Part Number: SN74AHC4066 Other Parts Discussed in Thread: TMUX1511 We use SN74AHC4066 ( QFN − RGY) in our product to switch signals between camera and lens. Power supply from camera is 5V, signal levels are normally in 0 - 5V range.
The problem is…
PCN 20230621004.3 said that the SN74HC4066PWR would be discontinued. PCN 20230621004.3B corrected this; only the tube and small reel packaging options of the SN74AHC4066/SN74HC4066 will be discontinued. The large reel variants (with R suffix) stay active…
Rushi,
The package suffix D, DB, DGV, N, NS, OR PW are TI naming convention to differentiate a package type (PDIP,SOIC, QFN, etc), pin pitch, and package height.
You can search all of TI package drawings by common industry package terms like Plastic Dual Inline…
Koji,
You are correct we a -3V signal violates the recommend operating conditions stated in the datasheet 0V to Vcc. Placing -3V on the I/O path of the SN74AHC4066 also violates the absolute recommended operating condition and could cause permanent damage…
When VCCB is powered down, all I/O pins have high impedance.
With the B voltages being higher, it looks as if something on the B side pulls the line up.
If you just want to isolate the two devices, use a plain switch like SN74CB3Q3245 (which blocks voltages…
In theory, pulling OE low should disable everything. Please show the schematic.
(And it still would be a better idea to use an analog switch like the SN74AHC4066.)
Part Number: TXS0104E Other Parts Discussed in Thread: SN74LVC2G66 , SN74AHC4066 MCU (MCU_3.3V)---uart----TXS0104E---uart---FPGA(FPGA_3.3V); IN my system , i'm use the TXS0104E to isolate UArt signal . the mcu_3.3V rise first ,and long time later t…
