ON Semiconductor Is Now To learn more about onsemi, please visit our website at www.onsemi.com onsemi andand other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba onsemi or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. onsemi reserves the right to make changes at any time to any products or information herein, without notice. The information herein is provided as-is and onsemi makes no warranty, representation or guarantee regarding the accuracy of the information, product features, availability, functionality, or suitability of its products for any particular purpose, nor does onsemi assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Buyer is responsible for its products and applications using onsemi products, including compliance with all laws, regulations and safety requirements or standards, regardless of any support or applications information provided by onsemi. Typical parameters which may be provided in onsemi data sheets and/ or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customers technical experts. onsemi does not convey any license under any of its intellectual property rights nor the rights of others. onsemi products are not designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use onsemi products for any such unintended or unauthorized application, Buyer shall indemnify and holdo nsemi and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that onsemi was negligent regarding the design or manufacture of the part. onsemi is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. Other names and brands may be claimed as the property of others. A5191HRT HART Modem Description The A5191HRT is a singlechip, CMOS modem for use in highway addressable remote transducer (HART) field instruments and masters. The modem and a few external passive components provide all of the functions needed to satisfy HART physical layer requirements www.onsemi.com including modulation, demodulation, receive filtering, carrier detect, and transmitsignal shaping. The A5191HRT uses phase continuous frequency shift keying (FSK) at 1200 bits per second. To conserve power the receive circuits are disabled during transmit operations and vice versa. This provides the halfduplex operation used in HART communications. PLCC28 QFN32 LQFP32 Features P SUFFIX N SUFFIX L SUFFIX CASE 776AA CASE 488AM CASE 561AB Singlechip, Halfduplex 1200 Bits per Second FSK Modem Bell 202 Shift Frequencies of 1200 Hz and 2200 Hz MARKING DIAGRAMS 3.0 V 5.5 V Power Supply (Top Views) Transmitsignal Wave Shaping 128 Receive Bandpass Filter Low Power: Optimal for Intrinsically Safe Applications A5191HRTPG Compatible with 3.3 V or 5 V Microcontroller AWLYYWW Internal Oscillator Requires 460.8 kHz Crystal or Ceramic Resonator Meets HART Physical Layer Requirements Industrial Temperature Range of 40C to +85C Available in 28pin PLCC, 32pin QFN and 32pin LQFP Packages These are PbFree Devices A5191 Applications HRTL AWLYYWWG HART Multiplexers HART Modem Interfaces 32 1 4 20 mA Loop Powered Transmitters 1 A5191 HRTNG AWLYYWW A5191HRTxx = Specific Device Code xx = P (PLCC), L (LQFP) or N (QFN) A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G or = PbFree Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 14 of this data sheet. Semiconductor Components Industries, LLC, 2014 1 Publication Order Number: April, 2018 Rev. 10 A5191HRT/D