company blog about SK Hynix H5AN8G8NDJR-XNC 8Gb CMOS DDR4 Synchronous DRAM ETT Memory

Shenzhen Mingjiada Electronics Co., Ltd. supplies and recycles SK Hynix H5AN8G8NDJR-XNC 8Gb CMOS DDR4 synchronous DRAM ETT memory chips.

I. H5AN8G8NDJR-XNC Product Overview

The H5AN8G8NDJR-XNC is an 8Gb capacity, x8-bit-width CMOS process DDR4 synchronous DRAM ETT-grade memory chip launched by SK Hynix. It is a general-purpose DDR4 memory chip for industrial and consumer-grade DDR4 memory. Manufactured using a mature CMOS process, the ETT (Effectively Tested) grade indicates that the chip has passed the manufacturer’s comprehensive screening for basic electrical characteristics, timing and stability. Balancing cost, bandwidth and long-term operational reliability, it is a mainstream component for memory modules in desktop computers, industrial control motherboards, network equipment, embedded terminals and security video recorders.

This H5AN8G8NDJR-XNC memory chip complies with the JEDEC DDR4 standard, utilises an 8-bit prefetch architecture, and supports high-speed data transfer rates of up to 3200MT/s. with a standard operating voltage of 1.2V. Featuring a compact, low-profile FBGA-78 package, it enables high-density memory stacking within limited PCB space, making it suitable for both mass production of memory modules and the refurbishment market. It offers a stable lead time and is compatible with all DDR4 controller solutions across all platforms.

II. H5AN8G8NDJR-XNC Core Hardware Specifications

1. Basic Memory Architecture

Part Number: H5AN8G8NDJR-XNC

Memory Density: 8Gb (1G × 8-bit), 8 Gb capacity per chip

Bus Width: x8 (8-bit data channels)

Prefetch Architecture: 8-bit prefetch, internal pipelined synchronous read/write

Bank Configuration: Standard DDR4 multi-paged bank architecture, supporting configurable burst lengths of BL4/BL8

Process Technology: CMOS dynamic memory process

2. Electrical and Speed Parameters

Standard Power Supply: Unified VDD/VDDQ at 1.2V, voltage range 1.14V–1.26V

Nominal Speed: DDR4-3200, equivalent data rate 3200 Mbps, reference clock 1600 MHz

Clock Architecture: Fully differential CK/CK# clock inputs, with corresponding differential DQS/DQS# data strobes

Integrated VrefDQ internal reference voltage generation, eliminating the need for external voltage divider circuits

Timing Configuration: Programmable CAS latency CL9–CL20; additional latency AL can be flexibly configured

3. Package and Physical Dimensions

Package Type: FBGA-78 (78-ball thin-profile ball grid array)

Dimensions: 11.0 mm × 7.5 mm, maximum thickness 1.2 mm

Ball Pitch: 0.8 mm, SMT surface-mount technology

Packaging Specifications: Shipped in trays; standard tray quantity: 1,600 pieces per tray

Environmental Compliance: Lead-free and halogen-free; fully compliant with RoHS and REACH standards

4. Environmental Reliability

Commercial standard temperature range: 0°C to +85°C

Supports automatic self-refresh and temperature-adaptive refresh; no data loss during read/write operations at high or low temperatures

Low static power consumption in standby mode, suitable for equipment requiring long-term, uninterrupted operation

III. DDR4-Specific Core Features

Read/Write Balancing and Calibration Suite: Built-in Write Levelisation, ZQ impedance calibration and TDQS on-chip termination functions automatically match PCB trace impedance, eliminating high-speed signal timing shifts and significantly reducing hardware debugging complexity, whilst ensuring stable signal integrity at high frequencies of 3200 MHz.

Data security mechanisms include write CRC checking and DM (Data Mask) functions, which sample data on both rising and falling edges to perform real-time error checking and correction during data writing, thereby reducing memory read/write errors; supports asynchronous reset to rapidly reset the memory controller following an unexpected power failure.

The low-power, energy-efficient design incorporates dynamic on-chip termination and multi-level self-refresh modes, with multi-tiered power consumption control across standby, idle, and read/write states. Compared to DDR3 chips of the same capacity, power consumption is reduced by over 20 per cent, making it suitable for low-power embedded and edge computing devices.

A fully synchronous pipelined architecture ensures that address and control signals are latched only on the rising edge of the clock, whilst data and select signals are sampled on both edges. Internal multi-stage pipelining enables parallel processing, delivering sustained high bandwidth to meet the demands of concurrent read/write scenarios across multiple tasks.

IV. Explanation of ETT Chip Grades (Core Differentiating Advantages)

The suffix ‘XNC’ in the model H5AN8G8NDJR-XNC corresponds to ETT-certified ‘Effective Test’ grade chips, which differ from ‘uTT’ (untested white chips) and the manufacturer’s ‘Major’ premium-grade chips:

Comprehensive electrical testing is conducted after factory packaging, including voltage margin, full timing stress, high and low temperature cycling, read/write endurance and leakage detection, to eliminate defective units; consistency is far superior to that of untested ‘uTT’ chips;

The cost is moderate, with no premium associated with original manufacturer’s ‘Major’ grade modules, making it suitable for bulk modules, industrial control, security systems, and the second-hand memory refurbishment market;

Stability meets the requirements for 7×24-hour uninterrupted equipment operation, with a failure rate far lower than that of unselected blank modules, making it the top choice for value-for-money mid-range storage solutions.

V. Typical Application Scenarios for H5AN8G8NDJR-XNC

Consumer electronics storage modules: DDR4 memory modules for desktop PCs, SODIMM memory for laptops, all-in-one PCs and mini-PCs; compatible with the full range of Intel/AMD DDR4 platforms;

Industrial embedded devices: industrial control motherboards, edge gateways, machine vision industrial PCs and PLC motion controllers; stable operation across a wide temperature range of 0–85°C;

Networking and security equipment: Switches, routers, NVRs (Network Video Recorders), and storage motherboards for 4K cameras; suitable for high-throughput continuous read/write scenarios;

AIoT and end-user devices: Smart digital signage, self-service terminals, in-car multimedia systems, and small local computing boxes;

Component distribution and recycling support: Supports the recycling of electronic components and the production of refurbished memory modules; ample market supply, suitable for both recycling and distribution business models.

VI. Summary of Product Advantages for H5AN8G8NDJR-XNC

Balanced specifications: 8 Gb x 8-bit bus width + 3200 Mbps bandwidth, covering the vast majority of mid-range storage requirements with exceptional versatility;

Compact packaging: FBGA-78 thin-profile packaging and high-density PCB layout reduce the overall size of the device;

Easy Debugging: Built-in ZQ calibration, write equalisation and CRC verification reduce hardware design cycles;

ETT Quality Assurance: Comprehensive testing by the original manufacturer, balancing stability and cost, making it suitable for mass production;

Full Platform Compatibility: Standard JEDEC DDR4 protocol with no controller compatibility barriers; ample stock is available, supporting both bulk supply and inventory buy-back.