ST3232 3 TO 5.5V, LOW POWER, UP TO 400KBPS, RS-232 DRIVERS AND RECEIVERS ■ ■ ■ ■ ■ 300µA SUPPLY CURRENT 300Kbps MINIMUM GUARENTEED DATA RATE 6V/µs MINIMUM GUARANTEED SLEW RATE MEET EIA/TIA-232 SPECIFICATIONS DOWN TO 3V AVAILABLE IN DIP-16, SO-16, SO-16 LARGE AND TSSOP16 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 0.1µF 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. DIP SOP SOP Large TSSOP ORDERING CODES Type Temperature Range Package Comments ST3232CN ST3232BN ST3232CD ST3232BD ST3232CDR ST3232BDR ST3232CW ST3232BW ST3232CWR ST3232BWR ST3232CTR ST3232BTR 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 49parts per tube / 25tube per box 49parts per tube / 25tube per box 1000 parts per reel 1000 parts per reel 2500 parts per reel 2500 parts per reel May 2002 1/11 ST3232 PIN CONFIGURATION 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 ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply Voltage Value Unit -0.3 to 6 V V+ Doubled Voltage Terminal (VCC - 0.3) to 7 V VV+ +|V-| TIN Inverted Voltage Terminal 0.3 to -7 13 V V Transmitter Input Voltage Range -0.3 to 6 V RIN Receiver Input Voltage Range TOUT Transmitter Output Voltage Range ROUT Receiver Output Voltage Range tSHORT Transmitter Output Short to GND Time ± 25 V ± 13.2 V -0.3 to (VCC + 0.3) V Continuous Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional 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 ST3232 ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1µF, V CC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol Parameter ISUPPLY VCC Power Supply Current Test Conditions Min. Typ. Max. Unit No Load VCC = 3V ±10% TA = 25°C 0.3 1 mA No Load VCC = 5V ±10% TA = 25°C 1 2 mA Typ. Max. Unit LOGIC INPUT ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1µF, V CC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol Parameter Test Conditions VTIL Input Logic Threshold Low T-IN (Note 1) VTIH Input Logic Threshold High VCC = 3.3V VCC = 5V Input Leakage Current T-IN IIL Min. 0.8 2 2.4 V V V ± 0.01 ±1 µA Max. Unit Note 1: Transmitter input hysteresis is typically 250mV TRANSMITTER ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1µF tested at V CC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol Parameter VTOUT Output Voltage Swing RTOUT Transmitter Output Resistance Output Short Circuit Current ITSC Test Conditions All Transmitter outputs are loaded with 3KΩ to GND VCC = V+ = V- = 0V VOUT = ± 2V VCC = 3V to 5V Min. Typ. ±5 ± 5.4 V 300 10M Ω VOUT = ± 12V ± 60 mA Max. Unit 25 V RECEIVER ELECTRICAL CHARACTERISTICS (C1 - C4 = 0.1µF tested at V CC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol VRIN VRIL VRIH Parameter Test Conditions Receiver Input Voltage Operating Range RS-232 Input Threshold Low TA = 25°C TA = 25°C VCC = 3.3V VCC = 5V RS-232 Input Threshold High TA = 25°C TA = 25°C VCC = 3.3V VCC = 5V Min. -25 0.6 0.8 1.2 1.5 1.5 1.8 VRIHYS Input Hysteresis V V 2.4 2.4 0.3 RRIN Input Resistance TA = 25°C VROL TTL/CMOS Output Voltage Low TTL/CMOS Output Voltage High IOUT = 1.6mA VROH Typ. IOUT = -1mA 3 5 VCC-0.6 VCC-0.1 V V V 7 KΩ 0.4 V V 3/11 ST3232 TIMING CHARACTERISTICS (C1 - C4 = 0.1µF, V CC = 3V to 5.5V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred to TA = 25°C) Symbol DR Parameter Data Transfer Rate tPHLR tPLHR Propagation Delay Input to Output |tPHLT - tTHL| Transmitter Propagation Delay Difference |tPHLR - tTHR| Receiver Propagation Delay Difference SRT Trnasition Slew Rate Test Conditions RL = 3KΩ CL2= 1000pF one trasmitter switching RXIN = RXOUT CL = 150pF Min. Typ. 300 400 Kbps 0.2 µs 100 ns 50 ns (Note 1) TA = 25°C RL = 3KΩ to 7KΩ VCC = 3.3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF CL = 150pF to 2500pF 6 4 Max. 30 30 Unit V/µs V/µs Transmitter Skew is measured at the transmitter zero cross points APPLICATION CIRCUITS CAPACITANCE VALUE (µF) 4/11 VCC C1 C2 C3 C4 Cbypass 3.0 to 3.6 4.5 to 5.5 0.1 0.047 0.1 0.33 0.1 0.33 0.1 0.33 0.1 0.33 ST3232 TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified Tj = 25°C) Figure 1 : Driver Voltage Transfer Characteristics for Trasmitter Inputs Figure 4 : Output Current vs Output Low Voltage Figure 2 : Driver Voltage Transfer Characteristics for Receiver Inputs Figure 5 : Output Current vs Output High Voltage Figure 3 : Output Current vs Output Low Voltage Figure 6 : Output Current vs Output High Voltage 5/11 ST3232 Figure 7 : Receiver Input Resistance 6/11 ST3232 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 7/11 ST3232 SO-16 MECHANICAL DATA DIM. mm. MIN. TYP A a1 inch MAX. MIN. TYP. 1.75 0.1 0.068 0.2 a2 MAX. 0.003 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 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.) PO13H 8/11 ST3232 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 0.029 8° (max.) PO13I 9/11 ST3232 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 0.0089 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 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 10/11 ST3232 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. 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 11/11