DATASHEET +5V Powered, Dual RS-232 Transmitter/Receiver ICL232 Features The ICL232 is a dual RS-232 transmitter/receiver interface Meets all RS-232C and V.28 specifications circuit that meets all ElA RS-232C and V.28 specifications. It Requires only single +5V power supply requires a single +5V power supply, and features two onboard Onboard voltage doubler/inverter charge pump voltage converters which generate +10V and -10V supplies from the 5V supply. Low power consumption 2 drivers The drivers feature true TTL/CMOS input compatibility, slew-rate-limited output, and 300 power-off source - 9V output swing for +5V lnput impedance. The receivers can handle up to +30V, and have a - 300 power-off source impedance 3k to 7k input impedance. The receivers also have - Output current limiting hysteresis to improve noise rejection. - TTL/CMOS compatible - 30V/s maximum slew rate Applications Any system requiring RS-232 communications port 2 Receivers - Computer - portable and mainframe - 30V input voltage range - Peripheral - printers and terminals -3k to 7k input impedance - Portable instrumentation - 0.5V hysteresis to improve noise rejection -Modems All critical parameters are guaranteed over the entire commercial, industrial and military temperature ranges Dataloggers Pb-free (RoHS compliant) +5V + 1.0F 16 V 1 CC 1F C1+ + + 2 +5V TO 10V 1F V+ 3 VOLTAGE INVERTER C1- 4 C2+ + +10V TO -10V 6 1F V- 5 VOLTAGE INVERTER C2- 1F + +5V T1 14 11 400k T1 T1 IN OUT +5V T2 10 400k 7 T2 T2 IN OUT 12 13 R1 R1 OUT IN 5k R1 9 8 R2 R2 IN OUT 5k R2 15 FIGURE 1. FUNCTIONAL DIAGRAM October 15, 2014 CAUTION: These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1 1-888-INTERSIL or 1-888-468-3774 Copyright Intersil Americas LLC 2001, 2005, 2014. All Rights Reserved FN3020.8 Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners.ICL232 Pin Configuration ICL232 (16 LD SOIC) TOP VIEW C1+ 1 16 V CC V+ 2 15 GND C1- 3 14 T1 OUT C2+ 4 13 R1 IN C2- 5 12 R1 OUT 11 T1 V- 6 IN T2 OUT 7 10 T2 IN R2 8 9 R2 IN OUT Pin Descriptions PIN PIN NAME DESCRIPTION 1 C1+ External capacitor + for internal voltage doubler. 2 V+ Internally generated +10V (typical) supply. 3 C1- External capacitor - for internal voltage doubler. 4 C2+ External capacitor + internal voltage inverter. 5 C2- External capacitor - internal voltage inverter. 6 V- Internally generated -10V (typical) supply. 7T2 RS-232 Transmitter 2 output 10V (typical). OUT 8R2 RS-232 Receiver 2 input, with internal 5k pulldown resistor to GND. IN 9 R2out Receiver 2 TTL/CMOS output. 10 T2 Transmitter 2 TTL/CMOS input, with internal 400k pullup resistor to V . IN CC 11 T1 Transmitter 1 TTL/CMOS input, with internal 400k pullup resistor to V . IN CC 12 R1 Receiver 1 TTL/CMOS output. OUT 13 R1 RS-232 Receiver 1 input, with internal 5k pulldown resistor to GND. IN 14 T1 RS-232 Transmitter 1 output 10V (typical). OUT 15 GND Supply Ground 16 V Positive Power Supply +5V 10%. CC Ordering Information PART NUMBER TEMP RANGE PACKAGE PKG (Notes 1, 2) (C) (Pb-Free) DWG. ICL232CBEZ 0 to +70 16 Ld SOIC M16.3 ICL232CBEZT (Note 3) 0 to +70 16 Ld SOIC M16.3 NOTES: 1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 2. For Moisture Sensitivity Level (MSL), please see product information page for ICL232. For more information on MSL, please see tech brief TB363. 3. Please refer to TB347 for details on reel specifications. Submit Document Feedback FN3020.8 2 October 15, 2014