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Product Overview

MT41J64M16JT-125:G is a 1Gb (128MB) capacity DDR3 SDRAM chip launched by Micron (Micron Technology), with a 64M × 16-bit organizational structure, using the standard JEDEC DDR3 SDRAM protocol, and supporting high-bandwidth, low-power data transmission. Its operating speed is DDR3-1600 (125MHz clock, data rate is 1600 Mbps/pin), which is suitable for embedded control systems, network communication equipment and consumer electronic products that require high-speed memory access.

Core parameter specifications

Item Detailed parameters

Storage capacity 1Gb (128MB)
Organization structure 64M x 16 bits
Data rate Up to 1600Mbps/pin (DDR3-1600)
Clock frequency 125MHz
CAS latency Support CL=5, 6, 7, 8, 9, 10, 11
Operating voltage (VDD) 1.5V ±0.075V
I/O voltage (VDDQ) 1.5V ±0.075V
Package form FBGA-96 (ball grid array package)
Operating temperature range –40°C ~ +95°C (industrial grade)
Refresh cycle 7.8μs (standard) / 3.9μs (high temperature)
Pin function and package description
The chip adopts 96-ball FBGA package (pin pitch 0.8mm) and has the following main pin functions:
CK / CK#: differential clock input
CS#: chip enable
RAS#, CAS#, WE#: command control input
A0–A15: address lines
BA0–BA2: bank address selection
DQ0–DQ15: data lines
DM0/DM1: data mask
ODT: on-chip terminal matching
RESET#: reset
ZQ: calibration control pin
The package adopts BGA ball array layout, which is suitable for PCB design with high-speed signal routing and suitable for automated mounting.

Product advantages and features

• ✅ High-speed data access: supports DDR3-1600 data rate to meet high-speed cache and processing requirements;
• ✅ Low-power operation: the operating voltage is only 1.5V, which significantly reduces power consumption;
• ✅ Fully compatible with DDR3 standards: supports automatic refresh, delay-locked loop (DLL), burst access, etc.;
• ✅ Industrial-grade reliability: suitable for devices with large temperature changes and harsh environments;
• ✅ Multi-bank architecture: 8-Bank design can improve concurrent access efficiency;
• ✅ Multiple low-power modes: pre-charge, automatic refresh, self-refresh and other energy-saving management mechanisms;

Typical application scenarios

• Network switches, router caches
• Industrial automation and edge computing equipment
• Embedded controllers (DDR extensions for FPGA and SoC platforms)
• Consumer electronics (set-top boxes, display terminals)
• Communication equipment
• In-vehicle infotainment systems

Typical access circuit design recommendations

When using MT41J64M16JT-125:G with a main control chip (such as FPGA, SoC), it is recommended to:

• Use differential pair wiring to connect CK/CK#
• All Address and control lines should be impedance matched (generally 33~47Ω in series)
• DQ line group should avoid long distance or cross-layer wiring to ensure signal synchronization
• ZQ pin connects a 240Ω precision resistor to GND for resistance calibration
• It is recommended to use the DDR PHY controller that comes with the main control chip to configure the initialization process

Add bypass capacitors (0.1µF and 10µF) to filter to VDD and VSS

Compatible and alternative model recommendations

Model Capacity Features

• MT41K64M16JT-125 1Gb DDR3L low voltage version (1.35V)
• K4B1G1646G-BCH9 1Gb Samsung DDR3 SDRAM with the same capacity
• H5TQ1G63EFR-PBI 1Gb SK hynix compatible version
• IS43TR16256A-125KBL 512Mb ×2 ISSI Industrial DDR3 Solution

Summary

MT41J64M16JT-125:G is a high-performance DDR3 SDRAM launched by Micron. It combines high speed, low power consumption and industrial temperature support to provide a very reliable solution for systems that require high-bandwidth cache or temporary data processing. It can be seamlessly integrated with mainstream SoC and FPGA systems, and performs particularly well in embedded platforms, communication equipment, and industrial automation. For projects that require stability, reliability, and high-speed performance, it is a very cost-effective storage option.
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