DESCRIPTION:

Maxwell Technologies’ 54LVTH162373 16-bit transparent D type latches with 3-state output features a greater than 100 krad (Si) total dose tolerance, depending upon space mission. The 54LVTH162373 is designed for low voltage (3.3V) VCC operation, but with the capability to provide a TTL interface to a 5V system environment. It is suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The 54LVTH162373 can be used as two 8-bit latches or one 16-bit latch. When the latch-enable (LE) input is low, the Q output are latched at the levels set up at the data (D) inputs. When LE is high, the Q outputs follow the D inputs.

FEATURES:

• 3.3V low voltage advanced BiCMOS technology (LVT) 16-bit transparent D-type latches with 3-state outputs

• Total dose hardness:

   - > 100 krad (Si), depending upon space mission

• Excellent Single Event Effect:

   - SELTH: No LU > 119 MeV/mg/cm2

• Package: 48 pin RAD-PAK® flat package

• Operating temperature range:

   - 55 to 125°C

• Distributed VCC and GND pin configuration minimizes high speed switching noise

• Supports mixed-mode signal operation

   - 5V input and output voltages with 3.3V VCC

• Supports unregulated battery operation down to 2.7V

• Supports live insertion

• Bus-hold data inputs eliminate the need for external pullup resistors