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| ST3222E 15KV ESD-protected, 3 to 5.5V Low power, up to 250KBps, RS-232 drivers and receivers General features I ESD protection for RS-232 I/O pins 15KV human body model, 8KV IEC 1000-4-2 contact discharge 300A supply current 250KBps minimum guarantee data rate 6V/s minimum guarantee slew rate Meet EIA/TIA-232 specification down to 3V Available in SO-18, SSOP20 and TSSOP20 TSSOP SOP SSOP I I I I I Description The ST3222E is a 3V powered EIA/TIA-232 and V.28/V.24 communications interface with low power requirements, high data-rate capabilities and enhanced electrostatic discharge (ESD) protection to 8kV using IEC1000-4-2 Contact Discharge and 15kV using the Human Body Model. ST3222E has a proprietary low dropout transmitter output stage providing true RS-232 performance from 3 to 5V supplies with a dual charge pump. The charge pump requires only four small 0.1mF external capacitors for operation form 3V supply. The device has two receivers and two drivers. The ST3222E features a 1mA shutdown mode that reduces power consumption and extends battery life in portable systems. Its receivers can remain active in shutdown mode, allowing external devices such as modems to be monitored using only 1mA supply current. The device is guaranteed to run at data rates of 250Kbps while maintaining RS-232 output levels. Typical applications are Notebook, Sub-notebook and Palmtop Computers, Battery Powered Equipment, Hand-Held Equipment, Peripherals and Printers. Order code Part number ST3222ECDR ST3222ECPR ST3222EBPR ST3222ECTR ST3222EBTR Temperature range 0 to 70 C 0 to 70 C -40 to 85 C 0 to 70 C -40 to 85 C Package SO-18 (Tape & Reel) SSOP20 (Tape & Reel) SSOP20 (Tape & Reel) TSSOP20 (Tape & Reel) TSSOP20 (Tape & Reel) Comments 1000 parts per reel 1350 parts per reel 1350 parts per reel 2500 parts per reel 2500 parts per reel March 2006 Rev 6 1/ www.st.com 18 Contents ST3222E Contents 1 2 3 4 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4.1 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 5 6 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2/18 ST3222E Pin configuration 1 Figure 1. Pin configuration Pin connection SO-18 SSOP20/TSSOP20 Table 1. Pin n SO-18 1 2 3 4 5 6 7 8 9 10 Pin description Pin n SSOP/TSSOP20 1 2 3 4 5 6 7 8 9 10 11 Symbol EN C 1+ V+ C1C 2+ C2VT2OUT R2IN R2OUT NC T2IN T1IN NC R1OUT R1IN T1OUT Name and function Receiver enable control. drive low for normal operation. Drive high to force the receivers outputs (R_OUT) into a high-impedance state. Positive terminal for the first charge pump capacitor 5.5V Generated by the charge pump. Negative terminal for the first charge pump capacitor Positive terminal for the second charge pump capacitor Negative terminal for the second charge pump capacitor -5.5V Generated by the charge pump. Second transmitter output voltage Second receiver input voltage Second receiver output voltage Not connected Second transmitter input voltage First transmitter input voltage Not connected First receiver output voltage First receiver input voltage First transmitter output voltage 11 12 12 13 14 13 14 15 15 16 17 3/18 Pin configuration Table 1. Pin n SO-18 16 17 18 ST3222E Pin description Pin n SSOP/TSSOP20 18 19 20 Symbol GND VCC SHDN Ground Supply voltage Active low shutdown control input. drive low to shut-down transmitter and charge pump Name and function 4/18 ST3222E Absolute maximum ratings 2 Table 2. Symbol VCC V+ VV+ +|V-| TIN SHDN RIN TOUT ROUT tSHORT Absolute maximum ratings Absolute maximum ratings Parameter Supply voltage Doubled voltage terminal Inverted voltage terminal Value -0.3 to 6 (V CC - 0.3) to 7 0.3 to -7 13 Transmitter input voltage range Transmitter input voltage range Receiver input voltage range Transmitter output voltage range Receiver output voltage range Transmitter output short to GND time -0.3 to 6 -0.3 to 6 25 13.2 -0.3 to (VCC + 0.3) Continuous Unit V V V V V V V V V Note: 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. Shutdown and enable control truth table SHDN 0 0 1 1 EN 0 1 0 1 T-OUT High Z High Z Active Active R-OUT Active High Z Active High Z Table 3. Table 4. Symbol ESD ESD ESD performance: transmitter outputs, receiver inputs Parameter ESD protection voltage ESD protection voltage Test Conditions Human body model IEC-1000-4-2 Min. 15 8 Typ. Max. Unit kV kV 5/18 Electrical characteristics ST3222E 3 Table 5. Symbol ISUPPLY ISHDN Electrical characteristics Electrical characteristics (C1 - C4 = 0.1F, VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Parameter VCC power supply current No load Shutdown supply current No load Test conditions SHDN=VCCTA = 25C SHDN=VCCTA = 25C Min. Typ. 0.3 1 Max. 1 10 Unit mA A Table 6. Symbol VIL VIH VHYS IIL Logic input electrical characteristics (C1 - C4 = 0.1F, VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Parameter Input logic threshold low Input logic threshold high Transmitter input hysteresis Input leakage current T-IN, EN, SHDN Test conditions T-IN, EN, SHDN (Note 1) VCC = 3.3V VCC = 5V 2 V 2.4 0.25 0.01 1 V A Min. Typ. Max. 0.8 Unit V Note: Table 7. Symbol VTOUT RTOUT ITSC ITOL Note 1: Transmitter input hysteresis is typically 250mV Transmitter electrical characteristics (C 1 - C4 = 0.1F VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Parameter Output voltage swing Transmitter output resistance Output short circuit current Output leakage current VCC = 0V or 3V to 3.6V VOUT = 12V Transmitters disable Test Conditions All transmitter outputs are loaded with 3K to GND VCC = V+ = V- = 0VVOUT = 2V Min. 5 300 Typ. 5.4 10M 60 25 Max. Unit V mA A 6/18 ST3222E Electrical characteristics Table 8. Symbol IOL VRIN VRIL Receiver electrical characteristics (C1 - C4 = 0.1F VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Parameter Output leakage current Receiver input voltage operating range Input threshold low TA = 25CVCC = 3.3V TA = 25CVCC = 5V Input threshold high Input hysteresis Input resistance Output voltage low Output voltage high TA = 25C IOUT = 1.6mA IOUT = -1mA VCC -0.6 VCC0.1 3 TA = 25CVCC = 3.3V TA = 25CVCC = 5V Test Conditions R-OUT, EN = VCC , receiver disabled -25 0.6 0.8 1.2 V 1.5 1.5 1.8 0.5 5 7 0.4 2.4 V 2.4 V K V V Min. Typ. 0.05 Max. 10 25 Unit A V VRIH VRIHYS RRIN VROL VROH Table 9. Symbol DR tPHLR tPLHR |tPHLT - tTHL| tOER tODR |tPHLR - tTHR| Timing characteristics (C1 - C4 = 0.1F, VCC = 3V to 5.5V, TA = -40 to 85C, unless otherwise specified. Typical values are referred to TA = 25C) Parameter Data transfer rate Test conditions RL = 3KCL2= 1000pF one transmitter switching Min. 250 0.15 200 Normal operation Normal operation 50 50 50 TA = 25C RL = 3K to 7K VCC = 3.3V measured from +3V to -3V or -3V to +3V CL = 150pF to 1000pF CL = 150pF to 2500pF Typ. Max. Unit Kbps s ns ns ns ns Propagation delay input to RXIN to RXOUTCL = 150pF output Transmitter propagation delay difference (1) Receiver output enable time Receiver output disable time Receiver Propagation Delay Difference SRT Transition Slew Rate 6 4 30 30 V/s V/s 1. Transmitter Skew is measured at the transmitter zero cross points 7/18 Application circuits ST3222E 4 Figure 2. Application circuits Application schematic Table 10. VCC Capacitance value (F) C1 0.1 0.047 0.1 C2 0.1 0.33 0.47 C3 0.1 0.33 0.47 C4 0.1 0.33 0.47 Cbypass 0.1 0.1 0.1 3.0 to 3.6 4.5 to 5.5 3.0 to 5.5 8/18 ST3222E Application circuits 4.1 Typical performance characteristics (unless otherwise specified Tj = 25C) Figure 3. Output current vs output high voltage Figure 4. Output current vs output high voltage Figure 5. Output current vs output low voltage Figure 6. Output current vs output low voltage Figure 7. Voltage transfer characteristics for Figure 8. transmitter inputs Receiver Input Resistance 9/18 Package mechanical data ST3222E 5 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com 10/18 ST3222E Package mechanical data SO-18 MECHANICAL DATA mm. DIM. MIN. A A1 A2 B C D E e H h k L 0.4 10.00 0.25 8 1.27 0.33 0.23 11.35 7.4 1.27 10.65 0.75 (max.) 0.016 0.050 0.393 0.010 2.35 0.1 TYP MAX. 2.65 0.3 2.55 0.51 0.32 11.75 7.6 0.013 0.009 0.447 0.291 0.050 0.419 0.029 MIN. 0.092 0.004 TYP. MAX. 0.104 0.012 0.100 0.020 0.012 0.462 0.299 inch h x 45u A2 A B 0.10mm .004 Seating Plane e K L H A1 C D 18 10 1 9 SO18 E 0070768 11/18 Package mechanical data ST3222E SSOP20 MECHANICAL DATA mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.55 0.05 1.65 0.22 0.09 6.9 7.4 5 7.2 7.8 5.3 0.65 BSC 4 0.75 8 0.95 0 0.022 1.75 1.85 0.38 0.25 7.5 8.2 5.6 TYP MAX. 2 0.002 0.065 0.009 0.004 0.272 0.291 0.197 0.283 0.307 0.209 0.0256 BSC 4 0.030 8 0.037 0.069 0.073 0.015 0.010 0.295 0.323 0.220 MIN. TYP. MAX. 0.079 inch A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0061436C 12/18 ST3222E Package mechanical data TSSOP20 MECHANICAL DATA mm. DIM. MIN. A A1 A2 b c D E E1 e K L 0 0.45 0.60 0.05 0.8 0.19 0.09 6.4 6.2 4.3 6.5 6.4 4.4 0.65 BSC 8 0.75 0 0.018 0.024 1 TYP MAX. 1.2 0.15 1.05 0.30 0.20 6.6 6.6 4.48 0.002 0.031 0.007 0.004 0.252 0.244 0.169 0.256 0.252 0.173 0.0256 BSC 8 0.030 0.004 0.039 MIN. TYP. MAX. 0.047 0.006 0.041 0.012 0.0079 0.260 0.260 0.176 inch A A2 A1 b e K c L E D E1 PIN 1 IDENTIFICATION 1 0087225C 13/18 Package mechanical data ST3222E Tape & Reel SO-18 MECHANICAL DATA mm. DIM. MIN. A C D N T Ao Bo Ko Po P 10.8 11.9 2.9 3.9 11.9 12.8 20.2 60 22.4 11.0 12.1 3.1 4.1 12.1 0.425 0.468 0.114 0.153 0.468 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.433 0.476 0.122 0.161 0.476 MIN. TYP. MAX. 12.992 0.519 inch 14/18 ST3222E Package mechanical data Tape & Reel SSOP20 MECHANICAL DATA mm. DIM. MIN. A C D N T Ao Bo Ko Po P 8.4 7.7 2.9 3.9 11.9 12.8 20.2 60 22.4 8.6 7.9 3.1 4.1 12.1 0.331 0.303 0.114 0.153 0.468 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.339 0.311 0.122 0.161 0.476 MIN. TYP. MAX. 12.992 0.519 inch 15/18 Package mechanical data ST3222E Tape & Reel TSSOP20 MECHANICAL DATA mm. DIM. MIN. A C D N T Ao Bo Ko Po P 6.8 6.9 1.7 3.9 11.9 12.8 20.2 60 22.4 7 7.1 1.9 4.1 12.1 0.268 0.272 0.067 0.153 0.468 TYP MAX. 330 13.2 0.504 0.795 2.362 0.882 0.276 0.280 0.075 0.161 0.476 MIN. TYP. MAX. 12.992 0.519 inch 16/18 ST3222E Revision history 6 Table 11. Date Revision history Revision history Revision 6 Changes Order codes has been updated and new template. 22-Mar-2006 17/18 ST3222E Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST'S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. 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(c) 2006 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 18/18 |
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