M95M01-DWDW3TP/K

Introduction: The M95M01-DWDW3TP/K is STMicroelectronics’ 1-Mbit I2C serial EEPROM (M95M01 family) in an 8-pin package. It provides non-volatile data storage for microcontrollers via a two‑wire I2C bus.
Key features
- Memory: 1 Mbit total (128 KBytes) of non-volatile storage.
- Interface: I2C (two-wire) with standard and fast modes (up to 400 kHz).
- Access: supports random reads and sequential reads; writes are performed as page writes.
- Page size: page length varies by exact revision (commonly 16–32 bytes); single write may span multiple pages.
- Power and durability: operates from a single supply (typ. 1.8–5.5 V); low-power standby/power-down modes; typical endurance ≈ 1 million write cycles; data retention on the order of decades.
- Package and temperature: available in standard 8-pin packages; the DWDW3TP/K suffix indicates specific package, temperature, and RoHS/compliance options.
- Applications: firmware/configuration/calibration data storage in MCUs, data logging, parameter storage, etc.
For exact electrical specs, timing diagrams, and addressing, consult the M95M01 datasheet and the device’s package documentation.

Key features of M95M01-DWDW3TP/K (1-Mbit SPI serial EEPROM):
- 1 Mbit memory (128 KB) organized for SPI access
- SPI-compatible serial interface (CS/SCK/SI/SO)
- Random read/write with page write capability
- Data protection: hardware write-protect (WP) and software block-protect (BP) bits
- HOLD pin to pause/resume serial communication
- Low-power modes: Standby and Deep Power-Down
- Single-supply operation: 2.7 to 3.6 V
- Industrial temperature range: -40°C to +125°C
- 8-pin package (e.g., SO8/TSSOP8), RoHS-compliant
Note: exact page size and timing figures are datasheet dependent; consult the datasheet for precise electrical characteristics.

8-pin SOIC (small‑outline) package. The M95M01-DWDW3TP/K is in an 8‑lead SO8 package.

- Pin count: 8 pins (8-pin SO package)
- Function: 1-Mbit I2C serial EEPROM (ST M95M01) used for non-volatile data storage. Interface: I2C (SCL, SDA); includes address pins A0–A2 and a Write Protect (WP) pin, plus Vcc and GND.

- Manufacturer: STMicroelectronics.
- What kind of company: A multinational electronics and semiconductor manufacturer (global supplier of integrated circuits and discrete semiconductors), headquartered in Geneva, Switzerland.

- 1-Mbit I2C serial EEPROM
- Non-volatile storage for calibration data, configuration data, serial numbers, and security keys
- Small data logging
- Automotive ECUs and instrument clusters
- Industrial controls
- Consumer electronics (TVs, cameras, set-top boxes)
- Smart meters and networked peripherals

Equivalent 1-Mbit I2C serial EEPROMs to M95M01-DWDW3TP/K:
- Renesas M24M01
- NXP CAT24C1024
Note: Check exact package (pinout), voltage (2.7–3.6V), WP, and timing to ensure full compatibility. Other vendors may offer similar 1-Mbit I2C eEPROMs; verify cross-reference with your supplier.