STMicroelectronics

M95128-RDW6TP

A: The M95128-RDW6TP is engineered for high‑reliability, long‑term data storage. The table below outlines its key reliability specifications: Reliability Parameter Specification Write Endurance 4,000,000 (4 million) write/erase cycles (minimum) Data Retention 200 years (minimum) Write Cycle Time 5 ms (max, self‑timed) Operating Temperature –40°C to +85°C (industrial grade) The device also incorporates built‑in ECC (Error Correction Code) and enhanced ESD protection, which contribute to its robust reliability. These features make the device suitable for applications that require frequent data updates (such as data logging or storing frequently changing configuration parameters) while also guaranteeing long‑term data integrity over decades of operation.

A: The M95128-RDW6TP uses a standard 4‑wire SPI (Serial Peripheral Interface) bus for communication, significantly reducing the number of I/O pins required for memory expansion. The interface consists of the following pins: S (Chip Select): Enables the device when driven low. C (Serial Clock): Provides the clock signal for data transfer. D (Serial Data Input): Transmits data from the host to the device. Q (Serial Data Output): Transmits data from the device to the host. In addition to the standard SPI signals, the device features: HOLD (Hold pin): Allows the host to interrupt and later resume a serial communication sequence without resetting the ongoing instruction. This is particularly useful in multi‑device SPI bus systems where the bus may need to be temporarily shared for higher‑priority tasks. W (Write Protect): Provides hardware write protection. When this pin is tied to GND, all write operations to the memory array (including the status register) are inhibited, offering a hardware method to protect critical data from accidental modification. The SPI interface is compatible with both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), ensuring seamless integration with the vast majority of microcontrollers and SoCs. 4. What are the write endurance and data retention specifications? A: The M95128-RDW6TP is engineered for high‑reliability, long‑term data storage. The table below outlines its key reliability specifications: Reliability Parameter Specification Write Endurance 4,000,000 (4 million) write/erase cycles (minimum) Data Retention 200 years (minimum) Write Cycle Time 5 ms (max, self‑timed) Operating Temperature –40°C to +85°C (industrial grade) The device also incorporates built‑in ECC (Error Correction Code) and enhanced ESD protection, which contribute to its robust reliability. These features make the device suitable for applications that require frequent data updates (such as data logging or storing frequently changing configuration parameters) while also guaranteeing long‑term data integrity over decades of operation. 5. What applications is the M95128-RDW6TP intended for, and what is its current lifecycle status? A: Thanks to its 128Kbit capacity, high‑speed 20 MHz SPI interface, wide operating voltage range (1.8V to 5.5V), industrial temperature rating (–40°C to +85°C), and compact TSSOP‑8 package, the M95128-RDW6TP is well‑suited for a broad range of applications. Typical use cases include: Industrial automation and control systems – Storing configuration parameters, calibration data, and operational logs in PLCs, HMIs, sensors, and measurement equipment Consumer electronics – Storing user settings, device preferences, and calibration constants in portable devices, smart appliances, and wearables Medical devices – Securely storing critical device identification, calibration information, and usage logs in diagnostic equipment and patient monitors Smart meters and Internet of Things (IoT) devices – Handling data logging, energy measurement data, and configuration updates in electricity, water, and gas meters, as well as IoT sensor nodes Communication and networking equipment – Storing MAC addresses, board‑specific configuration data, and system parameters in routers, switches, and telecommunication hardware Automotive electronics – For engine control units (ECUs), body control modules, and infotainment systems where reliable non‑volatile memory is essential ⚠️ Important Lifecycle Information: The M95128-RDW6TP is currently Active and in mass production. Multiple distributor sources, including Lisleapex, Arrow, and the ST eStore, list the part status as Active or “在产” (In Production), confirming that STMicroelectronics continues to manufacture this device and that it is readily available for both new designs and ongoing production. The device is available in Tape & Reel (T&R) packaging, with standard reel quantities of 4,000 pieces per reel, and factory lead times are typically 8 to 9 weeks. The device is also RoHS compliant and ECOPACK2® certified, meeting modern environmental and safety standards. For new projects, the M95128-RDW6TP remains a suitable, active choice. If you require a detailed TSSOP‑8 pinout diagram, specific SPI timing waveforms for read/write operations (including the identification page locking sequence), or a comparison of the M95128-RDW6TP with alternative 128Kbit SPI EEPROM devices (such as the M95128‑W or M95128‑DF variants), please feel free to ask.

A: The M95128-RDW6TP offers a versatile feature set optimized for low-power and wide‑voltage operation. The table below summarizes its core specifications, drawn directly from manufacturer data: Specification Value Memory Capacity 128 Kbit (16 Kbyte) Memory Organization 16K × 8 bits Memory Interface SPI (Serial Peripheral Interface) Clock Frequency (fSCLK) 20 MHz (max) Write Cycle Time (tW) 5 ms (max, self‑timed) Supply Voltage (VCC) 1.8 V to 5.5 V Write Endurance 4,000,000 (4 million) cycles Data Retention 200 years Operating Temperature –40°C to +85°C (industrial grade) Package Type 8‑lead TSSOP (3.0 × 4.4 mm) RoHS Status RoHS compliant, ECOPACK2® Additional features include: 64‑byte Page Mode (page write mode) Additional write‑lockable identification page Hardware write protection for quarter array, half array, or the whole memory Self‑timed write cycle – No external timing control required Built‑in ESD protection and ECC (Error Correction Code) Enhanced data retention and high endurance The device is fully compatible with the SPI bus serial interface and supports positive clock SPI modes.

A: The M95128-RDW6TP is a 128-Kbit (128-kilobit) serial Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by STMicroelectronics. It is organized as 16,384 words of 8 bits each (16K x 8), providing 16 Kbytes of non-volatile storage. The device is accessed via a high-speed Serial Peripheral Interface (SPI) bus and is housed in an industry-standard 8-lead TSSOP (Thin Shrink Small Outline Package) measuring 3.0 × 4.4 mm. It is supplied in Tape & Reel (T&R) packaging for automated high-volume assembly.