Microchip SST49LF004B-33-4C-NHE
Ultra-fast read-write performance for demanding applications





Brands: Microchip/SST
Mfr.Part #: SST49LF004B-33-4C-NHE
Datasheet: SST49LF004B-33-4C-NHE Datasheet (PDF)
Package/Case: PLCC-32
Product Type: Memory
RoHS Status:
Stock Condition: 8,558 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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SST49LF004B-33-4C-NHE General Description
PRODUCT DESCRIPTIONThe SST49LF004B flash memory devices are designed to interface with host controllers (chipsets) that support a low pin-count (LPC) interface for BIOS applications. The SST49LF004B devices comply with Intel’s LPC Interface Specification, supporting single-byte Firmware Memory cycle type.The SST49LF004B devices are backward compatible to the SST49LF004A Firmware Hub. In this document, FWH mode in the SST49LF004A specification is referenced as the Firmware Memory Read/Write cycle. Two interface modes are supported by the SST49LF004B: LPC mode (Firmware Memory cycle types) for in-system operations and Parallel Programming (PP) mode to interface with programming equipment

Features
- 4 Mbit SuperFlash memory array for code/data storage
- – SST49LF004B: 512K x8 (4 Mbit)
- Conforms to Intel LPC Interface Specification
- – Supports Single-Byte Firmware Memory Cycle Type
- Flexible Erase Capability
- – Uniform 4 KByte sectors
- – Uniform 64 KByte overlay blocks
- – Chip-Erase for PP Mode Only
- Single 3.0-3.6V Read and Write Operations
- Superior Reliability
- – Endurance: 100,000 Cycles (typical)
- – Greater than 100 years Data Retention
- Low Power Consumption
- – Active Read Current: 6 mA (typical)
- – Standby Current: 10 µA (typical)
- Fast Sector-Erase/Byte-Program Operation
- – Sector-Erase Time: 18 ms (typical)
- – Block-Erase Time: 18 ms (typical)
- – Chip-Erase Time: 70 ms (typical)
- – Byte-Program Time: 14 µs (typical)
- – Chip Rewrite Time: 8 seconds (typical)
- – Single-pulse Program or Erase
- – Internal timing generation
- CMOS and PCI I/O Compatibility
- Two Operational Modes
- – Low Pin Count (LPC) interface mode for in-system operation
- – Parallel Programming (PP) mode for fast production programming
- Low Pin Count (LPC) Interface Mode
- – LPC bus interface supporting byte Read and Write
- – 33 MHz clock frequency operation
- – WP# and TBL# pins provide hardware write protect for entire chip and/or top Boot Block
- – Block Locking Registers for individual block Write-Lock and Lock-Down protection
- – JEDEC Standard SDP Command Set
- – Data# Polling and Toggle Bit for End-of-Write detection
- – 5 GPI pins for system design flexibility
- – 4 ID pins for multi-chip selection
- Parallel Programming (PP) Mode
- – 11-pin multiplexed address and 8-pin data I/O interface
- – Supports fast In-System or PROM programming for manufacturing
- Packages Available
- – 32-lead PLCC
- – 32-lead TSOP (8mm x 14mm)
- All non-Pb (lead-free) devices are RoHS compliant


Specifications
Parameter | Value | Parameter | Value |
---|---|---|---|
Mounting Style | SMD/SMT | Series | SST49LF |
Memory Size | 4 Mbit | Supply Voltage - Min | 3 V |
Max Supply Voltage | 3.6 V | Active Read Current - Max | 12 mA |
Interface Type | SPI | Maximum Clock Frequency | 33 MHz |
Memory Organization | 512 k x 8 | Data Bus Width | 8 bit |
Timing Type | Asynchronous, Synchronous | Minimum Operating Temperature (°C) | 0 |
Maximum Operating Temperature (°C) | + 70 | Architecture | Sector |
Height | 2.84 (Max) mm | Length | 14.05 (Max) mm |
Memory Type | NOR | Moisture Sensitive | Yes |
Programming Voltage | 3 V to 3.6 V | Speed | 33 MHz |
Standard | Not Supported | Factory Pack Quantity | 30 |
Manufacturer Type | Boot Block | Width | 11.51 (Max) mm |
Shipping
Shipping Type | Ship Fee | Lead Time | |
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time:Shipping fee depend on different zone and country.
Payment
Terms of payment | Hand Fee | |
---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.5% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step1 :Product Inventory
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Step2 :Pressure Relief Packaging
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Step3 :Anti Static Packaging
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Step4 :Protective Packaging
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Step5 :Sealed Packaging
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Step6 :Preparation for shipment
We will inspect and count all goods before shipping to ensure that all products are intact and in accurate quantity, and will fully package them to ensure that they will not be damaged during transportation.
Q: How can I order the SST49LF004B-33-4C-NHE?
A: To place an order for the SST49LF004B-33-4C-NHE, select the "Add to Cart" button associated with the product listing on our website. Once selected, you can finalize your purchase by proceeding to the checkout page, where you can enter your payment and shipping information.
Q: What is the warranty period for the SST49LF004B-33-4C-NHE?
A: We offer a 1-year warranty on the SST49LF004B-33-4C-NHE. This warranty covers any defects in materials and artistry under normal use. During the warranty period, if the product is found to be defective, it will be repaired or replaced at no charge. For further details, please refer to our warranty policy.
Q: How does Ovaga ensure the authenticity of SST49LF004B-33-4C-NHE from Microchip/SST?
A: Ovaga has a dedicated business development team that rigorously tests and verifies the credentials of original Microchip/SST manufacturers and authorized agents. All Microchip/SST suppliers must pass a qualification review before they can list their SST49LF004B-33-4C-NHE products on our platform. We emphasize sourcing from reliable channels and maintaining high product quality standards, ensuring you can make your purchase with confidence.
Q: How can I find detailed information about the SST49LF004B-33-4C-NHE chips, such as application notes, factory information, and images?
A: You can utilize Ovaga's intelligent search engine, filter by the Ethernet PHY Products category, or visit the Microchip/SST information page to find comprehensive details about the SST49LF004B-33-4C-NHE.
Q: Are the price and stock information for SST49LF004B-33-4C-NHE on Ovaga's platform accurate?
A: Inventory levels for Microchip/SST products can fluctuate and may not be updated in real time. The information is refreshed periodically within 24 hours. To confirm stock availability and final pricing, you must confirm your order with an Ovaga salesperson or customer service representative before proceeding with payment.
Q: Can I place orders offline with Ovaga?
A: Yes, offline orders are accepted. You can navigate to the "My Orders" section and enter transaction management to place your order. Reviewing the "Order Details" and proceeding to place the order is straightforward. Additionally, you may benefit from coupons or selected gifts when ordering online.
Q: What payment methods are accepted by Ovaga?
A: Ovaga accepts various payment methods, including Wire Transfer, PayPal, Credit Cards, Western Union, and Money Gram.
Q: How is shipping arranged, and how can I track my package?
A: Customers can choose from industry-leading freight companies such as DHL, FedEx, UPS, TNT, EMS, and Registered Air Mail. Once your order is processed for shipment, you will receive an email with the shipping status and tracking number. Note that tracking information may take up to 24 hours to be displayed by carriers. Typically, express delivery takes 2-5 days.
Q: What is the return or replacement process for SST49LF004B-33-4C-NHE?
A: Ovaga conducts Pre-Shipment Inspections (PSI) on all orders to ensure quality before shipment. Suppose there are issues such as quantity discrepancies, incorrect items, or visible defects (e.g., breakage or rust), and they are acknowledged by us. In that case, returns or replacements will be accepted under the following conditions:
- ●The defect must be reported within 365 days after delivery.
- ●The product must be unused and in its original, unopened packaging.
- ●Requesting Return Authorizations must be obtained.
For the return process:
- ●Please inform us within 365 days of receiving the product.
- ●Obtain Return Authorization from our team.
- ●Please refer to our After-Sale Matters for more detailed instructions.
Q: How can I contact Ovaga for support, including obtaining datasheets or pin diagrams for the SST49LF004B-33-4C-NHE?
A: For any after-sales support or technical inquiries, including requests for datasheets or pin diagrams, please get in touch with us via email at [email protected].
Q: What can you tell me about Ovaga's quality assurance practices?
A: Ovaga is committed to maintaining the highest standards of quality. We are certified under ISO14001, ISO 9001, IATF16949, ISO13485, and DUNS standards by the Quality Systems Registrar. This certification signifies that our operational systems meet stringent international standards in quality management. Our compliance is regularly reviewed and tested to ensure ongoing adherence to these standards, affirming our commitment to quality and continuous improvement.
Q: What do the ISO, IATF, and DUNS certifications mean for customers of Ovaga?
A: Our ISO, IATF, and DUNS certifications assure customers that Ovaga operates systems that are both accurate and comprehensive, meeting the rigorous requirements of the ISO, IATF, and DUNS standards. This certification underscores our long-term commitment to continuous improvement across our operations. As a note to our customers, while we strive for accuracy in product data on our website, we recommend referring to the manufacturer's datasheet or catalog for confirmed product specifications before placing an order. If you identify any discrepancies, please get in touch with us immediately.
Part points
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The SST49LF004B-33-4C-NHE is a high-density NOR flash memory device from Microchip/SSS. It offers 4 Megabit storage, operates at 2.7-3.6V, and has a PLCC-32 package. This type of flash memory is commonly used in firmware storage for electronic devices like embedded systems, networking equipment, industrial control systems, and communication devices. Its reliability and high-speed operations make it an essential choice for these applications.
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Equivalent
The equivalent product of SST49LF004B-33-4C- NHE is likely other Microchip/ SST NOR Flash memory with similar capacities (e.g., SST49LF008B or SST25VF016B). Be sure to check the specifications for compatibility. -
Features
The SST49LF004B flash memory device features a 4 Megabit capacity, operating at 2.7-3.6V. It has an 8-sector architecture for flexible storage, supporting high-speed read and write operations. Designed for reliability and durability, it comes in PLCC-32 package type. This device finds applications mainly in firmware storage for electronic devices like embedded systems, networking equipment, industrial control systems, and communication devices. -
Pinout
The SST49LF004B-33-4C-NHE is a 47-pin Flash memory chip, specifically a NOR flash memory device. Here's the concise info: * Pin count: 47 * Function: + Byte-wide interface (8-bit) + Single-power-supply operation + Supports page mode and sector mode operations + Write-protect pin for security purposes Some key specifications: * Capacity: 4 Mbit (524288 bytes) * Organization: 128K x 32 bits * Voltage: 2.7V - 3.6V (operating), 4.5V (write-inhibit) * Max write cycle count: 100,000 cycles per byte The SST49LF004B-33-4C-NHE is a popular choice for embedded systems and industrial applications due to its high reliability, low power consumption, and fast programming times. -
Manufacturer
The SST49LF004B-33-4C-NHE flash memory device is manufactured by Microchip Technology Inc., commonly known as Microchip. Microchip is a semiconductor company that specializes in developing integrated circuits, microcontrollers, and other digital solutions for various industries. -
Application Field
The SST49LF004B-33-4C-NHE is a flash memory device used primarily for firmware storage in embedded systems, networking equipment, industrial controls, and communication devices. -
Package
The SST49LF004B-33-4C-NHE flash memory device has a PLCC-32 package type.
Assembly Advice
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