NEC ?microcontroller? identification help

[Brian]

I have a display/keypad board from a Brother thermal all-in-one
machine, circa 1995/6 with a chip that I'd love to have identified.

The chip is marked as follows:

NEC Japan
UG3006
9542EX007
PNL

....and is in a 44-QFP package, running off 5V.

I'm guessing that it's a microcrocontroller because it's directly
connected to an LCD that appears to be 44780 compatible (it's chip on
glass, so I can't tell for sure) as well as a keypad matrix, some LEDs
and 3 I/O? lines that connect it to the printer's main board.

Any hints as to the nature of this beast would be greatly appreciated.
An exhaustive Google search last night proved fruitless.

-Sparky

 

[Spehro Pefhany]

On 30 Sep 2004 07:46:33 -0700, the renowned sparky961_on@yahoo.ca
(Brian) wrote:

I have a display/keypad board from a Brother thermal all-in-one
machine, circa 1995/6 with a chip that I'd love to have identified.

The chip is marked as follows:

NEC Japan
UG3006
9542EX007
PNL

...and is in a 44-QFP package, running off 5V.

I'm guessing that it's a microcrocontroller because it's directly
connected to an LCD that appears to be 44780 compatible (it's chip on
glass, so I can't tell for sure) as well as a keypad matrix, some LEDs
and 3 I/O? lines that connect it to the printer's main board.

Any hints as to the nature of this beast would be greatly appreciated.
An exhaustive Google search last night proved fruitless.

-Sparky

Dunno, but most standard NEC microcontroller names start with "uPD",
where u represents the greek letter mu.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com

 

[Roger Hamlett]

"Spehro Pefhany" <speffSNIP@interlogDOTyou.knowwhat> wrote in message
news:ruaol09603arf1v5hrc07ctcc7r49tirko@4ax.com...

On 30 Sep 2004 07:46:33 -0700, the renowned sparky961_on@yahoo.ca
(Brian) wrote:

I have a display/keypad board from a Brother thermal all-in-one
machine, circa 1995/6 with a chip that I'd love to have identified.

The chip is marked as follows:

NEC Japan
UG3006
9542EX007
PNL

...and is in a 44-QFP package, running off 5V.

I'm guessing that it's a microcrocontroller because it's directly
connected to an LCD that appears to be 44780 compatible (it's chip on
glass, so I can't tell for sure) as well as a keypad matrix, some LEDs
and 3 I/O? lines that connect it to the printer's main board.

Any hints as to the nature of this beast would be greatly appreciated.
An exhaustive Google search last night proved fruitless.

-Sparky

Dunno, but most standard NEC microcontroller names start with "uPD",
where u represents the greek letter mu.
I have seen several chips with this type of number 'structure', from NEC.

Many were custom. However HKinventory, do list a UG3006, made by NEC, and
used by about half a dozen people, in the right package.

Best Wishes