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HI-1574PSM Datasheet(PDF) 1 Page - Holt Integrated Circuits |
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HI-1574PSM Datasheet(HTML) 1 Page - Holt Integrated Circuits |
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1 / 9 page  HI-1573, HI-1574 MIL-STD-1553 3.3V Monolithic Dual Transceivers DESCRIPTION FEATURES PIN CONFIGURATIONS The HI-1573 and HI-1574 are low power CMOS dual transceivers designed to meet the requirements of the MIL-STD-1553 specification. The transmitter section of each channel takes complementary CMOS / TTL digital input data and converts it to bi-phase Manchester encoded 1553 signals suitable for driving the bus isolation transformer. Separate transmitter inhibit control signals are provided for each transmitter. The receiver section of the each channel converts the 1553 bus bi-phase data to complementary CMOS / TTL data suitable for inputting to a Manchester decoder. Each receiver has a separate enable input which can be used to force the output of the receiver to a logic "0" (HI-1573) or logic 1 (HI-1574). To minimize the package size for this function, the transmitter outputs are internally connected to the receiver inputs, so that only two pins are required for connection to each coupling transformer. For designs requiring independent access to transmitter and receiver 1553 signals, please contact your Holt Sales representative. VDDA 1 BUSA 2 3 RXENA 4 GNDA 5 VDDB 6 BUSB 7 8 RXENB 9 GNDB 10 BUSA BUSB ! ! ! ! ! ! ! ! Compliant to MIL-STD-1553A & B, ARINC 708A 3.3V single supply operation Smallest footprint available in 20 pin plastic ESOIC (thermally enhanced SOIC) package Less than 0.5W maximum power dissipation 7 mm x 7 mm 44-pin plastic chip-scale package Available in DIP and small outline (ESOIC) package options Military processing options Industry standard pin configurations 20 Pin Ceramic DIP package 20 19 TXA 18 TXINHA 17 RXA 16 15 14 TXB 13 TXINHB 12 RXB 11 TXA RXA TXB RXB 20 Pin Plastic ESOIC - WB package January 2007 (DS1573 Rev.I) 01/07 1573CDI 1573CDT 1573CDM 1574CDI 1574CDT 1574CDM 1573PSI 1573PST 1573PSM 1574PSI 1574PST 1574PSM 1 BUSA 2 3 RXENA 4 GNDA 5 VDDB 6 BUSB 7 8 RXENB 9 GNDB 10 VDDA BUSA BUSB 20 19 TXA 18 TXINHA 17 RXA 16 15 14 TXB 13 TXINHB 12 RXB 11 TXA RXA TXB RXB PIN CONFIGURATIONS -1 RXENA 2 GNDA 3 GNDA 4 GNDA 5 VDDB 6 VDDB 7 BUSB 8 BUSB 9 10 11 BUSB BUSB 33 - 32 - 31 TXINHA 30 RXA 29 28 - 27 - 26 25 TXB 24 TXINHB 23 - RXA TXB 1573PCI 1573PCT 1574PCI 1574PCT 44 Pin Plastic 7mm x 7mm Chip-scale package HOLT INTEGRATED CIRCUITS www.holtic.com |
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