{"id":2063,"date":"2009-07-03T07:38:16","date_gmt":"2009-07-03T14:38:16","guid":{"rendered":"http:\/\/mightyohm.com\/blog\/?p=2063"},"modified":"2015-09-26T11:11:05","modified_gmt":"2015-09-26T18:11:05","slug":"atmel-retiring-atmega4888168-microcontrollers","status":"publish","type":"post","link":"https:\/\/mightyohm.com\/blog\/2009\/07\/atmel-retiring-atmega4888168-microcontrollers\/","title":{"rendered":"Atmel retiring ATmega48\/88\/168 microcontrollers"},"content":{"rendered":"

\"Atmel<\/a><\/p>\n

Has anyone else noticed that the ATmega48\/88\/168 family of 8-bit AVR microcontrollers recently joined Atmel’s “mature devices<\/a>” list, shown above?<\/p>\n

Truthfully, I was not surprised to see this, having been tipped off by an Atmel<\/a> sales rep earlier this year at ESC<\/a> in San Jose.<\/p>\n

The good news is that while these much-loved ATmega devices are slowly being obsoleted, they are being replaced by the largely-identical ‘PA’ series<\/a>, which includes the ATmega48PA, ATmega88PA, ATmega168PA<\/a>, and the ATmega328P.\u00a0 The ‘PA’ devices are enhanced versions of the former ‘P’ series, which added energy-saving picoPower<\/a> functionality to the original devices.<\/p>\n

Porting code to the new family should be fairly straightforward given that the PA family is designed to be a drop-in replacement.\u00a0 To help with the switchover, Atmel has released some migration notes<\/a>, including AVR512<\/a>, “Migration from ATmega48\/88\/168 to ATmega48P\/88P\/168P<\/strong>” and AVR528<\/a>, “Migrating from ATmega48\/88\/168 and ATmega48P\/88P\/168P to ATmega48PA\/88PA\/168PA<\/strong>“.\u00a0 Regardless, check your header files and fuse bits for any changes.<\/p>\n

If you are anxious about switching devices, don’t panic<\/strong>, the ATmega48\/88\/168 devices are still in stock at all major distributors<\/a>, while the PA devices aren’t even on the radar yet<\/a>.\u00a0 While professionals might want switch AVRs for new designs, hobbyists will likely still be using the older devices for years to come.\u00a0 (Long live the PIC16F84<\/a>!)<\/p>\n","protected":false},"excerpt":{"rendered":"

Has anyone else noticed that the ATmega48\/88\/168 family of 8-bit AVR microcontrollers recently joined Atmel’s “mature devices” list, shown above? Truthfully, I was not surprised to see this, having been tipped off by an Atmel sales rep earlier this year at ESC in San Jose. The good news is that while these much-loved ATmega devices … Continue reading Atmel retiring ATmega48\/88\/168 microcontrollers<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[10],"tags":[252,61,502,254,253],"class_list":["post-2063","post","type-post","status-publish","format-standard","hentry","category-microcontrollers","tag-atmel","tag-avr","tag-microcontrollers","tag-news","tag-obsolete"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pioCd-xh","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":1419,"url":"https:\/\/mightyohm.com\/blog\/2009\/03\/introducing-the-avr-hv-rescue-shield\/","url_meta":{"origin":2063,"position":0},"title":"Introducing the AVR HV Rescue Shield","author":"Jeff","date":"March 11, 2009","format":false,"excerpt":"This all started last year, when I was playing with an ATmega168 microcontroller and did something silly.\u00a0 I programmed the RSTDISBL fuse bit, which effectively makes it impossible to reflash the chip using an ordinary (serial) programmer. Instead of giving up and throwing out the \"dead\" chip,\u00a0 I decided to\u2026","rel":"","context":"In "Electronics"","block_context":{"text":"Electronics","link":"https:\/\/mightyohm.com\/blog\/category\/electronics\/"},"img":{"alt_text":"AVR HV Rescue Shield with ATmega168 target ","src":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2009\/03\/rescue-shield-with-atmega2_scaled-500x375.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3480,"url":"https:\/\/mightyohm.com\/blog\/2010\/12\/new-product-hv-rescue-shield-2-0\/","url_meta":{"origin":2063,"position":1},"title":"New Product: HV Rescue Shield 2.0","author":"Jeff","date":"December 13, 2010","format":false,"excerpt":"The HV Rescue Shield 2.0 is a high voltage parallel mode fuse programmer for Atmel AVR microcontrollers. It currently supports a wide variety of AVR chips, including the 28-pin ATmega48\/88\/168\/328 series, the 20-pin ATtiny2313, and many 8-pin ATtiny devices (such as the ATtiny25\/45\/85 and ATtiny13A). \u00a0A\u00a0list of supported devices is\u2026","rel":"","context":"In "Microcontrollers"","block_context":{"text":"Microcontrollers","link":"https:\/\/mightyohm.com\/blog\/category\/microcontrollers\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/mightyohm.com\/blog\/wp-content\/uploads\/2011\/12\/hvrescue21.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":968,"url":"https:\/\/mightyohm.com\/blog\/2009\/01\/avr-hv-programmer-shield-in-the-works\/","url_meta":{"origin":2063,"position":2},"title":"AVR HV Programmer Shield in the Works!","author":"Jeff","date":"January 2, 2009","format":false,"excerpt":"What's this??? In response to the continued demand for a PCB version of my Arduino-based AVR High Voltage Programmer, I just released a first cut to BatchPCB and should have a prototype within 3-4 weeks. 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