A
AnyBody43
Guest
Hi,
Can anyone please help me to locate information regarding
IC with the following number on top 78P156.
Ideally I would like a data sheet. (Pinout, functional diagram).
It has 18 pins in the same sort of package as I would expect to get
an original 74LSxxx. There is no (obvious) manufacturers name.
I have searched extensively but have had no luck in locating
any info.
http://www.doom.com/
and
www.usbid.com/catalog1/page.cfm/781/4
are the only real Google hits and I can find no information
through these routes.
There seems to be a family
78P156 78P156BP 78P156ELM 78P156ELP 78P156EM
That's all I can find out.
It provides all of the logic for a home assembly kit black line
following "mouse" with motors, optical sensors etc. I expect that it
is a some sort of digital logic chip. There are external transistors
to drive the motors (in cascaded pairs which I can't recall the
technical jargon for) and the optical inputs are Photo Transistors
which pull the input lines low against pull up resistors to VCC.
I remembered, "Darlington pair" I tell you I am impressed.
Thanks.
Can anyone please help me to locate information regarding
IC with the following number on top 78P156.
Ideally I would like a data sheet. (Pinout, functional diagram).
It has 18 pins in the same sort of package as I would expect to get
an original 74LSxxx. There is no (obvious) manufacturers name.
I have searched extensively but have had no luck in locating
any info.
http://www.doom.com/
and
www.usbid.com/catalog1/page.cfm/781/4
are the only real Google hits and I can find no information
through these routes.
There seems to be a family
78P156 78P156BP 78P156ELM 78P156ELP 78P156EM
That's all I can find out.
It provides all of the logic for a home assembly kit black line
following "mouse" with motors, optical sensors etc. I expect that it
is a some sort of digital logic chip. There are external transistors
to drive the motors (in cascaded pairs which I can't recall the
technical jargon for) and the optical inputs are Photo Transistors
which pull the input lines low against pull up resistors to VCC.
I remembered, "Darlington pair" I tell you I am impressed.
Thanks.