HI-8581, HI-8589 ARINC 429 Transmitter with Line Driver and Dual Receivers The HI-8581 and HI-8589 from Holt Integrated Circuits are silicon gate CMOS devices for interfacing a 16-bit parallel data bus directly to the ARINC 429 serial bus. Both devices provide two receivers, an independent transmitter and line driver capability in a single package. The receiver input circuitry and logic are designed to meet the ARINC 429 specifications for loading, level detection, timing, and protocol. The transmitter section provides the ARINC 429 communication protocol and the line driver circuits provide the ARINC 429 output levels. The 16-bit parallel data bus exchanges the 32-bit ARINC data word in two steps when either loading the transmitter or interrogating the receivers. The data bus interfaces with CMOS and TTL. The HI-8581 has 37.5 ohms in series with each line driver output. The HI-8589 provides the option to bypass most of the internal output resistance so that external series resistance may be added for lighting protection and still match the 75 ohm characteristic impedance of the ARINC bus. Each independent receiver monitors the data stream with a sampling rate 10 times the data rate. The sampling rate is software selectable at either 1MHz or 125KHz. The results of a parity check are available as the 32nd ARINC bit. The HI-8581 and HI-8589 examine the null and data timings and will reject erroneous patterns. For example, with a 125 KHz clock selection, the data frequency must be between 10.4 KHz and 15.6 KHz. • ARINC specification 429 compliant • Direct receiver and transmitter interface to ARINC bus in a single device • 16-Bit parallel data bus • Timing control 10 times the data rate • Selectable data clocks • Receiver error rejection per ARINC 429 standard • Automatic transmitter data timing • Self test mode • Parity functions • Low power • Industrial & extended temperature ranges PIN CONFIGURATION (Top View) 429DI2(B) - 1 D/R1 - 2 D/R2 - 3 SEL - 4 EN1 - 5 EN2 - 6 BD15 - 7 BD14 - 8 BD13 - 9 BD12 - 10 BD11 - 11 HI-8581PQI HI-8589PQI & HI-8581PQT HI-8589PQT 33 - ENTX 32 - N/C 31 - V+ 30 - TXB(OUT) 29 - TXA(OUT) 28 - V27 - GND 26 - TX/R 25 - PL2 24 - PL1 23 - BD00 BD10 - 12 BD09 - 13 BD08 - 14 BD07 - 15 BD06 - 16 GND - 17 BD05 - 18 BD04 - 19 BD03 - 20 BD02 - 21 BD01 - 22 The transmitter has a First In, First Out (FIFO) memory to store 8 ARINC words for transmission. The data rate of the transmitter is software selectable by dividing the master clock, CLK, by either 10 or 80. The master clock is used to set the timing of the ARINC transmission within the required resolution. FEATURES - 429DI2(A) - 429DI1(B) - 429DI1(A) - VCC - N/C - MR - TXCLK - CLK - N/C - N/C - CWSTR GENERAL DESCRIPTION 44 43 42 41 40 39 38 37 36 35 34 August 2013 APPLICATIONS • Avionics data communication • Serial to parallel conversion 44-Pin Plastic Quad Flat Pack (PQFP) (See page 12 for additional pin configurations) • Parallel to serial conversion HOLT INTEGRATED CIRCUITS www.holtic.com (DS8581 Rev. J) 08/13 HI-8581, HI-8589 PIN DESCRIPTION SIGNAL FUNCTION DESCRIPTION VCC POWER +5V ±5% V+ POWER +9.5V to +10.5V V- POWER 429DI1 (A) INPUT ARINC receiver 1 positive input -9.5V to -10.5V 429DI1 (B) INPUT ARINC receiver 1 negative input 429DI2 (A) INPUT ARINC receiver 2 positive input 429DI2 (B) INPUT ARINC receiver 2 negative input D/R1 OUTPUT Receiver 1 data ready flag D/R2 OUTPUT Receiver 2 data ready flag SEL INPUT Receiver data byte selection (0 = BYTE 1) (1 = BYTE 2) EN1 INPUT Data Bus control, enables receiver 1 data to outputs EN2 INPUT Data Bus control, enables receiver 2 data to outputs if EN1 is high BD15 I/O Data Bus BD14 I/O Data Bus BD13 I/O Data Bus BD12 I/O Data Bus BD11 I/O Data Bus BD10 I/O Data Bus BD09 I/O Data Bus BD08 I/O Data Bus BD07 I/O Data Bus BD06 I/O Data Bus GND POWER BD05 I/O Data Bus 0V BD04 I/O Data Bus BD03 I/O Data Bus BD02 I/O Data Bus BD01 I/O Data Bus BD00 I/O Data Bus TX/R OUTPUT PL1 INPUT Transmitter ready flag. Goes low when ARINC word loaded into FIFO. Goes high after transmission and FIFO empty. Latch enable for byte 1 entered from data bus to transmitter FIFO. PL2 INPUT TXA(OUT) OUTPUT Line driver output - A side Latch enable for byte 2 entered from data bus to transmitter FIFO. Must follow PL1. TXB(OUT) OUTPUT Line driver output - B side ENTX INPUT Enable Transmission CWSTR INPUT Clock for control word register CLK INPUT Master Clock input TX CLK OUTPUT MR INPUT Transmitter Clock equal to Master Clock (CLK), divided by either 10 or 80. Master Reset, active low HOLT INTEGRATED CIRCUITS 2 HI-8581, HI-8589 FUNCTIONAL DESCRIPTION ARINC 429 DATA FORMAT The following table shows the bit positions in exchanging data with the receiver or the transmitter. ARINC bit 1 is the first bit transmitted or received. CONTROL WORD REGISTER Both the HI-8581and HI-8589 contain 10 data flip flops whose D inputs are connected to the data bus and clocks connected to CWSTR. Each flip flop provides options to the user as follows: DATA BUS PIN FUNCTION CONTROL BDO5 SELF TEST 0 = ENABLE DESCRIPTION If enabled, the transmitter’s digital outputs are internally connected to the receiver logic inputs BDO6 RECEIVER 1 DECODER 1 = ENABLE If enabled, ARINC bits 9 and, 10 must match the next two control word bits BDO7 - - If Receiver 1 Decoder is enabled, the ARINC bit 9 must match this bit - If Receiver 1 Decoder is enabled, the ARINC bit 10 must match this bit BDO8 - BDO9 RECEIVER 2 DECODER 1 = ENABLE If enabled, ARINC bits 9 and 10 must match the next two Control word bits BD10 - - If Receiver 2 Decoder is enabled, then ARINC bit 9 must match this bit BD11 - - If Receiver 2 Decoder is enabled, then ARINC bit 10 must match this bit INVERT XMTR PARITY 1 = ENABLE Logic 0 enables normal odd parity and Logic 1 enables even parity output in transmitter 32nd bit BD13 XMTR DATA CLK SELECT 0 = ÷10 1 = ÷80 CLK is divided either by 10 or 80 to obtain XMTR data clock BD14 RCVR DTA CLK SELECT 0 = ÷10 1 = ÷80 CLK is divided either by 10 or 80 to obtain RCVR data clock BD12 vcc BYTE 1 DATA BUS BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 ARINC BIT 13 12 11 10 DATA BUS BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 ARINC BIT 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 9 31 30 32 1 2 3 4 5 6 8 BYTE 2 THE RECEIVERS ARINC BUS INTERFACE Figure 1 shows the input circuit for each receiver. The ARINC 429 specification requires the following detection levels: STATE ONE NULL ZERO DIFFERENTIAL VOLTAGE +6.5 Volts to +13 Volts +2.5 Volts to -2.5 Volts -6.5 Volts to -13 Volts The HI-8581 and HI-8589 guarantee recognition of these levels with a common mode Voltage with respect to GND less than ±4V for the worst case condition (4.75V supply and 13V signal level). The tolerances in the design guarantee detection of the above levels, so the actual acceptance ranges are slightly larger. If the ARINC signal is out of the actual acceptance ranges, including the nulls, the chip rejects the data. DIFFERENTIAL AMPLIFIERS 429DI1 (A) COMPARATORS ONES OR 429DI2 (A) vcc 7 NULL GND ZEROES 429DI1 (B) OR 429DI2 (B) GND FIGURE 1. ARINC RECEIVER INPUT HOLT INTEGRATED CIRCUITS 3 HI-8581, HI-8589 FUNCTIONAL DESCRIPTION (cont.) RECEIVER LOGIC OPERATION Figure 2 is a block diagram showing each receiver’s logic. 4. The Word Gap timer samples the Null shift register every 10 input clocks (80 for low speed) after the last data bit of a valid reception. If the Null is present, the Word Gap counter is incremented. A count of 3 enables the next reception. RECEIVER PARITY BIT TIMING ARINC 429 specifies the following timing for received data: HIGH SPEED 100K BPS ± 1% 1.5 ± 0.5 µsec 1.5 ± 0.5 µsec 5 µsec ± 5% BIT RATE PULSE RISE TIME PULSE FALL TIME PULSE WIDTH LOW SPEED 12K -14.5K BPS 10 ± 5 µsec 10 ± 5 µsec 34.5 - 41.7 µsec The HI-8581 and HI-8589 accepts signals meeting these specifications and rejects signals outside these tolerances using the method described here: 1. The timing logic requires an accurate 1.0 MHz clock source. Less than 0.1% error is recommended. 2. The sampling shift registers are 10 bits long and must show three consecutive Ones, Zeros or Nulls to be considered valid data. To qualify data bits, One or Zero in the upper bits of the sampling shift register must be followed by Null in the lower bits within the data bit time. A word gap Null requires three consecutive Nulls in both the upper and lower bits of the sampling shift register. This guarantees the minimum pulse width. 3. Each data bit must follow its predecessor by not less than 8 samples and not more than 12 samples. In this manner the bit rate is checked. With exactly 1 MHz input clock frequency, the acceptable data bit rates are as follows: HIGH SPEED LOW SPEED 83K BPS 125K BPS 10.4K BPS 15.6K BPS DATA BIT RATE MIN DATA BIT RATE MAX The 32nd bit of received ARINC words stored in the receive FIFO is used as a Parity Flag indicating whether good Odd parity is received from the incoming ARINC word. Odd Parity Received The parity bit is reset to indicate correct parity was received and the resulting word is then written to the receive FIFO. Even Parity Received The receiver sets the 32nd bit to a “1”, indicating a parity error and the resulting word is then written to the receive FIFO. Therefore, the 32nd bit retrieved from the receiver FIFO will always be a “0” when valid (odd parity) ARINC 429 words are received. RETRIEVING DATA Once 32 valid bits are recognized, the receiver logic generates an End of Sequence (EOS). If the receiver decoder is enabled and the 9th and 10th ARINC bits match the control word program bits or if the receiver decoder is disabled, then EOS clocks the data ready flag flip flop to a "1", D/R1 or D/R2 (or both) will go low. The data flag for a receiver remains low until after both ARINC bytes from that receiver are retrieved. This is accomplished by first activating EN with SEL, the byte selector, low to retrieve the first byte and then activating EN with SEL high to retrieve the second byte. EN1 retrieves data from receiver 1 and EN2 retrieves data from receiver 2. If another ARINC word is received and a new EOS occurs before the two bytes are retrieved, the data is overwritten by the new word. TO PINS SEL MUX CONTROL EN 32 TO 16 DRIVER CLOCK OPTION CONTROL BIT BD14 D/R DECODER CONTROL BITS / CLOCK LATCH ENABLE CONTROL 32 BIT LATCH BITS 9 & 10 32 BIT SHIFT REGISTER DATA PARITY CHECK 32ND BIT BIT COUNTER AND END OF SEQUENCE BIT CLOCK EOS ONES CLK EOS WORD GAP WORD GAP TIMER SHIFT REGISTER BIT CLOCK END START NULL SHIFT REGISTER ZEROS SHIFT REGISTER FIGURE 2. SEQUENCE CONTROL ERROR ERROR DETECTION RECEIVER BLOCK DIAGRAM HOLT INTEGRATED CIRCUITS 4 CLOCK HI-8581, HI-8589 FUNCTIONAL DESCRIPTION (cont.) TRANSMITTER PARITY TRANSMITTER The parity generator counts the ONES in the 31-bit word. If the BD12 control word bit is set low, the 32nd bit transmitted will make parity odd. If the control bit is high, the parity is even. A block diagram of the transmitter section is shown in Figure 3. SELF TEST FIFO OPERATION If the BD05 control word bit is set low, the digital outputs of the transmitter are internally connected to the logic inputs of the receivers, bypassing the analog bus interface circuitry. Data to Receiver 1 is as transmitted and data to Receiver 2 is the complement. All data transmitted during self test is also present on the TXA(OUT) and TXB(OUT) line driver outputs. The FIFO is loaded sequentially by first pulsing PL1 to load byte 1 and then PL2 to load byte 2. The control logic automatically loads the 31 bit word in the next available position of the FIFO. If TX/R, the transmitter ready flag is high (FIFO empty), then 8 words, each 31 bits long, may be loaded. If TX/R is low, then only the available positions may be loaded. If all 8 positions are full, the FIFO ignores further attempts to load data. SYSTEM OPERATION DATA TRANSMISSION The two receivers are independent of the transmitter. Therefore, control of data exchanges is strictly at the option of the user. The only restrictions are: When ENTX goes high, enabling transmission, the FIFO positions are incremented with the top register loading into the data transmission shift register. Within 2.5 data clocks the first data bit appears at either TXA(OUT) or TXB(OUT). The 31 bits in the data transmission shift register are presented sequentially to the outputs in the ARINC 429 format with the following timing: ARINC DATA BIT TIME DATA BIT TIME NULL BIT TIME WORD GAP TIME HIGH SPEED 10 Clocks 5 Clocks 5 Clocks 40 Clocks 1. The received data may be overwritten if not retrieved within one ARINC word cycle. 2. The FIFO can store 8 words maximum and ignores attempts to load addition data if full. LOW SPEED 80 Clocks 40 Clocks 40 Clocks 320 Clocks 3. Byte 1 of the transmitter data must be loaded first. 4. Either byte of the received data may be retrieved first. Both bytes must be retrieved to clear the data ready flag. The word counter detects when all loaded positions are transmitted and sets the transmitter ready flag, TX/R, high. 5. After ENTX, transmission enable, goes high it cannot go low until TX/R, transmitter ready flag, goes high. Otherwise, one ARINC word is lost during transmission. BIT BD12 31 BIT PARALLEL LOAD SHIFT REGISTER BIT CLOCK PARITY GENERATOR DATA AND NULL TIMER SEQUENCER TXA(OUT) TXB(OUT) BIT AND WORD GAP COUNTER WORD CLOCK 8 X 31 FIFO LINE DRIVER START SEQUENCE ADDRESS WORD COUNTER AND FIFO CONTROL LOAD TX/R ENTX INCREMENT WORD COUNT FIFO LOADING SEQUENCER PL1 PL2 DATA BUS DATA CLOCK FIGURE 3. DATA CLOCK DIVIDER TRANSMITTER BLOCK DIAGRAM CONTROL BIT BD13 HOLT INTEGRATED CIRCUITS 5 CLK TX CLK HI-8581, HI-8589 FUNCTIONAL DESCRIPTION (cont.) HI-8581-10 and HI-8589-10 LINE DRIVER OPERATION The “-10” versions of the HI-8581 and HI-8589 products require a 10 Kohm resistor to be placed in series with each ARINC input without affecting the ARINC input thresholds. This option is especially useful in applications where external lightning protection is required. The line driver in the HI-8581 and HI-8589 is designed to directly drive the ARINC 429 bus. The two ARINC outputs (TXA(OUT) and TXB(OUT)) provide a differential voltage to produce a +10 volt One, a -10 volt Zero, and a 0 volt Null. Setting Control Register bit 13 to zero causes a slope of 1.5 ms on the ARINC outputs. A one in Control Register bit 13 causes a slope of 10 ms. Timing is set by onchip resistor and capacitor and tested to be within ARINC requirements. No additional hardware is required to control the slope. The HI-8581 has 37.5 ohms whereas the HI-8589 has 10 ohms in series with each line driver output. The HI-8589 is for applications where additional external series resistance is required, such as lightning protection. Each ARINC input pin must be connected to the ARINC bus through a 10 Kohm resistor in order for the chip to properly detect the correct ARINC levels. The typical 10 volt differential signal is translated and input to a window comparator and latch. The comparator levels are set so that with the external 10 Kohm resistors, they are just below the standard 6.5 volt minimum ARINC data threshold and just above the 2.5 volt maximum ARINC null threshold. REPEATER OPERATION Please refer to the Holt AN-300 Application Note for additional information and recommendations on lightning protection of Holt line drivers and line receivers. Repeater mode of operation allows a data word that has been received by the HI-8581 or HI-8589 to be placed directly into its FIFO for transmission. Repeater operation is similar to normal receiver operation. In normal operation, either byte of a received data word may be read from the receiver latches first by use of SEL input. During repeater operation however, the lower byte of the data word must be read first. This is necessary because, as the data is being read, it is also being loaded into the FIFO and the transmitter FIFO is always loaded with the lower byte of the data word first. Signal flow for repeater operation is shown in the Timing Diagrams section. POWER SUPPLY SEQUENCING The power supplies should be controlled to prevent large currents during supply turn-on and turn-off. The recommended sequence is V+ followed by Vcc, always ensuring that V+ is the most positive supply. The V- supply is not critical and can be asserted at any time. MASTER RESET (MR) On a Master Reset data transmission and reception are immediately terminated, all three FIFOs are cleared as are the FIFO flags at the device pins and in the Status Register. The Control Register is not affected by a Master Reset. TIMING DIAGRAMS DATA RATE - EXAMPLE PATTERN TXA(OUT) ARINC BIT TXB(OUT) DATA BIT 30 NULL DATA NULL DATA NULL WORD GAP BIT 32 BIT 31 LOADING CONTROL WORD VALID DATA BUS tCWSET tCWHLD CWSTR tCWSTR HOLT INTEGRATED CIRCUITS 6 BIT 1 NEXT WORD HI-8581, HI-8589 TIMING DIAGRAMS (cont.) RECEIVER OPERATON ARINC DATA BIT 31 DATA READY FLAG BIT 32 D/R tEND/R tD/R BYTE SELECT DON'T CARE SEL DON'T CARE tSELEN ENABLE BYTE ON BUS tSELEN tENSEL DON'T CARE tEN tENSEL EN tENEN tDATAEN tD/REN tDATAEN BYTE 2 VALID BYTE 1 VALID DATA BUS tENDATA tENDATA TRANSMITTER OPERATION BYTE 2 VALID BYTE 1 VALID DATA BUS tDWSET tDWSET tDWHLD tDWHLD PL1 tPL12 tPL PL2 tPL12 tPL tTX/R TX/R TRANSMITTING DATA PL2 tDTX/R tPL2EN TX/R tENTX/R ENTX tENDAT ARINC BIT DATA BIT 32 +5V ARINC BIT DATA BIT 2 ARINC BIT DATA BIT 1 +5V TXA(OUT) -5V +5V TXB(OUT) -5V -5V tfx +10V +10V 90% V DIFF (TXA(OUT) - TXB(OUT)) tfx 10% trx one level trx 10% zero level 90% null level -10V HOLT INTEGRATED CIRCUITS 7 HI-8581, HI-8589 TIMING DIAGRAMS (cont.) REPEATER OPERATION TIMING 429DI BIT 32 tEND/R D/R tD/R tD/REN tEN tENEN tEN EN tSELEN SEL tENSEL DON'T CARE DON'T CARE tENPL tSELEN tPLEN tENSEL PL1 tPLEN tENPL PL2 tTX/R TX/R tTX/REN tENTX/R ENTX tDTX/R tENDAT TXA(OUT) TXB(OUT) BIT 1 BIT 32 tNULL HOLT INTEGRATED CIRCUITS 8 HI-8581, HI-8589 ABSOLUTE MAXIMUM RATINGS -0.3V to +7V Power Dissipation at 25°C Plastic PLCC/PQFP +12.5V Ceramic J-LEAD CERQUAD -12.5V Supply Voltages Vcc V+ VVoltage at ARINC inputs -120V to +120V DC Current Drain per pin Voltage at any other pin -0.3V to Vcc +0.3V Storage Temperature Range: 260°C Operating Temperature Range: Soldering Temperature (Reflow) 1.5 W, derate 10mW/°C 1.0 W, derate 7mW/°C ±10mA -65°C to +150°C (Industrial) -40°C to +85°C NOTE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS Vcc = 5V ±5%, V+ = 10V , V- = -10V, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). LIMITS PARAMETER SYMBOL CONDITIONS VIH VIL VNUL Common mode voltage less than ±4V with respect to GND MIN TYP MAX 6.5 -13.0 -2.5 10.0 -10.0 0 13.0 -6.5 2.5 27 27 UNIT ARINC INPUTS Differential Input Voltage: (429DI1(A) to 429DI1(B); 429DI2(A) to 429DI2(B)) Input Resistance: ONE ZERO NULL Differential To GND To Vcc RI RG RH 12 12 12 Input Sink Input Source IIH IIL -450 Differential To GND To Vcc CI CG CH Input Voltage HI Input Voltage LO VIH VIL Input Sink Input Source IIH IIL Input Voltage HI Input Voltage LO VIH VIL Input Sink Input Source IIH IIL Input Current: Input Capacitance:(Guaranteed but not tested) (429DI1(A), 429DI1(B), 429DI2(A) & 429DI2(B)) V V V K K K 200 µA µA 20 20 20 pF pF pF 0.7 V V BI-DIRECTIONAL INPUTS Input Voltage: Input Current: 2.1 1.5 -1.5 µA µA OTHER INPUTS Input Voltage: Input Current: HOLT INTEGRATED CIRCUITS 9 3.5 -20 0.7 V V 10 µA HI-8581, HI-8589 DC ELECTRICAL CHARACTERISTICS (cont.) Vcc = 5V ±5%, V+ = 10V, V- = -10V, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). LIMITS PARAMETER SYMBOL CONDITIONS ARINC output voltage One or zero Null VDOUT VNOUT no load and magnitude at pin ARINC output current IOUT MIN TYP MAX 4.50 -0.25 5.00 5.50 0.25 UNIT ARINC OUTPUTS " " " " " " 80 V V mA OTHER OUTPUTS Output Voltage: Logic "1" Output Voltage Logic "0" Output Voltage VOH VOL IOH = -1.5mA IOL = 2.6mA 2.7 Output Current: (Bi-directional Pins) Output Sink Output Source IOL IOH VOUT = 0.4V VOUT = VCC - 0.4V 3.0 1.1 mA mA Output Current: (All Other Outputs) Output Sink Output Source IOL IOH VOUT = 0.4V VOUT = VCC - 0.4V 2.6 1.1 mA mA Output Capacitance: 0.4 CO 15 V V pF Operating Voltage Range VCC 4.75 5.25 V V+ 9.5 10.5 V V- -9.5 -10.5 V Operating Supply Current VCC ICC1 20 mA V+ IDD1 16 mA V- IEE1 16 mA HOLT INTEGRATED CIRCUITS 10 HI-8581, HI-8589 AC ELECTRICAL CHARACTERISTICS Vcc = 5V, V+=10V, V- = -10V, GND = 0V, TA = Oper. Temp. Range and fclk = 1MHz +0.1% with 60/40 duty cycle PARAMETER SYMBOL LIMITS MIN TYP MAX UNITS CONTROL WORD TIMING Pulse Width - CWSTR Setup - DATA BUS Valid to CWSTR HIGH Hold - CWSTR HIGH to DATA BUS Hi-Z tCWSTR tCWSET tCWHLD 80 50 10 ns ns ns RECEIVER TIMING Delay - Start ARINC 32nd Bit to D/R LOW: High Speed Low Speed tD/R tD/R 16 128 µs µs 200 ns ns Delay - D/R LOW to EN LOW Delay - EN LOW to D/R HIGH tD/REN tEND/R 0 Setup - SEL to EN LOW Hold - SEL to EN HIGH tSELEN tENSEL 10 10 Delay - EN LOW to DATA BUS Valid Delay - EN HIGH to DATA BUS Hi-Z tENDATA tDATAEN Pulse Width - EN1 or EN2 Spacing - EN HIGH to next EN LOW tEN tENEN 80 50 ns ns tPL 80 ns tDWSET tDWHLD 50 10 ns ns Spacing - PL1 or PL2 tPL12 0 ns Delay - PL2 HIGH to TX/R LOW tTX/R Spacing - PL2 HIGH to ENTX HIGH tPL2EN ns ns 50 100 30 ns ns FIFO TIMING Pulse Width - PL1 or PL2 Setup - DATA BUS Valid to PL HIGH Hold - PL HIGH to DATA BUS Hi-Z 840 ns TRANSMISSION TIMING Delay - 32nd ARINC Bit to TX/R HIGH tDTX/R Spacing - TX/R HIGH to ENTX LOW tENTX/R 0 µs 50 0 ns ns LINE DRIVER OUTPUT TIMING Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): High Speed Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): Low Speed Line driver transition differential times: (High Speed) (Low Speed) tENDAT tENDAT 25 200 µs µs high to low low to high tfx trx 1.0 1.0 1.5 1.5 2.0 2.0 µs µs high to low low to high tfx trx 5.0 5.0 10 10 15 15 µs µs Delay - EN LOW to PL LOW tENPL 0 ns Hold - PL HIGH to EN HIGH tPLEN 0 ns tTX/REN 0 ns tMR 400 ns REPEATER OPERATION TIMING Delay - TX/R LOW to ENTX HIGH MASTER RESET PULSE WIDTH ARINC DATA RATE AND BIT TIMING ± 1% HOLT INTEGRATED CIRCUITS 11 HI-8581, HI-8589 ADDITIONAL HI-8581 / HI-8589 PIN CONFIGURATIONS 7 8 9 10 11 12 13 14 15 16 17 429DI2(B) D/R1 D/R2 SEL EN1 EN2 BD15 BD14 BD13 BD12 BD11 7 8 9 10 11 12 13 14 15 16 17 39 ENTX 38 N/C 37 V+ 36 TXB(OUT) 35 TXA(OUT) 34 V33 GND 32 TX/R 31 PL2 30 PL1 29 BD00 BD10 BD09 BD08 BD07 BD06 GND BD05 BD04 BD03 BD02 BD01 BD10 BD09 BD08 BD07 BD06 GND BD05 BD04 BD03 BD02 BD01 18 19 20 21 22 23 24 25 26 27 28 39 ENTX 38 N/C 37 V+ 36 TXB(OUT) 35 TXA(OUT) 34 V33 GND 32 TX/R 31 PL2 30 PL1 29 BD00 18 19 20 21 22 23 24 25 26 27 28 429DI2(B) D/R1 D/R2 SEL EN1 EN2 BD15 BD14 BD13 BD12 BD11 6 429DI2(A) 5 429DI1(B) 4 429DI1(A) 3 VCC 2 N/C 1 MR 44 TXCLK 43 CLK 42 N/C 41 N/C 40 CWSTR 6 429DI2(A) 5 429DI1(B) 4 429DI1(A) 3 VCC 2 N/C 1 MR 44 TXCLK 43 CLK 42 N/C 41 N/C 40 CWSTR (See page 1 for the 44-Pin Plastic Quad Flat Pack (PQFP) pin configuration) HI-8581PJI / HI-8589PJI HI-8581PJT / HI-8589PJT 44-Pin Plastic J-Lead PLCC HI-8581CJI / HI-8589CJI HI-8581CJT / HI-8589CJT 44-Pin J-Lead CERQUAD ORDERING INFORMATION HI - 8581 xx x x - xx PART NUMBER INPUT SERIES RESISTANCE BUILT-IN REQUIRED EXTERNALLY No dash number 35 Kohm 0 -10 25 Kohm 10 Kohm PART NUMBER Blank LEAD FINISH Tin / Lead (Sn / Pb) Solder 100% Matte Tin (Pb-free, RoHS compliant) F PART NUMBER TEMPERATURE RANGE FLOW BURN IN I -40°C TO +85°C I No T -55°C TO +125°C T No PART NUMBER PACKAGE DESCRIPTION CJ 44 PIN CERQUAD J LEAD (44U) not available Pb-free PJ 44 PIN PLASTIC J LEAD PLCC (44J) PQ 44 PIN PLASTIC QUAD FLAT PACK, PQFP (44PQS) PART NUMBER OUTPUT SERIES RESISTANCE BUILT-IN REQUIRED EXTERNALLY 8581 37.5 Ohms 0 8589 10 Ohms 27.5 Ohms HOLT INTEGRATED CIRCUITS 12 HI-8581, HI-8589 REVISION HISTORY P/N DS8581 Rev J Date Description of Change 08/06/13 Clarified description of receiver parity. Updated solder temp to reflow 260 only. Updated PQFP package. Update Voltage at ARINC input pins from +/-29V to +/-120V. Updated last paragraph under Retrieving Data (not visible in previous version). HOLT INTEGRATED CIRCUITS 13 HI-8581, HI-8589 PACKAGE DIMENSIONS inches (millimeters) 44-PIN PLASTIC PLCC Package Type: 44J PIN NO. 1 PIN NO. 1 IDENT .045 x 45° .045 x 45° .050 (1.27) BSC .690 ±.005 (17.526 ±.127) SQ. .653 ±.004 (16.586 ±.102) SQ. .031±.005 (.787 ±.127) .017 ±.004 (.432 ±.102) See Detail A .010 ± .001 (.254 ± .03) .173 ±.008 (4.394 ±.203) .020 (.508) min .610 ±.020 (15.494±.508) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) DETAIL A R .035±.010 (.889 ±.254) inches (millimeters) 44-PIN J-LEAD CERQUAD Package Type: 44U 2 1 44 43 .620 ±.012 (15.748 ±.305) .688 ±.005 max (17.475 ±.127) SQ. .650 ±.010 (16.510 ±.254) SQ. .200 max (5.080) .039 ±.005 (.990 ±.127) .019 ±.002 (.483 ± .051) .050 BSC (1.270) .100 ±.007 (2.540 ±.178) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) HOLT INTEGRATED CIRCUITS 14 HI-8581, HI-8589 PACKAGE DIMENSIONS inches (millimeters) 44-PIN PLASTIC QUAD FLAT PACK (PQFP) Package Type: 44PMQS .009 MAX. (.23) .0315 BSC (.80) .394 ± .004 (10.0 ± .10) SQ. .520 ± .010 (13.20 ± .25) SQ. .014 ± .003 (.37 ± .08) .035 ± .006 (.88 ± .15) .012 R MAX. (.30) See Detail A .096 MAX. (2.45) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) .079 ± .008 (2.0 ± .20) .005 R MIN. Detail A (.13) HOLT INTEGRATED CIRCUITS 15 0° £ Q £ 7°