FT 3120 and FT 3150 Free Topology Smart Transceivers Features Combines an ANSI/CEA 709.3-1999 compliant free topology twisted pair transceiver with a Neuron 3120 or Neuron 3150 network processor core Supports polarity insensitive free topology star, daisy chain, bus, loop, or mixed topology wiring 78 kilobits per second bit rate for distances up to 500 meters in free topology or 2700 meters in bus topology with double terminations High performance Neuron network processor core enables concurrent pro- cessing of application code and network packets (40MHz maximum for FT 3120 smart transceiver, 20MHz maximum for FT 3150 smart transceiver) FT 3120 transceiver in a 44-pin TQFP 4Kbytes of embedded EEPROM for application code and conguration data package 1 on the FT 3120 smart transceiver and 0.5Kbytes of embedded EEPROM for conguration data on the FT 3150 smart transceiver Interface for external memory for devices with larger memory requirements (FT 3150 smart transceiver only) 2Kbytes of embedded RAM for buering network data and network variables 11 I/O pins with 34 programmable standard I/O modes minimizing external in- terface circuitry Unique 48-bit Neuron ID in every device for network installation and manage- ment Compact external transformer with patent pending architecture providing exceptional immunity from magnetic interference and high frequency common mode noise Compatible with TP/FT-10 channels using FTT-10 and/or FTT-10A Free Topol- ogy Transceivers and, with suitable DC blocking capacitors, LPT-10 Link Power Transceivers Communications parameters preprogrammed for the TP/FT-10 channel at 10MHz 5V operation with low power consumption -40 to +85C operating temperature range 3, 4 www.echelon.comFT 3150 smart transceiver can address up input/output modes. Combining a wide Description to 58Kbytes of external memory, of which range of I/O models with two on-board The FT 3120 and FT 3150 Free Topology 16Kbytes of external nonvolatile memory is timer/counters enable the FT 3120 and FT Smart Transceivers dedicated to the Neuron rmware. The FT 3150 smart transceivers to interface to ap- integrate a Neuron 3120 or Neuron 3150 3150 transceiver is supplied in a 64-lead plication circuits with minimal external logic network processor core, respectively, with a TQFP package. or software development. free topology twisted pair transceiver to The embedded EEPROM may be written create a low cost, smart transceiver on a Easy Interface to Any up to 10,000 times with no data loss. Data chip. Combined with Echelon s high per- stored in the EEPROM will be retained for Host MCU formance FT-X1 or FT-X2 Communication at least 10 years. 3 Transformer, the FT 3120 and FT 3150 The FT 3120 and FT 3150 Free Topology smart transceivers set new benchmarks for Three dierent versions of the FT 3120 and Smart Transceivers can be easily interfaced performance, robustness, and low cost. FT 3150 Free Topology Smart Transceivers to other host MCUs via Echelons Short- Ideal for use in LonWorks devices destined are available to meet a wide range of appli- Stack or MIP rmware. When used with for building, industrial, transportation, cations and packaging requirements. See the ShortStack or MIP rmware, the Smart home, and utility automation applications, FT 3120 and FT 3150 Free Topology Smart Transceiver enables any OEM product with the FT 3120 and FT 3150 Free Topology Transceiver Ordering Information below for a host microcontroller to quickly and inex- Smart Transceivers can be used in both product oerings and descriptions. pensively become a networked, Internet- new product designs and as a means of accessible device. The ShortStack rmware The FT-X1 is a through-hole communication cost reducing existing nodes. uses an SCI or SPI serial interface to com- transformer while the FT-X2 is a surface municate between the host and the Smart The integral transceiver is fully compatible mount transformer. Either transformer can Transceiver. The MIP uses a high perform- with the TP/FT-10 channel and can commu- be used with the FT 3120 or FT 3150 Free ance parallel or dual-ported RAM interface. nicate with devices using Echelon s Topology Smart Transceivers. the FT-X1 and FTT-10A Free Topology Transceiver, and, FT-X2 transformers have similar noise im- Advanced Network Noise when used with suitable DC isolation ca- munity and performance characteristics. pacitors, the LPT-11 Link Power Transceiver. Protection Models 14212R-500, 14222R-800, 14230R- The free topology transceiver supports po- 450, 14240R, and 14250R-300 are compli- The FT 3120 and FT 3150 Free Topology larity insensitive cabling using a star, bus, ant with the European Directive Smart Transceivers are composed of two daisy-chain, loop, or combination topology 2002/95/EC on the restriction of the use of components the FT 3120/FT 3150 IC and (see Figure 1)freeing the installer from the certain hazardous substances (RoHS) in an external communication transformer. need to adhere to a strict set of wiring electrical and electronic equipment. The transformer enables operation in the rules. Free topology wiring reduces the presence of high frequency common mode time and expense of node installation by al- Flexible I/O, Simple noise on unshielded twisted pair networks. lowing the wiring to be installed in the Properly designed nodes can meet the rig- most expeditious and cost-eective man- Conguration orous Level 3 requirements of EN 61000-4- ner. It also simplies network expansion by The FT 3120 and FT 3150 Free Topology 6 without the need for a network isolation eliminating restrictions on wire routing, Smart Transceivers provide 11 I/O pins choke. The transformer also oers out- splicing, and node placement. which may be congured to operate in one standing immunity from magnetic noise, The FT 3120 Free Topology Smart Trans- or more of 34 predened standard eliminating the need for protective mag- ceiver is a complete system-on-a-chip that is targeted at cost-sensitive and small form factor designs with a need for up to 4Kbytes of application code. The Neuron 3120 core operates at up to 40MHz 2 , and includes 4Kbytes of EEPROM and 2Kbytes of RAM. The Neuron rmware is pre-pro- grammed in an on-chip ROM. The applica- tion code is stored in the embedded EEPROM memory and may be updated over the network. The FT 3120 smart trans- ceiver is oered in a 32-lead SOIC package as well as a compact 44-lead TQFP pack- age. The FT 3150 Free Topology Smart Trans- ceiver includes a 20MHz Neuron 3150 core, 0.5Kbytes of EEPROM, and 2Kbytes of RAM. Through its external memory bus, the Figure 1. Typical Free Topologies Supported by the FT 3120 and FT 3150 Free Topology Smart Transceivers Notes: 1 See table on FT 3120 and FT 3150 Free Topology Smart Transceiver Ordering Information for other product oerings and description. 2 The FT 3120 Free Topology Smart Transceiver is designed to run at frequencies up to 40MHz using an external clock oscillator. External oscillators may take several milliseconds to stabilize after power-up. The FT 3120 Free Topology Smart Transceiver operating at 40MHz should be held in reset until the CLK1 input is stable. With some oscillators, this may require the use of a power-on-reset-pulse stretching Low-Voltage Detection chip/circuit. Check the oscillator specications for more information on startup stabilization times. 3 EEPROM programming must be limited to -25 to 85C for a 10-year data retention over the -40 to 85C operating temperature range. 4 Maximum junction temperature should not exceed 105C. Tjunction can be calculated as follows: Tjunction = TAmbient + VIJA where JA for 32-pin SOIC = 51C/W, JA for 44-pin TQFP = 43C/W, and JA for 64-pin TQFP = 44C/W. www.echelon.com