HI-8282A ARINC 429 SERIAL TRANSMITTER AND DUAL RECEIVER FEATURES The HI-8282A is a silicon gate CMOS device for interfacing the ARINC 429 serial data bus to a 16-bit parallel data bus. Two receivers and an independent transmitter are provided. 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. Additional interface circuitry such as the Holt HI-8585, HI-8586 or HI-3182 is required to translate the 5 volt logic outputs to ARINC 429 drive 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. Timing of all the circuitry begins with the master clock input, CLK. For ARINC 429 applications, the master clock frequency is 1 MHz. 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-8282A examines 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. 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. APPLICATIONS ! ARINC specification 429 compliant ! Alternate source to Intersil HS-3282 in all ARINC 429 applications ! Small footprint 44-pin QFP package option ! 16-Bit parallel data bus ! Direct receiver interface to ARINC bus ! Timing control 10 times the data rate ! Selectable data clocks ! Automatic transmitter data timing ! 8 word transmit FIFO ! Receiver error rejection per ARINC specification 429 ! Self test mode ! Parity functions ! Low power, single 5 volt supply ! Industrial & full military temperature ranges PIN CONFIGURATION (Top View) - N/C - 429DI2(B) - 429DI2(A) - 429DI1(B) - 429DI1(A) - VCC - N/C - MR - TXCLK - CLK - N/C GENERAL DESCRIPTION 44 43 42 41 40 39 38 37 36 35 34 January 2006 N/C - 1 D/R1 - 2 D/R2 - 3 SEL - 4 EN1 - 5 EN2 - 6 BD15 - 7 BD14 - 8 BD13 - 9 BD12 - 10 BD11 - 11 HI-8282APQI HI-8282APQT HI-8282APQM 33 - N/C 32 - N/C 31 - CWSTRX 30 - ENTX 29 - 429DO 28 - 429DO 27 - TX/R 26 - PL2 25 - PL1 24 - BD00 23 - BD01 N/C - 12 BD10 - 13 BD09 - 14 BD08 - 15 BD07 - 16 BD06 - 17 GND - 18 BD05 - 19 BD04 - 20 BD03 - 21 BD02 - 22 ! Avionics data communication ! Serial to parallel conversion ! Parallel to serial conversion 44-Pin Plastic Quad Flat Pack (PQFP) (See page 10 for additional Package Pin Configurations) (DS8282A Rev. E) HOLT INTEGRATED CIRCUITS www.holtic.com 01/06 HI-8282A PIN DESCRIPTION SYMBOL FUNCTION DESCRIPTION VCC POWER 429DI1 (A) INPUT +5V ±5% ARINC receiver 1 positive input 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 0V Data Bus 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 PL1 INPUT Latch enable for byte 1 entered from data bus to transmitter FIFO. PL2 INPUT TX/R OUTPUT Latch enable for byte 2 entered from data bus to transmitter FIFO. Must follow PL1. Transmitter ready flag. Goes low when ARINC word loaded into FIFO. Goes high after transmission and FIFO empty. 429DO OUTPUT "ONES" data output from transmitter. 429DO OUTPUT "ZEROES" data output from transmitter. 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-8282A 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 The HI-8282A contains 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, an internal connection is made passing 429DO and 429DO to the receiver logic inputs 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 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 ARINC BUS INTERFACE 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 STATE ONE NULL ZERO BD11 - BD12 INVERT XMTR PARITY 1 = ENABLE Logic 0 enables normal odd parity and Logic 1 enables even parity output in transmitter 32nd bit XMTR DATA CLK SELECT 0 = ÷10 1 = ÷80 CLK is divided either by 10 or 80 to obtain XMTR data clock BD13 BD14 - RCVR DTA CLK SELECT vcc 0 = ÷10 1 = ÷80 CLK is divided either by 10 or 80 to obtain RCVR data clock DIFFERENTIAL AMPLIFIERS 429DI1(A) OR 429DI2(A) COMPARATORS ONES vcc GND NULL ZEROES 429DI1(B) OR 429DI2(B) GND FIGURE 1. ARINC RECEIVER INPUT 2 3 4 5 6 7 8 BYTE 2 BDO6 If Receiver 2 Decoder is enabled, then ARINC bit 10 must match this bit 1 THE RECEIVERS Figure 1 shows the input circuit for each receiver. The ARINC 429 specification requires the following detection levels: DIFFERENTIAL VOLTAGE +6.5 Volts to +13 Volts +2.5 Volts to -2.5 Volts -6.5 Volts to -13 Volts The HI-8282A guarantees recognition of these levels with a common mode Voltage with respect to GND less than ±5V 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. HI-8282A-10 The HI-8282A-10 option is similar to the HI-8282A with the exception that it allows an external 10 Kohm resistor to be added in series with each ARINC input without affecting the ARINC input thresholds. This option is especially useful in applications where lightning protection circuitry is also required. Each side of the ARINC bus must be connected through a 10 Kohm series resistor in order for the chip to 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 V minimum ARINC data threshold and just above the 2.5 V maximum ARINC null threshold. The receivers of the HI-8282A-10 when used with external 10 Kohm resistors will withstand DO-160D, Level 3, waveforms 3, 4 and 5A. No additional lightning protection circuit is necessary. Please refer to the Holt AN-300 Application Note for additional information and recommendations on lightning protection of Holt Line Drivers and Receivers. HOLT INTEGRATED CIRCUITS 3 HI-8282A FUNCTIONAL DESCRIPTION (cont.) RECEIVER LOGIC OPERATION 3. Each data bit must follow its predecessor by not less than 8 samples and no more than 12 samples. In this manner the bit rate is checked. With exactly 1MHz input clock frequency, the acceptable data bit rates are as follows: Figure 2 shows a block diagram of the logic section of each receiver. DATA BIT RATE MIN DATA BIT RATE MAX BIT TIMING The ARINC 429 specification contains the following timing specification for the received data: HIGH SPEED LOW SPEED 100K BPS ± 1% 12K -14.5K BPS BIT RATE 10 ± 5 µsec PULSE RISE TIME 1.5 ± 0.5 µsec 10 ± 5 µsec PULSE FALL TIME 1.5 ± 0.5 µsec 5 µsec ± 5% 34.5 to 41.7 µsec PULSE WIDTH HIGH SPEED LOW SPEED 83K BPS 125K BPS 10.4K BPS 15.6K BPS 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 will enable the next reception. RECEIVER PARITY The receiver parity circuit counts Ones received, including the parity bit, ARINC bit 32. If the result is odd, then "0" will appear in the 32nd bit. The HI-8282A accepts signals that meet these specifications and rejects outside the tolerances. The way the logic operation achieves this is described below: 1. Key to the performance of the timing checking logic is an accurate 1MHz 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. Additionally, for data bits, the One or Zero in the upper bits of the sampling shift registers must be followed by a Null in the lower bits within the data bit time. For a Null in the word gap, three consecutive Nulls must be found in both the upper and lower bits of the sampling shift register. In this manner the minimum pulse width is guaranteed. 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 will remain low until after both ARINC bytes from that receiver are retrieved. This is accomplished by activating EN with SEL, the byte selector, low to retrieve the first byte and 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 / 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 CLOCK EOS WORD GAP WORD GAP TIMER SHIFT REGISTER BIT CLOCK END START NULL SHIFT REGISTER ZEROS SHIFT REGISTER SEQUENCE CONTROL ERROR ERROR DETECTION FIGURE 2. RECEIVER BLOCK DIAGRAM HOLT INTEGRATED CIRCUITS 4 CLOCK HI-8282A FUNCTIONAL DESCRIPTION (cont.) 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. TRANSMITTER SELF TEST A block diagram of the transmitter section is shown in Figure 3. If the BD05 control word bit is set low, 429DO or 429DO are internally connected to the receivers inputs, bypassing the interface circuitry. Data to Receiver 1 is as transmitted and data to Recevier 2 is the complement. 429DO and 429DO outputs remain active during self test. FIFO OPERATION 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 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: DATA TRANSMISSION 1. The received data may be overwritten if not retrieved within one ARINC word cycle. 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 429DO or 429DO. 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 2. The FIFO can store 8 words maximum and ignores attempts to load addition data if full. 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. LOW SPEED 80 Clocks 40 Clocks 40 Clocks 320 Clocks The word counter detects when all loaded positions are transmitted and sets the transmitter ready flag, TX/R, high. TRANSMITTER PARITY The parity generator counts the ONES in the 31-bit word. If the 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. MASTER RESET (MR) On a Master Reset data transmission and reception are immediately terminated, the transmit FIFO and receivers cleared as are the transmit and receive flags. The Control Register is not affected by a Master Reset. BIT BD12 31 BIT PARALLEL LOAD SHIFT REGISTER BIT CLOCK DATA AND NULL TIMER SEQUENCER PARITY GENERATOR 429DO BIT AND WORD GAP COUNTER WORD CLOCK 8 X 31 FIFO 429DO START SEQUENCE ADDRESS WORD COUNTER AND FIFO CONTROL LOAD TX/R ENTX INCREMENT WORD COUNT FIFO LOADING SEQUENCER DATA BUS DATA CLOCK FIGURE 3. DATA CLOCK DIVIDER TRANSMITTER BLOCK DIAGRAM HOLT INTEGRATED CIRCUITS 5 CONTROL BIT BD13 PL1 PL2 CLK TX CLK HI-8282A FUNCTIONAL DESCRIPTION (cont.) REPEATER OPERATION The repeater mode of operation allows a data word that has been received by the HI-8282A to be placed directly into its FIFO for transmission. After a 32-bit word has been shifted into the receiver shift register, the D/R flag will go low. A logic "0" is placed on the SEL line and EN is strobed. This is the same procedure as for normal receiver operation and it places the lower byte (16) of the data word on the data bus. By strobing PL1 at the same time as EN, the byte will also be placed into the transmitter FIFO. SEL is then taken high and EN is strobed again to place the upper byte of the data word on the data bus. By strobing PL2 at the same time as EN, the second byte will also be placed into the FIFO. The data word is now ready to be transmitted according to the parity programmed into the control word register. 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. TIMING DIAGRAMS DATA RATE - EXAMPLE PATTERN 429DO ARINC BIT 429DO DATA NULL DATA DATA NULL BIT 1 NEXT WORD WORD GAP BIT 32 BIT 31 BIT 30 NULL LOADING CONTROL WORD VALID DATA BUS tCWSET tCWHLD CWSTR tCWSTR RECEIVER OPERATON ARINC DATA BIT 31 DATA READY FLAG BIT 32 D/R tEND/R tD/R BYTE SELECT SEL DON'T CARE DON'T CARE tSELEN ENABLE BYTE ON BUS tENSEL DON'T CARE tEN tSELEN tENSEL EN tENEN tDATAEN tD/REN tDATAEN BYTE 1 VALID DATA BUS tENDATA HOLT INTEGRATED CIRCUITS 6 BYTE 2 VALID tENDATA HI-8282A TIMING DIAGRAMS (cont.) 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 ENTX ARINC BIT tENDAT 429DO or 429DO tENTX/R DATA BIT 1 DATA BIT 32 DATA BIT 2 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 BIT 1 429DO BIT 32 tNULL HOLT INTEGRATED CIRCUITS 7 HI-8282A ABSOLUTE MAXIMUM RATINGS Supply Voltage Vcc -0.3V to +7V Power Dissipation Voltage at ARINC Inputs -29V to +29V Voltage at any other pin -0.3V to Vcc +0.3V Operating Temperature Range: (Industrial) (Military) -40°C to +85°C -55°C to +125°C Storage Temperature Range: -65°C to +150°C DC Current Drain per input pin 10mA 500mW 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%, GND = 0V, TA = Operating Temperature Range (unless otherwise specified). PARAMETER ARINC INPUTS - CONDITIONS SYMBOL LIMITS UNIT MIN TYP MAX 6.5 -13.0 -2.5 10.0 -10.0 0 13.0 -6.5 2.5 27 27 429DI1 (A), 429DI1 (B), 429DI2 (A) & 429DI2 (B) Differential Input Voltage: ONE ZERO NULL Input Resistance: Input Current: VIH VIL VNUL ARINC Input Pins: Common mode voltage less than ±5V with respect to GND 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 Capacitance: (Guaranteed but not tested) Pins 2 to 3, 4 to 5 V V V KW KW KW 200 µA µA 20 20 20 pF pF pF 0.7 V V BI-DIRECTIONAL INPUTS - BD00 through BD15 Input Voltage: Input Current: 2.1 1.5 -1.5 µA µA ALL OTHER INPUTS - SEL, EN1, EN2, PL1, PL2, ENTX, CWSTR, CLK & MR Input Voltage: Input Current: Input Voltage HI Input Voltage LO VIH VIL Input Sink Input Source IIH IIL 3.5 0.7 10 -20 V V µA µA OUTPUTS - D/R1, D/R2, BD00 through BD15, TX/R, 429DO, 429DO & TX CLK 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 V V CO 15 pF Standby Supply Current: ICC1 20 mA Operating Supply Current: ICC2 20 mA SUPPLY INPUT - VCC HOLT INTEGRATED CIRCUITS 8 HI-8282A AC ELECTRICAL CHARACTERISTICS Vcc = 5V, GND = 0V, TA = Operating Temperature 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 130 130 0 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 L0W Delay - EN LOW to D/R HIGH tD/REN tEND/R 0 Setup - SEL to EN L0W Hold - SEL to EN HIGH tSELEN tENSEL 20 20 Delay - EN L0W 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 L0W tEN tENEN 200 50 ns ns tPL 200 ns tDWSET tDWHLD 110 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 200 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 - ENTX HIGH to TXA(OUT) or TXB(OUT): High Speed Delay - ENTX HIGH to TXA(OUT) or TXB(OUT): Low Speed 0 tENDAT tENDAT µs 25 200 µs µs 400 ns Delay - 32nd ARINC Bit to TX/R HIGH tDTX/R Spacing - TX/R HIGH to ENTX L0W tENTX/R 0 ns Delay - EN LOW to PL LOW tENPL 0 ns Hold - PL HIGH to EN HIGH tPLEN 0 ns tTX/REN 0 ns tMR 200 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 9 HI-8282A ADDITIONAL HI-8282A PIN CONFIGURATIONS (See page 1 for the 44-pin Plastic Quad Flat Pack ) 44-PIN PLASTIC PLCC 44-PIN J-LEAD CERQUAD HI-8282APJI HI-8282APJT HI-8282APJM 44-PIN CERAMIC LCC HI-8282ACJI HI-8282ACJT HI-8282ACJM 40-PIN CERAMIC SIDE BRAZED DIP Vcc 1 40 NC (REC. 1 INPUT) 429DI1(A) 2 39 MR (REC.1 INPUT) 429DI1(B) 3 38 TX CLK (XMIT CLOCK OUT) (REC. 2 INPUT) 429DI2(A) 4 37 CLK (REC. 2 INPUT) 429DI2(B) 5 36 NC (REC.1 DATA FLAG) D/R1 6 35 NC (REC.2 DATA FLAG) D/R2 7 34 CWSTR (CONTROL WORD STROBE) 8 33 ENTX (REC. BYTE SELECT) SEL (MASTER RESET) (MASTER CLK IN) (ENABLE XMIT) (REC. 1 OUTPUT ENABLE) EN1 9 32 429DO (XMIT DATA) (REC. 2 OUTPUT ENABLE) EN2 10 31 429DO (XMIT DATA) BD15 11 30 TX/R BD14 12 29 PL2 (XMIT BYTE 2 LE) BD13 13 28 PL1 (XMIT BYTE 1 LE) BD12 14 27 BD00 HI-8282ACLI HI-8282CLT HI-8282CLM BD11 15 26 BD01 BD10 16 25 BD02 BD09 17 24 BD03 BD08 18 23 BD04 BD07 19 22 BD05 20 21 GND BD06 (XMIT READY FLAG) HI-8282ACDI / CDT / CDM HOLT INTEGRATED CIRCUITS 10 HI-8282A ORDERING INFORMATION HI - 8282A Cx x -xx (Ceramic) PART NUMBER INPUT SERIES RESISTANCE BUILT-IN REQUIRED EXTERNALLY No dash number 35 Kohm 0 -10 (Note 1) 25 Kohm 10 Kohm PART NUMBER TEMPERATURE RANGE FLOW BURN IN LEAD FINISH I -40°C TO +85°C I NO Gold T -55°C TO +125°C T NO Gold M -55°C TO +125°C M YES PART NUMBER Tin / Lead (Sn / Pb) Solder PACKAGE DESCRIPTION CD 40 PIN CERAMIC SIDE BRAZED DIP CJ 44 PIN J-LEAD CERQUAD CL 44 PIN CERAMIC LEADLESS CHIP CARRIER HI - 8282A Px x x -xx (Plastic) PART NUMBER INPUT SERIES RESISTANCE BUILT-IN REQUIRED EXTERNALLY No dash number 35 Kohm 0 -10 (Note 1) 25 Kohm 10 Kohm PART NUMBER Blank F PART NUMBER LEAD FINISH Tin / Lead (Sn / Pb) Solder 100% Matte Tin (Pb-free, RoHS compliant) TEMPERATURE RANGE FLOW BURN IN I -40°C TO +85°C I NO T -55°C TO +125°C T NO M -55°C TO +125°C M YES PART NUMBER PACKAGE DESCRIPTION PJ 44 PIN PLASTIC J-LEAD PLCC (Note 2) PQ 44 PIN PLASTIC QUAD FLAT PACK (Note 2) NOTES: 1. The -10 configuration requires an external 10Kohm resistor in series with each ARINC input to guarantee specified voltage thresholds. 2. Both the 44-pin J-lead PLCC package and the 44-pin PQFP package are rated as Moisture Sensitivity Level (MSL) 1 and do not require special moisture handling precautions. HOLT INTEGRATED CIRCUITS 11 HI-8282A PACKAGE DIMENSIONS inches (millimeters) 40-PIN CERAMIC SIDE-BRAZED DIP Package Type: 40C 2.020 MAX (51.308 MAX) .595 ±.010 (15.113 ±.254) .610 ±.010 (15.494 ±.254) .050 TYP (1.270 TYP) .225 MAX (5.715 MAX) .125 MIN (3.175 MIN) .085 ±.009 (2.159 ±.229) .018 TYP (.457 TYP) .100 BSC (2.540 BSC) .600 ±.010 (15.240 ±.254) .010 +.002/-.001 (.254 +.051/-.025) 44-PIN J-LEAD CERQUAD Package Type: 44U 2 1 44 43 .688 ± .005 (17.475 ± .127) MAX. SQ. .650 ±.010 (16.510 ±.254) SQ. .200 (5.080)MAX. .039 ± .005 (.990 ± .127) .019 ± .002 (.483 ± .051) .050 TYP. (1.270) .100 ± .007 (2.540 ± .178) HOLT INTEGRATED CIRCUITS 12 .620 ± .012 (15.748 ± .305) HI-8282A 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 ± .005 (1.27 ± .127) .690 ± .005 (17.526 ± .127) SQ. .653 ± .004 (16.586 ± .102) SQ. .031± .005 (.787 ± .127) .017 ± .004 (.432 ± .102) SEE DETAIL A .009 .011 .172 ± .008 (4.369 ± .203) DETAIL A .610 ± .020 (15.494± .508) .015 ± .002 (.381 ± .051) .020 MIN (.508 MIN) R .025 .045 44-PIN PLASTIC QUAD FLAT PACK (PQFP) Package Type: 44PQS .007 MAX. (.17) .0315 BSC (.80 BSC) .394 ± .004 (10.0 ± .10) SQ. .547 ± .010 (13.90 ± .25) SQ. .014 ± ..002 (.35 ± .05) .035 +.006 / -.004 (.88 +.15 / -.10) .012 TYP. (.30 R) See Detail A .097 MAX. (2.45) .079 +.004 / -.006 (2.00 +.10 / -.15) .008 TYP. (.20 R) HOLT INTEGRATED CIRCUITS 13 0° £ Q £7° Detail A HI-8282A PACKAGE DIMENSIONS inches (millimeters) 44-PIN CERAMIC LEADLESS CHIP CARRIER Package Type: 44S .020 INDEX (.508 INDEX) PIN 1 .040 x 45° 3 PLCS (1.016 x 45° 3 PLCS) .075 ± .004 (1.905 ± .101) .050 ± .005 (1.270 ± .127) .651 ± .011 (16.535 ± .279) SQ. .050 BSC (1.270 BSC) .025 ± .003 (.635 ± .076) .009R ± .006 (.229R ± .152) .092 ± .028 (2.336 ± .711) HOLT INTEGRATED CIRCUITS 14 .326 ± .006 (8.280 ± .152) PIN 1