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PDF 54LVTH244A Data sheet ( Hoja de datos )
| Número de pieza | 54LVTH244A | |
| Descripción | 3.3V ABT 8-Bit Octal Buffers/Drivers | |
| Fabricantes | Maxwell Technologies | |
| Logotipo |  |
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54LVTH244A
3.3V ABT 8-Bit Octal
Buffers/Drivers
Logic Diagram
FEATURES:
• 3.3V ABT octal buffers/drivers with 3-state outputs
• RAD-PAK® radiation-hardened against natural space radia-
tion
• Package:
- 20 Pin RAD-PAK® flat package
• Operating temperature range:
-55 to 125°C
• Supports mixed-mode signal operation
-5V Input and Output Voltages with 3.3V VCC
• Supports mixed-mode signal operation
- 5V input and output voltages with 3.3V VCC
• Supports unregulated battery operation down to 2.7V
• Typical VOLP (output ground bounce) < 0.8V at VCC=3.3V,
TA=25°C
• Supports live insertion
• Bus-hold data inputs eliminate the need for external pullup
resistors
DESCRIPTION:
Maxwell Technologies’ 54LVTH244A octal buffers/drivers
micro-circuit is housed in a Rad-Pak® package. The
54LVTH244A is designed specifically for low voltage (3.3V)
VCC operation, but with the capability to provide a TTL inter-
face to a 5V system environment. The 54LVTH244A is orga-
nized as two 4-bit drivers with separate output enable (OE)
inputs. When OE is low, the device passes data from the A
inputs to the Y outputs. When OE is high, the outputs are in
the high impedance state. The 54LVTH244A active bus hold
circuitry is provided to prevent floating data inputs at a valid
logic level and to eliminate the need for pullup resistors.
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 a space
mission. This product is available with packaging and screen-
ing up to Class S.
1000601
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 ABT 8-Bit Octal Buffers/Drivers
TABLE 7. FUNCTION TABLE
(EACH BUFFER)
INPUTS
OUTPUT
OE A Y
l HH
L LL
H XZ
54LVTH244A
FIGURE 1. LOAD CIRCUIT FOR OUTPUTS
Figure Note:
1. CL includes probe and jog capacitance
PARAMETER MEASUREMENT INFORMATION
TEST S1
TPLH/TPHL
TPLZ/TPZL
TPHZ/TPZH
Open
6V
GND
FIGURE 2. PULSE DURATION
1000601
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 9 Páginas | |
| PDF Descargar | [ Datasheet 54LVTH244A.PDF ] | |
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