ASI4U / AS-Interface Spec. V3.0 ASI4U-E / Compliant Universal AS-i IC ASI4U-F Datasheet Brief Description Benefits The ASI4U is a next-generation CMOS integrated Flexible, separated I/O pins circuit for AS-i networks. This low-level field bus AS-i Flexible AS-i Bus adoption (isolated transceiver) (Actuator Sensor Interface) was designed for easy, Very small package SSOP28 (ASI4U and ASI4U-F) safe, and cost-effective interconnection of sensors, High ambient temperature applications (ASI4U-E) actuators, and switches. It transports both power and data over the same two-wire unshielded cable. Physical Characteristics The ASI4U is used as part of a master or slave node ASI4U operational temperature: -25 to +85 C and functions as an interface to the physical bus. It ASI4U-F operational temperature: -40 to +85 C provides the power supply, physical data transfer, and communication protocol handling. The ASI4U is ASI4U-E operational temperature: -25 to +105 C fully compliant with the AS-Interface Complete RoHS-conformant package: SSOP28 (ASI4U and Specification V3.0. It is function and pin compatible ASI4U-F) / SOP28 (ASI4U-E) with the ASI IC. Available Support All configuration data are stored in an internal EEPROM that can be easily programmed by a IDT AS-Interface Programmer Kit V2.0 stationary or handheld programming device. The IDT ASI4U Evaluation Board V2.0 special AS-i safety option assures short response times for security-related events. ASI4U Basic Application Circuits Standard Application Features +24V UIN UOUT Compliant with AS-Interface Complete Specifica- FID OSC1 DSR tion V3.0 PST OSC2 Universal application: slaves, masters, repeaters, ASI+ ASIP DI 3:0 and bus-monitors DO 3:0 Floating AS-i transmitter and receiver for highly ASI4U ASI- ASIN P 3:0 CAP symmetrical high-power applications U5R On-chip electronic inductor with current drive LED1 capability of 55 mA LED2 0V IRD Two configurable LED outputs to support all GND AS-Interface Complete Specification V3.0 status +0V indication modes Extended Power Application with IR-Addressing Option Several data pre-processing functions, including +24V configurable data input filters and bit-selective data inverting UIN UOUT FID OSC1 Additional addressing channel for easy wireless DSR PST module setup OSC2 ASI+ ASIP DI 3:0 Support of 8 and 16 MHz crystals by automatic DO 3:0 frequency detection ASI4U ASI- ASIN P 3:0 Special AS-i safety option CAP U5R Clock watchdog for high system security LED1 LED2 Related Products 0V IRD GND SAP5 Universal AS-Interface IC +0V 2016 Integrated Device Technology, Inc. 1 January 26, 2016 ASI4U / AS-Interface Spec. V3.0 ASI4U-E / Compliant Universal AS-i IC ASI4U-F Datasheet UIN UOUT U5R OSC1 OSC2 ASI4U Block Diagram ELECTRONIC POWER OUTPUT OSCILLATOR CAP DO(3:0) INDUCTOR SUPPLY STAGE INPUT ASI4U/ASI4U-E/ASI4U-F DI(3:0) STAGE P - PULSE RECEIVE I/O DSR N - PULSE ASIP RESET STAGE DATA-STRB DIGITAL REC- RESET LOGIC PARAM OUTPUT PST STAGE STRB SEND-D ASIN TRANSMIT SEND-SBY INPUT THERMAL / OVER- LOAD STAGE OVERLOAD OVER- HEAT PROTECTION IRD IN P(3:0) Typical Applications CMOS AC DIG ANA OUTPUT OUTPUT CURRENT INPUT STAGE STAGE INPUT STAGE INPUT AS-i Master Modules STAGE AS-i Slave Modules AGND LGND AS-i Safety Modules 0V GND IRD LED1 LED2 FID Ordering Information RoHS Minimum Ordering Code Type Package T C Packaging a Conform Order ASI4UE-G1-ST Standard SSOP28 -25 to 85 Y Tube (47 parts/tube) 470 ASI4UE-G1-SR Standard SSOP28 -25 to 85 Y Tape & Reel (1500 parts/reel) 1500 ASI4UE-G1-SR-7 Standard SSOP28 -25 to 85 Y Tape & Reel 7 (500 parts/reel) 500 ASI4UE-G1-MT Master SSOP28 -25 to 85 Y Tube (47 parts/tube) 470 ASI4UE-G1-MR Master SSOP28 -25 to 85 Y Tape & Reel (1500 parts/reel) 1500 ASI4UE-E-G1-ST Standard SOP28 -25 to 105 Y Tube (27 parts/tube) 270 ASI4UE-E-G1-SR Standard SOP28 -25 to 105 Y Tape & Reel (1000 parts/reel) 1000 ASI4UE-F-G1-ST Standard SSOP28 -40 to 85 Y Tube (47 parts/tube) 470 ASI4UE-F-G1-SR Standard SSOP28 -40 to 85 Y Tape & Reel (1500 parts/reel) 1500 2016 Integrated Device Technology, Inc. 2 January 26, 2016 LOGIC POWER- ON RESET AC UOUT SHUT- DOWN LED U5RD OUT FAULT IN CLK PWR FAIL PARAM DATA- OUT OUT PARAM IN DATA-IN