My Inquiry
My Account
STMicroelectronics M95512-WMN6TP
- Part No.:
- M95512-WMN6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
M95512-WMN6TP.pdf
- Description:
- IC EEPROM 512KBIT SPI 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,103
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
M95512-WMN6TP from STMicroelectronics is a 512-Kbit (64-Kbyte) serial SPI EEPROM organized as 65536 × 8 bits, operating from 2.5 V to 5.5 V over −40 °C to +85 °C. It features 128-byte page write capability with ≤5 ms write time, hardware- and software-based write protection (quarter/half/whole array), and an additional lockable Identification page for secure parameter storage. Used in industrial control modules for firmware revision tracking and calibration data retention.
For engineers reviewing the M95512-WMN6TP datasheet, M95512-WMN6TP pinout, M95512-WMN6TP application, or M95512-WMN6TP equivalent, key selection criteria include supply voltage range compatibility (2.5–5.5 V), SPI mode support (CPOL/CPHA = 0/0 or 1/1), 4M-cycle endurance, 200-year data retention, and ECOPACK2-compliant TSSOP8 packaging with verified pin mapping.
Technical Context
The device implements a standard SPI interface with dedicated HOLD and W signals for real-time communication pause and hardware-level memory protection. Its internal architecture includes a status register with non-volatile BP1/BP0 bits controlling block-protect granularity and an SRWD bit enabling hardware-locked configuration when W is low.
It supports two SPI modes (CPOL=0/CPHA=0 and CPOL=1/CPHA=1), latching input on rising C edge and output on falling C edge. The Identification page (128 bytes) is exclusive to M95512-DF variants - M95512-WMN6TP does not implement RDID/WRID/LID instructions per DS4192 Rev 24.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 512 Kbit (64 Kbyte), organized as 65536 × 8 bits - directly addressable via 16-bit SPI address field |
| Supply voltage | 2.5 V to 5.5 V - compatible with 3.3 V and 5 V logic systems without level shifting |
| Write time | ≤5 ms per byte or per 128-byte page - enables fast field updates without system timeout constraints |
| Endurance | 4 million write cycles - supports frequent recalibration or logging in industrial HMI and sensor nodes |
| Data retention | 200 years at +25 °C - ensures long-term reliability in unattended infrastructure equipment |
| Operating temp | −40 °C to +85 °C - qualified for extended temperature operation in automotive body control and factory automation |
| SPI clock max | 16 MHz - allows high-throughput configuration loading in boot-time-critical applications |
Pinout & Package
Package: TSSOP8 (169 mil width), ECOPACK2-compliant, surface-mount, 8-pin thin shrink small outline package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S | Chip select | Active-low enable signal; falling edge required after power-up before first instruction |
| C | Serial clock | Input timing reference; data latched on rising edge, output shifted on falling edge |
| D | Serial data input | MSB-first input for instructions, addresses, and write data; sampled on rising C edge |
| Q | Serial data output | MSB-first output for read data and status register; driven on falling C edge |
| W | Write protect | Hardware control for Status register lock; low + SRWD=1 disables WRSR permanently |
| HOLD | Hold | Pauses ongoing SPI transfer without deselecting device; requires S low to activate |
| VCC | Supply voltage | 2.5–5.5 V power rail; decoupling capacitor (10–100 nF) required near pins |
| VSS | Ground | Reference for all I/O and internal circuitry; must be low-impedance return path |
Key Features
| Feature | Design Value |
|---|---|
| Page write architecture | 128-byte pages enable efficient bulk writes while minimizing bus occupancy vs. byte-by-byte |
| Multi-level write protection | Software-configurable (BP1/BP0) + hardware-enforced (W + SRWD) prevents accidental firmware corruption |
| Power-on reset (POR) | Internal POR circuit blocks instruction execution until VCC stabilizes above threshold, eliminating spurious writes |
| Enhanced ESD robustness | ECOPACK2 packaging meets >4 kV HBM ESD rating - improves board-level reliability in handling and assembly |
| Low-power standby mode | ICC1 < 1 µA when deselected and idle - suitable for battery-backed IoT edge nodes |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Storing calibrated sensor offsets, I/O mapping tables, and firmware version stamps across power cycles in programmable logic controllers. IC Role / Device Role / Timing Role: Non-volatile configuration register - retains critical setup data during brownouts and maintenance shutdowns. Use Value: Eliminates need for external backup batteries or supercapacitors; 200-year retention ensures lifetime data integrity in fixed-installation equipment. |
Use Scenario: Saving seat position presets, mirror angle settings, and lighting profiles in vehicle body control units. IC Role / Device Role / Timing Role: SPI-accessible parameter vault - updated only during user-initiated save events, not during runtime operation. Use Value: Hardware write protection (W + SRWD) prevents CAN bus noise or firmware glitches from corrupting user preferences. |
| Medical Diagnostic Equipment Calibration | Smart Energy Meter Firmware Metadata |
|
Use Scenario: Recording factory-calibrated ADC gain/offset coefficients and sensor linearity corrections in portable ultrasound and ECG devices. IC Role / Device Role / Timing Role: Secure calibration repository - accessed once at startup, then locked against modification. Use Value: 4 million write cycles support full recalibration during service intervals over 10+ years of clinical use. |
Use Scenario: Storing firmware checksums, upgrade timestamps, and utility-specific tariff tables in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Tamper-resistant metadata store - write-protected during normal meter operation using BP1/BP0 bits. Use Value: Quarter-array protection isolates tariff data from firmware update routines, meeting ANSI 12.22 security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF512C-SSH-T | 512 Kbit SPI flash with sector erase; no built-in identification page or hardware W pin | Lacks hardware write protect and status register lock; requires software-managed protection | Select if firmware update flexibility (sector erase) outweighs need for guaranteed calibration immutability |
| BR24T512FJ-WE2 | 512 Kbit I²C EEPROM; 1.7–5.5 V supply; no HOLD pin; slower 1 MHz max clock | Uses I²C instead of SPI; incompatible bus protocol and timing; no hardware HOLD function | Choose only when existing design uses I²C infrastructure and SPI is unavailable |
Compared with AT25DF512C-SSH-T and BR24T512FJ-WE2, M95512-WMN6TP uniquely combines SPI speed (16 MHz), hardware-level write lock (W + SRWD), and deterministic 5 ms write latency - making it optimal for safety-critical calibration storage where bus protocol, protection granularity, and timing predictability are non-negotiable.
Availability
M95512-WMN6TP is available at Aetrix Electronics and suitable for industrial PLCs, automotive BCMs, medical diagnostic calibration, and smart energy metering requiring stable component supply, long-lifecycle assurance, and ECOPACK2 environmental compliance.
Supply support for M95512-WMN6TP 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, Switzerland, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
M95512-WMN6TP belongs to ST's serial EEPROM product line, engineered specifically for robust, low-power, SPI-based non-volatile storage in harsh environments where data integrity, long-term retention, and hardware-enforced protection are mandatory.
FAQ
Is M95512-WMN6TP pin-compatible with other M95512 variants like M95512-R or M95512-DF?
Yes - all M95512 variants share identical pinout and footprint across SO8N, TSSOP8, UFDFPN8, and WLCSP8 packages. However, M95512-WMN6TP operates from 2.5–5.5 V (not 1.7–5.5 V), lacks the Identification page, and does not support RDID/WRID/LID instructions present only in M95512-DF.
Does M95512-WMN6TP support quad SPI or dual SPI modes?
No - M95512-WMN6TP supports only standard single-data-line SPI (C, D, Q, S, W, HOLD). It does not implement dual-output (DIO) or quad-output (QIO) protocols; its interface is strictly single-bit serial input/output per clock cycle as defined in DS4192 Rev 24.
What happens if the HOLD pin is asserted during a Write cycle?
HOLD has no effect during active internal write operations (tW). The device continues programming autonomously. HOLD only pauses ongoing SPI command sequences - it cannot interrupt or abort a self-timed write cycle already initiated by a WRITE or WRSR instruction.
Can the Identification page be enabled on M95512-WMN6TP via firmware or configuration?
No - the Identification page is a physical memory block implemented only in M95512-DF die variants. M95512-WMN6TP contains only the main 64-Kbyte array and has no hardware support for RDID, WRID, or LID instructions; attempting them results in undefined behavior or ignored commands.
M95512-WMN6TP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 16 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
M95512-WMN6TP FAQ
1.How can I place an order for M95512-WMN6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M95512-WMN6TP 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 M95512-WMN6TP reliable?
The price and inventory of M95512-WMN6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95512-WMN6TP is usually 5 days.
3.What payment methods are accepted for M95512-WMN6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95512-WMN6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M95512-WMN6TP?
M95512-WMN6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M95512-WMN6TP 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 M95512-WMN6TP?
For technical support, including M95512-WMN6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95512-WMN6TP requirements.
6.How does Aetrix verify that M95512-WMN6TP is sourced from the original manufacturer or authorized distributors?
All M95512-WMN6TP 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 M95512-WMN6TP meets industry standards.
7.What is the process for return or replacement of M95512-WMN6TP?
All M95512-WMN6TP units undergo pre-shipment inspection (PSI). If there is an issue with M95512-WMN6TP, 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 M95512-WMN6TP part is unused and in its original packaging.
Return procedure for M95512-WMN6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M95512-WMN6TP Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
