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| 74HC_HCT4851_15 Datasheet, PDF (12/20 Pages) NXP Semiconductors – 8-channel analog multiplexer/demultiplexer with injection-current effect control | |||
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NXP Semiconductors
74HC4851; 74HCT4851
8-channel analog MUX/DEMUX with injection-current effect control
VI
Sn input
GND
VCC
Yn or Z
output
GND
VM
tPLH
VM
Measurement points are given in Table 10.
Fig 11. Input (Sn) to output (Yn, Z) propagation delays
tPHL
001aah575
VI
E input
0V
VCC
Z or Yn output
VOL
VOH
Z or Yn output
GND
VM
tPLZ
tPHZ
VX
VY
VM
tPZL
VM
tPZH
VM
switch ON
switch OFF
switch ON
001aah576
Measurement points are given in Table 10.
Logic levels: VOL and VOH are typical output voltage levels that occur with the output load.
Fig 12. Enable and disable times
Table 10. Measurement points
Type
Input
VM
74HC4851
0.5VCC
74HCT4851
1.3 V
VI
VCC
3.0 V
Output
VM
0.5VCC
0.5VCC
VX
VOL + 0.1(VCC â VOL)
VOL + 0.1(VCC â VOL)
VY
0.9VOH
0.9VOH
74HC_HCT4851_2
Product data sheet
Rev. 02 â 2 September 2008
© NXP B.V. 2008. All rights reserved.
12 of 20
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