HD151015 9 bit Level Shifter/Transceiver With 3 State Outputs ADE-205-039C (Z) 3rd.
Edition Jun.
1993 Description The HD151015 is an IC which consists of 9 bus transceivers (three state output) in a 24 pin package.
Signals are transmitter from A to B when the direction control input (DiR) is at a high level, and from B to A when DiR is at a low level.
When the enable input ( G) is high, A and B are isolated.
And this product has two terminals (V CCA, VCCB), VCCA is connected with control input and A bus side, VCCB is connected with B bus side.
VCCA and V CCB are isolated.
Consequently, it is best to change the level in case of two supply voltage coexist on one board and application of power...

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