User:Omega/RAM

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RAM Chips

http://www.idhw.com/textual/guide/noin_ram_chip.html

Manufacturer	Logo(s) on chip	Serial starts with
A DATA	 			AD
Alliance Semiconductor		AS
Alps	 			3DA
Apacer				AM
Ascend				AD
ATOP	 			AT
Buffalo		 
Crucial	 			CT
Cypress				CY
Elite MT			M or LP
elixir	 			N2D
Elpida	 			DK
ESMT				M
Etron Technology		EM
eX	 			ITC
Fujitsu				MB
Galvantech			GVT
GeIL	 			GL or 6L
G-Link Technology		GCT
Hitachi				HM5
HMC				HM
Hyundai (Hynix)			HY
IBM	 			IBM
IDT (Integrated Device Tech)	IDT
Infineon			HYB
intel		 		
ISSI		 
J.tec	 			JB
KingMax				KDL
LD	 			PC
LGS (Lucky Goldstar)	 	GM or SDS
M-PLUS	 			ISD
M.tec				TB
Micron Technology		MT
Mira				P2
Mitsubishi			M5M
Mosel Vitelic			V
MoSys				M
Motorola			MCM or SCM
Mr. STONE			ITC
Nanya		 		NT
NCP	 			NP
ND	 			ND
NEC				µPD
Oki				MSM
Panasonic	 		MN
Paradigm	 		PDM
PQI				PQI
PMI	 			HP
Renesas	 			R1
SBT	 			SB
SEC (Samsung Semiconductor)	K4 or KM
Semicon	SEMICON			SD
Siemens				HYB
Silicon Magic			SM
Sony		 
South Land Micro (SMT)	 	-
SpecTek				-
Texas Instruments		TMS
TICE	 			M53
tmTECH	 			T35
Tonicom				TM
Toshiba				TC5
Transcend	 	 
TwinMOS				TM
UMC	 			UM
UNIC	 			UC
V-Data	 			VD
Vanguard			VG
ViGOUR	 			VC
Winbond				W
WMX	 			WX
Xelo	 			IM

Micron

*MT4C4007J-6
 
*MT63V32128Q-5
9842A

*MT 48LC2M8A1
TG -8B S
9810 C USA

*MT 46V8M8
TG -8 B
0036 1-1

*MT MOSEL
MT51SD16100T-7
0120 TR

*4AB11
Z9CJF
7HT7

------------------------

MT / MOSEL, MT - Micron Technology

*4 - RAM type:
28 - Flash (dual supply)
4 - DRAM
41 - SGRAM
46 - SDRAM DDR
48 - SDRAM sync
4A - SDRAM DDR-2
57 - DRAM DDR sync
58 - SRAM sync burst
59 - SRAM sync lastwrite
63 - ?

*V - Voltage:
V - 2.5V
L - 3.3V
[blank] - 5.0V

*C - Manufacturing process:
C - CMOS
B - BiCMOS

*16 - bit organization:
1M16 - 1MBit x 16
2M8 - 2MBit x 8
4M4 - 4MBit x 4
8M8 - 8MBit x 8
16M8 - 16MBit x 8
64K18 - 64kBit x 18
64K36 - 64kBit x 36
32K36 - 32kBit x 36
1004 - 4MBit x 1, FP
4001 - 1MBit x 4, FP
4007 - 1MBit x 4 , EDO, 1K refresh
16270 - 256kBit x 16, EDO
16257 - 256kBit x 16, FP
32128 - 128kBit x 32

*2 - Refresh:
E5 - 1K refresh - EDO
E7 - 2K refresh - EDO
E8 - 2K refresh - EDO
E9 - 4K refresh - EDO
A1 - 4K refresh - Fast Page
A2 - tWR = 2 clk
B1 - 2K refresh - Fast Page
B2 - 3.3 & 5.0 Volt signals
B3 - 3.3 Volt signals only
C3 - 1K refresh - Fast Page

*J - Package option:
J - SOJ
Q - QFP
TG - 54pin TSOP II
FB - 60pin FBGA (8mm x 16mm)
FC - 60pin FBGA (11mm x 13mm)

*6 - min cycle time:
5 - 50ns
6 - 60ns
7 - 70ns
75 - 7.5ns @CL=3 (PC133)
7E - 7.5ns @ CL=2 (PC133)
8E - 10.0ns @CL=2 (PC100)
10 - 10ns

*C - die revision: A/B/C ...

*9812 - date of manufacture:
98 - year of manufacture
12 - week of manufacture

*7HT7 - Serialization code

Hyundai / SK hynix

Merged with Lucky Goldstar Semi [LGS] 1999
Renamed to Hynix Semiconductors - SK hynix
*HY57V161610D
TC-7
9909A KOREA

*hynix 134A
HY5DV641622AT-36
KOREA

*HY57V56420BT
 
*HY534256AJ-70
 
*HY51V42260-60
9705A KOREA

-------------------

*HY	HY - Hyundai / hynix

*57 - RAM type:
51 - DRAM
53 - DRAM (EDO ?)
57 - SDRAM
5D - SDRAM DDR
62 - SRAM slow / superslow
63 - SRAM fast
64 - SRAM pseudo

*V - Voltage:
[blank] - 5.0V
V - 3.3V
Y - 3.0V
U - 2.5V
W - 2.5V (VDDQ=1.8V)
VL - 2.35V
S - 1.8V

*S - Refresh:
S - self refresh
[none] - standard

*16 - Memory density:
3C - 256KBit
31 - 1MBit
34 - 1MBit
4 - 4MBit, 1k refresh
41 - 4MBit
42 - 4MBit
16 - 16M, 4k refresh
17 - 16M, 2k refresh
18 - 16M, 1k refresh
32 - 32M, 4k refresh
64 - 64M, 8k refresh
65 - 64M, 4k refresh
129 - 128M, 4k refresh
28 - 128M, 4k refresh
2A - 128M, 4k refresh TCSR
257 - 256M, 8k refresh
56 - 256M, 8k refresh
12 - 512M, 8k refresh

*16 - bit organization:
40 - x4
41 - x4 (4CAS)
80 - x8
16 - x16
17 - x16 (2CAS)
18 - x16 (2WE)
32 - x32 (2CAS)
33 - x32 (2WE)
34 - x32 (4CAS)

*L - Bank / Interface:
1 - 2 banks
2 - 4 banks
0 - LVTTL
1 - SSTL
2 - SSTL2

5 - RAM type:
0 - FastPage
3 - EDO
4 - EDO
5 - EDO

*C - die revision
Fab. Ichon: [blank] / A / B / C / D ...
Fab. Cheong-ju: H / HA / HB / HC / HD ...

*J - Package option:
J - SOJ
T - TSOP-II
TC - TSOP-II 400mil
TQ - TQFP 100pin 
R - TSOP reverse
S - stack package (Hynix)
K - stack package (M&T)
J - stack package (others)

*7 - min cycle time:
50 - 50ns
60 - 60ns
70 - 70ns
15 - 15ns (66MHz)
12 - 12ns (83MHz)
10 - 10ns (100MHz)
10s - 10ns (100MHz CL3)
10p - 10ns (100MHz CL2&3)
8 - 8ns (125MHz)
75 - 7.5ns (133MHz)
7 - 7ns (143MHz)
6 - 6ns (166MHz)
55 - 5.5ns (183MHz)
5 - 5ns (200MHz)

*A - RAS/CAS:
[none] - PC66 [2-2-2]
A - PC100 [3-2-3]
B - PC100 [2-2-2]
C - PC100 [2-2-2]
D - PC100 [2-2-2]

*9909 - date of manufacture:
99 - year of manufacture
09 - week of manufacture

*134A - Serialization code