HS-3282 REFERENCE AN400 CMOS ARINC Bus Interface Circuit March 1997 Features Description • ARlNC Specification 429 Compatible The HS-3282 is a high performance CMOS bus interface circuit that is intended to meet the requirements of ARINC Specification 429, and similar encoded, time multiplexed serial data protocols. This device is intended to be used with the HS-3182, a monolithic Dl bipolar differential line driver designed to meet the specifications of ARINC 429. The ARINC 429 bus interface circuit consists of two (2) receivers and a transmitter operating independently as shown in Figure 1. The two receivers operate at a frequency that is ten (10) times the receiver data rate, which can be the same or different from the transmitter data rate. Although the two receivers operate at the same frequency, they are functionally independent and each receives serial data asynchronously. The transmitter section of the ARINC bus interface circuit consists mainly of a First-In First-Out (FIFO) memory and timing circuit. The FIFO memory is used to hold up to eight (8) ARINC data words for transmission serially. The timing circuit is used to correctly separate each ARINC word as required by ARINC Specification 429. Even though ARINC Specification 429 specifies a 32-bit word, including parity, the HS-3282 can be programmed to also operate with a word length of 25 bits. The incoming receiver data word parity is checked, and a parity status is stored in the receiver latch and output on Pin BD08 during the 1st word. [A logic “0” indicates that an odd number of logic “1” s were received and stored; a logic “1” indicates that an even number of logic “1”s were received and stored]. In the transmitter the parity generator will generate either odd or even parity depending upon the status of PARCK control signal. A logic “0” on BD12 will cause odd parity to be used in the output data stream. • Data Rates of 100 Kilobits or 12.5 Kilobits • Separate Receiver and Transmitter Section • Dual and Independent Receivers, Connecting Directly to ARINC Bus • Serial to Parallel Receiver Data Conversion • Parallel to Serial Transmitter Data Conversion • Word Lengths of 25 or 32 Bits • Parity Status of Received Data • Generate Parity of Transmitter Data • Automatic Word Gap Timer • Single 5V Supply • Low Power Dissipation • Full Military Temperature Range Ordering Information PACKAGE CERDIP TEMP. RANGE -55oC to +125oC SMD# CLCC SMD# PART NUMBER PKG. NO. HS1-3282-8 F40.6 5962-8688001QA F40.6 -40oC to +85oC HS4-3282-9+ J44.A -55oC to +125oC HS4-3282-8 J44.A 5962-8688001XA J44.A Versatility is provided in both the transmitter and receiver by the external clock input which allows the bus interface circuit to operate at data rates from 0 to 100 kilobits. The external clock must be ten (10) times the data rate to insure no data ambiguity. The ARINC bus interface circuit is fully guaranteed to support the data rates of ARINC specification 429 over both the voltage (±5%) and full military temperature range. It interfaces with UL, CMOS or NMOS support circuitry, and uses the standard 5-volt VCC supply. CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999 5-183 File Number 2964.2 HS-3282 Pinouts HS-3282 (CERDIP) TOP VIEW VDD 1 40 NC 429DI1(A) 2 39 MR 429DI1(B) 3 38 TX CLK 429DI2(A) 4 37 CLK 429DI2(B) 5 36 NC D/R1 6 35 NC D/R2 7 34 CWSTR SEL 8 33 ENTX EN1 9 32 429D0 EN2 10 31 429D0 BD15 11 30 TX/R BD14 12 29 PL2 BD13 13 28 PL1 BD12 14 27 BD00 BD11 15 26 BD01 BD10 16 25 BD02 BD09 17 24 BD03 BD08 18 23 BD04 BD07 19 22 BD05 BD06 20 21 GND NC CLK 1 44 43 42 41 40 MR 2 TXCLK 3 NC 4 VDD 429DI2(A) 5 429DI1(B) 429DI2(B) 6 429DI1(A) NC HS-3282 (CLCC) TOP VIEW NC 7 39 NC D/R1 8 38 NC D/R2 9 37 CWSTR SEL 10 36 ENTX EN1 11 35 429D0 EN2 12 34 429D0 BD15 13 33 TX/R BD14 14 32 PL2 BD13 15 31 PL1 BD12 16 30 BD00 BD11 17 29 BD01 5-184 BD02 BD03 BD04 BD05 GND BD06 BD07 BD08 BD09 NC BD10 18 19 20 21 22 23 24 25 26 27 28 HS-3282 Pin Description PIN SYMBOL SECTION DESCRIPTION 1 VCC Recs/Trans 2 429 DI1 (A) Receiver ARlNC 429 data input to Receiver 1. 3 429 DI1 (B) Receiver ARlNC 429 data input to Receiver 1. 4 429 Dl2 (A) Receiver ARINC 429 data input to Receiver 2. 5 429 DI2 (B) Receiver ARINC 429 data input to Receiver 2. 6 D/R1 Receiver Device ready flag output from Receiver 1 indicating a valid data word is ready to be fetched. 7 D/R2 Receiver Device ready flag output from Receiver 2 indicating a valid data word is ready to be fetched. 8 SEL Receiver Bus Data Selector - Input signal to select one of two 16-bit words from either Receiver 1 or 2. 9 EN1 Receiver Input signal to enable data from Receiver 1 onto the data bus. 10 EN2 Receiver Input signal to enable data from Receiver 2 onto the data bus. 11 BD15 Recs/Trans Bi-directional data bus for fetching data from either of the Receivers, or for loading data into the Transmitter memory or control word register. See Control Word Table for description of Control Word bits. 12 BD14 Recs/Trans See Pin 11. 13 BD13 Recs/Trans See Pin 11. 14 BD12 Recs/Trans See Pin 11. 15 BD11 Recs/Trans See Pin 11. 16 BD10 Recs/Trans See Pin 11. 17 BD09 Recs/Trans See Pin 11. 18 BD08 Recs/Trans See Pin 11. 19 BD07 Recs/Trans See Pin 11. 20 BD06 Recs/Trans See Pin 11. 21 GND Recs/Trans Circuit Ground. 22 BD05 Recs/Trans See Pin 11. 23 BD04 Recs/Trans See Pin 11. Control Word function not applicable. 24 BD03 Recs/Trans See Pin 11. Control Word function not applicable. 25 BD02 Recs/Trans See Pin 11. Control Word function not applicable. 26 BD01 Recs/Trans See Pin 11. Control Word function not applicable. 27 BD00 Recs/Trans See Pin 11. Control Word function not applicable. 28 PL1 Transmitter Parallel load input signal loading the first 16-bit word into the Transmitter memory. 29 PL2 Transmitter Parallel load input signal loading the first 16-bit word into the Transmitter memory and initiates data transfer into the memory stack. 30 TX/R Transmitter Transmitter flag output to indicate the memory is empty. Supply pin 5 volts ±5%. 5-185 HS-3282 Pin Description (Continued) PIN SYMBOL SECTION DESCRIPTION 31 429D0 Transmitter Data output from Transmitter 32 429D0 Transmitter Data output from Transmitter. 33 ENTX Transmitter Transmitter Enable input signal to initiate data transmission from FIFO memory. 34 CWSTR Recs/Trans Control word input strobe signal to latch the control word from the databus into the control word register. 35 - - No connection. Must be left open. 36 - - No connection. Must be left open or tied low but never tied high. 37 CLK Recs/Trans External clock input. May be either ten (10) or eighty (80) times the data rate. If using both ARINC data rates it must be ten (10) times the highest data rate, (typically 1MHz). 38 TXCLK Transmitter Transmitter Clock output. Delivers a clock frequency equal to the transmitter data rate. 39 MR Recs/Trans Master Reset. Active low pulse used to reset FIFO, bit counters, gap timer, word count signal, TX/R and various other flags and controls. Master reset does not reset the control word register. Usually only used on Power-Up or System Reset. 40 - - No Connection. Pinout 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 NC NC 5-186 NC HS-3282 Operational Description The HS-3282 is designed to support ARINC Specification 429 and other serial data protocols that use a similar format by collecting the receiving, transmitting, synchronizing, timing and parity functions on a single, low power LSl circuit. It goes beyond the ARlNC requirements by providing for either odd or even parity, and giving the user a choice of either 25 or 32-bit word lengths. The receiver and transmitter sections operate independently of each other. The serial-toparallel conversion required of the receiver and the parallelto-serial conversion requirements of the transmitter have been incorporated into the bus interface circuit. Provisions have been made through the external clock input to provide data rate flexibility. This requires an external clock that is 10 times the data rate. To obtain the flexibility discussed above, a number of external control signals are required, To reduce the pin count requirements, an internal control word register is used. The control word is latched from the data bus into the register by the Control Word Strobe (CWSTR) signal going to a logic “1”. Eleven (11) control functions are used, and along with the Bus Data (BD) line are listed below: Control Word PIN NAME SYMBOL FUNCTION BD05 SLFTST Connects the self test signal from the transmitter directly to the receiver shift registers, bypassing the input receivers. Receiver 1 receives Data True and Receiver 2 receives Data Not. Note that the transmitter output remains active. (Logic “0” on SLFTST Enables Self Test). BD06 SDENB1 Signal to Activate the Source/Destination (S/D) Decoder for Receiver 1. (Logic “1” activates S/D Decoder). BD07 X1 If SDENB1 = “1” then this bit is compared with ARlNC Data Bit #9. If Y1 also matches (see Y1), the word will be accepted by the Receiver 1. If SDENB1 = “0” this bit becomes a don’t care. BD08 Y1 If SDENBI = “1” then this bit is compared with ARINC Data Bit #10. If X1 also matches (see X1), the word will be accepted by the Receiver 1. If SDENB1 = “0” this bit becomes a don’t care. BD09 SDENB2 BD10 X2 If SDENB2 = “1” then this bit is compared with ARlNC Data Bit #9. If Y2 also matches (see Y2), the word will be accepted by the Receiver 2. If SDENB2 = “0” this bit becomes a don’t care. BD11 Y2 If SDENB2 = “1” then this bit is compared with ARINC Data Bit #10. If X2 also matches (see X2), the word will be accepted by the Receiver 2. If SDENB2 = “0” this bit becomes a don’t care. BD12 PARCK Signal used to invert the transmitter parity bit for test of parity circuits. Logic “0” selects normal odd parity. Logic “I” selects even parity. BD13 TXSEL Selects high or low Transmitter data rate. If TXSEL = “0” then transmitter data rate is equal to the clock rate divided by ten (10). If TXSEL = “1” then transmitter data rate is equal to the clock rate divided by eighty (80). BD14 RCVSEL Selects high or low Receiver data rate. If RCVSEL = “0” then the received data rate should be equal to the clock rate divided by ten (10), if RCVSEL = “1 “then the received data rate should be equal to the clock rate divided by eighty (80). BD15 WLSEL Selects word length. If WLSEL = “0” a 32-bit word format will be selected. If WLSEL = “1” a 25-Bit word format will be selected. Signal to activate the Source/Destination (S/D) Decoder for Receiver 2. (Logic “1” activates S/D Decoder). ARlNC 429 DATA FORMAT as input to the Receiver and output from the Transmitter is as follows: TABLE 1. ARINC 429 32-BIT DATA FORMAT This format is shuffled when seen on the sixteen bidirectional input/outputs. The format shown below is used from the receivers and input to the transmitter: TABLE 2A. WORD 1 FORMAT ARINC BIT # FUNCTION 1-8 Label 9 - 10 SDl or Data BI-DIRECTIONAL BIT # FUNCTION ARINC BlT # 11 LSB 15, 14 Data 13, 12 12 - 27 Data 13 LSB 11 28 MSB 12, 11 SDl or Data 10, 9 29 Sign 10, 9 SSM Status 31, 30 30, 31 SSM 8 Parity Status 32 Parity Status 7 - 00 Label 1-8 32 5-187 HS-3282 • The Line Receiver functions as a voltage level translator. It transforms the 10 volt differential line voltage, ARINC 429 format, into 5 volt internal logic level. TABLE 2B. WORD 2 FORMAT BI-DIRECTIONAL BlT# FUNCTION ARINC BIT# 15 Sign 29 14 MSB 28 13 - 00 Data 27 - 14 • The output of the Line Receiver is one of two inputs to the Self-Test Data Selector (SEL). The other input to the Data Selector is the Self-Test Signal from the Transmitter section. Receiver Parity Status: 0 = Odd Parity 1 = Even Parity If the receiver input data word string is broken before the entire data word is received, the receiver will reset and ignore the partially received data word. If the transmitter is used to transmit consecutive data words, each word will be separated by a four (4) bit “null” state (both positive and negative outputs will maintain a zero (0) volt level.) FUNCTION 1-8 Label 9 LSB 11 - 23 Data 24 MSB 25 Parity Status • After the receiver data has been shifted down the shift register, it is placed in a holding register. The device ready flag will then be set indicating that data is ready to be fetched. If the data is ignored and left in the holding register, it will be written over when the next data word is received. TABLE 4A. WORD 1 FORMAT BI-DIRECTIONAL BIT# FUNCTION ARINC BIT# 15 - 9 Don’t Care XXX 8 Parity Status 25 7-0 Label 1-8 • The received data in the 32-bit holding register is placed on the bus in the form of two (2)16-bit words regardless of whether the format is for 32 or 25-bit data words. Either word can be accessed first or repeatedly until the next received data word falls into the holding register. TABLE 4B. WORD 2 FORMAT BI-DIRECTIONAL BIT# FUNCTION • The parity of the incoming word is checked and the status (i.e., logic “0” for odd parity and logic “1” for even parity) stored in the receiver latch and output on BD08 during the Word No. 1. ARINC BlT# 15 MSB 24 14 - 1 Data 23 -10 0 LSB 9 • The derived data clock then shifts the data down a 32-Bit long Data Shift Register (Data S/RI). The Data Word Length is selectable for either 25 Bits or 32 Bits long by the Control Signal (WLSEL). As soon as the data word is completely received, an internal signal (WDCNT1) is generated by the Word Gap Timer Circuit. • The Source/Destination (S/D) Decoder compares the user set code (X and Y) with Bits 9 and 10 of the Data Word. If the two codes are matched, a positive signal is generated to enable the WDCNT1 signal to latch in the received data. Otherwise, the data word is ignored and no latching action takes place. The S/D Decoder can be Enabled and Disabled by the control signal S/D ENB. If the data word is latched, an indicator flag (D/R1) is set. This indicates a valid data word is ready to be fetched by the user. TABLE 3. ARINC 25-BIT DATA FORMAT ARINC BIT # • The incoming data, either Self-Test or ARlNC 429, is double sampled by the Word Gap Timer to generate a Data Clock. The Receiver sample frequency (RCVCLK), 1MHz, or 125kHz, is generated by the Receiver/Transmitter Timing Circuit. This sampling frequency is ten times the Data Rate to ensure no data ambiguity. Receiver Parity Status: 0 = Odd Parity 1 = Even Parity No Source/Destination (S/D) in 25-Bit format. Receiver Operation Since the two receivers are functionally identical, only one will be discussed in detail, and the block diagram will be used for reference in this discussion. The receiver consists of the following circuits: • Assuming the user desires to access the data, he first sets the Data Select Line (SEL) to a Logic “0” level and pulses the Enable (EN1) line. This action causes the Data Selector (SELl) to select the first-data word, which contains the label field and Enable it onto the Data Bus. To obtain the second data word, the user sets the SEL line to a Logic “1” level and pulse the Enable (EN1) line again. The Enable pulse duration is matched to the user circuit requirement needed to read the Data Word from the Data Bus. The second Enable pulse is also used to reset the Device Ready (D/R1) flip-flop. This completes a receiving cycle. 5-188 HS-3282 Transmitter Operation Sample Interface Technique The Transmitter section consists of an 8-word deep by 31Bit long FIFO Memory, Parity Generator, Transmitter Word Gap Timing Circuit and Driver Circuit. From Figure 1, one can see that the Data Bus is time shared between the Receiver and Transmitter. Therefore, bus controlling must be synchronously shared between the Receiver and the Transmitter. • The FlFO Memory is organized in such a way that data loaded in the input register is automatically transferred to the output register for Serial Data Transmission. This eliminates a large amount of data managing time since the data need not be clocked from the input register to the output register. The FIFO input register is made up of two sets of 16 D-type flip-flops, which are clocked by the two parallel load signals (PL1 and PL2). PL1 must always precede PL2. Multiple PL1’s may occur and data will be written over. As soon as PL2 is received, data is transferred to the FIFO. The data from the Data Bus is clocked into the D-type flip-flop on the positive going edge of the PL signals. If the FIFO memory is initially empty, or the stack is not full, the data will be automatically transferred down the Memory Stack and into the output register or to the last empty FIFO storage register. If the Transmitter Enable signal (ENTX) is not active, a Logic “0”, the data remains at the output register. The FIFO Memory has storage locations to hold eight 31-bit words. If the memory is full and the new data is again strobed with PL, the old data at the input register is written over by the new data. Data will remain in the Memory until ENTX goes to a Logic “1”. This activates the FIFO Clock and data is shifted out serially to the Transmitter Driver. Data may be loaded into the FIFO only while ENTX is inactive (low). It is not possible to write data into the FIFO while transmitting. WARNING: If PL1 or PL2 is applied while ENTX is high, i.e., while transmitting, the FlFO may be disrupted such that it would require a MR (Master Reset) signal to recover. • The Output Register of the FIFO is designed such that it can shift out a word of 24 Bits long or 31 Bits long. This word length is again controlled by the WLSEL bit. The TX word Gap Timer Circuit also automatically inserts a gap equivalent to 4-Bit Times between each word. This gives a minimum requirement of 29-Bit time or 36-Bit time for each word transmission. Assuming the signal, ENTX, remains at a Logic “1”, a transfer to stack signal is generated to transfer the data down the Memory Stack one position. This action is continued until the last word is shifted out of the FIFO memory. At this time a Transmitter Ready (TX/R) flag is generated to signal the user that the Transmitter is ready to receive eight more data words. During transmission, if ENTX is taken low then high again, transmission will cease leaving a portion of the word untransmitted, and the data integrity of the FIFO will be destroyed. • A Bit Counter is used to detect the last Bit shifted out of the FIFO memory and appends the Parity Bit generated by the Parity Generator. The Parity Generator has a control signal, Parity Check (PARCK), which establishes whether odd or even parity is used in the output data word. PARCK set to a logic “0” will result in odd parity and when set to a logic “1” will result in even parity. Figure 2 shows the typical interface timing control of the ARlNC Chip for Receiving function and for Transmitting function. Timing sequence for loading the Transmitter FIFO Memory is shown in Timing Interval A. A transmitter Ready (TX/R) Flag signals the user that the Transmitter Memory is empty. The user then Enables the Transmitter Data, a 16-Bit word, on the Data Bus and strobes the Transmitter with a Parallel Load (PL1) Signal. The second part of the 32-Bit word is similarly loaded into the Transmitter with PL2, which also initiates data transfer to stack. This is continuous until the Memory is full, which is eight 31-Bit words. The user must keep track of the number of words loaded into the Memory to ensure no data is written over by other data. During the time the user is loading the Transmitter, he does not have to service the Receiver, even if the Receiver flags the user with the signal D/R1 that a valid received word is ready to be fetched. This is shown by the Timing interval B. If the user decides to obtain the received data before the Transmitter is completely loaded, he sets the two parallel load signals (PL1 and PL2) at a Logic “1” state, and strobes EN1 while the signal SEL is at a Logic “0” state. After the negative edge of EN1, the first 16-Bit segment of the received word becomes valid on the Data Bus. At the positive edge of EN1, the user should toggle the signal SEL to ready the Receiver for the second 16-Bit word. Strobing the Receiver with EN1, the second time, enables the second 16-Bit word and resets the Receiver Ready Flag D/R1. The user should now reset the signal SEL to a Logic “0” state to ready the Receiver for another Read Cycle. During the time period that the user is fetching the received words, he can load the transmitter. This is done by interlacing the PL signals with the EN signals as shown in the Timing Interval B. Servicing the Receiver 2 is similar and is illustrated by Timing interval C. Timing interval D shows the rest of the Transmitter loading sequence and the beginning of the transmission by switching the signal TX Enable to a Logic “1” state. Timing interval E is the time it takes to transmit all data from the FlFO Memory, either 288 Bit times or 232 Bit times. Repeater Operation This mode of operation allows a data word that has been received to be placed directly in the FIFO for transmission. A timing diagram is shown in Figure 7. A 32-bit word is used in this example. The data word is shifted into the shift register and the D/R flag goes low. A logic “0” is placed on the SEL line and EN1 is strobed. This is the same as the normal receiver operation and places half the data word (16 bits) on the data bus. By strobing PL1 at the same time as EN1, these 16 bits will be taken off the bus and placed in the FIFO. SEL is brought back high and EN1 is strobed again for the second 16 bits of the data word. Again by strobing PL2 at the same time the second 16 bits will be placed in the FIFO. The parity bit will have been stripped away leaving the 31-bit data word in the FIFO ready for transmission as shown in Figure 6. 5-189 HS-3282 CLK TX CLK 37 WLSEL SELF TEST 429D11 (A) 429D11 (B) RCV CLK RCVSEL WDCNT 1 WORD GAP TXSEL DATA CLOCK SEL LINE RECEIV. ER 1 3 DATA S/R 1 TX TIMING RCV CLK CONTROL WORD REGISTER TX CLK 32 LATCH 1 S/DENB SEL EN1 11 16 SEL 1 16 S/D DECODER 16 GND 21 SLF TST (BD05) S/D ENB1 (BD06) S/D ENB2 (BD09) X1 (BD07) Y1 (BD06) X2 (BD10) Y2 (BD11) PARCK (BD12) TXSEL (BD13) RCVSEL (BD14) WLSEL (BD15) WDCNT 1 34 WDCNT 2 16 SEL 2 16 TX CLK 16 D F/F S/D CODER 429D12 (B) VCC 1 2 SLF TEST 429D12 (A) RCV 38 D F/F SEL EN2 LATCH 2 CWSTR WLSEL TX WORD GAP 33 ENTX 4 5 16 32 LINE RECEIV. ER 2 SEL 16 DATA S/R 2 DATA CLOCK SELF TEST WLSEL WORD GAP 16 FIFO 8 x 31 TXC DRVR PARITY 11 - 20 32 429D0 WDCNT 2 22 - 27 RCV CLK 39 MR 6 7 D/R1 D/R2 8 9 10 SEL EN1 EN2 28 BD15BD00 DATA BUS 29 PL1 PL2 30 PARCK TX/R FIGURE 1. SINGLE CHIP ARINC 429 INTERFACE FUNCTIONAL BLOCK DIAGRAM 5-190 429D0 31 SELF TEST HS-3282 Absolute Maximum Ratings Thermal Information Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V Input, Output or I/O Voltage Applied (Except Pins 2 - 5) . . . . . . . . . . . . . . . . GND -0.3V to VDD +0.3V Input Voltage Applied (Pins 2 - 5) . . . . . . . . . . . . . . . . . -29V to +29V ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1 Thermal Resistance θJA (oC/W) θJC (oC/W) CDIP Package . . . . . . . . . . . . . . . . . . . 35 8 CLCC Package . . . . . . . . . . . . . . . . . . 55 12 Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +175oC Maximum Storage Temperature Range . . . . . . . . .-65oC to +150oC Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . +300oC Operating Conditions Operating Voltage Range . . . . . . . . . . . . . . . . . . . +4.75V to +5.25V Operating Temperature Range HS-3282-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to +70oC HS-3282-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC Die Characteristics Gate Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2632 Gates CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. DC Electrical Performance Specifications VDD = 5V ±5%, TA = 0oC to +70oC (HS-3282-5), TA = -55oC to +125oC (HS-3282-8) LIMITS PARAMETER SYMBOL CONDITIONS MIN MAX UNITS ARlNC INPUTS Pins 2-3,4-5 Logic “1” Input Voltage VlH VDD = 5.25V 6.7 13.0 V Logic “0” Input Voltage VIL VDD = 5.25V -13.0 -6.7 V Null Input Voltage VNUL VDD = 4.75V, 5.25V -2.5 +2.5 V Common Mode Voltage VCH VDD = 4.75V, 5.25V -5.0 +5.0 V Input Leakage IlH VDD = 5.25V, VIN = ±6.5V - 200 µA Input Leakage IlL VDD = 5.25V, VIN = 0.0V -450 - µA Differential Input Impedance RI VDD = 5.25V, VIN = +5V, -5V 12 - kΩ Input lmpedance to VDD RH VDD = 5.25V, VlN = 0V 12 - kΩ Input lmpedance to GND RG VDD = Open, VlN = 5.0V 12 - kΩ BIDIRECTIONAL INPUTS Pins 11-20, 22-27 Logic “1” Input Voltage VIH VDD = 5.25V 2.1 - V Logic “0” Input Voltage VIL VDD = 4.75V - 0.7 V Input Leakage lIH VDD = 5.25V,VIN = 5.25V - 1.5 µA Input Leakage IlL VDD = 5.25V, VIN = 0.0V -1.5 - µA ALL OTHER INPUTS Pins 8-10, 28, 29, 33, 34, 37, 39 Logic “1” Input Voltage VIH VDD = 5.25V 3.5 - V Logic “0” Input Voltage VIL VDD = 4.75V - 0.7 V Input Leakage IlH VDD = 5.25V, VIN = 5.25V - 10 µA Input Leakage IlL VDD = 5.25V, VIN = 0.0V -75 - µA 2.7 - V OUTPUTS Pins 6, 7, 11-20, 22-27, 30-32, 38, Supply Pin 1 Logic “1” Output Voltage VOH VDD = 4.75V, IOH = -1.5mA Logic “0” Output Voltage VOL VDD = 4.75V lOL= 1.8mA - 0.4 V Standby Supply Current lCC1 VDD = 5.25V, VIN = 0V Except 9,10, 29 = 5.25V - 20 mA Operating Supply Current lCC2 VDD = 5.25V, VIN = 5.25V Except 8, 33 = 0.0V, CLK = 1MHz - 20 mA 5-191 HS-3282 AC Electrical Performance Specifications VDD = 5V ±5%, TA = 0oC to +70oC (HS-3282-5), TA = -55oC to +125oC (HS-3282-8) LIMITS PARAMETER SYMBOL CONDITIONS MIN MAX UNITS Clock Frequency FC VDD = 4.75V, 5.25V - 1 MHz Data Rate 1/ FD VDD = 4.75V, 5.25V - 100 kHz Data Rate 2/ FD VDD = 4.75V, 5.25V - 12.5 kHz Master Reset Pulse Width TMR VDD = 4.75V, 5.25V 200 - ns Receiver Ready Time From 32nd Bit 1/ TD/R2 VDD = 4.75V, 5.25V - 16 µs Receiver Ready Time From 32nd Bit 2/ TD/R2 VDD = 4.75V, 5.25V - 128 µs TD/REN VDD = 4.75V, 5.25V 0 - ns TEN VDD = 4.75V, 5.25V 200 - ns Data Enable to Data Enable Time TENEN VDD = 4.75V, 5.25V 50 - ns Data Enable to Device Ready Reset Time TEND/R VDD = 4.75V, 5.25V - 200 ns Output Data Valid to Enable Time TENDATA VDD = 4.75V, 5.25V - 200 ns Data Enable to Data Select Time TENSEL VDD = 4.75V, 5.25V 20 - ns Data Select to Data Enable Time TSELEN VDD = 4.75V, 5.25V 20 - ns TDATAEN VDD = 4.75V, 5.25V - 80 ns Control Word Strobe Pulse Width TCWSTR VDD = 4.75V, 5.25V 130 - ns Control Word Setup Time TCWSET VDD = 4.75V, 5.25V 130 - ns Control Word Hold Time TCWHLD VDD = 4.75V, 5.25V 0 - ns TPL VDD = 4.75V, 5.25V 200 - ns Parallel Load to Parallel Load 2 Delay TPL12 VDD = 4.75V, 5.25V 0 - ns Transmitter Ready Delay Time TTX/R VDD = 4.75V, 5.25V - 840 ns Data Word Setup Time TDWSET VDD = 4.75V, 5.25V 110 - ns Data Word Hold Time TDWHLD VDD = 4.75V, 5.25V 0 - ns Enable Transmit to Output Data Valid Time 1/ TENDAT VDD = 4.75V, 5.25V - 25 µs Enable Transmit to Output Data Valid Time 2/ TENDAT VDD = 4.75V, 5.25V - 200 µs Output Data Bit Time 1/ TBlT VDD = 4.75V, 5.25V 4.95 5.05 µs Output Data Bit Time 2/ TBlT VDD = 4.75V, 5.25V 39.6 40.4 µs Output Data Null Time 1/ TNULL VDD = 4.75V, 5.25V 4.95 5.05 µs Output Data Null Time 2/ TNULL VDD = 4.75V, 5.25V 39.6 40.4 µs RECEIVER TIMING Device Ready to Enable Time Data Enable Pulse Width Output Data Disable Time CONTROL WORD TIMING TRANSMITTER FIFO Write Timing Parallel Load Pulse Width TRANSMITTER Output Timing 5-192 HS-3282 AC Electrical Performance Specifications VDD = 5V ±5%, TA = 0oC to +70oC (HS-3282-5), TA = -55oC to +125oC (HS-3282-8) (Continued) LIMITS PARAMETER SYMBOL CONDITIONS MIN MAX UNITS Data Word Gap Time 1/ TGAP VDD = 4.75V, 5.25V 39.6 40.4 µs Data Word Gap Time 2/ TGAP VDD = 4.75V, 5.25V 316.8 323.2 µs TDTX/R VDD = 4.75V, 5.25V - 400 ns TENTX/R VDD = 4.75V, 5.25V 0 - ns Data Enable to Parallel Load Delay Time TENPL VDD = 4.75V, 5.25V 0 - ns Data Enable Hold for Parallel Load Time TPLEN VDD = 4.75V, 5.25V 0 - ns TTX/REN VDD = 4.75V, 5.25V 0 - ns MIN MAX UNITS Data Transmission Word to TX/R Set Time Enable Transmit Turnoff Time REPEATER OPERATION TIMING Enable Transmit Delay Time NOTES: 1. 100kHz Data Rate. 2. 12.5kHz Data Rate. Electrical Performance Specifications VDD = 5V ±5%, TA = 0oC to +70oC (HS-3282-5), TA = -55oC to +125oC (HS-3282-8) LIMITS PARAMETER SYMBOL (NOTE 1) CONDITIONS Differential Input Capacitance CD VDD = Open, f = 1MHz, Note 2, 3 - 20 pF Input Capacitance to VDD CH VDD = GND, f = 1MHz, Note 2, 3 - 20 pF lnput Capacitance to GND CG VDD = Open, f = 1MHz, Note 2, 3 - 20 pF Input Capacitance Cl VDD = Open, f = 1MHz, Note 2, 4 - 15 pF Output Capacitance CO VDD = Open, f = 1MHz, Note 2, 5 - 15 pF Clock Rise Time TLHC CLK = 1MHz, From 0.7V to 3.5V - 10 ns Clock Fall Time THLC CLK = 1MHz, From 3.5V to 0.7V - 10 ns Input Rise Time TLHI From 0.7V to 3.5V, Note 6 - 15 ns Input Fall Time THLI From 3.5V to 0.7V, Note 6 - 15 ns NOTES: 1. The parameters listed in this table are controlled via design or process parameters and are not directly tested. These parameters are characterized upon initial design and after major process and/or design changes affecting these parameters. 2. All measurements are referenced to device GND. 3. Pins 2-3, 4-5. 4. Pins 8-10, 28, 29, 33, 34, 37, 39. 5. Pins 6, 7, 11-20, 22-27, 30-32, 38. 6. Pins 8-20, 22-29, 33, 34. 5-193 HS-3282 Timing Waveforms TX/R TX ENABLE DATA BUS PL1 PL2 D/R1 D/R2 EN1 EN2 SEL TIME INTERVAL A TIME INTERVAL B TIME INTERVAL C BUS IS BEING USED AS AN OUTPUT TIME INTERVAL D TIME INTERVAL E BUS IS BEING USED AS AN INPUT FIGURE 2. TYPICAL INTERFACE TIMING SEQUENCE 429DI BIT 32 tD/R tEND/R D/R tD/REN tENEN EN tSELEN tEN SEL tENDATA tSELEN tENSEL tDATAEN tENDATA WORD 1 BD00-15 tENSEL tEN tDATAEN WORD 2 OR SEL WORD 2 BD00-15 WORD 1 FIGURE 3. RECEIVER TIMING tCWSTR CWSTR tCWHLD tCWSET BD00-15 CONTROL WORD FIGURE 4. CONTROL WORD TIMING 5-194 HS-3282 Timing Waveforms (Continued) PL1 tPL12 tPL PL2 tTX/R tPL TX/R tDWSET tDWSET tDWHLD BD00-15 tDWHLD WORD 1 WORD 2 FIGURE 5. TRANSMITTER FIFO WRITE TIMING TX/R tENTX/R ENTX tBIT tNUL tENDAT BIT 1 42900 tNUL BIT 2 tNUL tGAP BIT 32 BIT 1 BIT 32 tDTX/R FIGURE 6. TRANSMITTER OUTPUT TIMING 429DI BIT 32 tD/R tEND/R D/R tD/REN EN tSELEN tEN tENEN tEN tSELEN tENSEL tENSEL SEL tENPL tPLEN PL1 tENPL tPLEN PL2 tTX/R TX/R tTX/REN tENTX/R ENTX tENDAT tNUL BIT 1 429D0 BIT 32 tDTX/R FIGURE 7. REPEATER OPERATION TIMING 5-195 HS-3282 Burn-In Circuits HS-3282 CERDIP VDD C GND 1 VDD NC 40 NC F4 2 DI1(A) MR 39 F15 GND 3 DI1(B) TX CLK 38 NC F4 4 DI2(A) CLK 37 F0 GND 5 DI2(B) NC 36 NC NC 6 D/R1 NC 35 NC NC 7 D/R2 CWSTR 34 VDD F9 8 SEL ENTX 33 GND VDD 9 EN1 429D0 32 NC F8 10 EN2 429D0 31 NC F15 11 BD15 TX/R 30 NC F14 12 BD14 PL2 29 F8 F13 13 BD13 PL1 28 F8 F12 14 BD12 BD00 27 F0 F11 15 BD11 BD01 26 F1 F10 16 BD10 BD02 25 F2 F9 17 BD09 BD03 24 F3 F8 18 BD08 BD04 23 F4 F7 19 BD07 BD05 22 F5 F6 20 BD06 21 GND HS-3282 CLCC F4 VDD 2 1 44 43 42 41 40 NC DI2(A) DI1(B) DI1(A) VCC NC CLK TXCLK MR NC NC NC GND 3 F0 F4 4 NC GND 5 C F15 NC 6 DI2(B) GND NC 7 NC NC 39 NC NC 8 D/R1 NC 38 NC NC 9 D/R2 CWSTR 37 VDD F9 10 SEL ENTX 36 GND VDD 11 EN1 D0 35 NC F8 12 EN2 D0 34 NC F0 F11 17 BD11 BD01 29 F1 BD02 BD00 30 BD03 16 BD12 BD04 F8 F12 BD05 PL1 31 GND 15 BD13 BD06 F8 F13 BD07 F14 PL2 32 BD08 NC 14 BD14 BD09 TX/R 33 BD10 13 BD15 NC F15 NOTES: 1. Resistors = 47kΩ, 5%, 1/4W (Min) 2. GND = Ground 3. VDD = +5.5V, ±0.5V 4. C = 0.01mF/Socket (Min) 5. F0 = 100kHz, F1 = F0/2, . . . F15 = F14/2 5-196 F02 F03 F04 F05 GND F06 F07 F08 F09 NC F10 18 19 20 21 22 23 24 25 26 27 28 HS-3282 Die Characteristics DIE DIMENSIONS: 246 x 224 x 19 mils) (6250 x 5700 x 483µm) GLASSIVATION: Type: SiO2 Thickness: 8kA ±1kÅ METALLIZATION: Type: Si-Al Thickness: 11kÅ ±2kÅ WORST CASE CURRENT DENSITY: 2 x 105 A/cm2 Metallization Mask Layout (37) CLK (38) TX CLK (39) MR (40) N/C (2) 429DI1(A) (1) VDD (4) 429DI2(A) (3) 429DI1(B) (5) 429DI2(B) (6) D/R1 HS-3282 D/R2 (7) (36) N/C SEL (8) EN1 (9) (35) N/C EN1 (10) (34) CWSTR BD15 (11) (33) ENTX BD14 (12) (32) 429D0 (31) 429D0 BD13 (13) (30) TX/R BD12 (14) (29) PL2 BD11 (15) (28) PL1 BD10 (16) BD01 (26) BD02 (25) BD03 (24) BD04 (23) BD05 (22) GND (21) BD06 (20) BD07 (19) BD08 (18) BD09 (17) (27) BD00 All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see web site http://www.intersil.com 5-197