CT2581 Aeroflex Circuit Technology, CT2581 Datasheet
CT2581
Related parts for CT2581
CT2581 Summary of contents
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... WATCHDOG TIMER ENCODER / DECODER STORE RELEASED HEADER WORD IDENT 1760 CHECKSUM GENERATION/VALIDATION echnology eroflex Circuit T CT2578 / CT2581 FOR MIL-STD-1553 / 1760 & McAir CIRCUIT TECHNOLOGY CIRCUIT TECHNOLOGY www.aeroflex.com/act1.htm www.aeroflex.com/act1.htm Packaging – Hermetic Ceramic 119 Lead, 1.28" SQ. x .16" PGA 84 Lead, 1.645" SQ. x .14" CQFP ...
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... MIL-STD-1760 and are powered by a +5V supply. If sinusoidal (McAir) transceivers are required then the part number becomes CT2581. This is the only difference between CT2578 and CT2581 word data buffer memory is used to store messages until validation is complete. Only validated messages are transferred to the subsystem at a rate of 500 nS per word ...
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NRES (Bibirectional IO with pull up resistor) Bidirectional reset pin. Interface to this pin should be in the form of an open collector pull down driver. The unit will be reset when a low level input is asserted on power ...
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MESSAGE FORMATS TRANSFER DATA BUS COMMAND NVCR NHDR NDATA NCMDSTRB NDATAST T0-T15 1. Valid command word received, contents available on T0-T15 for illegalization purposes. 2. First valid data word (1760 header word) received, contents available on T0-T15 ...
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Valid receive command word received, contents available on T0-T15 for illegalization purposes. 2. Valid transmit command word received, contents available on T0-T15. 3. Status response of transmitting terminal received. 4. First valid data word (1760 header word) received, contents ...
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TRANSFER BROADCAST DATA BUS COMMAND NVCR NHDR NDATA NCMDSTRB NDATAST T0-T15 1. Valid command word received, contents available on T0-T15 for illegalization purposes. 2. First valid data word (1760 header word) received, contents available on T0-T15 and ...
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MODE CODES WITH DATA RECEIVE BROADCAST DATA BUS COMMAND NVCR NDATA NSYNC When applicable T0-T15 1. Valid command word received, contents available on T0-T15 for illegalization purposes. Status must be valid within 600 nS. 2. Valid data word received, contents ...
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One way to implement this function is to place a latching PROM to the T0-T10 data bus. The PROM would only have to decode 11 bits (5 bits subaddress, 5 bit word count and 1 bit T/R) and have a ...
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Error Conditions Action taken by device 1. Invalid command. No response. Command ignored. 2. Command followed by No status response. another word. Set message error. Sequence terminated. 3. Broadcast address. No status response. Set message error. Set broadcast. Sequence terminated. ...
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Error Conditions Action taken by device 1. Invalid command. No response. Command ignored. 2. Non contiguous No status response. command words. Set message error. Sequence terminated. 3. Transmit command No status response. followed by another word Set message error. (excluding ...
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SYNCHRONIZE WITHOUT DATA WORD (01) SYNC * STATUS CMD The device will respond with status. The NSYNC signal will go active low for 500 nS. Throughout this period the highway T0- T15 will be zero and remain at zero until ...
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OVERRIDE TRANSMITTER SHUTDOWN (05 STATUS CMD The device will respond with status and reactivate a shutdown transmitter on the alternate bus. If the command was a broadcast the status transmission will be suppressed and the broadcast bit ...
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RESERVED MODE CODES (09-0F) RESVD * STATUS CMD The status is not cleared or loaded before it is transmitted with the message error bit set. If the command was a broadcast the status transmission will be suppressed and the broadcast ...
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Error Conditions Action taken by device 1. Invalid command. No response. Command ignored. 2. Command followed by No status response. another word. Set message error. Sequence terminated. 3. T/R bit of command set No status response. to zero. Set message ...
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Error Conditions Action taken by device 1. Invalid command. No response. Command ignored. 2. Command not followed No status response. contiguously by data Set message error. word Sequence terminated. 3. Command followed by No status response. too many words. Set ...
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Rising edge of NCMDSTRB to falling 0.5 edge of first NSSTRB 2. NSSTRB to next NSSTRB 3. Rising edge of C1MHZ to falling edge of NSSTRB 4. Falling edge of C1MHZ to rising edge of NSSTRB 5. Falling edge ...
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OPERATING CONDITIONS ABSOLUTE MAXIMUM RATINGS V Supply voltage DD V Supply voltage SS V High level input voltage IH V Low level input voltage IL Operating free air temperature range Storage temperature range RECOMMENDED OPERATING CONDITIONS MIN NOM MAX UNIT ...
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PIN ASSIGNMENTS -PGA (2578/81-02-XX-YY-P119) PGA SIGNAL STREL (-12 only) G12 F12 NSR E12 WRAPEN E11 T 0 C12 T 1 D11 T 2 A13 T 3 B11 T 4 C10 T 5 A11 T 6 A10 DATABUS ...
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PACKAGE OUTLINE 119 Pin PGA REF SCDCT2578 REV B 3/11/98 DIMENSIONS (Inches) MIN NOM A 0.160 A1 0.040 0.050 b 0.016 0.018 D 1.280 E 1.280 e1 - 0.100 e - 1.200 L 0.110 0.130 19 MAX - 0.210 0.060 ...
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PIN ASSIGNMENTS (2578/81-02-XX-YY-F84) CQFP SIGNAL 1 T12 2 T13 3 T14 4 T15 5 NSYNC 6 MCAIR 7 NVALCHK (-12 only) 8 STATUS (-12 only) 9 N/C 10 N/C 11 NENCHK (-12 only) 12 NVCR 13 BCST 14 NTF 15 ...
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CQFP - Flat Package Outline POWER SUPPLY REQUIREMENTS CURRENT Transmitter standby (both channels) 60 25% duty cycle (one channel) 50% duty cycle (one channel) POWER DISSIPATION Transmitter standby (both channels) 0.3 50% duty cycle (one channel) 100% duty cycle (one ...
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... CT2578-12-XT-F84 CT2578-12-IN-F84 CT2578-12-CG-F84 CT2581-02-QM-P119 CT2581-02-XT-P119 CT2581-02-IN-P119 CT2581-02-CG-P119 CT2581-02-QM-F84 CT2581-02-XT-F84 CT2581-02-IN-F84 CT2581-02-CG-F84 * Screening Code Breakdown QM = MIL-STD-883 Compliant XT = Extended Temperature Range (-55°C to +125° Industrial Temperature Range (-40°C to +85° Commercial Temperature Range (-0°C to +70°C) ...