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www.issi.com • Part Decoder • 2014
DRAM Part Decoder
IS 46 DR 16 320 D-25D B L A2
• Product Family
41 = Asynchronous
42 = SDR Commercial/Industrial grade
43 = DDR/DDR2/DDR3
Commercial/Industrial grade
45 = SDR Automotive grade
46 = DDR/DDR2/DDR3 Automotive grade
• Operating Voltage Range
Asynchronous: Fast Page and EDO
C = 5V
LV = 3.3V
Synchronous
S = 3.3V SDR
SM/RM/VM = 3.3V/2.5V/1.8V mobile SDR
VS = 1.8V SDR
R = 2.5V DDR or 2.5V SDR
LR =1.8V mobile DDR (LPDDR)
DR = DDR2
LD = LPDDR2
TR = DDR3
• Bus Width
8 = x8
16 = x16
32 = x32
• No. of Words
100 = 1M
200 = 2M
400 = 4M
800 = 8M
160 = 16M
320 = 32M
640 = 64M
128 = 128M
256 = 256M
512 = 512M
• Die Rev.
A - Z
• CL (CAS Latency)
B = 3, C = 4, D = 5, E = 6,
F = 7, G = 8, H = 9, J = 10,
K = 11, L = 12, M = 13, N = 14
(Not all speeds and CL’s available
for all products.)
• Speed
-7 = up to 143Mhz
-6 = up to 166Mhz
-75 = up to 133Mhz
-5 = up to 200Mhz
-37 = up to 266Mhz
-3 = up to 333Mhz
-25 = up to 400Mhz
-187 = up to 533Mhz (DDR3 -1066)
-15 = up to 667Mhz (DDR3 -1333)
-125 = up to 800Mhz (DDR3-1600)
-107 = up to 933 Mhz (DDR3-1866)
-093 = up to 1066 Mhz (DDR3-2133)
• Solder Type
(Blank) = Sn/Pb
L = 100% matte Sn for non-BGA
L = SnAgCu for BGA
• Temp. Grade
Blank = Commercial Grade (0C to +70°C)
I = Industrial Grade (-40C to +85°C)
A1 = Automotive Grade (-40C to +85°C)
A2 = Automotive Grade (-40C to +105°C)
A25 = Automotive Grade (-40C to +115°C)
Notes :
1. Ambient temperature limits shown for
most products.
2. For DDR2 and DDR3, refer to the case
temperature specifications.
• Package
B= BGA
CT = Copper TSOP
T = TSOP
BP = PoP BGA
K = S0J
ISSI prefix
Product Family
Operating Voltage Range
Bus Width
No. of Words
Temp. Grade
Solder Type
Package
Speed/CL
Die Rev
