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ST3222CTR

ST3222CTR

  • 厂商:

    STMICROELECTRONICS(意法半导体)

  • 封装:

    TSSOP-20_6.5X4.4MM

  • 描述:

    IC TRANSCEIVER FULL 2/2 20TSSOP

  • 数据手册
  • 价格&库存
ST3222CTR 数据手册
ST3222B ST3222C 3 to 3.6 V, low power, up to 400 kbps RS-232 drivers and receivers Features ■ 300 µA supply current ■ 250 kbps minimum guarantee data rate ■ 6 V/µs minimum guarantee slew rate ■ Meet EIA/TIA-232 specification down to 3 V TSSOP20 Description The ST3222 is a 3 V powered EIA/TIA-232 and V.28/V.24 communications interface with low power requirements and high data-rate capabilities. ST3222 has a proprietary low dropout transmitter output stage providing true RS-232 performance from 3 to 3.6 V power supplies. The device requires only four small 0.1 mF standard external capacitors for operating from 3 V supply. The ST3222 has two receivers and two drivers. The ST3222 features a 1 mA 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 1 mA supply current. The device is guaranteed to run at data rates of 250 Kbps while maintaining RS-232 output levels. Typical applications are notebooks, subnotebooks and palmtop computers, battery powered equipment, hand-held equipment, peripherals and printers. Table 1. Device summary Order codes Temperature range Package Packaging ST3222CTR 0 to 70 °C TSSOP20 (tape and reel) 2500 parts per reel ST3222BTR -40 to 85 °C TSSOP20 (tape and reel) 2500 parts per reel August 2010 Doc ID 7512 Rev 7 1/13 www.st.com 1 Contents ST3222B - ST3222C Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.1 4 Receiver electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 Typical performance characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2/13 Doc ID 7512 Rev 7 ST3222B - ST3222C Pin configuration 1 Pin configuration Figure 1. Pin connections CS02220 Table 2. Pin descriptions Pin n° Symbol Name and function 1 EN Receiver enable control. Drive low for normal operation. Drive high to force the receivers outputs (R_OUT) into a high-impedance state. 2 C1+ Positive terminal for the first charge pump capacitor 3 V+ 5.5 V Generated by the charge pump. 4 C1- Negative terminal for the first charge pump capacitor 5 C2+ Positive terminal for the second charge pump capacitor 6 C2- Negative terminal for the second charge pump capacitor 7 V- -5.5 V Generated by the charge pump. 8 T2OUT 9 R2IN Second receiver Input voltage 10 R2OUT Second receiver output voltage 11 NC Not connected 12 T2IN Second transmitter input voltage 13 T1IN First transmitter Input voltage 14 NC Not connected 15 R1OUT 16 R1IN 17 T1OUT 18 GND Ground 19 VCC Supply voltage 20 SHDN Second transmitter output voltage First receiver output voltage First receiver input voltage First transmitter output voltage Active low shutdown control input. Drive low to shutdown transmitter and charge pump Doc ID 7512 Rev 7 3/13 Maximum ratings ST3222B - ST3222C 2 Maximum ratings Table 3. Absolute maximum ratings Symbol Parameter Value Unit -0.3 to 6 V VCC Supply voltage V+ Doubled voltage terminal (VCC - 0.3) to 7 V V- Inverted voltage terminal 0.3 to -7 V 13 V -0.3 to 6 V ± 25 V ± 13.2 V -0.3 to (VCC + 0.3) V V+ +|V-| TIN Transmitter input voltage range RIN Receiver input voltage range TOUT Transmitter output voltage range ROUT Receiver output voltage range tSHORT Note: Transmitter output short to gnd time Continuous Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Externally applied V+ and V- can have a maximum magnitude of +7 V, but their absolute addition can not exceed 13 V. Running on internal charge pump, intrinsic self limitation allows exceeding those values without any damage. Startup voltage sequence (VCC, then V+, then V-) is critical, therefore it is not recommended to use this device using externally applied voltage to V+ and V-. 4/13 Doc ID 7512 Rev 7 ST3222B - ST3222C Electrical characteristics 3 Electrical characteristics Table 4. Electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 3.6 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Symbol Parameter ISUPPLY VCC power supply current No load VCC = 3.3 V SHDN = VCC SHUTDOWN supply current No load VCC = 3.3V SHDN = GND ISHDN Table 5. Symbol Test conditions Parameter Max. Unit TA = 25 °C 0.3 1 mA TA = 25 °C 1 10 µA Test conditions Input logic threshold low T-IN, EN, SHDN (Note:) VIH Input logic threshold high IIL Typ. Logic input electrical characteristics (C1 - C4 = 0.1 µF, VC = 3 V to 3.6 V, TA = - 40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) VIL VHYS Min. VCC = 3.3 V Min. Max. Unit 0.8 V 2 Transmitter input hysteresis Input leakage current Typ. V 0.5 ± 0.01 T-IN, EN, SHDN V ±1 µA Note: Transmitter input hysteresis is typically 250 mV Table 6. Transmitter electrical characteristics (C1 - C4 = 0.1 µA VCC = 3 V to 3.6 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Symbol Parameter Test conditions Min. Typ. Max. Unit VTOUT Output voltage swing All transmitter outputs are loaded with 3 kΩ to GND ±5 ± 5.4 V RTOUT Transmitter output resistance VCC = V+ = V- = 0 V, VOUT = ± 2 V 300 10M Ω ITSC Output short circuit current ITOL Output leakage current VCC = 0V or 3 V to 3.6 V, VOUT = ± 12 V Transmitters disable Doc ID 7512 Rev 7 ± 60 mA ± 25 µA 5/13 Electrical characteristics ST3222B - ST3222C 3.1 Receiver electrical characteristics Table 7. Receiver electrical characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 3.6 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Symbol Parameter Test conditions IOL Output leakage current VRIN Receiver Input voltage operating range VRIL Input threshold low TA = 25 °C, VCC = 3.3 V VRIH Input threshold high TA = 25 °C, VCC = 3.3 V R-OUT, EN = VCC, receiver disabled Input hysteresis RRIN Input resistance VROL TTL/CMOS output voltage IOUT = 1.6 mA low VROH TTL/CMOS output voltage IOUT = -1 mA high Symbol Typ. Max. Unit ± 0.05 ± 10 µA 25 V -25 VRIHYS Table 8. Min. 0.6 1.2 1.5 V 2.4 V 0.5 TA = 25 °C 3 5 V 7 kΩ 0.4 V VCC-0.6 VCC-0.1 V Timing characteristics (C1 - C4 = 0.1 µF, VCC = 3 V to 3.6 V, TA = -40 to 85 °C, unless otherwise specified. Typical values are referred to TA = 25 °C) Parameter Test conditions DR Data transfer rate RL = 3 kΩ CL2= 1000 pF one transmitter switching tPHLR tPLHR Propagation delay input to output RXIN to RXOUT, CL = 150 pF |tPHLT - tTHL| Transmitter propagation delay difference (1) Min. Typ. Max. Unit 240 400 Kbps 0.2 µs 100 ns tOER Receiver output enable time Normal operation 200 ns tODR Receiver output disable time Normal operation 200 ns 50 ns |tPHLR - tTHR| SRT Receiver propagation delay difference Transition slew rate TA = 25 °C, RL = 3 kΩ to 7 kΩ, VCC = 3.3 V measured from +3 V to -3 V or -3 V to +3 V CL = 150 pF to 1000 pF CL = 150pF to 2500pF 1. Transmitter skew is measured at the transmitter zero cross points 6/13 Doc ID 7512 Rev 7 6 4 30 30 V/µs V/µs ST3222B - ST3222C 4 Application Application Figure 2. Application circuits CS02200 Table 9. Capacitance value (µF) C1 C2 C3 C4 Cbypass 0.1 0.1 0.1 0.1 0.1 Doc ID 7512 Rev 7 7/13 Application 4.1 Figure 3. Figure 5. 8/13 ST3222B - ST3222C Typical performance characteristics (unless otherwise specified TJ = 25 °C) Figure 4. Driver voltage transfer characteristics for transmitter inputs Driver voltage transfer characteristics for receiver inputs Output current vs. output low voltage Output current vs. output high voltage Figure 6. Doc ID 7512 Rev 7 ST3222B - ST3222C 5 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Doc ID 7512 Rev 7 9/13 Package mechanical data Table 10. ST3222B - ST3222C TSSOP20 package mechanical data mm. in. Dim. Min. Typ. Max. A Min. Typ. 1.2 A1 0.05 A2 0.8 b Max. 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 0.0079 D 6.4 6.5 6.6 0.252 0.256 0.260 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 Figure 7. 0.0256 BSC 0.60 8° 0° 0.75 0.018 8° 0.024 0.030 TSSOP20 package mechanical drawing A A2 A1 b K e L E c D E1 PIN 1 IDENTIFICATION 1 0087225C 10/13 Doc ID 7512 Rev 7 ST3222B - ST3222C Table 11. Package mechanical data Tape and reel TSSOP20 mechanical data mm. in. Dim. Min. A Typ. Max. Min. Typ. 330 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 22.4 0.519 0.882 A0 6.8 7 0.268 0.276 B0 6.9 7.1 0.272 0.280 K0 1.7 1.9 0.067 0.075 P0 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 Figure 8. Tape and reel schematic TSSOP20 Note: Drawing not to scale Doc ID 7512 Rev 7 11/13 Revision history ST3222B - ST3222C 6 Revision history Table 12. Document revision history Date Revision 22-Mar-2006 5 Order codes updated. 21-Jan-2008 6 Modified: Table 3 and added Table 1. 25-Aug-2010 7 Updated Table 4, ECOPACK® text in Section 5: Package mechanical data; reformatted document, minor textual changes. 12/13 Changes Doc ID 7512 Rev 7 ST3222B - ST3222C 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. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2010 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 - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com Doc ID 7512 Rev 7 13/13
ST3222CTR 价格&库存

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ST3222CTR
  •  国内价格 香港价格
  • 1+14.728351+1.77823
  • 10+13.1979010+1.59345
  • 25+12.4505125+1.50321
  • 100+10.60691100+1.28063
  • 250+9.95936250+1.20244
  • 500+8.71449500+1.05215
  • 1000+7.220631000+0.87178

库存:2309