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HD74HCT244P 参数 Datasheet PDF下载

HD74HCT244P图片预览
型号: HD74HCT244P
PDF下载: 下载PDF文件 查看货源
内容描述: 八路缓冲器/线路驱动器/线接收器(带倒3态输出) [Octal Buffers/Line Drivers/Line Receivers (with inverted 3-state outputs)]
分类和应用: 驱动器逻辑集成电路光电二极管
文件页数/大小: 7 页 / 101 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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HD74HCT244
Waveforms
Waveform – 1
t
r
90 %
1.3 V
10 %
t
PLH
90 %
Output Y
1.3 V
10 %
t
TLH
90 %
1.3 V
10 %
t
PHL
90 %
1.3 V
10 %
t
THL
t
f
V
CC
0V
Input A
V
OH
V
OL
Waveform – 2
90 %
1.3 V
t
f
t
r
90 %
1.3 V
10 %
t
ZL
10 %
t
LZ
V
CC
0V
V
OH
Input G
Waveform – A
t
ZH
Waveform – B
1.3 V
t
HZ
10 %
V
OL
V
OH
V
OL
1.3 V
90 %
Notes : 1. Input waveform : PRR
1 MHz, duty cycle 50%, t
r
6 ns, t
f
6 ns
2. Waveform– A is for an output with internal conditions such that the
output is low except when disabled by the output control.
3. Waveform– B is for an output with internal conditions such that the
output is high except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.2.00 Mar 30, 2006 page 4 of 6