English
Language : 

MT40A256M16GE-062E Datasheet, PDF (1/365 Pages) Micron Technology – 4Gb: x4, x8, x16 DDR4 SDRAM
DDR4 SDRAM
MT40A1G4
MT40A512M8
MT40A256M16
Features
• VDD = VDDQ = 1.2V ±60mV
• VPP = 2.5V, –125mV/+250mV
• On-die, internal, adjustable VREFDQ generation
• 1.2V pseudo open-drain I/O
• TC maximum up to 95°C
– 64ms, 8192-cycle refresh up to 85°C
– 32ms, 8192-cycle refresh at >85°C to 95°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 and read 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 (x16)
• sPPR and hPPR capability
• JEDEC JESD-79-4 compliant
4Gb: x4, x8, x16 DDR4 SDRAM
Features
Options1
• Configuration
– 1 Gig x 4
– 512 Meg x 8
– 256 Meg x 16
• FBGA package (Pb-free) – x4, x8
– 78-ball (9mm x 11.5mm) – Rev. A
– 78-ball (9mm x 10.5mm) – Rev. B
• FBGA package (Pb-free) – x16
– 96-ball (9mm x 14mm) – Rev. A
– 96-ball (9mm x 14mm) – Rev. B
• Timing – cycle time
– 0.625ns @ CL = 22 (DDR4-3200)
– 0.682ns @ CL = 20 (DDR4-2933)
– 0.682ns @ CL = 21 (DDR4-2933)
– 0.750ns @ CL = 18 (DDR4-2666)
– 0.750ns @ CL = 19 (DDR4-2666)
– 0.833ns @ CL = 16 (DDR4-2400)
– 0.833ns @ CL = 17 (DDR4-2400)
– 0.937ns @ CL = 15 (DDR4-2133)
– 0.937ns @ CL = 16 (DDR4-2133)
– 1.071ns @ CL = 13 (DDR4-1866)
• Operating temperature
– Commercial (0° ≤ TC ≤ 95°C)
– Industrial (–40° ≤ TC ≤ 95°C)
– Revision
Marking
1G4
512M8
256M162
HX
RH
HA
GE
-062E
-068E
-068
-075E
-075
-083E
-083
-093E
-093
-107E
None
IT
:A
:B
Notes:
1. Not all options listed can be combined to
define an offered product. Use the part
catalog search on http://www.micron.com
for available offerings.
2. Not available on Rev. A.
3. Restricted and limited availability.
09005aef84af6dd0
4gb_ddr4_dram.pdf - Rev. G 1/17 EN
1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
‹ 2014 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.