ST207EB ST207EC ± 15 kV ESD protected 5 V RS-232 transceiver Features ■ ESD protection for RS-232 i/o pins: ±15 kV human body model ■ 230kbps data rate ■ Guaranteed slew rate 3 V/ms (min.) ■ Operates from a single 5 V power supply ■ Packaged in SSO-24 and TSSOP24 Description SSOP TSSOP The ST207E is a 5 driver and 3 receiver devices designed for RS-232 and V.28 communications in harsh environments. Each transmitter output and receiver input is protected against ±15 KV electrostatic discharge (ESD) shocks. The drivers and receivers of the ST207E meet all EIA/TIA232E and CCITT V.28 specifications at data rates up to 120 Kbps, when loaded in accordance with the EIA/TIA-232E specification. The ST207E operates with four 0.1 µF capacitors. It came in 24-pin SSOP and TSSOP packages. Table 1. Device summary Order codes Temperature range Package Packaging ST207ECPR 0 to 70 °C SSOP-24 (Tape & Reel) 1350 parts per reel ST207EBPR -40 to 85 °C SSOP-24 (Tape & Reel) 1350 parts per reel ST207ECTR 0 to 70 °C TSSOP24 (Tape & Reel) 2500 parts per reel ST207EBTR -40 to 85 °C TSSOP24 (Tape & Reel) 2500 parts per reel August 2007 Rev. 15 1/15 www.st.com 15 ST207EB - ST207EC Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2/15 ST207EB - ST207EC Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) Table 2. Pin description Pin N° Symbol Note 1 T3OUT RS-232 driver output 2 T1OUT RS-232 driver output 3 T2OUT RS-232 driver output 4 R1IN RS-232 receiver input 5 R1OUT 6 T2IN TTL/CMOS driver input internal pull-up to VCC 7 T1IN TTL/CMOS driver input internal pull-up to VCC 8 GND Ground 9 VCC 4.75V to 5.25V supply voltage 10 C1+ Terminal for positive charge-pump capacitor 11 V+ 2VCC generated by the charge-pump 12 C1- Terminal for negative charge-pump capacitor 13 C2+ Terminal for positive charge-pump capacitor 14 C2- Terminal for negative charge-pump capacitor 15 V- -2VCC generated by the charge-pump 16 R3IN 17 R3OUT TTL/CMOS receiver output RS-232 receiver input TTL/CMOS receiver output 3/15 Pin configuration Table 2. 4/15 ST207EB - ST207EC Pin description Pin N° Symbol Note 18 T3IN TTL/CMOS driver input internal pull-up to VCC 19 T4IN TTL/CMOS driver input internal pull-up to VCC 20 T5OUT 21 T5IN 22 R2OUT 23 R2IN RS-232 receiver input 24 T4OUT RS-232 driver output RS-232 driver output TTL/CMOS driver input internal pull-up to VCC TTL/CMOS receiver output ST207EB - ST207EC Maximum ratings 2 Maximum ratings Table 3. Absolute maximum ratings Symbol Parameter Value Unit -0.3 to 6 V VCC Supply voltage V+ Extra positive voltage (VCC - 0.3) to 14 V V- Extra negative voltage -14 to 0.3 V TIN Transmitter input voltage range -0.3 to (VCC + 0.3) V RIN Receiver input voltage range ± 30 V (V- - 0.3) to (V+ + 0.3) V V TOUT Transmitter output voltage range ROUT Receiver output voltage range -0.3 to (VCC + 0.3) TSHORT Short circuit duration on tOUT Continuous Storage temperature range -65 to 150 TSTG Note: °C 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. 5/15 Electrical characteristics ST207EB - ST207EC 3 Electrical characteristics Table 4. ESD Performance: transmitter outputs, receiver inputs Symbol Parameter Test condition Min. Max. Unit ESD ESD protection voltage Human body model ± 15 KV ESD ESD protection voltage IEC-1000-4-2 Contact discharge ±8 KV Table 5. Symbol ISUPPLY Table 6. Symbol Electrical characteristics (C1 - C4 = 0.1 µF, VCC = 5 V ± 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25°C). Parameter VCC power supply current Test condition Min. No Load, TA = 25°C Parameter Test condition Unit 2 5 mA Typ. ± 8.5 All Driver loaded with 3KΩ to GND ±5 ROUT Transmitter output resistance VCC = V+ = V- = 0V VOUT = ± 2V 300 ISC Output short circuit current IIL Input pull-up current VTIL Input logic threshold low VTIH Input logic threshold high Symbol Max. Min. Output voltage swing Table 7. Typ. Transmitter electrical characteristics (C1 - C4 = 0.1 µF, VCC = 5V ± 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25°C). VTOUT TIN = 0V Max. Unit V Ω ± 18 ± 60 mA 15 200 µA 0.8 V 2 V Receiver electrical characteristics (C1 - C4 = 0.1 µF, VCC = 5 V ± 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25°C). Parameter Test condition VRIN Receiver input voltage operating range VRIL Input threshold low TA = 25°C VCC = 5V VRIH Input threshold high TA = 25°C VCC = 5V VRIHYS Input hysteresis VCC = 5V, no hysteresis in shutdown RRIN Input resistance TA = 25°C VCC = 5V VOL Output voltage low VOH Output voltage high 6/15 Typ. Min. Typ. -30 IOUT = -1mA 0.8 Max. Unit 30 V 1.2 V 1.7 2.4 V 0.2 0.5 1 V 3 5 7 KΩ 0.4 V 3.5 VCC-0.4 V ST207EB - ST207EC Table 8. Symbol DR Electrical characteristics Timing characteristics (C1 - C4 = 0.1 µF, VCC = 5V ± 5%, TA = min. to max., unless otherwise specified. Typical values are referred to TA = 25°C). Parameter Maximum data rate Test condition Min. Typ. RL = 3kΩ to 7kΩ CL= 50pF to 1000pF one transmitter switching 150 240 Kbps RL = 3kΩ to 7kΩ CL= 50pF to 150pF one transmitter switching 230 300 Kbps tPHLR tPLHR Receiver propagation delay All drivers loaded with 3KΩ to GND tPHLT tPLHT Transmitter propagation delay RL = 3kΩ CL= 2500pF All transmitter loaded Transition-region slew rate TA = 25°C RL = 3 to 7 kΩ VCC = 5 V CL = 50pF to 1000pF measured from +3V to -3V or -3V to +3V SR 3 Max. Unit 0.2 10 µs 2 3 µs 7 30 V/µs 7/15 Typical application ST207EB - ST207EC 4 Typical application Figure 2. Application circuit Table 9. Capacitance value (µF) 8/15 C1 C2 C3 C4 C5 0.1 0.1 0.1 0.1 0.1 ST207EB - ST207EC 5 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® 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. 9/15 Package mechanical data ST207EB - ST207EC SSOP24 mechanical data mm. inch. Dim. Min. Typ. Max. A Min. Typ. Max. 2 A1 0.05 A2 1.65 b 0.079 0.002 1.75 1.85 0.065 0.22 0.38 0.009 0.015 c 0.09 0.25 0.004 0.010 D 7.9 8.2 8.5 0.311 0.323 0.335 E 7.4 7.8 8.2 0.291 0.307 0.323 E1 5.00 5.3 5.6 0.197 0.209 0.220 e 0.069 0.65 BSC K 0° L 0.55 A 0.073 0.0256 BSC 0.75 8° 0° 8° 0.95 0.022 0.030 0.037 A2 A1 b K e L E c D E1 PIN 1 IDENTIFICATION 1 0053237/C 10/15 ST207EB - ST207EC Package mechanical data TSSOP24 mechanical data mm. inch. Dim. Min. Typ. Max. A Min. Typ. Max. 1.1 A1 0.05 0.15 A2 0.043 0.002 0.006 0.9 0.035 b 0.19 0.30 0.0075 0.0118 c 0.09 0.20 0.0035 0.0079 D 7.7 7.9 0.303 0.311 E 4.3 4.5 0.169 0.177 e 0.65 BSC 0.0256 BSC H 6.25 6.5 0.246 0.256 K 0° 8° 0° 8° L 0.50 0.70 0.020 0.028 A A2 A1 b K e L H c D E PIN 1 IDENTIFICATION 1 7047476B 11/15 Package mechanical data ST207EB - ST207EC Tape & reel SSOP24 mechanical data mm. inch. Dim. Min. A Max. Min. 330 13.2 Typ. Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 12/15 Typ. 0.504 22.4 0.519 0.882 Ao 8.4 8.6 0.331 0.339 Bo 8.7 8.9 0.343 0.351 Ko 2.9 3.1 0.114 0.122 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 ST207EB - ST207EC Package mechanical data Tape & reel TSSOP24 mechanical data mm. inch. Dim. Min. A Typ. Max. Min. 330 Max. 12.992 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Typ. 0.504 22.4 0.519 0.882 Ao 6.8 7 0.268 0.276 Bo 8.2 8.4 0.323 0.331 Ko 1.7 1.9 0.067 0.075 Po 3.9 4.1 0.153 0.161 P 11.9 12.1 0.468 0.476 13/15 Revision history ST207EB - ST207EC 6 Revision history Table 10. Revision history Date Revision 09-Feb-2005 13 Mistake on Table 1. 14-Mar-2006 14 Order codes has been updated and new template. 22-Aug-2007 15 Added Table 1. in cover page. 14/15 Changes ST207EB - ST207EC 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. 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