Hi.

Somebody knows which is the diference betwen Atmega88-16PU and Atmega88-16PI..???

Since now thanks!!

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Message

Hi.

Somebody knows which is the diference betwen Atmega88-16PU and Atmega88-16PI..???

Since now thanks!!

Wanna bet it is explained in the datasheet?

- Jani

You might check temperature range. Or, maybe voltage range. Or, maybe maximum oscillator frequency. Or, maybe, something else.

It will likely be one of these!

Jim

OBHWGA!!

As Nard says:"T & S" :)

My advice to the OP: RTFDS....It's at the end

Jim

PU, I think, is the smelly version.

No, seriously though, I think it has to do with the fact that one is ROHS compliant, and the other is not. As the others have mentioned, it's all explained in the datasheet, in the ordering information section.

but the only diference that I can see in the datasheet is that the Atmega88-20PU is Pb-free packaging.

I want to now if exist some diference in the performance or operation.

Sorry.I want not do waste your time

Quote:

PU, I think, is the smelly version.

PI is the sneaky version.

[or: PI are the round version; CAKE are the square version. "Pie are squared?" "Nope, pie are round."]

Acronym Definition

PI Per Inquiry

PI Politically Incorrect

PI Private Investigator

PI Blood Clotting

PI International Protocol

Pi Ionized Phosphorus

PI Istiqlal Party (Independence Party, Morocco)

PI Pacific Institute

PI Pacific Internet (Internet Service Provider)

PI Package Insert (medications)

PI Packet Interface

PI Paducah & Illinois Railroad

PI Paedagogisches Institut (Vienna, Austria)

PI Page Impression (Internet advertising)

PI Page Interleaving

PI Paging (assembly language ASM51 assembler control)

PI Pampers Institute (UK)

PI Panicle Initiation

PI Paper Insulated

PI Par Intérim (French: Deputizing)

PI Paradigm Infinitum (Singapore)

PI Parallel Interface

PI Parameter Identifier (ITU-T)

PI Parameter Indicator

PI Paranoid Ideation

PI Paranormal Investigator

PI Parent Initial

PI Parents for Inclusion

PI Parris Island

PI Particular Integral

PI Partner Institution

PI Pass Interference (football)

PI Passes Intercepted (soccer)

PI Passive Intercept

PI Patente de Invenção (Patent, Brazil)

PI Paternity Index

PI Payload Integrator

PI Pearl Islands (Hawaii)

PI Penile Implant

PI Pentium I (Intel)

PI Per Inch

PI Perception Immédiate (French)

PI Perceptually Impaired

PI Perforated Initials (philately)

PI Performance Improvement

PI Performance Index

PI Performance Indicator

PI Performance Insight (Oracle)

PI Perimeter Institute for Theoretical Physics

PI Periodic Inspection

PI Peripheral Iridotomy

PI Perlite Institute (Staten Island, NY)

PI Perpetual Inventory

PI Personal Identifier

PI Personal Injury (legal)

PI Personal Investigator (less common)

PI Petroleum Institute

PI Phase I (clinical studies)

PI Philippine Islands (slang)

PI Phosphate (Inorganic)

PI Phosphorus Index

PI Photo Interpretation

PI Photo Interpreter

PI PhotoImpact (digital imaging software)

PI Physical Inventory

PI Physically Impaired

PI Physician Information

PI Physicist Interface

PI Physics International

PI Physik Instrumente

PI Piaui (Brazil)

PI Pinellas (plant; Florida)

PI Pinneberg (auto license plate)

PI Pisa (Tuscany, Italy)

PI Planet Internet

PI Plant Industry (CSIRO)

PI Plant Information (real-time software products such as SCADA)

PI Plant Integrity

PI Plasticity Index

PI Platform Initialization (Specification)

PI Please Inquire

PI Pleasure Island (Disney World)

PI Plouffe's Inverter

PI Plug In

PI Point Initiating

PI Point of Impact

PI Point of Inflection (engineering)

PI Point of Intersection

PI Poison Ivy

PI Police Interceptor

PI Policy and International Affairs

PI Policy Issuance (insurance)

PI Polyisocyanurate (rigid foam contruction material)

PI Polynomial Identity (mathematics)

PI Ponderal Index

PI Population Institute

PI Portable Interceptors

PI Position Indicator

PI Post Inoculation

PI Post Intelligencer (newspaper, Seattle, Washington)

PI Postinjection

PI Power Integrations

PI Power Interface

PI Precision Instrument

PI Précompte Immobilier (French: tax on real estate)

PI Predictive Index

PI Preliminary Injunction

PI Presque Isle (Michigan)

PI Pressure Indicator (industrial control description)

PI Price Integrity

PI Primary Investigations

PI Prime Implicant

PI Principal Insured

PI Principal Investigator

PI PrintImage International

PI Priority Inheritance

PI Privacy International (human rights group)

PI Private Idaho

PI Process & Instrumentation

PI Process Improvement

PI Process Industries

PI Processing Instruction

PI Procurement Instruction

PI Product Improvement

PI Product Information

PI Product Integration

PI Product Integrity

PI Productivity Increase

PI Professional Indemnity (insurance coverage)

PI Professional Informant

PI Profil Infirmier

PI Profitability Index

PI Proforma Invoice

PI Program Identification

PI Program Index

PI Program Information

PI Program Instructions

PI Program Integrity

PI Program Interruption

PI Program Isolation (IBM)

PI Programmed Instruction

PI Project Identification (number)

PI Projector Infantry

PI Projets Individuels

PI Propidium Iodide

PI Proportional-Integral (controller)

PI Propriedade Intelectual (Intellectual Property, Brazil)

PI Prospective Internationale

PI Protease Inhibitor

PI Protocol Interpreter

PI Psicología Integrada (Portugese)

PI Psykoterapiinstitut (Stockholm, Sweden)

PI Public Information

PI Public Intoxication (law enforcement)

PI Pulsatility Index

PI Pulse Inverter

PI Punto Informatico

PI Purchasing Instruction

PI Pursuit Inc.

PI Pusat Informasi (Indonesian: Information Center)

pi [not an acronym] name for Greek symbol representing the ratio of the circumference of a circle to its diameter; approximately 3.1416

pI Isoelectric Point (chemistry)

Acronym Definition

PU Pickup (truck)

PU [not an acronym] Ugly, Noxious, Shocking, Smelly, or Odious

PU Guinea-Bissau

PU Pacific University

PU Packaged Unit

PU Panjab University (Chandigarh, India)

PU Parental Unit

PU Participating Unit

PU Partido Unionista (Guatemala, political party)

PU Pass Urine

PU Pedo University (internet pedophile ring)

PU Peking University

PU Pen Up (Hyper Logo Turtle graphics command)

PU Per Unit

PU Performance Unit

PU Phillips University (Enid, Oklahoma)

PU Physical Unit (IBM)

PU Pick Up (oil drilling)

PU Pig Urine

PU Pluna Lineas Aereas Urugauyas (Uruguay, IATA airline code)

PU Plutonium

PU Polyurethane

PU Polyuria

PU Power Unit

PU Power Up

PU Pricing Unit (airfare construction)

PU Princeton University

PU Printer Unit

PU Process Utility

PU Processing Unit

PU Processor Utilisation

PU Processor Utility

PU Program Unit

PU Propellant Utilization

PU Proto-Uralic (linguistics)

PU Prototype Unit

PU Public Utility

PU Pula, Croatia (license plate)

PU Punjab University (Lahore, Pakistan)

PU Purdue University

PU Push Up

PU University of the Punjab (Lahore, Pakistan)

I didn't see ANY of those in the back of the datasheet!

Quote:

I didn't see ANY of those in the back of the datasheet!

At the end of the source page (which I forgot to credit) you can add your own--have at it, Bob.

http://acronyms.thefreedictionar...

but the only diference that I can see in the datasheet is that the Atmega88-20PU is Pb-free packaging.

I want to now if exist some diference in the performance or operation.

Sorry.I want not do waste your time

Well that must be it then. Actually now that the lead-free thing is mentioned, I remember something about those codes doing with lead-free things.

I don't see how being lead-free would affect the performance or operation in any way.

- Jani

Quote:

"Pie are squared?" "Nope, pie are round."

Cornbread are square.

Squared pie is (roughly) 72.92726259 .

You need a PID controller for Pie Squarer,

That, or your "roughly" is rougher than mine...

JC

Level: Posting Freak

Joined: Wed. Feb 14, 2007

Posts: 1823 View posts

Location: San Diego California

Squared pie is (roughly) 72.92726259 .

John

Quote:

your "roughly" is rougher than mine...

I claim that the number is correct to at least 6 decimal places. You need to think outside the box (a box being an arrangement of six squares, while we're at it).

The pid you are talking about might be used to calculate the circumference of a non-squared pie.

Level: Posting Freak

Joined: Wed. Feb 14, 2007

Posts: 1823 View posts

Location: San Diego California

Quote:

your "roughly" is rougher than mine...

I claim that the number is correct to at least 6 decimal places. You need to think outside the box (a box being an arrangement of six squares, while we're at it).

The pid you are talking about might be used to calculate the circumference of a non-squared pie.

Which means you’re even sicker than we all suspected!!

I love this site,

John

Quote:

a box being an arrangement of six squares, while we're at it

Maybe 'rectangles' would cover the category a little better.

Quadrilateral Parallepipeds?

Quote:

Squared pie is (roughly) 72.92726259 .

You dangled it out there and I had to bite...

Now I'm going to be up half the night because if I haven't figured it out yet it isn't likely to come to me in the next 10 minutes, either... :?

JC

Level: Moderator

Joined: Wed. Mar 28, 2001

Posts: 29848 View posts

Location: Sydney, Australia (Gum trees, Koalas and Kangaroos, No Edelweis, but plenty of Corona beer)

Quote:

We have them here too, but the round onse are more common...not sure of the price though. Is that 72 euros for a pie?? Robbery!!
Squared pie is (roughly) 72.92726259 .

Level: Posting Freak

Joined: Wed. Feb 14, 2007

Posts: 1823 View posts

Location: San Diego California

Freaks have humor on so many levels once you figure it out.

You guys always crack me up!

John

Johan,

I think I have reviewed every possible permutation for circumferences, areas, volumes, and hyper-volumes in 2, 3, and 4 dimensional space for pie and related objects.

Quite a waste of time, really.

I now get it, and I haven't stopped laughing.

Some days I'm just dumber than others...

JC

You guys refer to Pi R^2... I half way get that.

At work I often refer to Power consumption in terms of I^2R. I'm always asked why that is. So, I pretty much default to explaining the I^2R formula from the mathematical point of reference using Ohms Law in the form:

P = E * I E = I * R

Substituting:

P = (I * R) * I

And finally:

P = I^2R

The really funny thing is that, even after providing the mathematical method, those guys still think I talking about myself. You just have to wonder why?

It might be that I slipped and said IR^2...

Last Edited: Sun. Apr 6, 2008 - 03:32 AM

Level: Posting Freak

Joined: Wed. Feb 14, 2007

Posts: 1823 View posts

Location: San Diego California

Carl that's very funny story, I enjoyed that.

John

I'm still lost, but then several have opined that I sacrifice quality for quantity.

Level: Posting Freak

Joined: Wed. Feb 14, 2007

Posts: 1823 View posts

Location: San Diego California

OK Guys, You’re thinking of the joke as trying to solve an equation for the precise answer. Way over examining it!

Here was the joke as I took it.

Square Pie = 72.92726259

Instantly calculated an estimate and saw a derivative of pie 3.141… squared * maybe 8 contained in the number.

I Didn’t bother from that moment on to calculate the actual answer!!!!

I got the joke regardless of the answer!

Pie Squared! = Square Pie like the one you eat.

That's the Joke! How he derived the exact abstract answer is not important to the joke, at least to me it was and still cracks me up!!

Cheers,

John

PS:

See: mental condition required for humor here!

Sure definitely there are difference in price :mrgreen:

Insipred by a recent thread I have decided to finally publish the proof for

Quote:

Squared pie is (roughly) 72.92726259

Here you go..