HI-8684 Holt Integrated Circuits, HI-8684 Datasheet
HI-8684
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HI-8684 Summary of contents
Page 1
... Internal comparator levels are set just below the standard 6.5 volt minimum data threshold and just above the standard 2.5 volt maximum null threshold. The -10 version of the HI-8684 allows the incorporation of an external 10K resistance in series with each ARINC input for lightning protection without affecting ARINC level detection. ...
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... RECEIVER INPUTS Figure block diagram of both the HI-8683 and HI-8684. The difference between the two products is the HI-8684 has a built-in line receiver whereas the HI-8683 is strictly a digital ...
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... INA and INB inputs and the resulting One/Zero data is shifted into a 32-bit input register as illustrated in Figure 3. In the HI-8684, the One/Zero data shifted into the input reg- ister is created from either the two digital outputs of the built- in line receiver (Figure 3) or the TESTA and TESTB inputs (Figure 4) ...
Page 4
... TEST MODE (HI-8684 only) The built-in differential line receiver on the HI-8684 can be disabled allowing the data and clock detection circuitry to be driven directly with digital signals. The logical OR func- tion of the TESTA and TESTB is defined in Truth Table 1 ...
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... FIGURE 3 - RECEIVER INPUT TIMING FOR ARINC 429 TESTA TESTB DERIVED DATA DERIVED CLOCK FIGURE 4 - TEST INPUT TIMING FOR ARINC 429 32nd DERIVED DATA ARINC Bit DATA RDY READ FIGURE 5 - RECEIVER PARALLEL DATABUS TIMING HI-8683, HI-8684 ARINC Data Bits ARINC Data Bits ...
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... Leads ................................ +280°C for 10 sec Package body .....................................+220°C Storage Temperature ............. -65°C to +150°C DC ELECTRICAL CHARACTERISTICS Vcc = 5V, GND = 0V Operating Temperature Range (unless otherwise specified). PARAMETERS ARINC Bus Inputs (RINA & RINB, HI-8684 only) Differential input voltage one or zero null common mode Input resistance ...
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... READ pulse width Data delay from READ READ to data floating READ to DATA RDY clear READ pulse to next READ pulse GAPCLK frequency 32 ARINC bit to DATA RDY HI-8683, HI-8684 SYMBOL TEST CONDITIONS READ , PARITY ENA, TESTA & TESTB 5. 0.0V ...
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... HI-8684PJI 20 PIN PLASTIC PLCC HI-8684PJT 20 PIN PLASTIC PLCC HI-8684PSI 20 PIN PLASTIC SOIC - WB HI-8684PST 20 PIN PLASTIC SOIC - WB HI-8684PJI-10 20 PIN PLASTIC PLCC HI-8684PJT-10 20 PIN PLASTIC PLCC HI-8684PSI-10 20 PIN PLASTIC SOIC - WB HI-8684PST-10 20 PIN PLASTIC SOIC - WB Legend Wide Body HI-8683, HI-8684 DATA RDY D6 ...
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... PLASTIC SMALL OUTLINE (SOIC (Wide Body) .454 ± .008 (11.531 ± .203) .4065 ± .0125 (10.325 ± .318) .050 TYP (1.27) HI-8683, HI-8684 PACKAGE DIMENSIONS .905 .015 (22.99 .381) .135 .015 (3.429 .381 .100 .010 .004 (2.540 ...
Page 10
... SQ. .152 ± .002 (.3.861 ± .051) .020 MIN .320 ± .010 (.508 MIN) (8.128 ± .254) HI-8683, HI-8684 PACKAGE DIMENSIONS .296 ± .003 (7.518 ± .076) .018 TYP (.457) 0° to 8° .033 ± .017 (.838 ± .432) PIN NO. 1 IDENT .026 ± ...