PB megaAVR announced

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Home > About Atmel > Press Room

Releases

Atmel Launches Next-Generation Low-power 8-bit AVR MCUs

Accelerating Development of Low-Power Applications, New megaAVRs Deliver Low Power, Additional Analog Functionality and Pin-to-Pin Compatibility For Designers of All Levels for Smart, Connected Designs

San Jose, CA, November 11, 2014

http://www.atmel.com/about/news/release.aspx?reference=tcm:26-64316

...

New Features

- Unique ID for every device enabling a more secure device for IoT applications and wireless networks
- Improved accuracy of internal oscillators for UART serial communications
- Improved accuracy of internal voltage reference for better analog-to-digital conversion results

...

Development Kits and Ecosystem

(Xplained Mini)

...

Availability

The Atmel mega168PB, mega88PB and mega48PB are available in 32-pin QFN and QFP packages with additional devices available later this year. All devices are sampling now. Production quantities for the mega168PB devices are available now while the mega88PB and ATmega48PB devices are available in February 2015.

...

Home > Products > Microcontrollers > AVR 8- and 32-bit MCUs

ATmega168PB Xplained Mini

http://www.atmel.com/tools/mega168pb-xmini.aspx

Home > Products > Microcontrollers > AVR 8- and 32-bit MCUs > megaAVR MCUs

ATmega168PB

http://www.atmel.com/devices/atmega168pb.aspx

Digi-Key has stock.

http://www.findchips.com/search/atmega168pb

"Dare to be naïve." - Buckminster Fuller

Last Edited: Thu. Nov 13, 2014 - 05:01 AM
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Interesting.  Especially the pricing--quite a drop from A.  (AVR8 prices jumped maybe 30% in the past few months.  Perhaps with the lower-cost B line coming out, it makes sense...)

 

Putting aside the pricing, what do we learn from the product announcement?  Low power; unique ID; improved USART.

 

What are the errata?

12.3.1 Rev. A
– Wrong device ID when using debugWire
– Power consumption in power save modes
– USART start-up functionality not working

 

Parts in stock, and no full datasheet posted?!?

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Newark is showing no stock, and pricing of 127c for qty 1000+.

The 168PA-MMH is on special for 154c at qty 1.

 

I have no special talents.  I am only passionately curious. - Albert Einstein

 

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What I can't figure out is whether it has an internal 32khz RTC, or is it just the old async timer support with a 32khz external crystal?

"Power-save Mode: <1.0μA (Including 32kHz RTC)"

 

I have no special talents.  I am only passionately curious. - Albert Einstein

 

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Newark is showing no stock, and pricing of 127c for qty 1000+.

The 168PA-MMH is on special for 154c at qty 1.

Well, it is still really early for the supply chain to settle out on "real" pricing.  But didja notice that DigiKey is "1,000 0.97179" and the listed reel-of-2000 price is .66 ?

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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I doubt there is an internal RTC (as found in for example Xmega).  From the existing PA datasheets:

 

 

Which is curious, BTW.  The new PB summary:

 

 

How is that better?

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"Read a lot.  Write a lot."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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theusch wrote:
What are the errata?

12.3.3 Rev. C
       No known errata.

"Dare to be naïve." - Buckminster Fuller

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joeymorin wrote:
How is that better?
Sometimes one will hear from the manager "It's good enough".

CR cell leakage is very low; a bit more may not matter other than for the smaller CR.

As the process geometry reduces the leakage increases; keep those old fabs primed and alive.

I'm guessing a process shrink with some improvements (ref, clock) and such.

"Throw us a bone!"

"Dare to be naïve." - Buckminster Fuller

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I can't speak to the better ref, but as for a better clock with process shrink I'm skeptical.  The last process change to the 'A' resulted in worse clock performance.  Older AVR models have a much more stable internal clock (less jitter).  I recall reading material from Atmel which explained the change to the 'A' came with greatly reduced silicon real estate for the oscillator.  This reduced power consumption, but increased clock jitter.  Of course I can't find and threads which support this (search rage!).

 

Something other than process shrink must be behind the improved clock.  However I note that the 'improved clock' makes no mention of jitter, only of finer calibration capability.

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"Read a lot.  Write a lot."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

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It is hard to do much "exploration" without the full datasheet.

 

The mention of "8-channel 10-bit ADC with Temperature Measurement" along with only two listed packages implies "DIP is dead"?
 

 

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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pb isn't that short for lead? Will this product sink?

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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pb isn't that short for lead?

Cannot be installed into products in ROHS countries.

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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theusch wrote:

Newark is showing no stock, and pricing of 127c for qty 1000+.

The 168PA-MMH is on special for 154c at qty 1.

Well, it is still really early for the supply chain to settle out on "real" pricing.  But didja notice that DigiKey is "1,000 0.97179" and the listed reel-of-2000 price is .66 ?

 

Didn't notice that.  The TQFP is usually more expensive than the QFN, not the other way around.  While it would be nice to see them selling for 66c in a full reel, I suspect when the product info and pricing is all settled, the real (no pun intended) price will be closer to $1.

 

I have no special talents.  I am only passionately curious. - Albert Einstein

 

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Revision B of the ATmega48PB/88PB/168PB Preliminary Summary and Complete data sheets are posted at Atmel AVR 8- and 32-bit Microcontrollers What's Changed.

 

Edit: It's interesting that the Summary errata sections of both A and B revisions are identical with the '88PB and '168PB Errata pages being pre-loaded with revisions B and C updates.

 

Stan

Last Edited: Fri. Nov 14, 2014 - 07:53 PM
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Now we have something to dig into. wink

 

From the first page summary:

-- No DIP package

-- Rated to 105 C

-- Power consumption numbers as noted earlier

 

Typical Characteristics, Active Supply Current chart:  1MHz, 5V:  PA ~0.8mA; PB ~0.62mA  <<less for PB

1.8V looks very close between the two charts at about 0.2--certainly not the 0.35 of the first page.

 

20MHz 5V is 9+mA for PA and 12+mA for PB -- indeed about 30% more?  Taking another point, 3.6V/10MHz is also 3mA for PA and 4mA for PB -- consistent.

 

"Sleep Modes" chart has added the USART (start-frame detection) column, and indicates it is applicable to all sleep modes.  However, the text says "The USART start frame detector can wake up the MCU from Power-down, Standby or ADC Noise Reduction sleep mode when it detects a start bit."
 

"VINT Internal Voltage Reference 1.0 1.1 1.2 V"
Same for both?!?  Not according to press release...

 

"Table 30-3. Calibration Accuracy of Internal RC Oscillator"
appears identical in both.  Not according to press release?

 

[If I busted my butt to add an improved feature to this PB initiative, I'd make darned sure that the datasheet reflected my work.]

 

Watchdog oscillator changed--differently-shaped curve vs. temperature.

 

Internal oscillator charts indeed show a much flatter temperature response.  And OSCCAL has a much smaller discontinuity jump, and much more linear frequency w.r.t. OSCCAL value.

 

 

 

 

 

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

Last Edited: Fri. Nov 14, 2014 - 08:27 PM
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A-HA!  I thought I saw something about more I/O pins.  As on the Tiny48 family, four more (more-or-less) GP I/O are gained:

 

PE2/PE3 (ADC6/ADC7)

PE0/PE1  taking over a pair of VCC/GND; one has ACO

 

(no pin-change)

 

Comparing the Register Summary, I see the following differences:

 

-- Port E

-- ACO bit (ACOE bit in new ACSR0)

-- Device ID, in high I/O space (direct access!)  [but in the text the registers are called DIDR0, DIDR1, ... which is a conflict]

-- ADC6D and ADC7D added to DIDR0

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

Last Edited: Fri. Nov 14, 2014 - 09:38 PM
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Thank you for locating the data sheets.

"Dare to be naïve." - Buckminster Fuller

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Wow!

Thank you for pouring over the datasheet!

"Dare to be naïve." - Buckminster Fuller

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Atmel Corporation

AT06609: Differences between ATmega48/88/168 Variants and the New ATmega48/88/168PB

http://www.atmel.com/Images/Atmel-42374-Differences-between-ATmega48_88_168-variants-and-the-new%20ATmega48_88_168PB_APNote_AT06609.pdf

(183KB)

"Dare to be naïve." - Buckminster Fuller

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LOL--I did quite well comparing datasheets.

 

I notice that the DIDRn conflict has been resolved -- the document indicates DEVIDn for the register names.

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Mouser now has this in-stock in QFP :

Mouser Electronics

All Products > Unclassified > Atmel > Atmel ATMEGA168PB-AU

http://www.mouser.com/ProductDetail/Atmel/ATMEGA168PB-AU/?qs=%2fha2pyFadugRfkp7lkJNLcdh4BypYuX8rs6cF%252bIsNoOB0yzsW6iROQ%3d%3d

If QFN then Digi-Key.

theusch wrote:
LOL--I did quite well comparing datasheets.
Thank you for the app note review.

"Dare to be naïve." - Buckminster Fuller

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Mouser now has this in-stock in QFP :

Octopart hasn't caught up to  that yet.  DigiKey has both -AU and -MU.

 

We got a few -AU from DigiKey last month.  Put them into a '48 app.  Re-built, and it worked fine.  Called it a '168PA for build  and skipped the signature check during ISP, and worked fine.

 

Since then, CodeVision has released a version with full build and ISP support, which also works fine.

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Datasheet update :

Atmel Corporation

Home > Products > Microcontrollers > AVR 8- and 32-bit MCUs > megaAVR MCUs

ATmega168PB

http://www.atmel.com/devices/ATMEGA168PB.aspx

 

37.1 Rev.42176C – 03/2015
      1.   “Clock Characteristics” :
           Updated factory calibration accuracy from ±10% to ±3%in ”Calibrated Internal RC Oscillator Accuracy” on page 304.
      2.   “Errata” :
           Updated ”Errata ATmega48PB” on page 349, ”Errata ATmega88PB” on page 350 and ”Errata ATmega168PB” on
           page 351.

 

"Dare to be naïve." - Buckminster Fuller

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PA datasheet:  650 pages, 36MB

PB datasheet:  360 pages, 7MB

 

Does that mean we only get half the features?  Or no-one read half the words in the PA datasheet anyway, so they were removed?

 

[The Typical Characteristics section for the PB hasn't been fleshed out yet, accounting for the discrepancy.]

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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New at What's Changed  http://www.atmel.com/System/whats_changed.aspx?Products=010%20Atmel%20AVR%208-%20and%2032-bit%20Microcontrollers

 

AT12615: Getting Started with ATmega168PB
(file size: 875KB, 16 pages, revision A, updated: 03/2015)

This application note describes how to get started with the

Atmel ATmega168PB microcontroller and documents step by

step how to create a simple project in Atmel Studio 6.2.

 

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More via "What's Changed" is a 32kB version :

Atmel Corporation

Home > Products > Microcontrollers > AVR 8- and 32-bit MCUs > megaAVR MCUs

ATmega328PB

http://www.atmel.com/devices/ATMEGA328PB.aspx

Did not compare the datasheets :

mega328P  : http://www.atmel.com/images/Atmel-8271-8-bit-AVR-Microcontroller-ATmega48A-48PA-88A-88PA-168A-168PA-328-328P_datasheet_Complete.pdf

mega328PB : http://www.atmel.com/Images/Atmel-42397-8-bit-AVR-Microcontroller-ATmega328PB_Datasheet.pdf

An important difference is the mega328PB has "Hardware QTouch Acquisition" via " QTouch® Peripheral Touch Controller (PTC)".

PTC - UC3L has similar with one autonomous button.

No parts yet in-stock though there's an Xplained Mini for it : http://www.atmel.com/tools/MEGA328PB-XMINI.aspx in-stock at Digi-Key.

Edit : parts availability.

 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Wed. Jul 29, 2015 - 03:22 AM
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More from AVR "What's Changed" are updates :

Atmel AT08401: Getting Started with Atmel ATmega328PB

http://www.atmel.com/Images/Atmel-42482-Getting-Started-with-ATmega328PB_Application%20Note_AT08401.pdf

Atmel AT12615: Getting Started with ATmega168PB

http://www.atmel.com/Images/Atmel-42422-MCU-Getting-Started-with-ATmega168PB-AT12615_Application-Note.pdf

"Dare to be naïve." - Buckminster Fuller

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#PBs are available from RS right now.... :) and nice and cheap :)

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chartman wrote:

#PBs are available from RS right now.... :) and nice and cheap :)

???  They don't even have a listing for '328PB, do they?

 

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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chartman wrote:

#PBs are available from RS right now.... :) and nice and cheap :)

 

Only the 168PBs, the 328 part is still nowhere to be seen.

'This forum helps those who help themselves.'

 

pragmatic  adjective dealing with things sensibly and realistically in a way that is based on practical rather than theoretical consideration.

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only 48/88/168 as far as I can see...

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"Dare to be naïve." - Buckminster Fuller

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Datasheet update :

Microchip Technology Inc

Microchip

Product Change Notification - SYST-06KPYO935

http://www.microchip.com/mymicrochip/NotificationDetails.aspx?pcn=SYST-06KPYO935

25 Aug 2017

...

Data Sheet - ATmega48PB/88PB/168PB - Complete Datasheet

...

(data sheet URL)

...

 

Description of Change:

...

8) Add Errata Rev. O for ATmega168PB.
9) Electrical Characteristics - DC Characteristics: AC Input Offset Voltage improvement

 

...

 

"Dare to be naïve." - Buckminster Fuller

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mega328PB third party boards :

Watterott electronic

Wattuino Pro Mini PB 5V/16MHz (ATmega328PB)

http://www.watterott.com/en/Wattuino-pro-mini-PB-5V-16MHz

Elektor

Elektor Uno R4

https://www.elektor.com/elektor-uno-r4

The successor to the popular Arduino Uno R3 has the new ATmega328PB micro with extra I/O for even more versatility!

...


Please add support for Elektor Uno R4 with ATmega328PB #64

by elektor-labs

https://github.com/platformio/platform-atmelavr/issues/64

 

"Dare to be naïve." - Buckminster Fuller

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Might be good--since mega328pB is in extremely short supply for a long time

When in the dark remember-the future looks brighter than ever.

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From Microchip Direct:  Estimated Ship Date: 11-Dec-2017