 English |
|
|
|
|
|
|
|
| MC74VHCT257A_11 Datasheet, PDF (5/8 Pages) ON Semiconductor – Quad 2-Channel Multiplexer with 3-State Outputs | |||
| |||
| ◁ |
MC74VHCT257A
VCC
A, B or S
50%
GND
tPLH
tPHL
Y
50% VCC
Figure 5. Switching Waveform
VCC
OE
50%
GND
tPZL
tPLZ
HIGH
Y
50% VCC
IMPEDANCE
VOL + 0.3V
tPZH
tPHZ
VOH - 0.3V
Y
50% VCC
HIGH
IMPEDANCE
Figure 6. Switching Waveform
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 7. Test Circuit
DEVICE
UNDER
TEST
TEST POINT
1 kW
OUTPUT
CL *
CONNECT TO VCC WHEN
TESTING tPLZ AND tPZL.
CONNECT TO GND WHEN
TESTING tPHZ AND tPZH.
*Includes all probe and jig capacitance
Figure 8. Test Circuit
INPUT
Figure 9. Input Equivalent Circuit
ORDERING INFORMATION
Device
Package
Shippingâ
MC74VHCT257ADG
SOICâ16
(PbâFree)
48 Units / Rail
MC74VHCT257ADR2G
SOICâ16
(PbâFree)
2500 Tape & Reel
MC74VHCT257ADTG
TSSOPâ16*
96 Units / Rail
M74VHCT257ADTR2G
TSSOPâ16*
2500 Tape & Reel
MC74VHCT257AMG
SOEIAJâ16
(PbâFree)
50 Units / Rail
â For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently PbâFree.
http://onsemi.com
5
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese