My Inquiry
My Account
STMicroelectronics M95M01-RDW6TP
- Part No.:
- M95M01-RDW6TP
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
M95M01-RDW6TP.pdf
- Description:
- IC EEPROM 1MBIT SPI 16MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:15,647
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
M95M01-RDW6TP from STMicroelectronics is a 1 Mbit (131,072 × 8) serial SPI EEPROM with 1.8 V–5.5 V supply range, 16 MHz max clock frequency, and 5 ms byte/page write time. It features an identification page (256 bytes), hardware/software write protection, and operates across –40 °C to +85 °C - used in industrial control modules for firmware parameter storage and calibration data retention.
For engineers reviewing the M95M01-RDW6TP datasheet, M95M01-RDW6TP pinout, M95M01-RDW6TP application, or M95M01-RDW6TP equivalent, key selection criteria include SPI mode compatibility (CPOL/CPHA = 0/0 or 1/1), BP1/BP0-configurable memory protection granularity, hold functionality for bus arbitration, and ECOPACK2-compliant TSSOP8 packaging.
Technical Context
The device implements a standard SPI interface with dedicated HOLD and W pins for real-time bus pause and hardware-based status register lock. Its internal architecture includes ECC-enabled page latches, a high-voltage generator for EEPROM programming, and a nonvolatile status register with SRWD, BP1, and BP0 bits controlling write-protect scope.
It supports two SPI modes (CPOL=0/CPHA=0 and CPOL=1/CPHA=1), latching input on rising C edge and outputting on falling C edge. The identification page is accessible only via RDID/WRID instructions and can be permanently locked in read-only mode using LID instruction - a feature exclusive to M95M01-DF variants but not present in M95M01-RDW6TP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 1 Mbit (131,072 × 8 bits); sufficient for storing boot configuration, device ID, and sensor calibration tables in resource-constrained systems. |
| Supply voltage | 1.8 V to 5.5 V; enables direct interfacing with 1.8 V, 3.3 V, and 5 V microcontrollers without level-shifting. |
| Max clock frequency | 16 MHz; supports high-throughput parameter updates in real-time diagnostics and logging applications. |
| Write cycle time | ≤5 ms per byte or page; allows rapid field-updatable settings without blocking host MCU execution for extended periods. |
| Data retention | 200 years at 25 °C; ensures long-term reliability of stored calibration coefficients and security keys over product lifetime. |
| Endurance | 4 million write cycles; supports frequent runtime parameter adjustment in test equipment and programmable logic controllers. |
| Operating temperature | –40 °C to +85 °C; qualified for use in automotive body control modules and industrial motor drives. |
Pinout & Package
Package: TSSOP8 (169 mil width), ECOPACK2-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| S | Chip select | Active-low enable signal; must transition low before any SPI transaction; edge-sensitive power-up behavior prevents spurious writes. |
| C | Serial clock | Timing reference for SPI I/O; supports CPOL/CPHA = (0,0) or (1,1); data latched on rising edge, output valid on falling edge. |
| D | Serial data input | Carries instruction opcodes, addresses, and write data; MSB-first protocol requires precise clock alignment per instruction format. |
| Q | Serial data output | Provides read data and status register contents; tri-states when S is high or HOLD is asserted. |
| W | Write protect | Hardware lock for SRWD/BP bits; when low and SRWD=1, disables WRSR instruction and freezes protection configuration. |
| HOLD | Bus hold | Pauses ongoing SPI transfer without deselecting device; Q goes high-Z, D/C ignored; resumes from same state upon deassertion. |
| VCC | Power supply | 1.8–5.5 V operation; internal POR circuit enforces safe initialization; decoupling capacitor (10–100 nF) required near pins. |
| VSS | Ground | Reference for all digital and analog functions; must be low-impedance connection to minimize noise coupling into EEPROM array. |
Key Features
| Feature | Design Value |
|---|---|
| Page write capability | 256-byte pages enable bulk parameter updates (e.g., full sensor calibration set) in single write cycle, reducing host MCU overhead. |
| Configurable memory protection | BP1/BP0 bits allow software-selectable protection of upper quarter (18000h–1FFFFh), upper half (10000h–1FFFFh), or full array (00000h–1FFFFh). |
| HOLD functionality | Enables multi-master SPI arbitration by pausing transfers mid-sequence without losing address/data context or requiring re-initialization. |
| Enhanced ESD protection | ≥4 kV HBM rating ensures robustness against handling and board-level electrostatic discharge in manufacturing and field service environments. |
| ECOPACK2 packaging | TSSOP8 footprint meets RoHS, REACH, and halogen-free requirements; compatible with standard reflow profiles and automated optical inspection. |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing I/O mapping tables, PID tuning parameters, and fault log history in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during boot and runtime via SPI; no timing-critical latency constraints. Use Value: Enables field-upgradable control logic without firmware reflashing; 4M endurance supports daily recalibration in maintenance workflows. |
Use Scenario: Retaining seat position presets, mirror angle offsets, and lighting profiles across ignition cycles in vehicle body control units. IC Role / Device Role / Timing Role: Parameter retention memory interfaced to 3.3 V CAN microcontroller; accessed during startup and user-adjustment events. Use Value: Maintains user preferences through battery disconnects; 200-year data retention eliminates need for backup capacitors or supercaps. |
| Medical Device Calibration Data | Smart Energy Meter Firmware Settings |
|
Use Scenario: Holding factory-calibrated ADC gain/offset coefficients and sensor linearization tables in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage accessed once per power-on; write-protection prevents accidental corruption during field servicing. Use Value: Ensures regulatory compliance (IEC 62304) via immutable calibration data; hardware W pin blocks unauthorized status register modification. |
Use Scenario: Storing tariff schedules, metering constants, and communication credentials in ANSI C12.22-compliant utility meters. IC Role / Device Role / Timing Role: Secure parameter vault accessed via isolated SPI interface; write operations occur infrequently during firmware updates or utility provisioning. Use Value: Supports AES-encrypted credential storage with BP1/BP0 locking critical sectors; 1.8 V operation extends battery life in AMI endpoint designs. |
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 density, 3.3 V only (2.7–3.6 V), no HOLD pin, lacks identification page | Higher capacity for larger firmware images; unsuitable where hold functionality or dual-voltage operation is required | Select when system uses fixed 3.3 V rail and requires >1 Mbit storage without bus arbitration needs |
| MX25L4006EM1I-12G | 4 Mbit, 3 V supply (2.7–3.6 V), quad SPI support, no hardware W pin, no BP bits | Better throughput via quad I/O; lacks software-configurable block protection and hardware write lock for status register | Choose for high-speed code shadowing where security and fine-grained protection are secondary to bandwidth |
Compared with AT25DF041A-SSH-T and MX25L4006EM1I-12G, M95M01-RDW6TP provides unique value in mixed-voltage systems requiring robust bus arbitration (HOLD), flexible memory protection (BP1/BP0 + W/SRWD), and guaranteed industrial temperature operation - making it optimal for safety-critical embedded control.
Availability
M95M01-RDW6TP is available at Aetrix Electronics and suitable for industrial PLC configuration storage, automotive body control modules, medical device calibration data retention, and smart energy meter firmware settings requiring stable component supply and long-term lifecycle assurance.
Supply support for M95M01-RDW6TP 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, designing and manufacturing microcontrollers, power ICs, sensors, and memory solutions for industrial, automotive, and consumer markets.
M95M01-RDW6TP belongs to ST's serial EEPROM product line, engineered for reliable nonvolatile data storage in space- and power-constrained embedded systems requiring SPI simplicity and industrial-grade robustness.
FAQ
What SPI modes does M95M01-RDW6TP support?
M95M01-RDW6TP supports only two SPI modes: CPOL = 0, CPHA = 0 and CPOL = 1, CPHA = 1. In both, data is latched on the rising edge of C and output changes on the falling edge. It does not support CPOL/CPHA = (0,1) or (1,0), and misconfigured master peripherals will fail to communicate.
How is write protection implemented on M95M01-RDW6TP?
Write protection uses dual-layer control: software-configurable BP1/BP0 bits (set via WRSR) define protected memory regions (none, upper quarter, upper half, or full array), while the hardware W pin - when pulled low with SRWD = 1 - locks the status register itself, preventing further BP bit changes until power cycle.
Does M95M01-RDW6TP include an identification page?
No. The identification page (256 bytes, RDID/WRID/LID instructions) is exclusive to the M95M01-DF variant. M95M01-RDW6TP is the M95M01-R version and lacks this feature - confirmed by datasheet DS5137 Rev 16 Section 1 and Table 3 footnote (1).
What is the maximum clock frequency for reliable operation?
The maximum guaranteed clock frequency is 16 MHz across the full operating temperature range (–40 °C to +85 °C) and supply range (1.8 V to 5.5 V). AC timing parameters including tCH and tCL are specified at this rate in Section 9 of DS5137 Rev 16, and exceeding it risks setup/hold violations and data corruption.
M95M01-RDW6TP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
M95M01-RDW6TP FAQ
1.How can I place an order for M95M01-RDW6TP through Aetrix?
Please submit a Request for Quotation (RFQ) for M95M01-RDW6TP 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-RDW6TP reliable?
The price and inventory of M95M01-RDW6TP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95M01-RDW6TP is usually 5 days.
3.What payment methods are accepted for M95M01-RDW6TP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95M01-RDW6TP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M95M01-RDW6TP?
M95M01-RDW6TP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M95M01-RDW6TP 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-RDW6TP?
For technical support, including M95M01-RDW6TP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95M01-RDW6TP requirements.
6.How does Aetrix verify that M95M01-RDW6TP is sourced from the original manufacturer or authorized distributors?
All M95M01-RDW6TP 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-RDW6TP meets industry standards.
7.What is the process for return or replacement of M95M01-RDW6TP?
All M95M01-RDW6TP units undergo pre-shipment inspection (PSI). If there is an issue with M95M01-RDW6TP, 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-RDW6TP part is unused and in its original packaging.
Return procedure for M95M01-RDW6TP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M95M01-RDW6TP 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…
