National Hybrid

The Terminal+ is a complete Multi-Protocol Mil-Std-1553 Data Bus Interface between a dual redundant bus and a host processor. The device functions as a programmable Bus Controller, Remote Terminal, Bus Monitor and simultaneous Monitor/Remote Terminal. It contains a protocol chip, two monolithic transceivers and 64K word SRAM and two integrated transformers.  The only external component required is a 20MHz clock.

The Terminal+ appears to the host computer as 64K words of 16 bit wide memory controlled by standard RAM signals. The device can thus be easily interfaced with all popular processors and buses. The built in interrupt controller supports an internal FIFO which retains header information for queuing up to 6 pending interrupt requests plus an overflow interrupt.

The NHI-15116 series of MIL-STD-1553/1760 monolithic dual transceivers are available in 0.800" x .600" 24 pin flatpack package.

Each receiver converts the 1553 bus bi-phase data to complementary RX and RX_L TTL digital outputs for use by the manchester decoder. The device provides independent receiver enables for each channel.

The transmitters will output bi-phase manchester to the coupling transformer when the TX and TX_L inputs are driven by complementary TTL digital data. The device provides an independent transmitter inhibit TXINH for each channel.

To reduce the pin count and package size, the transmitter outputs are connected to the receiver inputs internal to the device for each channel. This results in only two connections BUS & BUS_L to the coupling transformer per channel.

The NHI-1573 series of MIL-STD-1553/1760 monolithic dual transceivers are available in 0.800" x .600" 24 pin flatpack package.

Each receiver converts the 1553 bus bi-phase data to complementary RX and RX_L TTL digital outputs for use by the manchester decoder. The device provides independent receiver enables for each channel.

The transmitters will output bi-phase manchester to the coupling transformer when the TX and TX_L inputs are driven by complementary TTL digital data. The device provides an independent transmitter inhibit TXINH for each channel.

To reduce the pin count and package size, the transmitter outputs are connected to the receiver inputs internal to the device for each channel. This results in only two connections BUS & BUS_L to the coupling transformer per channel.

The NHI-1569 series of MIL-STD-1553/1760 monolithic dual transceivers are available in 1.00"x .300" ceramic dual in-line and flatpack packages.

Each receiver converts the 1553 bus bi-phase data to complementary RX and RX_L TTL digital outputs for use by the manchester decoder. The device provides independent receiver enables for each channel.

The transmitters will output bi-phase manchester to the coupling transformer when the TX and TX_L inputs are driven by complementary TTL digital data. The device provides an independent transmitter inhibit TXINH for each channel.

To reduce the pin count and package size, the transmitter outputs are connected to the receiver inputs internal to the device for each channel. This results in only two connections BUS & BUS_L to the coupling transformer per channel.

The NHI-1567/1568 series of MIL-STD-1553/1760 monolithic dual transceivers are available in 1.00"x .300"ceramic dual in-line and flatpack packages.

Each receiver converts the 1553 bus bi-phase data to complementary RX and RX_L TTL digital outputs for
use by the manchester decoder. The device provides independent receiver enables for each channel.

The transmitters will output bi-phase manchester to the coupling transformer when the TX and TX_L inputs are driven by complementary TTL digital data. The device provides an independent transmitter inhibit TXINH for each channel.

To reduce the pin count and package size, the transmitter outputs are connected to the receiver inputs internal to the device for each channel. This results in only two connections BUS & BUS_L to the coupling transformer per channel.

The NHI-1567 series of Mil-Std-1553/1760 monolithic dual transceivers are available in 1.000" x .300" ceramic dual in-line and flatpack packages.

Each receiver converts the 1553 bus bi-phase data to complementary RX and RX_L TTL digital outputs for use by the manchester decoder. The device provides independent receiver enables for each channel.

The transmitters will output bi-phase manchester to the coupling transformer when the TX and TX_L
inputs are driven by complementary TTL digital data. The device provides an independent transmitter inhibit TXINH for each channel.

To reduce the pin count and package size, the transmitter outputs are connected to the receiver inputs internal to the device for each channel. This results in only two connections BUS & BUS_L to the coupling transformer per channel.

The NHI-15467/15468 series of MIL-STD-1553/1760 monolithic dual transceivers are available in 1.00"x .300"ceramic dual in-line and flatpack packages.

Each receiver converts the 1553 bus bi-phase data to complementary RX and RX_L TTL digital outputs for use by the manchester decoder. The device provides independent receiver enables for each channel.

The transmitters will output bi-phase manchester to the coupling transformer when the TX and TX_L inputs are driven by complementary TTL digital data. The device provides an independent transmitter inhibit TXINH for each channel.

To reduce the pin count and package size, the transmitter outputs are connected to the receiver inputs internal to the device for each channel. This results in only two connections BUS & BUS_L to the coupling transformer per channel.

The 1553-IDEA PCI/S is a Plug & Play PCI bus compatible card that functions as a tester/simulator for MIL-STD-1553 systems.

The card’s architecture is based on an enhanced version of the popular IDEA MKIII board and is divided into two identical halves which operate concurrently. Each half emulates a Bus Controller with up to 31 independent Remote Terminals, or a Bus Monitor.