1Gb: x4, x8, x16 DDR3 SDRAM Features DDR3 SDRAM MT41J256M4 32 Meg x 4 x 8 banks MT41J128M8 16 Meg x 8 x 8 banks MT41J64M16 8 Meg x 16 x 8 banks 1 Options Marking Features Configuration V = V = 1.5V 0.075V DD DDQ 256 Meg x 4 256M4 1.5V center-terminated push/pull I/O 128 Meg x 8 128M8 Differential bidirectional data strobe 64 Meg x 16 64M16 8n-bit prefetch architecture FBGA package (Pb-free) x4, x8 Differential clock inputs (CK, CK ) 78-ball (8mm x 11.5mm) Rev. G JP 8 internal banks FBGA package (Pb-free) x16 Nominal and dynamic on-die termination (ODT) 96-ball (8mm x 14mm) Rev. G JT for data, strobe, and mask signals Timing cycle time Programmable CAS READ latency (CL) 1.07ns CL = 13 (DDR3-1866) -107 POSTED CAS ADDITIVE latency (AL) 1.07ns CL = 12 (DDR3-1866) -107E Programmable CAS WRITE latency (CWL) based on 1.25ns CL = 11 (DDR3-1600) -125 t CK 1.5ns CL = 9 (DDR3-1333) -15E Fixed burst length (BL) of 8 and burst chop (BC) of 4 1.87ns CL = 7 (DDR3-1066) -187E (via the mode register set MRS ) Operating temperature Selectable BC4 or BL8 on-the-fly (OTF) Commercial (0C T +95C) None C Self refresh mode Industrial (40C T +95C) IT C T of 0C to 95C C Automotive (40C T +105C) AT C 64ms, 8192 cycle refresh at 0C to 85C Revision G 32ms, 8192 cycle refresh at 85C to 95C 1. Not all options listed can be combined to Note: Self refresh temperature (SRT) define an offered product. Use the part Automatic self refresh (ASR) catalog search on 1Gb: x4, x8, x16 DDR3 SDRAM Features Table 2: Addressing Parameter 256 Meg x 4 128 Meg x 8 64 Meg x 16 Configuration 32 Meg x 4 x 8 banks 16 Meg x 8 x 8 banks 8 Meg x 16 x 8 banks Refresh count 8K 8K 8K Row addressing 16K (A 13:0 ) 16K (A 13:0 ) 8K (A 12:0 ) Bank addressing 8 (BA 2:0 ) 8 (BA 2:0 ) 8 (BA 2:0 ) Column addressing 2K (A 11, 9:0 ) 1K (A 9:0 ) 1K (A 9:0 ) Page Size 1KB 1KB 2KB Figure 1: DDR3 Part Numbers Example Part Number: MT41J256M4JP-125:G - : MT41J Configuration Package Speed Revision :G Revision Configuration Temperature 256 Meg x 4 256M4 Commercial None 128 Meg x 8 128M8 Industrial temperature IT 64 Meg x 16 64M16 Automotive temperature AT Package Rev. Mark Speed Grade t 78-ball 8mm x 11.5mm FBGA G JP -107 CK = 1.07ns, CL = 13 t 96-ball 8mm x 14mm FBGA G JT -107E CK = 1.07ns, CL = 12 t -125 CK = 1.25ns, CL = 11 t -125E CK = 1.25ns, CL = 10 t -15E CK = 1.5ns, CL = 9 t -187E CK = 1.87ns, CL = 7 Note: 1. Not all options listed can be combined to define an offered product. Use the part catalog search on