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Home > Products > Integrated Circuits (ICs) > Memory > Memory

STMicroelectronics M58LW064D110N6

Name: M58LW064D110N6
Brand: STMicroelectronics
SKU: M58LW064D110N6
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: M58LW064D110N6

Manufacturer:: STMicroelectronics

Category:: Memory

Package:: 56-TFSOP (0.724", 18.40mm Width)

Datasheet:: M58LW064D110N6.pdf

Description:: IC FLASH 64MBIT PARALLEL 56TSOP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

M58LW064D110N6 from STMicroelectronics is a 64 Mbit (8 Mb × 8 / 4 Mb × 16) uniform-block NOR Flash memory with single 2.7–3.6 V supply, 110 ns random read access, 16-word write buffer, and 100,000 program/erase cycles per block. It operates in TSOP56 package and supports CFI-compliant command interface for embedded boot code and firmware storage in industrial controllers.

For engineers reviewing the M58LW064D110N6 datasheet, M58LW064D110N6 pinout, M58LW064D110N6 application, or M58LW064D110N6 equivalent, key selection criteria include uniform 64 KB/128 KB block architecture, VPEN-controlled erase/program enable, dual-mode STS (Ready/Busy or interrupt pulse), and byte/word organization select via BYTE pin - all critical for deterministic firmware update and secure boot partitioning.

Technical Context

This NOR Flash implements a JEDEC-standard Common Flash Interface (CFI) with on-chip Program/Erase Controller managing all timing-critical sequences. Its dual-bus capability (x8/x16) is controlled by the BYTE pin, and address decoding uses A0–A22 with A0 active only in x8 mode.

The device features hardware-based security including non-volatile block protection, 128-bit OTP protection register (64-bit ST-unique + 64-bit user-programmable), and VPEN pin gating - ensuring that program/erase operations are physically disabled unless VPEN is asserted high.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	64 Mbit (8 Mb × 8 or 4 Mb × 16 configuration)
Supply Voltage	2.7–3.6 V VDD/VDDQ - enables direct interface with 3.3 V logic without level shifters
Random Read Access	110 ns - determines minimum instruction fetch latency in boot ROM applications
Write Buffer Size	16 words - reduces host CPU overhead during firmware writes by batching up to 32 bytes (x16) or 16 bytes (x8)
Block Erase Endurance	100,000 cycles per block - supports field-upgradable firmware with long-life partitioning
Block Architecture	64 uniform blocks of 128 KB (x8) or 64 KWords (x16) - simplifies wear leveling and partition management
Status Signal Mode	Configurable STS pin: static Ready/Busy or pulsing interrupt - enables either polling or event-driven firmware update flow

Pinout & Package

Package: TSOP56 (14 × 20 mm, lead-free compliant). Pin count: 56 leads. Compatible with standard surface-mount reflow profiles per J-STD-020B.

Pin/Terminal	Circuit Role	Design Meaning
A0–A22	Address Inputs	A0 used only in x8 mode for byte selection; A1–A22 decode full 64 Mbit address space (23-bit)
DQ0–DQ15	Data I/O (bidirectional)	Configurable x8 (DQ0–DQ7) or x16 (DQ0–DQ15); latched on WE↑ or CE edge for commands/data
E0, E1, E2	Chip Enables	Three independent CE inputs support multi-chip addressing or hierarchical memory mapping
G	Output Enable	Controls data bus output drivers; low = enabled; required for read access
W	Write Enable	Latches address/data on rising edge; primary control for command and data input timing
VPEN	Program/Erase Enable	Hardware gate: program/erase prohibited unless VPEN = high - prevents accidental corruption
STS	Status Output	Open-drain; configurable as Ready/Busy status flag or end-of-operation interrupt pulse
BYTE	Bus Width Select	High = x16 mode (A1 LSB); Low = x8 mode (A0 LSB) - sets fundamental data path width
RP	Reset/Power-Down	Active-low; resets internal state machine and enters low-power mode when held low
VDD, VDDQ	Power Supplies	VDD = core logic; VDDQ = I/O drivers - decoupled supplies reduce noise coupling during fast reads/writes
VSS, VSSQ	GND Returns	Separate analog/digital ground pins minimize switching noise on data bus

Key Features

Feature	Design Value
Uniform Block Architecture	64 identical 128 KB (x8) or 64 KWord (x16) blocks - eliminates complex block-size-aware firmware logic
Program/Erase Suspend	Read or program any other block during erase/program - enables real-time system responsiveness during updates
CFI Compliance	JEDEC JESD68-defined query table at fixed addresses - enables OS-agnostic flash detection and driver auto-configuration
128-bit Protection Register	64-bit factory-unique ID + 64-bit user-writable OTP segment - supports device authentication and secure key binding
Auto Low Power Mode	Enters reduced-current state automatically after bus inactivity during read - cuts standby power without software intervention

Applications

Industrial PLC Firmware Storage

Automotive Body Control Module Boot Code

Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers with field service requirements.

IC Role / Device Role / Timing Role: Non-volatile boot memory holding executable firmware image; accessed at power-on reset and during over-the-air updates.

Use Value: Uniform 64 KB blocks simplify partitioning into protected boot loader + updatable application sections; 100K cycle endurance ensures >10 years of field updates.

Use Scenario: Holding certified boot code and calibration data in automotive body control units (BCUs) requiring ASIL-B compliance.

IC Role / Device Role / Timing Role: Secure, CFI-compliant NOR Flash providing deterministic read latency (<110 ns) for safe boot sequence execution.

Use Value: VPEN gating and non-volatile block protection prevent unauthorized or accidental firmware overwrite; STS interrupt mode reduces CPU polling overhead.

Medical Device Configuration Memory

Networking Equipment Bootloader Storage

Use Scenario: Retaining device-specific calibration parameters and regulatory configuration profiles in Class II medical instruments.

IC Role / Device Role / Timing Role: EEPROM-replacement storage with higher density and faster write buffering; accessed via SPI-to-NOR bridge or parallel bus.

Use Value: 128-bit OTP protection register stores unique device ID and cryptographic keys; byte/word select (BYTE pin) enables legacy 8-bit microcontroller compatibility.

Use Scenario: Hosting bootloader (e.g., U-Boot) and FPGA bitstream in enterprise switches/routers requiring rapid, reliable cold-start.

IC Role / Device Role / Timing Role: Primary boot memory mapped into processor's address space; supports x16 burst reads for fast decompression and execution.

Use Value: 16-word write buffer accelerates bootloader updates; CFI query enables automatic driver initialization without hard-coded timing tables.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NOR Flash memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
S29GL064N90TFI010	64 Mbit, 90 ns read, 3.0–3.6 V supply, PLCC56 package - no VPEN pin, different CFI query structure	Lacks hardware VPEN gating and OTP protection register; requires software-only block lock management	Select when VPEN control and factory-unique ID are not required; verify CFI descriptor compatibility in bootloader
MX29LV640ETTI-90G	64 Mbit, 90 ns read, 2.7–3.6 V, TSOP56 - supports only x16 mode, no BYTE pin, no suspend/resume	No byte/word mode flexibility or program/erase suspend; simpler command set but less runtime adaptability	Prefer for cost-sensitive, fixed-x16 designs where suspend functionality is unnecessary and layout space is constrained

Compared with S29GL064N90TFI010 and MX29LV640ETTI-90G, the M58LW064D110N6 uniquely combines VPEN hardware gating, 128-bit OTP protection register, and true program/erase suspend - making it the only option among the three suitable for safety-critical, field-upgradable systems requiring both physical and logical security layers.

Availability

M58LW064D110N6 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, medical device configuration storage, and networking equipment bootloaders requiring stable component supply across extended product lifecycles.

Supply support for M58LW064D110N6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, specializing in microcontrollers, power management, and non-volatile memory for industrial, automotive, and consumer applications.

The M58LW064D belongs to ST's legacy parallel NOR Flash product line, designed specifically for deterministic boot code storage and firmware update in resource-constrained embedded systems requiring high reliability and long-term availability.

FAQ

What is the function of the VPEN pin on the M58LW064D110N6?

The VPEN (Program/Erase Enable) pin is a hardware safety gate: program and erase operations are physically disabled unless VPEN is driven high. This prevents accidental firmware corruption during power transients or software faults. It is not a software-configurable feature - its assertion is mandatory for any write-cycle initiation, and it must remain high throughout the entire operation.

How does the BYTE pin affect memory organization and addressing?

The BYTE pin selects between x8 and x16 data bus modes. When BYTE = low, the device operates in x8 mode: A0 is used as the LSB for byte selection within a word, and DQ0–DQ7 carry data. When BYTE = high, it operates in x16 mode: A1 becomes the LSB, A0 is ignored, and DQ0–DQ15 are active. Address mapping and command interpretation change accordingly - this is a hardware-level configuration, not software-controllable.

Can the M58LW064D110N6 be used in systems requiring functional safety certification (e.g., ISO 26262)?

While the M58LW064D110N6 itself is not ASIL-certified, its design features - including non-volatile block protection, VPEN hardware gating, STS interrupt signaling for operation completion, and 100,000-cycle endurance - support implementation of safety mechanisms in ASIL-B systems. Customers must perform their own FMEDA and integrate appropriate diagnostic software per ISO 26262 Part 5, as ST did not release AEC-Q100 or safety manual documentation for this legacy part.

What is the difference between STS in Ready/Busy mode versus Status mode?

In Ready/Busy mode, STS outputs a static low signal during active program/erase and high when idle - suitable for polling. In Status mode, STS pulses low for 50 ns at the exact moment a program or block erase completes - enabling interrupt-driven firmware flow. Mode selection is done via Configure STS command (00h), and the setting persists across power cycles. The open-drain output requires an external pull-up resistor.

M58LW064D110N6 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: 56-TFSOP (0.724", 18.40mm Width)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH - NOR

Memory Size:: 64Mbit

Memory Organization:: 8M x 8, 4M x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: -

Access Time:: 110 ns

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 56-TSOP

M58LW064D110N6 FAQ

1.How can I place an order for M58LW064D110N6 through Aetrix?

Please submit a Request for Quotation (RFQ) for M58LW064D110N6 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for M58LW064D110N6 reliable?

The price and inventory of M58LW064D110N6 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M58LW064D110N6 is usually 5 days.

3.What payment methods are accepted for M58LW064D110N6?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M58LW064D110N6 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for M58LW064D110N6?

M58LW064D110N6 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your M58LW064D110N6 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for M58LW064D110N6?

For technical support, including M58LW064D110N6 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M58LW064D110N6 requirements.

6.How does Aetrix verify that M58LW064D110N6 is sourced from the original manufacturer or authorized distributors?

All M58LW064D110N6 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that M58LW064D110N6 meets industry standards.

7.What is the process for return or replacement of M58LW064D110N6?

All M58LW064D110N6 units undergo pre-shipment inspection (PSI). If there is an issue with M58LW064D110N6, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The M58LW064D110N6 part is unused and in its original packaging.

Return procedure for M58LW064D110N6:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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