I looking for a 12.5 mm, 6 digit ( 7 segment) LCD or LED with 50 pins to be
driven by a MM5453N. I understand that this is late 80s early 90s
technology and woul like to know if anyone knows of a surplus house that has
one or any individual that can sell me one.
73
Hank WD5JFR

"Henry Kolesnik" wrote in message
...
I looking for a 12.5 mm, 6 digit ( 7 segment) LCD or LED with 50 pins to
be
driven by a MM5453N. I understand that this is late 80s early 90s
technology and woul like to know if anyone knows of a surplus house that
has
one or any individual that can sell me one.
73
Hank WD5JFR




MM5453 is a N.S. 4 1/2 digit LCD driver

Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse

This is for a Lowe receiver made in th eUK. Lowe played some tricks and I'm
still trying to figure out how they did it but the HF-225/235 can display
frequencies up to 29.999Mhz and show limited status on the first digits
using selected segments using a 5453. which can control 33 segments.

--

73
Hank WD5JFR
"N Cook" wrote in message
...
"Henry Kolesnik" wrote in message
...
I looking for a 12.5 mm, 6 digit ( 7 segment) LCD or LED with 50 pins to
be
driven by a MM5453N. I understand that this is late 80s early 90s
technology and woul like to know if anyone knows of a surplus house that
has
one or any individual that can sell me one.
73
Hank WD5JFR




MM5453 is a N.S. 4 1/2 digit LCD driver

Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse

I think I have it figured out. The Lowe HF-235 radio can tune up to
X29.999MHz, where X is used as a status indicator and driven by an
exclusive-or gate. For display of frequency the leading or most significant
digit of the five can only be a one or a two. For a one bits 31 and 32
drive segments b and c. Segments a,d,e,g are tied together and bits 31 and
33 would make a 2. So if I'm using the correct terminology the 5453 is
driving a 4 1/2 digit display that has 6 digits where X is driven by another
chip and the next digit can only be a one or a two.
So I need to find a 6 digit LCD with 50 pins that match. Any ideas
appreciated.
tnx

73
Hank WD5JFR
"Henry Kolesnik" wrote in message
. ..
This is for a Lowe receiver made in th eUK. Lowe played some tricks and
I'm still trying to figure out how they did it but the HF-225/235 can
display frequencies up to 29.999Mhz and show limited status on the first
digits using selected segments using a 5453. which can control 33
segments.

--

73
Hank WD5JFR
"N Cook" wrote in message
...
"Henry Kolesnik" wrote in message
...
I looking for a 12.5 mm, 6 digit ( 7 segment) LCD or LED with 50 pins to
be
driven by a MM5453N. I understand that this is late 80s early 90s
technology and woul like to know if anyone knows of a surplus house that
has
one or any individual that can sell me one.
73
Hank WD5JFR




MM5453 is a N.S. 4 1/2 digit LCD driver

Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse

I think I have it figured out. The Lowe HF-235 radio can tune up to
X29.999MHz, where X is used as a status indicator and driven by an
exclusive-or gate. For display of frequency the leading or most significant
digit of the five can only be a one or a two. For a one bits 31 and 32
drive segments b and c. Segments a,d,e,g are tied together and bits 31 and
33 would make a 2. So if I'm using the correct terminology the 5453 is
driving a 4 1/2 digit display that has 6 digits where X is driven by another
chip and the next digit can only be a one or a two.
So I need to find a 6 digit LCD with 50 pins that match. Any ideas
appreciated.
tnx

73
Hank WD5JFR
"N Cook" wrote in message
...
"Henry Kolesnik" wrote in message
...
I looking for a 12.5 mm, 6 digit ( 7 segment) LCD or LED with 50 pins to
be
driven by a MM5453N. I understand that this is late 80s early 90s
technology and woul like to know if anyone knows of a surplus house that
has
one or any individual that can sell me one.
73
Hank WD5JFR




MM5453 is a N.S. 4 1/2 digit LCD driver

Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse