Chipmunk International | Home | Technical Issues
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| Sample | Explanation |
|---|---|
How do I read the type number?
HY57V28820HCT-H
^^----------------- Hy = Hynix
HY57V28820HCT-H
^^--------------- 57 = SDRAM
HY57V28820HCT-H
^-------------- V = 3,3volt
Y = 3,0volt
U = 2,5volt
W = 2,5/1,8volt
S = 1,8volt
HY57V28820HCT-H
^^------------ 16 = 16 Megabit chip / 2K refresh
32 = 32 Megabit chip / 4K refresh
64 = 64 Megabit chip / 4K refresh
28 = 128 Megabit chip / 4K refresh
2A = 128 Megabit chip with TCSR/ 4K refresh
56 = 256 Megabit chip / 8K refresh
12 = 512 Megabit chip / 8K refresh
HY57V28820HCT-H
^----------- Width:
4 = ? x ? x 4 : check module size/banks
8 = ? x ? x 8 : check module size/banks
16 = ? x ? x 16 : check module size/banks
32 = ? x ? x 32 : check module size/banks
HY57V28820HCT-H
^---------- Number of banks:
1 = 2 Banks
2 = 4 Banks
HY57V28820HCT-H
^^^^---------- Internal Organization:
2882 = 4 Banks x 4M x 8 (128Mbit) : check module size/banks
HY57V28820HCT-H
^--------- Interface:
0 = LVTTL
1 = SSTL-3
HY57V28820HCT-H
^---- Speed:
K = PC133, CL2
H = PC133, CL3
P = PC100, CL2
S = PC100, CL3
HY57V28820HCT-H = 128Mb chip PC133