CPU variants: Revision history

11 October 2024

• curprev 16:4116:41, 11 October 2024‎ PizzerLover123 talk contribs‎ 8,069 bytes +309‎ Added some info and added links to the forum posts i used in this (and the previous edit) to the bottom. There are lots more CPU / PPU clones in those threads, but i don't have the time to add them right now.
• curprev 16:0416:04, 11 October 2024‎ PizzerLover123 talk contribs‎ 7,760 bytes +32‎ Added image of 1818P and UM6557 sourced from https://drive.google.com/drive/folders/1splfmyjpisDjYkXpbjlSoudwbgEAuS1P (Orig. Post: https://forums.nesdev.org/viewtopic.php?t=23682). IDK if T1818P = 1818P, i assumed it to be true

19 September 2024

• curprev 09:1609:16, 19 September 2024‎ Lidnariq talk contribs‎ 7,728 bytes +66‎ →‎Unofficial: previous edit made a mess of the multi-part description of the UA6527P; split it into four rows to fix that
• curprev 09:0909:09, 19 September 2024‎ Lidnariq talk contribs‎ 7,662 bytes −42‎ 2A04 shouldn't really be off at the bottom all by itself; while it's technically neither NTSC or PAL nor Clone, it was used in place of NTSC CPUs so put it in that section
• curprev 08:4608:46, 19 September 2024‎ PizzerLover123 talk contribs‎ 7,704 bytes +44‎ Added 8Z01N
• curprev 08:3008:30, 19 September 2024‎ PizzerLover123 talk contribs‎ 7,660 bytes +23‎ Added Picture of UM6561F-2
• curprev 07:0507:05, 19 September 2024‎ PizzerLover123 talk contribs‎ 7,637 bytes −114‎ Removed 2A04 from PAL Section

17 September 2024

• curprev 12:3912:39, 17 September 2024‎ PizzerLover123 talk contribs‎ 7,751 bytes +631‎ No edit summary

11 July 2024

• curprev 09:2509:25, 11 July 2024‎ Forple talk contribs‎ 7,120 bytes −448‎ Correct even more info
• curprev 08:5608:56, 11 July 2024‎ Forple talk contribs‎ 7,568 bytes +53‎ update TA info

8 July 2024

• curprev 19:5519:55, 8 July 2024‎ Lidnariq talk contribs‎ 7,515 bytes +120‎ there was a ua6547??

19 June 2024

• curprev 03:5203:52, 19 June 2024‎ Loglow talk contribs‎ m 7,395 bytes +38‎ Added RP2A03H photo
• curprev 03:4803:48, 19 June 2024‎ Loglow talk contribs‎ m 7,357 bytes +41‎ Updated RP2A03E and RP2A03G photos

14 May 2024

• curprev 18:3818:38, 14 May 2024‎ Ben Boldt talk contribs‎ m 7,316 bytes +19‎ →‎See also: Cross-link CPU Variants and PPU Variants in See Also sections.

7 April 2024

• curprev 14:2814:28, 7 April 2024‎ Lidnariq talk contribs‎ 7,297 bytes −225‎ eugene-s tells me that all four revisions of the 6561xx-2s as well as 6561F-1 have the correct duty cycles, and that revision F is oldest, so it's unlikely that QFP80 6561 duties were ever wrong

22 September 2023

• curprev 06:3306:33, 22 September 2023‎ Fiskbit talk contribs‎ 7,522 bytes +33‎ Adds new ceramic RP2A03 image.

14 May 2023

• curprev 07:3907:39, 14 May 2023‎ Forple talk contribs‎ m 7,489 bytes −1‎ There is no T in "1818N". Believe me, I got literary professionals to check that one out for me to make sure I'm right with this edit.
• curprev 07:1107:11, 14 May 2023‎ Forple talk contribs‎ 7,490 bytes −12‎ NTSC 1818 Exists. It's an 1818N.

6 May 2023

• curprev 08:2108:21, 6 May 2023‎ Forple talk contribs‎ m 7,502 bytes +1‎ wiki formatting is very hard, it seems.
• curprev 08:2008:20, 6 May 2023‎ Forple talk contribs‎ 7,501 bytes +373‎ Got some odd famiclones and some weird chips inside. Documenting it here.

15 April 2023

• curprev 01:1801:18, 15 April 2023‎ Lidnariq talk contribs‎ 7,128 bytes +47‎ 2a03e we know is /rdy now

6 April 2023

• curprev 05:2505:25, 6 April 2023‎ Loglow talk contribs‎ 7,081 bytes +54‎ Added UA6527PQ and photo

22 March 2023

• curprev 05:3105:31, 22 March 2023‎ Forple talk contribs‎ 7,027 bytes −18‎ Update TA-03N Pin 30 Info

10 March 2023

• curprev 06:3806:38, 10 March 2023‎ Loglow talk contribs‎ 7,045 bytes +585‎ Added several unknown brand and SENiTON chips with pictures

8 March 2023

• curprev 07:1607:16, 8 March 2023‎ Forple talk contribs‎ 6,460 bytes +93‎ TA-03N has some oddities with its Illegal Opcodes. More research into it would likely be necessary.

4 March 2023

• curprev 05:1705:17, 4 March 2023‎ Forple talk contribs‎ 6,367 bytes +137‎ Add TA03N Underside image

3 March 2023

• curprev 19:3219:32, 3 March 2023‎ Forple talk contribs‎ 6,230 bytes +9‎ Update TA-03N information; most TA-0x series chips are die mask clones

26 February 2023

• curprev 01:4001:40, 26 February 2023‎ Lidnariq talk contribs‎ 6,221 bytes +75‎ eugene S in the discord described pulse duties for these two

13 February 2023

• curprev 11:4611:46, 13 February 2023‎ Fiskbit talk contribs‎ 6,146 bytes +248‎ Notes that DMC status bit is cleared 1 APU cycle late on UA6527P, TA-03NP1, (T)1818P, UM6561-2. Other clones untested.
• curprev 01:1401:14, 13 February 2023‎ Jeffythedragonslayer talk contribs‎ m 5,898 bytes 0‎ capitalization

11 February 2023

• curprev 05:2505:25, 11 February 2023‎ Fiskbit talk contribs‎ 5,898 bytes +358‎ UM6561xx-2 updates. F is suspected to be the first revision. Eugene reports F has correct duties. Notes my findings regarding AF DMC and illegal instruction behavior.

24 December 2022

• curprev 05:2005:20, 24 December 2022‎ Fiskbit talk contribs‎ m 5,540 bytes 0‎ Fixes formatting.

23 December 2022

• curprev 21:0121:01, 23 December 2022‎ Lidnariq talk contribs‎ 5,540 bytes +165‎ 6540 apparently not so much a PAL clone

28 September 2022

• curprev 18:4118:41, 28 September 2022‎ Lidnariq talk contribs‎ 5,375 bytes +91‎ UA6527P clock divider
• curprev 00:3900:39, 28 September 2022‎ Loglow talk contribs‎ m 5,284 bytes +12‎ adjusted sizes and formatting
• curprev 00:3600:36, 28 September 2022‎ Loglow talk contribs‎ 5,272 bytes +36‎ added additional photo of UA6540
• curprev 00:3100:31, 28 September 2022‎ Loglow talk contribs‎ 5,236 bytes +38‎ added additional photo of RP2A07A
• curprev 00:2900:29, 28 September 2022‎ Loglow talk contribs‎ m 5,198 bytes +6‎ made size of MG-N-501 photo consistent
• curprev 00:2800:28, 28 September 2022‎ Loglow talk contribs‎ 5,192 bytes +37‎ added additional photo of RP2A07

27 September 2022

• curprev 20:4120:41, 27 September 2022‎ Lidnariq talk contribs‎ 5,155 bytes +18‎ more

26 September 2022

• curprev 08:1208:12, 26 September 2022‎ Fiskbit talk contribs‎ 5,137 bytes −9‎ Confirmed that later 2A03G's have an additional DMC bug (introduced sometime 1989-1991). (Thanks to Lockster for running dmc_dma_implicit_stop_test on multiple CPUs in the same system.)

17 September 2022

• curprev 04:5904:59, 17 September 2022‎ Lidnariq talk contribs‎ 5,146 bytes +63‎ more
• curprev 02:0702:07, 17 September 2022‎ Lidnariq talk contribs‎ 5,083 bytes +90‎ more
• curprev 01:3301:33, 17 September 2022‎ Lidnariq talk contribs‎ m 4,993 bytes +79‎ and more
• curprev 01:2301:23, 17 September 2022‎ Lidnariq talk contribs‎ 4,914 bytes +37‎ more

16 September 2022

• curprev 21:4721:47, 16 September 2022‎ Lidnariq talk contribs‎ 4,877 bytes +173‎ add more pictures

15 September 2022

• curprev 03:5803:58, 15 September 2022‎ Lidnariq talk contribs‎ 4,704 bytes +342‎ krzysiobal's CPUs

14 September 2022

• curprev 05:3305:33, 14 September 2022‎ Lidnariq talk contribs‎ 4,362 bytes +87‎ add more package pictures

13 September 2022

• curprev 02:1502:15, 13 September 2022‎ Lidnariq talk contribs‎ 4,275 bytes +235‎ four more package pictures
• curprev 02:1002:10, 13 September 2022‎ Lidnariq talk contribs‎ 4,040 bytes +46‎ mention 2A03 difference even though it's also on CPU power up state