HYC9088A

The HYC9088 Twisted Pair and Coaxial Compatible High Impedance Transceiver (HIT) is a hybrid module that interfaces an ARCNET Local Area Network controller to one twisted pair or coaxial cable. The HIT interfaces directly with Standard Microsystems Corporation's ARCNET LAN controllers operating at 2.5 Mbps and connects to a variety of shielded and unshielded twisted pair or coaxial cables via an on-board transformer. The network topologies supported by the HIT are daisy chain, star, and bus configurations.

During data transmission, the HIT converts the digital pulse information provided by the LAN controller into analog signals and drives them onto the cable. The transmitted signals are filtered to eliminate undesirable frequencies. The receiver section of the HYC9088 identifies dipulse signals on the cable and converts them into TTL signals to be supplied to the LAN controller.

The HIT supports ARCNET's Dipulse Encoding Scheme and is 100% compatible with all existing coax-based ARCNET networks. This provides an ARCNET network designer with flexibility to easily combine coax and twisted pair cabling.

Features
  • ARCNET on Twisted Pair or Coaxial Cable
  • Drives Shielded and Unshielded Twisted Pair Cable or Coaxial Cable
  • Compatible with Existing ARCNET Installations
  • 2.5 Mbps Operation
  • Supports Star, Bus, and Daisy Chained Configurations
  • Enhanced Built-in Filters for Reduced EMI
  • Twenty Pin Single In-Line Package
  • Straight or Right Angle Lead Frame
  • New Reduced Size
Parameter
Parameter Name Value Value
Standalone Arcnet Cntrl N/A N/A
PHY Yes Yes
TX/RX RAM Buffer(Bytes) N/A N/A
Deterministic Protocola (Token Passing) N/A N/A
Operating Voltage (V) + 5V /- 5V + 5V /- 5V
Max Speed (MHz) 2.5 Mbps 2.5 Mbps
Interface Twisted Pair, Coax Twisted Pair, Coax
Temp Range Max (°C) 70 70
Comments Twisted pair and COAX high impedance transceiver Twisted pair and COAX high impedance transceiver
Documents
HYC9088A ARCNET Twisted Pair and Coaxial Compatible High Impedance TransceiverData Sheets02/16/2007109KB
TN71_SMSC - ARCNET Cable Length vs. Number of Nodes for the HYC9088 in Coaxial Bus Topology (May 1991)AppNote04/30/1991120KB
TN75_SMSC - RS485 Cabling Guidelines for the COM20020 Universal Area Network Controller (ULANC) and Experimental Procedure for VerificationAppNote04/30/1994174KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
HYC9088AR-LF20SIP0C to +70CTRAY**********
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
HYC9088AR-LF6.60000020SIP51x13x9mmSACe1
HYC9088A ARCNET Twisted Pair and Coaxial Compatible High Impedance Transceiver HYC9088A
TN71_SMSC HYC9088A
TN75_SMSC HYC9088A