1574PSI 1574PST

DESCRIPTION FEATURES

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 bus takes complementary  CMOS / TTL Manchester II bi-phase data and converts it to  differential voltages suitable for driving the bus isolation  transformer. Separate transmitter inhibit control signals  are provided for each transmitter. The receiver section of each bus converts the 1553 bus biphase differential data to complementary CMOS / TTLdata  suitable for input to a Manchester decoder. Each receiver  has a separate enable input, which forces the receiver  outputs to 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.

FEATURES

Compliant to MIL-STD-1553Aand B,  ARINC 708A 

 3.3V single supply operation 

 Smallest footprint available in 7 mm x 7 mm  44- pin plastic chip-scale package (QFN) 

Available in DIP and small outline (ESOIC)  package options 

 Industrial and extended temperature ranges 

 Industry standard pin configurations