Vanguard Int. RAM chip marking & reference


On chip top AP46041 AC
VG264400BJ
642 -6
VG46VS8325AQ
838 WB0EF1 -10
  VG26VS17405DJ-5
 

Vanguard RAM chip marking
VANGUARD www.vis.com.tw
VG VG - Vanguard Int.
46 - RAM type 16 - ???
26 - DRAM
36 - SDRAM
37 - SDRAM DDR
46 - SGRAM
86 - SDRAM synchronous
V - voltage [none] - 5.0V
V - 3.3V low voltage
S - refresh mode [none] - no self refresh
S - self refresh
440 - memory density 426 - 256kb x 16bit
440 - 256kb x 4 x 4 (? not sure ?)
832 - 256kb x 32bit
1632 - 512kb x 32 x 2
1640 - 512kb x 4 x 4
1716 - 512kb x16 x 2
1740 - 4Mb x 4
1780 - 1Mb x 8 x 2
1816 - 1Mb x 16bit
64404 - 4Mb x 4 x 4 (64Mb)
64804 - 2Mb x 8 x 4 (64Mb)
64164 - 1Mb x 16 x 4 (64Mb)
12840 - 8Mb x 4 x 4 (128Mb)
12880 - 4Mb x 8 x 4 (128Mb)
6412816 - 2Mb x 16 x 4 (128Mb)
2 - RAM type 0 - Fast page 2k refresh
1 - ???
2 - ???
3 - EDO
5 - EDO 1k refresh
C - die revision A/B/C ...
J - package option J - SOJ
T- TSOP (II)
Q - QFP
5 - min cycle time 5 - 5.0ns
6 - 6.0ns
10 - 10ns
35 - 35ns
50 - 50ns
642 - date of manufacture 6 - year of manufacture
42 - week of manufacture
WB0EF1 - Serialization code ?
DRAM 16MB
VG26(S)17400DJ 4Mx4 5V 50/60 F.P. (2K) 24/26-300mil SOJ
VG26(S)17405DJ 4Mx4 5V 50/60 EDO (2K) 24/26-300mil SOJ
VG26(V)(S)17405FJ/T 4Mx4 5V/3.3V 50/60 EDO (2K) S.R.* 24/26-300 mil SOJ/TSOP
VG26(V)(S)18160CJ/T 1Mx16 5V/3.3V 50/60 FP (1K) S.R.* 42-400 mil SOJ 44/50-400 mil TSOP
VG26(V)(S)18165CJ/T 1Mx16 5V/3.3V 50/60 EDO (1K)S.R.* 42-400 mil SOJ 44/50-400 mil TSOP

SGRAM 8MB
VG4616321B 512Kx32 2B -6/-7/-8 Syn. (2K) 100pin QFP
VG468321CQ 256Kx32 2B -6/-7/-8 Syn. (1K) 100pin QFP

SDRAM 16MB
VG3617161DT 1Mx16 2B -5.5/-6/-7/-8 Syn. (4K) 50-400 mil TSOPII
VG3617161ET 1Mx16 2B -6/-7/-8 Syn. (4K) 50-400 mil TSOPII

SDRAM 64MB
VG36648041DT 8Mx8 4B -6/-7/-7L/-8H Syn. (4K) 54-400 mil TSOPII
VG36641641DT 4Mx16 4B -5L/-6/-7/-7L /-8H Syn. (4K) 54-400 mil TSOPII

SDRAM 128MB
VG36128801BT 16Mx8 4B -6/-7H/-7L/-8H Syn. (4K) 54-400 mil TSOPII
VG36128161BT 8Mx16 4B -6/-7H/-7L/-8H Syn. (4K) 54-400 mil TSOPII

128Mb DDR SDRAM
VG37128802AT 16Mx8 4B -5/-6 Syn. (4K) 66 PIN 400mil TSOPII
VG37128162AT 8Mx16 4B -5/-6 Syn. (4K) 66 PIN 400mil TSOPII

256Mb DDR SDRAM
VG37256402AT 64Mx4 4B -66/-7L/-75/-8 Syn. (8K) 66 PIN 400mil TSOPII
VG37256802AT 32Mx8 4B -66/-7L/-75/-8 Syn. (8K) 66 PIN 400mil TSOPII

SDRAM synchronous 168pin DIMM 3.3V
VS864648041DTGA 8Mx64 -7/-7L/-8H 4K 8Mx8 400mil TSOPII
VS1664648041DTGA 16Mx64 -7/-7L/-8H 4K 8Mx8 400mil TSOPII