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參數(shù)資料
| 型號(hào)： | HD74LVC244 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Octal Buffers / Line Drivers with 3-state Outputs |
| 中文描述： | 八路緩沖器/線路驅(qū)動(dòng)器，三態(tài)輸出 |
| 文件頁(yè)數(shù)： | 7/9頁(yè) |
| 文件大?。?/td> | 47K |
| 代理商： | HD74LVC244 |
HD74LVC244A
7
Waveforms – 2
V – 0.3 V
V + 0.3 V
t
ZL
t
LZ
t
ZH
t
HZ
t
f
t
r
90 %
10 %
90 %
V
ref
10 %
V
OH
V
OL
GND
Input G
Waveform - A
Waveform - B
V
ref
V
ref
V
ref
V
IH
≈
V
OL1
≈
V
OH1
TEST
V
IH
V
ref
V
OH1
V
OL1
1.5 V
3 V
GND
50%Vcc
Vcc
GND
2.7 V
Vcc
Vcc=2.7V,
3.3
±
0.3V
Vcc=5.0
±
0.5V
Notes:
1.
2.
3.
t
r
= 2.5 ns, t
f
= 2.5 ns
Input waveform : PRR = 10 MHz, duty cycle 50%
Waveform – A shows input conditions such that the output is "L" level when enable by the
output control.
Waveform – B shows input conditions such that the output is "H" level when enable by the
output control.
4.
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