DDR4 SDRAM. MT40A256M16 Datasheet

MT40A256M16 SDRAM. Datasheet pdf. Equivalent


Micron MT40A256M16
4Gb: x8, x16 Automotive DDR4 SDRAM
Features
Automotive DDR4 SDRAM
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
• Refresh maximum interval time at TC temperature
range:
– 64ms at –40°C to 85°C
– 32ms at 85°C to 95°C
– 16ms at 96°C to 105°C
– 8ms at 106°C to 125°C
• 16 internal banks ( 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
• Hard post package repair (hPPR) and soft post
package repair (sPPR) modes
• JEDEC JESD-79-4 compliant
• AEC-Q100
• PPAP submission
Options1
• Configuration
– 512 Meg x 8
– 256 Meg x 16
• BGA package (Pb-free) – x8
– 78-ball (9mm x 10.5mm) – Rev. B
– 78-ball (7.5mm x 11mm) – Rev. F
• FBGA package (Pb-free) – x16
– 96-ball (9mm x 14mm) – Rev. B
– 96-ball (7.5mm x 13.5mm) – Rev. F
• Timing – cycle time
– 0.625ns @ CL = 22 (DDR4-3200)
– 0.750ns @ CL = 18 (DDR4-2666)
– 0.833ns @ CL = 16 (DDR4-2400)
• Product certification
– Automotive
• Operating temperature
– Industrial (–40°C TC +95°C)
– Automotive (–40°C TC +105°C)
– Ultra-high (–40°C TC +125°C)3
– Revision
Marking
512M8
256M16
RH
SA
GE
LY
-062E
-075E
-083E
A
IT
AT
UT
:B :F
Notes:
1. Not all options listed can be combined to
define an offered product. Use the part cat-
alog search on http://www.micron.com for
available offerings.
2. The ×4 device is not offered and the mode
is not supported by the x8 or x16 device
even though some ×4 mode descriptions ex-
ist in the datasheet.
3. The UT option use based on automotive us-
age model. Please contact Micron sales rep-
resentative if you have questions.
4. -062E is only available for die Rev. F.
CCMTD-1725822587-10418
4gb_auto_ddr4_sdram_z90b_z10B.pdf - Rev. I 05/19 EN
1 Micron Technology, Inc. reserves the right to change products or specifications without notice.
‹ 2016 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.


MT40A256M16 Datasheet
Recommendation MT40A256M16 Datasheet
Part MT40A256M16
Description Automotive DDR4 SDRAM
Feature MT40A256M16; 4Gb: x8, x16 Automotive DDR4 SDRAM Features Automotive DDR4 SDRAM MT40A512M8 MT40A256M16 Features .
Manufacture Micron
Datasheet
Download MT40A256M16 Datasheet




Micron MT40A256M16
4Gb: x8, x16 Automotive DDR4 SDRAM
Features
Table 1: Key Timing Parameters
Speed Grade
-062E1
-075E1
-083E
Data Rate (MT/s)
3200
2666
2400
Target CL-nRCD-nRP
22-22-22
18-18-18
16-16-16
Note: 1. Refer to the Speed Bin Tables for backward compatibility
tAA (ns)
13.75
13.5
13.32
tRCD (ns)
13.75
13.5
13.32
tRP (ns)
13.75
13.5
13.32
Table 2: Addressing
Parameter
Number of bank groups
Bank group address
Bank count per group
Bank address in bank group
Row addressing
Column addressing
Page size1
512 Meg x 8
4
BG[1:0]
4
BA[1:0]
32K (A[14:0])
1K (A[9:0])
1KB
256 Meg x 16
2
BG0
4
BA[1:0]
32K (A[14:0])
1K (A[9:0])
2KB
Note: 1. Page size is per bank, calculated as follows:
Page size = 2COLBITS × ORG/8, where COLBIT = the number of column address bits and ORG = the number of
DQ bits.
CCMTD-1725822587-10418
4gb_auto_ddr4_sdram_z90b_z10B.pdf - Rev. I 05/19 EN
2 Micron Technology, Inc. reserves the right to change products or specifications without notice.
‹ 2016 Micron Technology, Inc. All rights reserved.



Micron MT40A256M16
4Gb: x8, x16 Automotive DDR4 SDRAM
Features
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CCMTD-1725822587-10418
4gb_auto_ddr4_sdram_z90b_z10B.pdf - Rev. I 05/19 EN
3 Micron Technology, Inc. reserves the right to change products or specifications without notice.
‹ 2016 Micron Technology, Inc. All rights reserved.







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