DRAM Part Decoder IS 46 DR 16 320 D-25D B L A2 ISSI prefix Product Family Operating Voltage Range Bus Width No. of Words • 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 Temp. Grade Solder Type Package Speed/CL Die Rev • 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 • Speed -7 = -6 = -75 = -5 = -37 = -3 = -25 = -187 = -15 = -125 = -107 = -093 = up to 143Mhz up to 166Mhz up to 133Mhz up to 200Mhz up to 266Mhz up to 333Mhz up to 400Mhz up to 533Mhz (DDR3 -1066) up to 667Mhz (DDR3 -1333) up to 800Mhz (DDR3-1600) up to 933 Mhz (DDR3-1866) up to 1066 Mhz (DDR3-2133) • 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.) www.issi.com • Part Decoder • 2014 • 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