Blog Perusahaan Tentang Mingjiada Electronics Supply and Recycling of ASMedia ASM1184 PCIe Gen2 Packet Switching Chips

Shenzhen Mingjiada Electronics Co., Ltd. as a globally renowned authorised independent distributor of electronic components, provides a long-term and stable supply of the full range of ASMedia PCIe switch chips, whilst also purchasing surplus stock globally. For the ASM1184 PCIe Gen2 packet switch chip from ASMedia, Mingjiada Electronics offers brand-new, original stock and high-value buy-back services, providing one-stop supply chain solutions for customers in sectors such as embedded systems, expansion cards and industrial control. The ASM1184 is a PCIe Gen2 packet switch chip launched by ASMedia, offering expansion capabilities from one PCIe x1 Gen2 upstream port to four PCIe x1 Gen2 downstream ports, enabling users to conveniently expand the number of PCIe ports on motherboards or embedded systems.

I. ASM1184 Product Overview

The ASM1184 is a PCIe Gen2 packet switch chip launched by ASMedia. The PCIe interface complies with the PCIe Base SPEC 2.0 specification and is backwards compatible with SPEC 1.1 and 1.0a. This chip can flexibly allocate a single PCIe lane to four independent devices, meeting the requirements for parallel expansion of multiple devices, and is widely used in embedded platforms, storage expansion and consumer electronics expansion devices.

II. ASM1184 Key Specifications

Product Type: PCIe Gen2 switch chip

Uplink Port: 1 x PCIe x1 Gen2

Downlink Ports: 4 x PCIe x1 Gen2

PCIe Specification: PCIe Base SPEC 2.0, backwards compatible with SPEC 1.1 and 1.0a

Power Management Specification: PCI Power Management SPEC 1.2

Link States: L0, L0s, L1, L2/L3 Ready, L3

Device States: D0, D3 hot

Clock Buffer: Integrated 100 MHz PCIe differential clock buffer

Debug Interface: I²C interface

Package Type: 9×9 mm QFN64

Environmental Standards: RoHS compliant

III. Detailed Explanation of Core Features

PCIe Specification Compliance: The ASM1184’s PCIe interface complies with the PCIe Base SPEC 2.0 specification and is backwards compatible with SPEC 1.1 and 1.0a. It also complies with the PCI Power Management SPEC 1.2, offering full compatibility with the PCIe power management specification.

Flexible Port Configuration: The chip provides one PCIe x1 Gen2 upstream port connected to four PCIe x1 Gen2 downstream ports, enabling flexible expansion from a single PCIe lane to four lanes to meet the requirements for parallel connection of multiple devices.

Comprehensive power management: Supports L0, L0s, L1, L2/L3 Ready and L3 link states, with device states supporting D0 and D3 hot, enabling flexible switching between different power consumption modes.

Low-latency design: The chip features low latency characteristics, ensuring efficient data transmission.

Integrated clock buffer: Features an integrated 100 MHz PCIe differential clock buffer, eliminating the need for an external clock buffer, which helps simplify circuit design and reduce BOM costs.

Debugging interface support: Supports an I²C interface for debugging purposes, facilitating configuration and fault diagnosis during the development phase.

Package and environmental compliance: Utilises a 9×9 mm QFN64 package and complies with RoHS environmental standards.

IV. Typical Application Solutions

The ASM1184 has been widely and successfully deployed in embedded expansion devices, with several mainstream expansion boards selecting this chip as their core PCIe switching solution.

Waveshare PCIe TO 4-CH HAT (Raspberry Pi 5-specific): Based on the ASM1184 chip, this board expands the Raspberry Pi 5’s PCIe interface to four PCIe FFC connectors, supporting PCIe Gen2 speeds (PCIe 2.0). It features an on-board EEPROM for storing configuration data and is equipped with power monitoring functionality. Multiple PCIe HATs can be stacked to provide up to 16 PCIe connectors.

Geekworm X1011 Expansion Board: Utilises the ASM1184 PCIe switch chip to expand a single PCIe lane into four M.2 NVMe SSD slots, supporting M.2 NVMe 2280/2260/2242/2230 SSDs.

Waveshare PCIe-Packet-Switch-4P (Raspberry Pi CM4-specific): Utilises the ASM1184 PCIe switch chip to provide four PCIe x1 slots; it is driver-free and plug-and-play, supporting PCIe Gen 2 ×1 speeds.

GLOTRENDS PA41 Four-Bay M.2 NVMe Adapter Card: Utilises the ASM1184 as the PCIe switch chip to expand a single PCIe x1 lane into four M.2 NVMe SSD connections.

Furthermore, this chip is also utilised in the ASUS Sabertooth Z97 Mark I motherboard, where the ASM1184 switch provides additional PCIe 2.0 port expansion capabilities.

V. Mingjiada Electronics’ Supply and Recycling Services

Supply Capabilities

Established in 1996, Mingjiada Electronics has specialised in the distribution of electronic components for nearly thirty years. With a stock of over 2 million SKUs, the company supports ultra-fast delivery of urgent orders within 48 hours. The company maintains a long-term, stable supply of the full range of ASMedia PCIe switches. The ASM1184 is a standard stock item at Mingjiada Electronics; the product is brand new and original, manufactured in 2022 or later, in a QFN64 package, with 3,000 units in stock, capable of meeting bulk procurement requirements for embedded systems, expansion cards, industrial control and other sectors.

Recycling and Procurement Services

Mingjiada Electronics also offers long-term, high-value procurement services for idle stock of ASMedia series chips, such as the ASM1184, worldwide, providing a fast recycling channel for manufacturers and traders holding such stock. As a professional electronic component recycler in China, the company provides long-term, one-stop inventory disposal services to electronics manufacturers, trading companies, import-export enterprises and customs clearance firms, including the recycling of electronic components, factory surplus stock, returned goods and customs-held goods, helping clients to realise the value of their inventory assets and optimise cash flow. We offer a one-stop solution for converting inventory into cash, featuring free valuation, on-site inspection and cash settlement. We accept both small and large batches, support multiple payment methods and ensure prompt payment. Clients with surplus stock are welcome to contact us at any time to discuss further.

VI. Target Application Areas

The ASM1184 is widely used in: embedded platforms (multi-device PCIe expansion for Raspberry Pi 5/CM4, edge computing devices), storage expansion (multi-bay NVMe SSD expansion boards, M.2 multi-bay adaptors), industrial control systems (PCIe device expansion for industrial PCs), consumer electronics expansion devices (PCIe-to-USB expansion cards, multi-slot PCIe expansion boards), motherboards and complete systems (on-board PCIe port expansion), amongst others.

Should you require product specifications, samples or bulk quotations, please feel free to contact the Mingjiada Electronics sales team to discuss your requirements.

Tags: ASM1184E, ASM1184