 V Low TTL CMOS Output Voltage 1mA 0 6 Voc 0 1 V High 3 11 573232 TIMING CHARACTERISTICS C4 C4 0 1uF Voc 3V to 5 5V T4 40 to 85 C unless otherwise specified Typical values are referred to T4 25 C
5. 38157323 hy i STA ST3232 3 TO 5 5V LOW POWER UP TO 400KBPS RS 232 DRIVERS AND RECEIVERS 300A SUPPLY CURRENT 300Kbps MINIMUM GUARENTEED DATA RATE m 6V us MINIMUM GUARANTEED SLEW RATE MEET EIA TIA 232 SPECIFICATIONS DOWN TO 3V AVAILABLE IN DIP 16 SO 16 SO 16 LARGE AND TSSOP 16 DESCRIPTION The ST3232 is a 3V powered EIA TIA 232 and V 28 V 24 communication interface with low power requirements high data rate capabilities ST3232 has a proprietary low dropout transmitter output stage providing true RS 232 performance from 3 to 5 5V supplies The device requires only four small 0 1uF standard external capacitors for operations from 3V supply The ST3232 has two receivers and two drivers The device is guaranteed to run at data rates of 250Kbps while maintaining RS 232 output levels Typical applications are Notebook Subnotebook and Palmtop Computers Battery Powered Equipment Hand Held Equipment Peripherals and Printers SOP Large ORDERING CODES Type ST3232CN 0 to 70 DIP 16 25parts per tube 40tube per box ST3232BN 40 to 85 C DIP 16 25parts per tube 40tube per box ST3232CD 0 to 70 C SO 16 Tube 50parts per tube 20tube per box ST3232BD 40 to 85 C SO 16 Tube 50parts per tube 20tube per box ST3232CDR 0 to 70 C SO 16 Tape amp Reel 2500 parts per reel ST3232BDR 40 to 85 C SO 16 Tape amp Reel
6. ject 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 without express written approval of STMicroelectronics The ST logo is a registered trademark of STMicroelectronics 2002 STMicroelectronics Printed in Italy All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia Brazil Canada China Finland France Germany Hong Kong India Israel Italy Japan Malaysia Malta Morocco Singapore Spain Sweden Switzerland United Kingdom United States http www st com ky 11 11
7. m inch x TYP MAX MIN TYP MAX a2 1 65 0 064 C 0 5 0 019 c1 45 typ D 9 8 10 0 385 0 393 5 8 6 2 0 228 0 244 e 1 27 0 050 G 4 6 5 3 0 181 0 208 M 0 62 0 024 5 8 max L G M cl jJ 5 E PO13H ST3232 SO 16L MECHANICAL DATA mm inch x TYP MAX MIN TYP MAX A 2 65 0 104 a2 2 45 0 096 C 0 5 0 020 c1 45 typ 10 1 10 5 0 397 0 413 10 0 10 65 0 393 0 419 e 1 27 0 050 G M 0 75 0 029 S 8 max 9 11 573232 TSSOP16 MECHANICAL DATA mm inch DIM MIN TYP MAX MIN TYP MAX A 1 2 0 047 1 0 05 0 15 0 002 0 004 0 006 2 1 05 0 031 0 039 0 041 b 0 19 umm 0 30 0 007 0 012 0 20 0 004 0 0089 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 e 0 65 BSC 0 0256 BSC K 09 89 09 89 L 0 45 0 60 0 75 0 018 0 024 0 030 SARA D 10 11 i PIN 1 IDENTIFICATION 1 00803380 573232 Information furnished is believed to be accurate and reliable However STMicroelectronics assumes 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 sub
8. oltage Terminal Vcc 0 3 to 7 V V Inverted Voltage Terminal 0 3 to 7 V V 13 Transmitter Input Voltage Range 0 3 to 6 V RiN Receiver Input Voltage Range t25 V Tour Transmitter Output Voltage Range t13 2 V Rour Receiver Output Voltage Range 0 3 to Voc 0 3 V Transmitter Output Short to GND Time Continuous Absolute Maximum Ratings are those values beyond which damage to the device may occur Functionat operation under these condition is not implied V and V can have a maximum magnitude of 7V but their absolute addition can not exceed 13 V 2 11 Gr ELECTRICAL CHARACTERISTICS C4 C4 0 1uF Voc 3V to 5 5V T4 40 to 85 C unless otherwise specified Typical values are referred to T4 25 C 573232 Symbol Parameter Test Conditions Min Typ Max Unit Isuppty Vcc Power Supply Current No Load Voc 410 25 C 0 3 1 mA NoLoad 5 10 Ta 25 C 1 2 mA LOGIC INPUT ELECTRICAL CHARACTERISTICS C4 C4 0 1uF Voc 3V to 5 5V T4 40 to 85 C unless otherwise specified Typical values are referred to T4 25 C Symbol Parameter Test Conditions Min Typ Max Unit Input Logic Threshold Low T IN Note 1 0 8 V Input Logic Threshold High Voc 3 3V 2 V Voc 5V 2 4 V liL Input Leakage Current T
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ST ST3232 3 TO 5.5V LOW POWER UP TO 400KBPS RS 232 DRIVERS AND RECEIVERS handbook