My Inquiry
My Account
STMicroelectronics M95M01-DFCS6TP/K
.jpg)
- Part No.:
- M95M01-DFCS6TP/K
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-UFBGA, WLCSP
- Datasheet:
-
M95M01-DFCS6TP/K.pdf
- Description:
- IC EEPROM 1MBIT SPI 16MHZ 8WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:6,954
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
M95M01-DFCS6TP/K from STMicroelectronics is a 1 Mbit (131,072 × 8) serial SPI EEPROM with an additional 256-byte identification page, operating from 1.7 V to 5.5 V across –40 °C to +85 °C. It supports up to 16 MHz clock frequency, delivers ≤5 ms byte/page write time, and features hardware/software write protection for quarter/half/whole memory array. Used in industrial control modules for secure parameter storage and firmware revision tracking.
For engineers reviewing the M95M01-DFCS6TP/K datasheet, M95M01-DFCS6TP/K pinout, M95M01-DFCS6TP/K application, or M95M01-DFCS6TP/K equivalent, key selection criteria include supply voltage range compatibility (1.7–5.5 V), identification page lock capability, SPI mode support (CPOL/CPHA = 0/0 or 1/1), and ECOPACK2-compliant TSSOP8 packaging for space-constrained PCBs.
Technical Context
The M95M01-DF implements a standard SPI interface with dedicated HOLD and WRITE PROTECT inputs enabling real-time communication suspension and configurable memory locking. Its status register includes non-volatile BP1/BP0 bits controlling software-based block protection and SRWD bit enabling hardware-locked status register writes when W is low.
It supports two SPI modes (CPOL=0/CPHA=0 and CPOL=1/CPHA=1), with data latched on C rising edge and output shifted on C falling edge. The device integrates power-on reset (POR), automatic WEL reset after write completion, and high-impedance Q during HOLD or deselection - ensuring robust bus arbitration in multi-device systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Mbit (131,072 × 8) + 256-byte identification page for secure parameter storage |
| Supply voltage | 1.7 V to 5.5 V - enables direct interfacing with 1.8 V, 3.3 V, and 5 V microcontrollers without level shifters |
| Max clock frequency | 16 MHz - supports high-throughput configuration loading in boot-time-critical applications |
| Write cycle time | ≤5 ms per byte or page - reduces firmware update latency in field-programmable devices |
| Data retention | 200 years - ensures long-term reliability of calibration data in unattended equipment |
| Endurance | 4 million write cycles - sustains frequent logging or counter updates in industrial monitoring nodes |
| Operating temperature | –40 °C to +85 °C - qualified for deployment in outdoor metering and factory-floor automation |
Pinout & Package
Package: TSSOP8 (169 mil width), ECOPACK2-compliant, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S | Chip select | Active-low enable; falling edge required after power-up before first instruction; controls active/standby power mode |
| C | Serial clock | Timing reference for SPI; data latched on rising edge, output shifted on falling edge; supports CPOL/CPHA = 0/0 or 1/1 |
| D | Serial data input | Carries instructions, addresses, and write data; MSB-first; sampled on rising edge of C |
| Q | Serial data output | Provides read data and status register contents; high-impedance when S high or HOLD active |
| W | Write protect | Hardware lock for SRWD/BP bits; when low and SRWD=1, disables WRSR instruction permanently |
| HOLD | Communication hold | Pauses ongoing SPI transfer without deselecting device; Q goes high-Z, D/C become don't-care |
| VCC | Supply voltage | 1.7–5.5 V operation; requires local 10–100 nF decoupling capacitor near pins |
| VSS | Ground | Reference for all I/O and internal logic; must be low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Identification page | 256-byte dedicated area with permanent lock (LID instruction) for storing immutable calibration or security keys |
| Flexible write protection | Configurable via BP1/BP0 bits (status register) + W pin to protect quarter/half/entire array or lock status register itself |
| Robust SPI interface | Supports both SPI modes (0,0) and (1,1); built-in protocol checks prevent invalid instruction execution |
| Power management | Automatic POR reset; standby current ICC1 < 5 µA; active current ICC < 5 mA at 16 MHz - suitable for battery-backed systems |
| Reliability assurance | ECOPACK2 package; >4M write cycles; 200-year data retention; enhanced ESD protection (>4 kV HBM) |
Applications
| Industrial PLC Configuration Storage | Smart Meter Firmware Revision Tracking |
|---|---|
|
Use Scenario: Storing calibrated sensor offsets, I/O mapping tables, and user-defined logic parameters in programmable logic controllers. IC Role / Device Role / Timing Role: Non-volatile configuration register accessed at startup and during runtime reconfiguration via SPI. Use Value: Enables field-upgradable logic without firmware reflashing; identification page stores factory calibration checksums verifiable at boot. |
Use Scenario: Recording firmware version, patch ID, and cryptographic key fingerprints in utility-grade electricity meters. IC Role / Device Role / Timing Role: Secure boot-time parameter vault with locked identification page preventing tampering of critical metadata. Use Value: Supports regulatory audit trails by preserving immutable firmware identity; write protection prevents accidental overwrites during OTA updates. |
| Medical Device Calibration Data | Automotive Body Control Module Settings |
|
Use Scenario: Retaining sensor gain/offset coefficients, patient-specific thresholds, and diagnostic history logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: High-reliability data logger with guaranteed 200-year retention and 4M-cycle endurance for repeated recalibration events. Use Value: Eliminates need for external backup batteries; identification page stores FDA-required device serialization and calibration timestamps. |
Use Scenario: Storing seat position presets, mirror angle profiles, and lighting configuration preferences in automotive BCMs. IC Role / Device Role / Timing Role: User preference storage with hardware-level write protection to prevent corruption during vehicle power cycling. Use Value: Ensures settings persist across 15+ year vehicle lifetimes; TSSOP8 footprint fits tight under-dash space constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF041A-SSH-T | 4 Mbit capacity; no identification page; max clock 85 MHz; 2.7–3.6 V only | Lacks dedicated ID page lock; higher speed but narrower voltage range limits MCU compatibility | Select when higher bandwidth and larger storage are needed, and system operates strictly at 3.3 V |
| MX25L4006EM2I-12G | 4 Mbit NOR Flash; no byte-write capability; requires sector erase before write; 2.7–3.6 V | Flash architecture introduces erase latency and wear leveling complexity; unsuitable for frequent small writes | Choose only for code storage where execute-in-place (XIP) is required; not a functional substitute for EEPROM-style random writes |
Compared with AT25DF041A-SSH-T and MX25L4006EM2I-12G, the M95M01-DFCS6TP/K uniquely combines 1.7–5.5 V operation, dedicated lockable ID page, and true byte-write EEPROM behavior - making it optimal for mixed-voltage embedded systems requiring secure, field-updatable configuration storage.
Availability
M95M01-DFCS6TP/K is available at Aetrix Electronics and suitable for industrial PLCs, smart meters, medical diagnostics, and automotive body control modules requiring stable component supply, long-life data retention, and secure parameter storage.
Supply support for M95M01-DFCS6TP/K 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.
The M95M01 series belongs to ST's serial EEPROM product line, engineered specifically for robust, low-power, secure non-volatile storage in resource-constrained embedded systems with demanding environmental and longevity requirements.
FAQ
What is the function of the HOLD pin on the M95M01-DFCS6TP/K?
The HOLD pin pauses ongoing SPI communication without deselecting the device or resetting internal state. When driven low while chip select (S) is active, Q enters high-impedance, and D/C are ignored - allowing the host MCU to service higher-priority interrupts and resume exactly where it left off. This avoids retransmission overhead and maintains transaction integrity in real-time systems.
How does the identification page differ from main memory in the M95M01-DFCS6TP/K?
The 256-byte identification page is architecturally separate from main memory and supports unique instructions: RDID/WRID for access and LID to permanently lock it as read-only. Once locked, its contents cannot be altered even if BP bits or W pin are modified - providing hardware-enforced immutability ideal for storing cryptographic keys or calibration signatures.
Can the M95M01-DFCS6TP/K operate reliably at 1.7 V supply?
Yes - the M95M01-DF variant is explicitly rated for 1.7 V minimum supply, unlike the M95M01-R (1.8 V min). At 1.7 V, it maintains full functionality including 16 MHz clock operation, 5 ms write cycles, and –40 °C to +85 °C temperature range compliance, enabling direct integration with ultra-low-power MCUs like STM32L4+ or EFM32 Giant Gecko.
What happens if the W pin is left floating during operation?
The W pin must be actively driven high or low; floating violates the absolute maximum ratings and may cause unpredictable status register behavior. If W floats near the logic threshold, SRWD protection can engage erratically, blocking WRSR commands. ST recommends tying W to VCC (for unlocked status register) or GND (for hardware lock) via a pull-up/down resistor - never leaving it unconnected.
M95M01-DFCS6TP/K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 16 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WLCSP
M95M01-DFCS6TP/K FAQ
1.How can I place an order for M95M01-DFCS6TP/K through Aetrix?
Please submit a Request for Quotation (RFQ) for M95M01-DFCS6TP/K 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 M95M01-DFCS6TP/K reliable?
The price and inventory of M95M01-DFCS6TP/K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95M01-DFCS6TP/K is usually 5 days.
3.What payment methods are accepted for M95M01-DFCS6TP/K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95M01-DFCS6TP/K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M95M01-DFCS6TP/K?
M95M01-DFCS6TP/K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M95M01-DFCS6TP/K 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 M95M01-DFCS6TP/K?
For technical support, including M95M01-DFCS6TP/K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95M01-DFCS6TP/K requirements.
6.How does Aetrix verify that M95M01-DFCS6TP/K is sourced from the original manufacturer or authorized distributors?
All M95M01-DFCS6TP/K 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 M95M01-DFCS6TP/K meets industry standards.
7.What is the process for return or replacement of M95M01-DFCS6TP/K?
All M95M01-DFCS6TP/K units undergo pre-shipment inspection (PSI). If there is an issue with M95M01-DFCS6TP/K, 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 M95M01-DFCS6TP/K part is unused and in its original packaging.
Return procedure for M95M01-DFCS6TP/K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M95M01-DFCS6TP/K 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 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…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
