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PDF 54LVTH162373 Data sheet ( Hoja de datos )
| Número de pieza | 54LVTH162373 | |
| Descripción | 3.3V 16-Bit Transparent D-Type Latches | |
| Fabricantes | Maxwell Technologies | |
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54LVTH162373
3.3V 16-Bit Transparent
D-Type Latches
1OE
1Q1
1Q2
GND
1Q3
1Q4
VCC
1Q5
1Q6
GND
1Q7
1Q8
2Q1
2Q2
GND
2Q3
2Q4
VCC
2Q5
2Q6
GND
2Q7
2Q8
2OE
1 48
54LVTH162373
24 25
1LE
1D1
1D2
GND
1D3
1D4
VCC
1D5
1D6
GND
1D7
1D8
2D1
2D2
GND
2D3
2D4
VCC
2D5
2D6
GND
2D7
2D8
2LE
Logic Diagram (PositiveLogic)
1OE/2OE 1/24
1LE/2LE 48/25
1D1/2D1 47/36
C1
1D
To Seven Other Channels
Logic Diagram
2/13 1Q1/2Q1
FEATURES:
DESCRIPTION:
• 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
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 reg-
isters. 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 out-
puts 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 with-
out the need for interface or pullup components. OE does not
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 RAD-PAK® packaging technol-
ogy incorporates radiation shielding in the microcircuit pack-
age. 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, RAD-PAK provides greater than 100
krad (Si) radiation dose tolerance. This product is available
with screening up to Class S.
1000596
12.19.01 Rev 1
(858) 503-3300 - Fax: (858) 503-3301 - www.maxwell.com
All data sheets are subject to change without notice 1
©2001 Maxwell Technologies
All rights reserved.
1 page  
3.3V 16-Bit Transparent D-Type
54LVTH162373
fp
TABLE 7. FUNCTION TABLE
(EACH 8-BIT SECTION)
INPUTS
OE LE
OUTPUT
DQ
L HHH
L HLL
L L X Q0
H XXZ
FIGURE 1. LOAD CIRCUIT
Figure Note:
1. CL includes probe and jig capacitance.
PARAMETER MEASUREMENT INFORMATION
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
OPEN
6V
GND
FIGURE 2. PULSE DURATION
1000596
12.19.01 Rev 1
All data sheets are subject to change without notice 5
©2001 Maxwell Technologies
All rights reserved.
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 54LVTH162373.PDF ] | |
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