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STMicroelectronics M95320-RMC6TG
- Part No.:
- M95320-RMC6TG
- Manufacturer:
- STMicroelectronics
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
M95320-RMC6TG.pdf
- Description:
- IC EEPROM 32KBIT SPI 8UFDFPN
- Quantity:
- Payment:
- Shipping:
Inventory:2,000
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Product details
Overview
M95320-RMC6TG from STMicroelectronics is a 32-Kbit serial SPI bus EEPROM organized as 4096 × 8 bits, operating from 1.8 V to 5.5 V supply and rated for −40 °C to +85 °C. It supports 20 MHz clock speed, 32-byte page writes completing in ≤5 ms, and offers quarter/half/whole array write protection via hardware W pin and status register BP bits. It is used in industrial control modules for storing calibrated sensor offsets and configuration parameters.
For engineers reviewing the M95320-RMC6TG datasheet, M95320-RMC6TG pinout, M95320-RMC6TG application, or M95320-RMC6TG equivalent, key selection considerations include its 1.8 V minimum VCC, ECOPACK2®-compliant TSSOP8 package, SPI mode compatibility (CPOL=0/CPHA=0 and CPOL=1/CPHA=1), and nonvolatile identification page lock capability.
Technical Context
The device implements a standard SPI interface with four active signals (C, D, Q, S) plus HOLD and W control inputs. It uses a synchronous serial protocol where data is latched on C's rising edge (D) and output on C's falling edge (Q), supporting both SPI Mode 0 and Mode 3.
Internally, it features a 4 Kbyte EEPROM array partitioned into 128 pages of 32 bytes each, plus a dedicated 32-byte Identification Page. Write operations are managed through a Status Register (WEL, WIP, BP1/BP0, SRWD bits) enabling flexible hardware- and software-based memory protection schemes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 32 Kbit (4096 × 8), directly addressable via 12-bit SPI address field |
| Supply voltage range | 1.8 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 | 20 MHz - supports high-throughput configuration loading in real-time systems |
| Write cycle time | ≤5 ms per byte or per 32-byte page - ensures fast firmware parameter updates during runtime |
| Data retention | 200 years at 25 °C - guarantees long-term integrity of calibration data across product lifetime |
| Endurance | 4 million write cycles - supports frequent recalibration in test equipment and adaptive control systems |
| Operating temperature | −40 °C to +85 °C - qualified for industrial and automotive under-hood environments |
Pinout & Package
Package: TSSOP8 (DW), 3 mm × 4.4 mm body, 0.5 mm pitch, ECOPACK2®-compliant, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (S) | Chip Select | Active-low enable; places device in Active Power mode when low; high-impedance Q when high |
| 2 (W) | Write Protect | Hardware lock for BP-configured protected memory blocks; must be stable during write instructions |
| 3 (VSS) | Ground | Reference node for all I/O and internal circuitry; requires low-inductance connection to PCB ground plane |
| 4 (D) | Serial Data Input | Input for SPI commands, addresses, and write data; sampled on rising edge of C |
| 5 (Q) | Serial Data Output | Output for read data and status register contents; driven on falling edge of C |
| 6 (C) | Serial Clock | Master-generated timing signal; defines data setup/hold windows and synchronizes all transfers |
| 7 (HOLD) | Hold Control | Pauses ongoing SPI transaction without deselecting device; suspends internal state machine until deasserted |
| 8 (VCC) | Supply Voltage | Power input; requires local 10–100 nF ceramic decoupling capacitor between VCC and VSS |
Key Features
| Feature | Design Value |
|---|---|
| Identification Page | Dedicated 32-byte page for storing immutable system IDs or security keys, lockable to Read-only mode |
| Flexible write protection | Configurable via BP1/BP0 bits to protect 1/4, 1/2, or entire memory array - prevents accidental overwrites |
| HOLD functionality | Enables multi-master SPI arbitration by pausing transactions without bus release or reinitialization overhead |
| ECOPACK2® packaging | TSSOP8 meets strict environmental compliance (RoHS, halogen-free) and thermal performance requirements |
| Enhanced ESD protection | ±4 kV HBM - improves robustness in manufacturing handling and field deployment |
Applications
| Industrial PLC Configuration Storage | Medical Device Calibration Data Retention |
|---|---|
|
Use Scenario: Storing I/O mapping tables, PID tuning parameters, and user-defined logic configurations in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration storage element interfaced to ARM Cortex-M7 MCU via SPI at 10 MHz. Use Value: Enables field-upgradable settings without requiring external programming tools or firmware reflashing. |
Use Scenario: Holding factory-calibrated ADC offset/gain coefficients and patient-specific therapy profiles in portable infusion pumps. IC Role / Device Role / Timing Role: Secure, long-life data vault accessed during power-on initialization and runtime parameter validation. Use Value: Ensures regulatory compliance with 200-year data retention and prevents unauthorized modification of safety-critical values. |
| Automotive Body Control Module (BCM) | Smart Energy Meter Firmware Parameters |
|
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door lock behavior in 12 V automotive BCMs. IC Role / Device Role / Timing Role: Low-voltage EEPROM (1.8 V min) directly powered from LDO-regulated 3.3 V rail; accessed during wake-up sequence. Use Value: Operates reliably across cold-crank (down to 1.8 V) and hot-soak conditions while maintaining data integrity. |
Use Scenario: Storing tariff schedules, metering constants, and communication credentials in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Tamper-resistant configuration store with hardware write protection enabled via W pin tied to secure MCU GPIO. Use Value: Prevents unauthorized firmware parameter changes during field maintenance or utility-side remote updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25320B-MAHL-T (Microchip) | Same 32 Kbit SPI EEPROM, but rated only down to 2.5 V VCC; lacks Identification Page and HOLD pin | Not suitable for 1.8 V systems or designs requiring suspendable SPI transactions | Select only if operating exclusively at ≥2.5 V and HOLD functionality is unused |
| BR24T32FJ-WE2 (ROHM) | 1.7 V–5.5 V operation, same page size and endurance, but uses different status register bit layout and no ID page | Requires firmware adaptation for BP bit interpretation and lacks permanent lock capability for sensitive data | Prefer when cost sensitivity outweighs need for ID page locking and exact ST register compatibility |
Compared with AT25320B-MAHL-T and BR24T32FJ-WE2, M95320-RMC6TG uniquely supports 1.8 V operation, integrated HOLD signaling, and a dedicated lockable Identification Page-making it optimal for resource-constrained, security-aware industrial and medical designs.
Availability
M95320-RMC6TG is available at Aetrix Electronics and suitable for industrial PLCs, medical infusion pumps, automotive body control modules, and smart energy meters requiring stable component supply across extended temperature and voltage ranges.
Supply support for M95320-RMC6TG 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 products for industrial, automotive, and consumer markets.
M95320-RMC6TG belongs to ST's serial EEPROM product line, engineered specifically for robust, low-power, SPI-based configuration and calibration storage in harsh-environment embedded systems.
FAQ
What SPI modes does M95320-RMC6TG support?
M95320-RMC6TG supports two SPI modes: Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). In both, data is sampled on the rising edge of C and output on the falling edge. The difference lies only in idle clock polarity - C remains low in Mode 0 and high in Mode 3 - allowing interoperability with diverse MCU SPI peripherals without protocol translation.
How is write protection implemented on M95320-RMC6TG?
Write protection uses dual-layer control: hardware via the W pin (freezes BP bit-defined protection size), and software via BP0/BP1 bits in the Status Register. BP bits configure protection for 1/4, 1/2, or full memory array. Once set, BP bits can only be cleared after issuing Write Enable and Write Status Register commands - preventing accidental erasure of critical firmware data.
Does M95320-RMC6TG include an Identification Page, and how is it secured?
Yes - M95320-RMC6TG includes a dedicated 32-byte Identification Page accessible only via READ/WRITE ID instructions. Its contents can be permanently locked to Read-only mode using the Lock ID command, which sets the SRWD bit and disables further writes to the ID page. This provides hardware-enforced immutability for device serial numbers or cryptographic keys.
What is the significance of the "MC6TG" suffix in M95320-RMC6TG?
The "MC6TG" suffix denotes the specific variant: M = TSSOP8 package (DW), C6 = ECOPACK2® RoHS-compliant finish, T = tape-and-reel packaging, G = industrial temperature grade (−40 °C to +85 °C). This distinguishes it from SO8N (MN) or UFDFPN8 (MB) variants and confirms compliance with environmental and mechanical specifications in ST DocID5711 Rev 16.
M95320-RMC6TG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 32Kbit
- Memory Organization:
- 4K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 20 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-UFDFPN (2x3)
M95320-RMC6TG FAQ
1.How can I place an order for M95320-RMC6TG through Aetrix?
Please submit a Request for Quotation (RFQ) for M95320-RMC6TG 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 M95320-RMC6TG reliable?
The price and inventory of M95320-RMC6TG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for M95320-RMC6TG is usually 5 days.
3.What payment methods are accepted for M95320-RMC6TG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for M95320-RMC6TG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for M95320-RMC6TG?
M95320-RMC6TG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your M95320-RMC6TG 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 M95320-RMC6TG?
For technical support, including M95320-RMC6TG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your M95320-RMC6TG requirements.
6.How does Aetrix verify that M95320-RMC6TG is sourced from the original manufacturer or authorized distributors?
All M95320-RMC6TG 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 M95320-RMC6TG meets industry standards.
7.What is the process for return or replacement of M95320-RMC6TG?
All M95320-RMC6TG units undergo pre-shipment inspection (PSI). If there is an issue with M95320-RMC6TG, 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 M95320-RMC6TG part is unused and in its original packaging.
Return procedure for M95320-RMC6TG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
M95320-RMC6TG Tags
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