STMicroelectronics M95160-DFMN6TP

Overview

M95160-DFMN6TP from STMicroelectronics is a 16-Kbit serial SPI bus EEPROM organized as 2048 × 8 bits, operating from 1.7 V to 5.5 V supply with 20 MHz clock support. It features 32-byte page write capability (≤5 ms), >4 million write cycles, and 200-year data retention. Used for nonvolatile parameter storage in industrial control modules requiring low-voltage operation and robust reprogrammability.

For engineers reviewing the M95160-DFMN6TP datasheet, M95160-DFMN6TP pinout, M95160-DFMN6TP application, or M95160-DFMN6TP equivalent, key selection criteria include its 1.7 V minimum VCC, Identification Page lockability, quarter/half/whole array write protection, and ECOPACK2® SO8N package compatibility with legacy footprint designs.

Technical Context

The device implements a standard SPI interface with CPOL=0/CPHA=0 and CPOL=1/CPHA=1 mode support, latching input on the rising edge of C and driving output on the falling edge. Its internal architecture includes an address register, page decoder, status register (with BP1/BP0 for block protection), and dedicated Identification Page (32 bytes) accessible only in M95160-D variants.

Write operations are controlled via WREN/WRSR instructions and protected by hardware Write Protect (W) pin and software-configurable BP bits. The HOLD pin enables communication pause without chip deselection, maintaining state during system-level arbitration or interrupt handling in real-time embedded systems.

Key Specifications

Pinout & Package

Package: SO8N (ECOPACK2®), 150 mil width, 8-lead plastic small outline. Pin-1 marked by notch or dot; lead finish is matte tin.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Compared with AT25160B-SSHL-T and BR24G16FJ-3GE2, M95160-DFMN6TP uniquely combines 1.7 V operation, 20 MHz SPI speed, and hardware-lockable Identification Page - making it the sole option for secure, low-voltage, high-speed parameter storage in constrained industrial and medical platforms.

Availability

M95160-DFMN6TP is available at Aetrix Electronics and suitable for industrial PLCs, smart meters, automotive body control modules, and medical diagnostic devices requiring stable component supply across extended product lifecycles.

Supply support for M95160-DFMN6TP 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.

M95160-DFMN6TP belongs to ST's serial EEPROM product line, engineered specifically for reliable, low-voltage, high-endurance nonvolatile storage in safety-critical and long-lifecycle embedded systems.

FAQ

What is the function of the HOLD pin on M95160-DFMN6TP?

The HOLD pin pauses ongoing SPI communication without deselecting the device. When asserted low while Chip Select (S) is active, Serial Data Output (Q) enters high-impedance state and Serial Data Input (D) and Clock (C) are ignored. This allows external masters to temporarily suspend EEPROM access during priority interrupts or bus arbitration, resuming from the exact bit position upon deassertion.

How does the Identification Page differ from standard memory pages?

The Identification Page is a dedicated 32-byte memory region accessible only via READ ID and WRITE ID instructions. Unlike standard pages, it can be permanently locked to Read-only mode using the Lock ID command. Once locked, writes to this page are disabled even if BP bits are cleared, ensuring immutability of stored device identifiers, cryptographic seeds, or calibration certificates.

Can M95160-DFMN6TP operate reliably at 1.7 V during write operations?

Yes - M95160-DFMN6TP is fully specified for Byte Write and Page Write operations at 1.7 V minimum supply, with maximum write time ≤5 ms across the full −40°C to +85°C temperature range. This is validated per ST's DC and AC characteristics tables (Table 16) and enables robust operation in battery-powered or cold-cranking scenarios where supply droop occurs.

What package variant does M95160-DFMN6TP use, and is it footprint-compatible with legacy SO8 designs?

M95160-DFMN6TP uses the SO8N (150 mil width) ECOPACK2® package with standard 1.27 mm pitch and 5.0 mm × 4.0 mm body dimensions. It is mechanically and electrically compatible with JEDEC MS-012AC footprints, enabling drop-in replacement for earlier M95160-WMN6TP and industry-standard 8-pin SOIC EEPROMs without PCB redesign.