help needed to identify an IC

[Jerry]

Hello, I have an IC I want to identify. Here's the problem. I have a
machine that uses a Xenon pulsed arc light, the markings have been
ground off by the vendor of the machine. The ic is mounted on a small
pcb with a four pin connector and to be replaced when the bulb is
replaced to reset a use counter. The IC appears to be used to count the
bulb usage somehow and trigger an indicator when the bulb needs to be
replaced. The (non US) machine vendor is no longer in business and I
can't get the ic board anymore. The bulbs are std and readily available
so I want to either reset or replace the ic board.

The IC is an 8 pin DIL with a semicircle notch at one end. With
semicircle marker at the top, all the left hand (four) pins and pin 2
down from the marker on the right side are wired together and onward to
one of the connector pins. The remaining three pins on the right, 1,3,4
down from the semicircle marker each go to one of the remaining pins on
the connector.

I've not yet opened up the machine to see what the board connects to.

Any ideas appreciated..

 

[Andrew Holme]

Hello, I have an IC I want to identify. Here's the problem. I have a
machine that uses a Xenon pulsed arc light, the markings have been
ground off by the vendor of the machine. The ic is mounted on a small
pcb with a four pin connector and to be replaced when the bulb is
replaced to reset a use counter. The IC appears to be used to count the
bulb usage somehow and trigger an indicator when the bulb needs to be
replaced. The (non US) machine vendor is no longer in business and I
can't get the ic board anymore. The bulbs are std and readily available
so I want to either reset or replace the ic board.

The IC is an 8 pin DIL with a semicircle notch at one end. With
semicircle marker at the top, all the left hand (four) pins and pin 2
down from the marker on the right side are wired together and onward to
one of the connector pins. The remaining three pins on the right, 1,3,4
down from the semicircle marker each go to one of the remaining pins on
the connector.

I've not yet opened up the machine to see what the board connects to.

Any ideas appreciated..

Sounds like an I2C EEPROM.

 

[[email protected]]

Why not do without the IC board and install an hour meter to show time
usage?

 

[Jamie]

Hello, I have an IC I want to identify. Here's the problem. I have a
machine that uses a Xenon pulsed arc light, the markings have been
ground off by the vendor of the machine. The ic is mounted on a small
pcb with a four pin connector and to be replaced when the bulb is
replaced to reset a use counter. The IC appears to be used to count the
bulb usage somehow and trigger an indicator when the bulb needs to be
replaced. The (non US) machine vendor is no longer in business and I
can't get the ic board anymore. The bulbs are std and readily available
so I want to either reset or replace the ic board.

The IC is an 8 pin DIL with a semicircle notch at one end. With
semicircle marker at the top, all the left hand (four) pins and pin 2
down from the marker on the right side are wired together and onward to
one of the connector pins. The remaining three pins on the right, 1,3,4
down from the semicircle marker each go to one of the remaining pins on
the connector.

I've not yet opened up the machine to see what the board connects to.

Any ideas appreciated..

it's a PIC or AVR tiny chip..

 

[Colin]

Hello, I have an IC I want to identify. Here's the problem. I have a
machine that uses a Xenon pulsed arc light, the markings have been
ground off by the vendor of the machine. The ic is mounted on a small
pcb with a four pin connector and to be replaced when the bulb is
replaced to reset a use counter. The IC appears to be used to count the
bulb usage somehow and trigger an indicator when the bulb needs to be
replaced. The (non US) machine vendor is no longer in business and I
can't get the ic board anymore. The bulbs are std and readily available
so I want to either reset or replace the ic board.

The IC is an 8 pin DIL with a semicircle notch at one end. With
semicircle marker at the top, all the left hand (four) pins and pin 2
down from the marker on the right side are wired together and onward to
one of the connector pins. The remaining three pins on the right, 1,3,4
down from the semicircle marker each go to one of the remaining pins on
the connector.

I've not yet opened up the machine to see what the board connects to.

Any ideas appreciated..

At first I thought PIC, but it would not be connected as described by you.
It is almost certainly a EEPROM, such as 24C16 or similar.
However, just changing it is unlikely to help.
It was probably preprogrammed by the manufacturer before installation as
most of them are.

 

[Jerry]

At first I thought PIC, but it would not be connected as described by
you. It is almost certainly a EEPROM, such as 24C16 or similar.
However, just changing it is unlikely to help.
It was probably preprogrammed by the manufacturer before installation
as most of them are.

Thanks to all who replied. It is an I2C eeprom, I think a 24Cxx. I'm
going to try and make a reader/programmer and see if I can't read what's
on there and figure out what the programming might be.

thanks again