Micron chips MT40A512M16TB-062E:R 1.2V Up to 3200MT/s JEDEC-Compliant Low-Power Modes
Features
VDD = VDDQ = 1.2V ±60mV VPP = 2.5V, −125mV, +250mV On-die, internal, adjustable VREFDQ generation 1.2V pseudo open-drain I/O Refresh time of 8192-cycle at TC temperature range: 64ms at −40°C to 85°C 32ms at >85°C to 95°C 16ms at >95°C to 105°C 16 internal banks (x4, x8): 4 groups of 4 banks each 8 internal banks (x16): 2 groups of 4 banks each 8n-bit prefetch architecture Programmable data strobe preambles Data strobe preamble training Command/Address latency (CAL) Multipurpose register READ and WRITE capability Write leveling Self refresh mode Low-power auto self refresh (LPASR) Temperature controlled refresh (TCR) Fine granularity refresh Self refresh abort Maximum power saving Output driver calibration Nominal, park, and dynamic on-die termination (ODT) Data bus inversion (DBI) for data bus Command/Address (CA) parity Databus write cyclic redundancy check (CRC) Per-DRAM addressability Connectivity test JEDEC JESD-79-4 compliant sPPR and hPPR capability MBIST-PPR support (Die Revision R only)
Options¹ Configuration 2 Gig x4 1 Gig x8 512 Meg x16 78-ball FBGA package (Pb-free) – x4, x8 9mm x 13.2mm – Rev. A 8mm x 12mm – Rev. B, D, G 7.5mm x 11mm – Rev. E, H, J, R 96-ball FBGA package (Pb-free) – x16 9mm x 14mm – Rev. A 8mm x 14mm – Rev. B 7.5mm x 13.5mm – Rev. D, E, H 7.5mm x 13mm – Rev. J, R Timing – cycle time 0.625ns @ CL = 22 (DDR4-3200) 0.682ns @ CL = 21 (DDR4-2933) 0.750ns @ CL = 19 (DDR4-2666) 0.750ns @ CL = 18 (DDR4-2666) 0.833ns @ CL = 17 (DDR4-2400) 0.833ns @ CL = 16 (DDR4-2400) 0.937ns @ CL = 15 (DDR4-2133) 1.071ns @ CL = 13 (DDR4-1866) Operating temperature Commercial (0° ≤ TC ≤ 95°C) Industrial (−40° ≤ TC ≤ 95°C) Automotive (−40° ≤ TC ≤ 105°C) Revision :A, :B, :D, :E, :G, :H, :J, :R
This table presents key timing parameters for DDR4 SDRAM across speed grades, spanning data rates from 1866 to 2666 MT/s. Corresponding target CL-nRCD-nRP values include 13-13-13 (1866 MT/s), 15-15-15/16-16-16 (2133 MT/s), 16-16-16/17-17-17 (2400 MT/s), and 19-19-19 (2666 MT/s), with tAA, tRCD, and tRP timings ranging from 13.32 ns to 15.00 ns, some with alternative tighter values in parentheses.
This table outlines the addressing configurations for three DDR4 SDRAM densities: 2048 Meg x4, 1024 Meg x8, and 512 Meg x16. The 2048 Meg x4 and 1024 Meg x8 variants feature 4 bank groups with BG[1:0] addressing, while the 512 Meg x16 has 2 bank groups with BG0 addressing; all have 4 banks per group addressed via BA[1:0]. Row addressing differs: 128K (A[16:0]) for 2048 Meg x4 and 64K (A[15:0]) for the other two, while column addressing is uniformly 1K (A[9:0]) across all configurations. Page sizes per bank are 512B, 1KB, and 2KB respectively, calculated by the formula Page size = 2^COLBITS × ORG/8, where COLBITS is the number of column address bits and ORG is the DQ bit count.