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PDF U74LVC244 Data sheet ( Hoja de datos )
| Número de pieza | U74LVC244 | |
| Descripción | OCTAL BUFFER/DRIVER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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UNISONIC TECHNOLOGIES CO., LTD
U74LVC244
OCTAL BUFFER/DRIVER WITH
3-STATE OUTPUTS
DESCRIPTION
The UTC U74LVC244 contains two 4-bit line drivers with
separate output-enable ( OE ) inputs. When OE is low, the
device passes data from the A to the Y. When OE is high, the
outputs are in the high-impedance state.
The UTC U74LVC244 can be used in a mixed 3.3V/5V system
environment.
FEATURES
* Operate From 1.65V to 3.6V
* Input Accept Voltages to 5.5V
* Partial-Power-Down Mode Operation
* Max tpd is 5.9ns at 3.3V
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U74LVC244L-S20-R
U74LVC244G-S20-R
U74LVC244L-P20-R
U74LVC244G-P20-R www.DataSheet.net/
Package
SOP-20
TSSOP-20
CMOS IC
Packing
Tape Reel
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-245.C
Datasheet pdf - http://www.DataSheet4U.co.kr/
1 page  
U74LVC244
TEST CIRCUIT AND WAVEFORMS
CMOS IC
VCC
1.5V
1.8V±0.15V
2.5V±0.2V
2.7V
3.3V±0.3V
VIN
VCC
VCC
VCC
2.7V
2.7V
tR/tF
≤2ns
≤2ns
≤2ns
≤2.5ns
≤2.5ns
VM V△ CL
VCC/2
VCC/2
VCC/2
1.5V
1.5V
0.1V
0.15V
0.15V
0.3V
0.3V
15pF
30pF
30pF
50pF
50pF
Fig-1 Load circuitry
RL
2KΩ
1KΩ
500Ω
500Ω
500Ω
tPLH/tPHL
OPEN
OPEN
OPEN
OPEN
OPEN
VEXT
tPZH/tPHZ
GND
GND
GND
GND
GND
tPZL/tPLZ
2*VCC
2*VCC
2*VCC
6V
6V
www.DataSheet.net/
Fig-2 Propagation delay waves
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-245.C
Datasheet pdf - http://www.DataSheet4U.co.kr/
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet U74LVC244.PDF ] | |
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