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IS62WV5128BLL-55T2LIT

4Mb (512Kx8) async SRAM, 55ns, 2.4-3.6V, 36-ball TFBGA, industrial temp

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Manufacturer Part：

IS62WV5128BLL-55T2LIT

Package：

36-Ball TFBGA (6.0 x 6.0 x 1.0 mm, 0.75mm pitch)

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Description

Product Overview

The IS62WV5128BLL-55T2LIT is a 4Mb (512K x 8-bit) high-speed asynchronous CMOS static RAM manufactured by ISSI (Integrated Silicon Solution Inc.). Organized as 524,288 words by 8 bits, this SRAM features a fast 55ns access time with low power consumption. The BLL-55T2LIT variant comes in a 36-ball TFBGA (0.75mm pitch) package rated for industrial temperature range (-40°C to +85°C) with a 2.4V to 3.6V supply voltage.

Key Specifications

Memory Size 4 Mb (512K x 8)
Organization 524,288 x 8 bits
Access Time 55 ns
Supply Voltage 2.4V to 3.6V
Active Current 45 mA (Typ) @ 55ns
Standby Current 8 mA (Typ)
Package 36-Ball TFBGA (6x6mm, 0.75mm pitch)
Operating Temperature -40°C to +85°C (Industrial)
Interface Asynchronous Parallel
Data Retention Voltage 1.5V (Min)

Features

  • High-speed 55ns access time for fast data retrieval
  • Low power CMOS technology with 45mA active current
  • Single 2.4V to 3.6V power supply operation
  • Data retention down to 1.5V for battery backup applications
  • Full static operation — no clock or refresh required
  • Common I/O with separate byte-limited output enable
  • Industrial temperature range up to +85°C

Applications

  • Networking and telecommunications equipment
  • Industrial control and automation systems
  • Embedded processor cache and buffer memory
  • DSP and FPGA companion SRAM
  • Medical and instrumentation data buffering

The ISSI IS62WV5128BLL-55T2LIT is a 4-megabit asynchronous CMOS static RAM organized as 524,288 words by 8 bits. Fabricated using ISSI’s high-performance CMOS technology, this device delivers a fast 55ns maximum access time while maintaining low power consumption. The SRAM operates from a single 2.4V to 3.6V power supply and features data retention down to 1.5V, making it suitable for battery-backed applications. The BLL package variant utilizes a compact 36-ball TFBGA with 0.75mm ball pitch, ideal for space-constrained designs. The T2LIT suffix denotes the industrial temperature range (-40°C to +85°C) qualification. Full static operation means no clocks or refresh cycles are required, simplifying system design.

The IS62WV5128BLL-55T2LIT is an asynchronous static RAM that uses a six-transistor (6T) CMOS memory cell array. Each memory cell consists of two cross-coupled inverters and two access transistors, forming a bistable latch that stores one bit of data without requiring periodic refresh. Address inputs are decoded by row and column decoders to select the target memory cell. When Chip Enable (CE1) is active low and CE2 is active high, and Output Enable (OE) is asserted, the selected byte is driven onto the data I/O pins through the sense amplifiers and output buffers. Write Enable (WE) controls the write operation, where data on the I/O pins is written to the selected address. The 55ns access time is achieved through optimized decoder paths and fast sense amplifier design. Low-power standby mode is entered when the chip is deselected.

Pin Name Type Function
A0-A18 Address Inputs Input 19 address lines for 512K byte selection
I/O0-I/O7 Data Bus I/O 8-bit bidirectional data bus
CE1 Chip Enable 1 Input Active low chip enable
CE2 Chip Enable 2 Input Active high chip enable
OE Output Enable Input Active low output enable
WE Write Enable Input Active low write enable
VDD Power Power 2.4V to 3.6V supply voltage
VSS Ground Power Ground reference
  • Networking router and switch packet buffer memory
  • Embedded processor cache for DSP and FPGA systems
  • Industrial PLC and CNC controller data buffering
  • Medical imaging and diagnostic equipment working memory
  • Telecommunications line card and baseband processing buffer
Manufacturer Part Number Package Notes
Cypress CY62148EV30LL-55ZSXI TSOP-II-44 4Mb SRAM, 55ns, 3.3V
ISSI IS62WV5128DBLL-55TLI TFBGA-36 Same spec, commercial temp
Microchip AS6C4008-55SIN TSOP-II-32 4Mb SRAM, 55ns, 5V compatible
Alliance AS6C4008-55SIN TSOP-II-32 4Mb SRAM, 55ns
ISSI IS62WV5128BLL-45T2LIT TFBGA-36 45ns faster version
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

3. Industry Standard Compliance

Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
  • Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
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  • Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.

4. Professional Reliability Control

For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

5. Traceability Management System

We establish a complete product traceability system. Each batch of goods corresponds to independent batch number, sourcing record, inspection record and delivery record. Customers can query the whole lifecycle information of components at any time. This system effectively solves quality risks and facilitates after-sales handling and production quality control for your company.

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If any product is confirmed to have non-conformity quality problems due to our reasons after receipt, we provide free return, exchange and supplementary delivery services. Our professional quality team will also conduct root cause analysis to optimize our quality control process. We respond to quality feedback within 24 hours to resolve your worries efficiently.

Contact Us

If you have inquiries about our quality standards, inspection procedures or product certification documents, please feel free to contact us:

 

Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

Materialparts is a professional global supplier of electronic components with over 20 years of industry experience. We provide one-stop supply of passive components, integrated circuits, as well as parts for industrial control, automotive electronics, consumer electronics and medical devices. Below are the unified shipping and payment policies applicable to all orders, samples and bulk purchases worldwide.

1. Payment Terms

We offer a variety of secure and convenient payment methods to meet diverse business cooperation needs. Details are as follows:
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  • T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
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  1. Settlement Currency

     

    US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.

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    All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.

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2. Shipping & Delivery

We partner with leading global logistics providers to ensure safe and fast delivery worldwide. Relevant details are listed below:
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  • Economy Logistics: Air freight and sea freight for large-volume cargo
  • Domestic Delivery: SF Express, Yunda Express
  1. Order Processing Time
  • In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
  • Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
  1. Estimated Transit Time
  • International Express: 3 – 7 working days globally
  • Air Freight: 7 – 12 working days
  • Sea Freight: 25 – 40 working days for heavy and large bulk cargo
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  • Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
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    Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.

3. General Order Rules & Notes

  1. MOQ & Sample Service

     

    We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.

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    All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.

4. Customs & Liability Statement

  1. Import Duties & Taxes

     

    All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.

  2. Handling of Lost or Damaged Goods
  • In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
  • We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.

5. Local Pickup in Shenzhen

Local pickup service is available for customers in Shenzhen and surrounding areas:
  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
  • Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
  • Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.

Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

Core Services

1. One-stop Sourcing & BOM Support

We specialize in a full range of passive and active electronic components, including SMD resistors, power resistors, connectors, aviation connectors, LED beads, flexible circuit boards, printed circuit boards, and integrated circuits. Our professional team provides BOM list consolidation, component matching, and alternative model recommendation services. We support sample orders, small-batch trial production, and mass production orders with flexible MOQs to meet diverse procurement needs.

2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

3. Fast Quotation & Order Processing

Our customer service team responds promptly to inquiries and quotation requests. All in-stock orders will be processed within one working day. We provide stocking reservation services for long-term cooperative customers, effectively solving problems such as component shortages and unstable supply chains.

4. Professional Technical Support

Our senior engineer team provides free technical consultation, model selection guidance and original manufacturer datasheets. We assist customers in solving problems related to product R&D, circuit design and component application, providing reliable technical support for project progress.

5. Sourcing for Special Components

Relying on our global supply chain network, we professionally source scarce components, obsolete parts and customized special components to efficiently solve your procurement difficulties.

6. Global Logistics & Document Services

We cooperate with mainstream international logistics providers including DHL, FedEx, UPS and TNT to achieve fast global delivery. We can provide complete export documents such as customs declaration files, commercial invoices and packing lists to ensure smooth customs clearance for international shipments. Local pickup is also available for customers in Shenzhen, China.

Professional Packaging Standards

Electronic components are sensitive to static electricity, collision, moisture and dust. We adopt industry-standard anti-static packaging solutions to fully ensure the integrity of goods during transportation and storage.

1. General Packaging Specifications

  • All components are packed separately to avoid damage caused by friction and collision;
  • Shockproof buffer materials are added for fragile products to ensure transportation safety;
  • Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.

2. Classified Professional Packaging

  • Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
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  • Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
  • Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
  • Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.

3. Custom Packaging Services

We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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