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MC74VHCT240ADT 参数 Datasheet PDF下载

MC74VHCT240ADT图片预览
型号: MC74VHCT240ADT
PDF下载: 下载PDF文件 查看货源
内容描述: 八路总线缓冲器/线路驱动器 [Octal Bus Buffer/Line Driver]
分类和应用: 总线驱动器总线收发器
文件页数/大小: 6 页 / 172 K
品牌: ONSEMI [ ON SEMICONDUCTOR ]
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MC74VHCT240A
SWITCHING WAVEFORMS
3V
3V
A or B
tPHL
YA or YB
1.5V
1.5V
GND
tPLH
VOH
VOL
YA or YB
YA or YB
OEA or OEB
1.5V
tPZL
1.5V
tPZH
1.5V
tPHZ
tPLZ
GND
HIGH
IMPEDANCE
VOL +0.3V
VOH –0.3V
HIGH
IMPEDANCE
Figure 1.
Figure 2.
TEST CIRCUITS
TEST POINT
OUTPUT
DEVICE
UNDER
TEST
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 kΩ
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
CL*
CL*
* Includes all probe and jig capacitance
* Includes all probe and jig capacitance
Figure 3. Test Circuit
Figure 4. Test Circuit
INPUT
Figure 5. Input Equivalent Circuit
MOTOROLA
4
VHC Data – Advanced CMOS Logic
DL203 — Rev 1