• 3.3V low voltage advanced BiCMOS technology (LVT) 16bit transparent D-type latches with 3-state outputs
• Total dose hardness:
- > 100 krad (Si), depending upon space mission
• Excellent Single Event Effect:
- SEL
: No LU > 119 MeV/mg/cm
TH
• Package: 48 pin RAD-PAK® flat package
• Operating temperature range:
- 55 to 125
• Distributed V
°
C
and GND pin configuration minimizes high-
CC
speed switching noise
• Supports mixed-mode signal operation
- 5V input and output voltages with 3.3V V
• Supports unregulated battery operation down to 2.7V
• Supports live insertion
• Bus-hold data inputs eliminate the need for external pullup
resistors
2
CC
1/24
48/25
47/36
C1
1D
To Seven Other Channels
2/13
1Q1/2Q1
Logic Diagram
DESCRIPTION:
Maxwell Technologies’ 54LVTH162373 16-bit transparent Dtype 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) V
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. A buffered
output-enable (OE
) input can be used to place the eight outputs in either a normal logic state or a high impedance state.
In the high impedance state, the outputs neither load nor drive
the bus lines significantly. The high impedance state and the
increased drive provide the capability to drive bus lines without the need for interface or pullup components. OE
affect internal operations of the latch. Old data can be retained
or new data can be entered while the outputs are in the high
impedance state.
Maxwell Technologies' patented R
ogy incorporates radiation shielding in the microcircuit package. It eliminates the need for box shielding while providing
the required radiation shielding for a lifetime in orbit or space
mission. In a GEO orbit, R
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
12.19.01 Rev 1
AD-PAK® packaging technol-
AD-PAK provides greater than 100
All data sheets are subject to change without notice
These data sheets are created using the chip manufacturer’s published specifications. Maxwell Technologies verifies
PRELIMINARY
functionality by testing key parameters either by 100% testing, sample testing or characterization.
The specifications presented within these data sheets represent the latest and most accurate information available to
date. However, these specifications are subject to change without notice and Maxwell Technologies assumes no
responsibility for the use of this information.
Maxwell Technologies’ products are not authorized for use as critical components in life support devices or systems
without express written approval from Maxwell Technologies.
Any claim against Maxwell Technologies must be made within 90 days from the date of shipment from Maxwell Technologies. Maxwell Technologies’ liability shall be limited to replacement of defective parts.
54LVTH162373
Memory
1000596
12.19.01 Rev 1
All data sheets are subject to change without notice