TEWS Technologies Introduces Extended Temperature High-Density Digital I/O Conduction Cooled PMC Module

TEWS adds to its already broad offering of conduction cooled PMCs with the release of the high-density 64 Digital TTL I/O or 32 Differential I/O TPMC321 module. The conduction cooled PMC module is ideal for applications in transportation, COTS, communications, and process control. The TPMC321 joins the offerings already available for communications, networking, CAN, and module control in the conduction cooled PMC format.

The TPMC321 is a conduction cooled single-width 32-bit PMC module offering 64 ESD-protected 5V-tolerant TTL lines or 32 differential I/O lines using ESD-protected EIA-422 / EIA-485 compatible line transceivers or Multipoint-LVDS transceivers.

Each line is individually programmable as input, output, or tri-state. The receivers are always enabled, which allows determining the state of each I/O line at any time. This can be used as read back function for lines configured as outputs. Each TTL I/O line has a pull-up resistor. The pullup voltage is selectable to be either +3.3V or +5V.

Extended Temperature High-Density Digital I/O Conduction Cooled PMC Module TPMC321
TPMC321 Block Diagram

Differential I/O lines are terminated, EIA-422 / EIA-485 lines with 120 Ω, M-LVDS lines with 100 Ω.

Each input can generate an interrupt. Signal edge handling is programmable to interrupt on rising and/or falling edge of an input signal. Interrupts can be enabled and disabled for each bit. For interrupt source detection the status of each bit can be read from interrupt status registers.

The TPMC321 provides rear I/O via P14. 

Software drivers for VxWorks, Linux, Windows, QNX and Integrity are available.  To support long term programs, the TEWS´ modules have a 5-year warranty.