ATARI VCS/2600 TIA CHIPS

By Scott Stilphen

(Updated 10-26-2017)

 

In 1975, Ron Milner and Steve Mayer of Cyan Engineering developed the first prototype of what became the Atari VCS.  Joe Decuir was hired later that year to help with debugging the prototype and to help with building the first gate-level prototype.  The following year, Decuir apprenticed for famed IC designer Jay Miner, who was brought on to be the lead chip designer and who created the TIA chip (Atari purchased Cyan Engineering at this point, and renamed it Grass Valley Research Center).  Miner later designed the ANTIC and CTIA/GTIA chips that were the heart of Atari's 400/800 computers and subsequent variations, and the Commodore Amiga computers - the true successor to the 400/800.

This FAQ is primarily about the TIA chip, and all the various manufacturers of it and the variations that were produced.

Atari used least 12 different (NTSC) versions of the TIA: 

Version
1 shows 2 sprites *

Version
2 shows 3 sprites *

Version
3 has an issue with Wall Ball, and may either show 2 or 3 sprites *.

Version 4 has a slight issue with starfield in Cosmic Ark and Journey Escape, and may either show 2 or 3 sprites *.

Version
5a has an issue with Ebivision's Pac-Man and Pesco, and may either show 2 or 3 sprites *.

Version 5b has an issue with Ebivision's Pac-Man and Pesco, and may either show 2 or 3 sprites *. Also has a slight issue with Cosmic Ark's starfield.

Version
6 has the score counter issue with Kool-Aid Man, Thunderground (Anteater is still unreleased, but should exhibit same issue), the issue with Ebivision's Pac-Man and Pesco,
the issue with Cosmic Ark's starfield (PIC), and shows 3 sprites *.

Version 7 has an issue with Kool-Aid Man, Ebivision's Pac-Man, and Pesco, and Pitfall II: Lost Caverns. This exists in NTSC 2600 "JR" systems that feature a 1-chip pcb.  The "JR" system was originally designed to incorporate a new 3-in-1 chip called "JAN" - short for Janice - which combined the CPU, TIA, and RIOT chipset). The chip is dated 1987 Atari but has no manufacturer info, and only has mono sound output! The pcb is marked "Rev 4" and there's no date or "ACTION" name on it:

C101688-002 -- Found in a Rev 4 2600 JR. "2 or 3" shows 3. Pac-Man/Pesco issue with stray dots. Kool-Aid Man score counter is offset to the right side of the screen. Unique issue with Cosmic Ark starfield that changes slightly as the chip warms up (V3 PIC). Also has issue with Stay Frosty (PIC).

Version 8 was used in most PAL JRs and all PAL 7800s that reveals a problem with PAL Centipede and the 1987 re-release of Millipede.  Using the Activision work-around method of avoiding the HMOVE lines doesn’t work on some PAL 2600 JR (all-black) models.  Also, like the 3-in-1 2600 JR chip, the TIA chip in PAL versions of the VCS only have mono sound output.  According to Joe Decuir, the PAL version of TIA was called PAULA.

Version 9 has an issue with Frogger II: Threeedeep! and is found in certain 7800 systems.

Version 10 is found in 2600 "JR" consoles (both NTSC and PAL) that are made in China after late 1989. The signal timing in the TIA for the shifting pulses for the movable objects seems to be a little off from older versions of the TIA. Therefore when a game starts the shifting process in such a way that some of the shifting pulses happen during the visible part of the screen, the movable objects might be positioned slightly differently. This affects all PAL 7800 consoles, too.

Version 11 was found in Atari's Tournament Table arcade machine, which uses a variant of the VCS hardware.  The pcb includes a CPU (#1), a TIA (#2), and 2 RIOT chips (#3):

MAC010444-11 RY1 7802 -- Found in an Atari Tournament Table arcade pcb Rev B (1978).  "2 or 3" shows 3.  Has issues with Centipede (PIC), Cosmic Ark starfield (V1 PIC), He-Man (V2 PICS), and Ebivision's Pac-Man and Pesco.

C010444-03 7749S -- Found in an Atari Tournament Table arcade pcb Rev B (1978).   "2 or 3" shows 2.

There's also all the 3rd-party systems and adapters, which often used bootleg TIAs (a few are listed here).

Once the list is more complete, the information could be incorporated into an emulator like Stella, as well as help homebrew programmers to make sure any tricks they use would be compatible across every variation. If you have any information to add, please email me.

 

These are the games known to have issues with certain TIA chips:

*2 or 3 - a test program written by Eckhard Stolberg that was posted on Stellalist. The program shows either 2 or 3 columns of sprites, depending on what TIA is used. This denotes a slight difference between the 2 most-common TIA versions, although neither is a clear indication of any known incompatibility issues with any games.  The differences could also be attributed to temperature issues with the TIA chip itself, as shown in this video.
Anteater -
still unreleased, but should exhibit same issues as Kool-Aid Man and Thunderground.
BMX Airmaster - incompatible with some original “heavy” 6-switch VCS models (yet to verify). The right edge of the half-pipe may not be highlighted.
Boulder Dash - since the game uses the same code from Cosmic Ark to generate the starfield on the title screen, all the same issues apply with this game (PIC).
Centipede - issue with the title screen (PIC).  This only happens with the NTSC version.  Note: the starfield is the result of a bug in the TIA chip (
INFO)
Cosmic Ark
- the starfield may either have more stars (V1 PIC), a single vertical column of stars (V2 PIC), or elongated stars (V3 PIC).
Frogger II: Threeedeep! - (yet to verify).
G.I. Joe: Cobra Strike - issue with the Cobra's head that may look similar to this (PIC).
Halo 2600 - issue with the 1-chip NTSC 2600 "JR" variant that may cause the starfield on the title screen to disappear.
Harmony - issue with Escape from the Mindmaster and certain TIAs (INFO).
Journey Escape - issues with starfield (same as Cosmic Ark).
Kool-Aid Man - issue with score counter (INFO).
Masters of the Universe: The Power of He-Man - issues with title screen graphics (V1 PICS) (V2 PICS).
Pac-Man (Ebivision) - issue with stray dots (INFO).
Pesco
- issue with stray dots (INFO).
Pitfall II: Lost Caverns - issue with the 1-chip NTSC 2600 "JR" variant. The game doesn't do an HMOVE in every line, so not all lines start with an eight pixel blank. The program tries to hide it with displaying a black eight pixel wide copy of missile 1 in those lines where it doesn't do an HMOVE, but with this system, these missiles are shifted one pixel to the right (VIDEO). If you run Pitfall II in Stella and disable missile 1 with ALT-V, you can see what this looks like.  A small glitch where stray pixels or a line appears next to Pitfall Harry's head with some 7800 models (PICS).
Stay Frosty - issues with the starfield (same as Cosmic Ark V1) (INFO).
Thunderground - issue with score counter (INFO).
Wall Ball - incompatible with certain TIAs (INFO).


Below is the current master list of TIA chips:

American MicroSystems (AMI)

C010444-01 7749FF -- Found in a Rev 8 (1977). "2 or 3" shows 2.

C010444-01 7750XG -- Found in a Rev 8 (1977).

C010444-01 7801BA -- Found in a 4-switcher.

C010444-01 7812MS -- "2 or 3" shows 2. Pac-Man/Pesco issue with stray dots.

C010444-01 7814QA -- Found in a Rev B (1977). "2 or 3" shows 2. Pac-Man/Pesco issue with stray dots. 

C010444D-01 8010TL -- Found in a Rev B (1977). "2 or 3" shows 3. Pac-Man/Pesco issue with stray dots. Slight issue with Cosmic Ark starfield (V1 PIC).

C010444D-01 8027PX -- Found in a Rev B (1977). "2 or 3" shows 2.

C010444D-01 8028MS -- "2 or 3" shows 2.

C010444D-01 8029CU -- Found in a Rev B (1977). 

C010444D-01 8031CS -- Found in a Rev B (1977). "2 or 3" shows 3.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444D-01 8031QU -- Found in a Rev B (1977). "2 or 3" shows 2.  Wall Ball exhibits issues.

C010444D-01 8033BB -- Found in a Rev B (1977).

C010444D-01 8035IR -- Found in a Rev C (1977). "2 or 3" shows 2.

C010444D-01 8036DAG -- Found in a Rev B (1977).

C010444D-01 8051ALR -- Found in a Rev C (1977). "2 or 3" shows 2.

C010444D-01 8105DAC -- Found in a Rev C (1977). "2 or 3" shows 2.

C010444D-01 8108DAL -- Found in a Rev 9 (1980). "2 or 3" shows 3. Pac-Man/Pesco issue with stray dots. Slight issue with Cosmic Ark starfield (V2 PIC).

C010444D-01 8108DAO -- Found in a Rev 9 (1980). "2 or 3" shows 3. Wall Ball exhibits issues.

C010444D-01 8111IAJ -- Found in a Rev C (1977) and a Rev 8 (1977).  "2 or 3" shows 2.

C010444D-01 8115KZ -- Found in a Rev 9 (1980). "2 or 3" shows 2.

C010444D-01 8116XP -- "2 or 3" shows 2.

C010444D-01 8117BBQ -- Found in a Rev 12 (1980). "2 or 3" shows 2.

C010444D-01 8117MAE -- Found in a Rev 12 (1980). "2 or 3" shows

C010444D-01 8119BAB -- Found in a Rev B (1977). "2 or 3" shows 2.

C010444D-01 8119BCR -- "2 or 3" shows 3.

C010444D-01 8132MBT -- Found in a Rev 13 (1980). "2 or 3" shows 3.

C010444D-01 8132MBX --  Found in a Rev 13 (1980).  "2 or 3" shows 2.

C010444D-01 8135BIK -- Found in a Rev B (1977). "2 or 3" shows 2.

C010444D-01 8135MCZ -- Found in a Rev 13 (1980). "2 or 3" shows 2.

C010444D-01 8135MDD -- Found in a Rev 12 4-switch.

C010444D-01 8136MDO -- Found in a Rev 14 (1980) 4-switch.  "2 or 3" shows 3.

C010444D-01 8137DAI -- Found in a Rev B (1977). "2 or 3" shows 2.

C010444D-01 8137MEJ -- Found in a Rev 13 (1980).

C010444D-01 8138MEW-- Found in a Rev 14 (1980).  "2 or 3" shows 2.

C010444D-01 8140MEY-- Found in a Rev B (1977). 

C010444D-01 8140MFG-- Found in a Rev C (1977). "2 or 3" shows 2.  This chip exhibited a heat-related problem that affected the title screen graphics on He-Man (V1 PICS).

C010444D-01 8144MFX -- "2 or 3" shows 2.  Pac-Man/Pesco issue with stray dots.

C010444D-01 8150MAJ -- Found in a batch of items that the Irish service center Peats/Emcee tossed in 2009, so this version is likely PAL.

C010444D-01 8202MAP -- Found in a Rev 14 (1980). "2 or 3" shows 3.

C010444D-01 8206MBM -- Found in a Rev 13 (1980).

C010444D-01 8209MCD -- Found in a Rev 14 (1980). "2 or 3" shows 2.

C010444D-01 8211MCP -- Only works in a Rev 12 4-switch if pin 36 is lifted, and even then there's issues. "2 or 3" shows 2.

C011903 8214MBM -- Found in a PAL 2600AP Rev 6.

C011903 8215MBN -- Found in a PAL Rev 6.

C010444D-01 8216LO -- Found in a Rev 16 (1980). "2 or 3" shows 3.

C010444D-01 8222MEN -- Found in a Rev 16 (1980). "2 or 3" shows 3.

C010444D-01 8224BQJ -- Found in a Rev 14 (1980).  "2 or 3" shows 3.

C010444D-01 8224RP -- Found in a Rev 14 (1980).  "2 or 3" shows 2.

C010444D-01 8225EOW -- Found in a Rev 16 (1980). "2 or 3" shows 3.

C010444D-01 8227JG -- Found in a Rev 14 (1980).  "2 or 3" shows 3.

C010444D-01 8231BMH -- "Found in a Rev 16 (1980). "2 or 3" shows 3. Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C010444D-01 8424LI -- Found in a non-socketed Rev 16. "2 or 3" shows 3.

C010444D-01 8712MIT -- Found in a Rev A (1984) 7800 "Action" 0287 pcb. "2 or 3" shows 2.  Pac-Man/Pesco issue with stray dots.

C010444D-01 8715MJF -- Found in a Rev A (1984) 7800 "Action" 3187 pcb. "2 or 3" shows 3.  Slight issue with Pitfall II (PICS). Both BurgerTime and He-Man do not work using a Harmony cartridge.

C010444D-01 8725MJQ

C010444-002 8811TAH -- Found in a 2600 JR, Rev F. "2 or 3" shows 2.

 

IMP

C010444-31 8835WEA -- Found in 2600 JR.

 

Intersil

C010444-23 8131 -- Found in Rev C (1977).  "2 or 3" shows 3.

 

"MA" (?)

C010444-11D 7812 -- Found in a heavy sixer Rev B.  "2 or 3" shows 3.  Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C011903-11 7934 -- Found in a PAL 6-switch Rev A.

Click HERE to view

CO11903-11 8008 -- Found in a PAL system.

C010444-11D 8013 -- Found in a Rev B (1977).  "2 or 3" shows 3.

C010444-11D 8015 -- Found in a Rev B (1977). "2 or 3" shows 2.  Issue with Cosmic Ark's starfield (V1 PIC).

C010444-11D 8020 -- "2 or 3" shows 3. Wall Ball exhibits issues.

Click HERE to view

CO11903-11 8045 -- Found in a 6-switch.

 

Motorola

C010444D-05 8144 -- Found in a 4-switch. "2 or 3" shows 2 until the chip warmed up and showed 3.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444D-05 8147 -- Found in a Rev 12 4-switch with pin 36 lifted up. Not sure what the reason was, as it worked fine with the pin in the socket. "2 or 3" shows 2.

 

National Semiconductor

C010444D-19 B201 -- Found in a 6-switcher. 

C010444D-19 B204 -- Found in a Rev C (1977). 

C010444D-19 B208 -- Found in a Rev C (1977).  "2 or 3" shows 3.

C010444D-19 B219 -- Found in a Rev 13 (1980).  "2 or 3" shows 2.

 

OKI Semiconductor (OKI)

C010444-22 M3980 1Y42 -- Found in a Rev 14 (1980). "2 or 3" shows .

C010444-22 M3980 3563 -- Found in a non-socketed Rev 16 "Vader". "2 or 3" shows 2.

C010444-22 M3980 4560 -- Found in a non-socketed Rev 17 "Vader".

C010444-22 M3980 4561 -- Found in a non-socketed Rev 17 "Vader". "2 or 3" shows 2.

C010444-22 M3980 6904 -- Found in a Rev A (1984) 7800.  "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444-22 MSM3980 0Z71-- Found in a Rev 12 (1980).  "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444-22 MSM3980 1151 -- Found in a Rev C (1977).  "2 or 3" shows 3.  Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C010444-22 MSM3980 1374 -- Found in a Rev B (1977).  "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444-22 MSM3980 1953 -- Found in a Rev 13 (1980).  "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444-22 MSM3980 1955 -- Found in a Rev 14 (1980).

C010444-22 MSM3980 1957 -- Found in a Rev 14 (1980).

C010444-22 MSM3980 1Y58 -- Found in a Rev 13 (1980). "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444-22 MSM3980 1Y64 -- Found in a Rev 13 (1980). "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

C010444-22 MSM3980 1Z55 -- Found in a Rev 14 (1980). "2 or 3" shows 2.

C010444-22 MSM3980 1Z56 -- Found in a Rev 14 (1980).

C010444-22 MSM3980 2247 -- Found in a Rev 16 (1980).  "2 or 3" shows 2.

C010444-22 MSM3980 2259 -- Found in a Rev 16 (1980).

C010444-22 MSM3980 2263 -- Found in a Rev 14 (1980). "2 or 3" shows 3. Has issue with Stay Frosty (PIC).

C010444-22 MSM3980 2445 -- Found in a Rev 14 (1980).  "2 or 3" shows 2.

C010444-22 MSM3980 2461 -- Found in a Rev 14 (1980).  "2 or 3" shows 3.  Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C010444-22 MSM3980 2469 -- Found in a Rev 16 "Vader".

C010444-22 MSM3980 2473 -- Found in a Rev 16 (1980). "2 or 3" shows 3.  Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C010444-22 MSM3980 2551 -- Found in a non-socketed Rev 16 "Vader". "2 or 3" shows 2.

 

Synertek

C010444-03 7732D -- "2 or 3" shows 2.

C010444-03 7742D -- "2 or 3" shows 3.

C010444-03 7749S -- Found in a Rev B (1977) "heavy".   "2 or 3" shows 2.

C010444-03 7801S -- Found in a 6-switcher.

C010444-03 7808S

C010444-03 7810D -- Found in a Rev B (1977).

C0104440-03 7814S -- Found in a Rev B (1977).  "2 or 3" shows 2. Wall Ball exhibits issues.

C010444-03 7817D

C010444-03 7820D -- Found in a Rev B (1977).  "2 or 3" shows 2.

C010444-03 7823S -- Found in a Rev B (1977).  "2 or 3" shows 2.

C010444-03 7829S -- Found in a Rev 8 (1980).  "2 or 3" shows 2.

C010444-03 7836E -- Found in a Rev B (1977).  "2 or 3" shows 2.

C010444D-03 8007D -- Found in a Rev A (1984) 7800.

C010444D-03 8015D -- Found in a Rev B (1977). "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V2 PIC).

C010444D-03 8019E -- Found in a Rev B (1977) and a Rev 12 (1980). "2 or 3" shows 2.

C010444D-03 8031E -- Found in a Rev B (1977) and Rev 5 (1980). "2 or 3" shows 2.  Has a heat-related issue with Stay Frosty.

C010444D-03 8034E -- Found in a Rev B (1977). 

C010444D-03 8036E -- Found in a Rev 5 (1980). "2 or 3" shows 2.

C010444D-03 8108 -- Found in a Rev B (1977).  "2 or 3" shows 2.

C010444D-03 8113D -- Found in a Rev 12 (1980).  "2 or 3" shows 2.

C010444D-03 8114D -- Found in a Rev B (1977).  "2 or 3" shows both (thermal timing bug).

C010444D-03 8115D -- Found in a Rev 12 (1980).  "2 or 3" shows 2.

C010444D-03 8130 -- Found in both a Rev B (1977) and a Rev 13 (1980). "2 or 3" shows 2.  Pac-Man/Pesco issue with stray dots.

C010444D-03 8139 -- Found in a Rev 12 (1980). "2 or 3" shows 2. Slight issue with Cosmic Ark starfield (V2 PIC). Also has issue with Stay Frosty (PIC).

C010444D-03 8143 -- Found in a Rev 13 (1980).

C010444D-03 8144 -- Found in a Rev B (1977).

C010444D-03 8145 -- Found in a Rev 14 (1980). "2 or 3" shows 2.  Pac-Man/Pesco issue with stray dots.

C010444D-03 8146 -- Found in a 6-switch Rev C (1977), Rev 12 (1980), and Rev 13 (1980).  "2 of 3" shows 2.

C010444D-03 8147 -- Found in a Rev C (1977).

C010444D-03 8208 -- Found in a Rev 14 (1980). "2 or 3" shows 3.  Pac-Man/Pesco issue with stray dots.

C010444D-03 8212 -- Found in a Rev 14 (1980). "2 or 3" shows 2.

C010444D-03 8216 -- Found in a Rev 14 (1980) and a Rev 16 (1980). "2 or 3" shows 2.

C010444D-03 8222 -- Found in a Rev 16 (1980). "2 or 3" shows 2.

C010444D-03 8223 -- Found in a Rev 16 (1980). "2 or 3" shows 2.

C010444D-03 8225 -- Found in a Rev 16 (1980). "2 or 3" shows 2.

C010444D-03 8229 -- Found in a Rev 14 (1980).  "2 or 3" shows 3.

C010444D-03 8310 -- Found in a non-socketed Rev 16.  "2 or 3" shows 2.

C010444D-03 8319 -- Found in a non-socketed Rev 14 (1980).

C010444D-03 8325 -- Found in a non-socketed Rev 16.

C010444D 8404 -- Found in a non-socketed Rev 16. "2 or 3" shows 3.  Also Found in a 7800 with different results - "2 or 3" shows 3. Pac-Man/Pesco issue with stray dots.

C011903-03 8138 -- Found in a "Vader" 2600AP (PAL) Rev 6.

C011903-03 8222 -- Found in a "Vader" 2600AP (PAL) Rev 6.

 

TSU

C010444-11D 8141 -- "Found in a Rev B (1977). "2 or 3" shows 3. Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C010444-11D 8142 -- "2 or 3" shows 2.

C010444-11D 8145 -- Found in a Rev 13 (1980). "2 or 3" shows 2. 

C010444-11D 8203 -- Found in a Rev 14 (1980). "2 or 3" shows 3. Has issue with Ebivision's Pac-Man and Pesco, and an issue with Cosmic Ark's starfield (V1 PIC).

C010444-11D 8318 -- Found in a Rev 16.

C010444-11D 8348 -- Found in a Rev 16.

C010444-11D 8410 -- Found in a Rev 16 (1980). "2 or 3" shows 2.

C010444-11D 8413 -- Found in a 7800, Rev A 1984. "2 or 3" shows 2.

C011903-11 8151 -- Found in a 4-switch 2600AP (PAL) Rev 5.

C011903-11 8344 -- Found in a PAL 2600 JR, Rev. B.

 

United Microelectronics Corp (UMC)

Click HERE to view

UM6532 8611C -- Found in a 2600 JR, Rev C.  This chip exhibited a heat-related problem that affected the score counter and timer in Kool-Aid Man.  As the chip got warmer, the digits slowly moved to the right (GIF).

UM6526N 8637C -- Found in a 2600 JR, Rev D ("ACTION" not printed on pcb). "2 or 3" shows 2.

UM6526N 8639C -- Found in a 2600 JR, Rev C.  "2 or 3" shows 2.  Slight issue with Cosmic Ark starfield (V1 PIC).

UM6526N 8717S -- Found in a 2600 JR, Rev C. "2 or 3" shows 2.

UM6526N 8639C -- Found in a PAL 2600 JR, Rev F.

UM6526P1 8846S -- Found in a PAL 2600 JR, Rev F.

UM6526P1 9212T -- Found in a PAL 2600 JR, Rev F.1.1.

Click HERE to view

UM6532 8650C -- Found in a 2600 JR.

 

(UN)

C010444-20 8203-003 -- Found in a Rev 14 (1980). "2 or 3" shows 3.

 

("unknown")

C011903-11 7834 -- Found in a 6-switch (PAL) Rev 1.

CO10444-8637 -- Found in a JR, Rev C. "2 or 3" shows 2.

C010444-20 8001 8123-618 -- Found in a Rev 13 (1980). "2 or 3" shows 3. Pac-Man/Pesco issue with stray dots.  

C010444-20 8001 8126-641

C010444-20 8001 8210-010 -- Found in a Rev 14 (1980). "2 or 3" shows 3.

 

(VTI)

VF4013 4583 -- Found in a Coleco Gemini, Rev C. "2 or 3" shows 2.

E4002 8251 -- Found in a Colecovision Expansion Module #1, Rev G (1982).

E4002 8253 -- Found in a Colecovision Expansion Module #1.

E4002 8304 -- Found in a Coleco Gemini, Rev F. "2 or 3" shows 3. Issue with title screen graphics on He-Man (V1 PICS).

E4002 8403 -- Found in a Coleco Gemini, Rev F. "2 or 3" shows 3. Pac-Man/Pesco issue with stray dots.

 

The site Visual6502 exposes a TIA 10444D chip (manufacturer and chip variation unknown) as well as a 6507:

http://www.visual6502.org/images/pages/Atari_10444D_TIA.html
http://visual6502.org/docs/6502_in_action_14_web.pdf

These sites lists the logos of the more well-known chip manufacturers:

http://www.westfloridacomponents.com/manufacturer-logos.html

http://www.elnec.com/support/ic-logos/?method=logo

http://www.siliconinvestigations.com/logos/logos.htm

http://www.classiccmp.org/rtellason/logos/semiconductorlogos.html


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