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vendor:yamaha [2017/04/25 13:34] mcmaster |
vendor:yamaha [2019/09/23 23:18] lord_nightmare add note |
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LN has observed (not sure if always true): " | LN has observed (not sure if always true): " | ||
+ | |||
+ | According to Tiido and others, Yamaha is a fabless vendor, and has other chip manufacturers do all of their silicon fabrication and packaging. Examples being Fujitsu, Sharp, Hitachi, ROHM. | ||
+ | |||
+ | ====== Getting Started ====== | ||
+ | [[vendor: | ||
+ | |||
+ | [[vendor: | ||
====== Datecode ====== | ====== Datecode ====== | ||
- | | + | |
- | | + | 1981-1989 'old style': |
- | | + | |
+ | | ||
+ | dd = day within month | ||
+ | L might be a manufacturer code, but could also be the msb of the lot code? | ||
+ | |||
+ | 1990+ 'new style': | ||
+ | | ||
Y = year most significant (9 or 0 or 1 for 199x or 200x or 201x) | Y = year most significant (9 or 0 or 1 for 199x or 200x or 201x) | ||
- | y = year least significant (2 = 1982, 3 = 1983 ... etc ... 9 = 1989) (0 = 1990 for only chips pre-cutoff?) | + | y = year least significant (2 = 1982, 3 = 1983 ... etc ... 9 = 1989) (0 = 1990?) |
- | LLl = lot code/batch code? | + | |
ww = week within year | ww = week within year | ||
- | r = die revision" | + | |
+ | Ll = lot code/batch code? | ||
+ | | ||
+ | |||
+ | |||
+ | ====== Fabs ====== | ||
+ | 'new style': | ||
+ | A = Sharp 2 | ||
+ | C = Hitachi 2a | ||
+ | D = | ||
+ | E = Hitachi 1 | ||
+ | F = Fujitsu | ||
+ | G = Hitachi 1a? | ||
+ | H = Sharp 1 | ||
+ | I (= 5) = Sharp (95% certain) | ||
+ | L (= 4) = Hitachi 2 | ||
+ | O = | ||
+ | Z = Fujitsu 2 | ||
====== Chips ====== | ====== Chips ====== | ||
Line 91: | Line 120: | ||
Sega parts by yamaha: | Sega parts by yamaha: | ||
YM2602B | YM2602B | ||
- | 8045B 315-5308 | + | YM6045B |
- | 8048 | + | YM6048 |
YM7101 | YM7101 | ||
FC1001 | FC1001 | ||
- | 8045C 315-5364 | + | YM6045C |
? | ? | ||
? | ? | ||
Line 107: | Line 136: | ||
FJ3002 | FJ3002 | ||
- | |||
- | |||
- | Index: | ||
Package codes: | Package codes: | ||
D = NDIP/DIP | D = NDIP/DIP | ||
Line 115: | Line 141: | ||
F = QFP (sometimes soic, mismarked?) | F = QFP (sometimes soic, mismarked?) | ||
S = QFP44 | S = QFP44 | ||
- | |||
- | Manufacturers/ | ||
- | oldstyle: | ||
- | 1 = | ||
- | 2 = Sharp? | ||
- | 3 = | ||
- | 4 = L = Hitachi 2 | ||
- | 5 = Sharp (NDIP) | ||
- | 6 = Hitachi | ||
- | 7 = | ||
- | 8 = Hitachi or ROHM (ndip)? | ||
- | X = | ||
- | Y = Hitachi? | ||
- | newstyle: | ||
- | A = Sharp 2 | ||
- | C = Hitachi 2 | ||
- | D = | ||
- | E = Hitachi 1 | ||
- | F = Fujitsu | ||
- | G = Hitachi 1 | ||
- | H = Sharp 1 | ||
- | I = Sharp (verified from multiple chips) | ||
- | L = 4 = Hitachi 2 | ||
- | O = | ||
- | both: | ||
- | Z = Fujitsu | ||
- | |||
- | Yamaha datecode format: | ||
- | "Old style": | ||
- | YM WW LL R | ||
- | |||
- | "New style" | ||
- | YYWW MLLR | ||
- | |||
- | YY = last 2 digits of year | ||
- | Y = last digit of year | ||
- | WW = week | ||
- | M = manufacturer or fab (code differs for old vs new style?) | ||
- | LL = lotcode or production line? (numeric starting at 01 or AA?) | ||
- | R = die revision | ||
- | |||
- | YM2164s: | ||
- | 58 05 83 C = hitachi | ||
</ | </ | ||