4256BWP Datasheet PDF – 256-Kbit serial I2C bus EEPROM

This post describes for the EEPROM.

The part number is 4256BWP, M24256-BW.

The function of this semiconductor is 256-Kbit serial I2C bus EEPROM.

The package is SOP 8 Pin Type

The manufacturer of this part is STMicroelectronics.

See the preview image and the Datasheet PDF file for more information.

4256BWP pinout datasheet


Serial EEPROMs are commonly used in a wide range of applications, including embedded systems, consumer electronics, automotive electronics, and industrial equipment. They provide non-volatile storage for settings, calibration data, user preferences, and other important information in electronic devices.

The 4256BWP is a 256-Kbit I2C-compatible EEPROM (Electrically Erasable PROgrammable
Memory) organized as 32 K × 8 bits. The M24256-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24256-BR and M24256-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M24256-BF and M24256-DF can operate with a supply voltage from 1.7 V to 5.5 V. All these devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of –40 °C / +85 °C.

The M24256-D offers an additional page, named the Identification Page (64 bytes). The Identification Page can be used to store sensitive application parameters which can be (later) permanently locked in Read-only mode.


42568WP Marking

42568WP Marking


• Compatible with all I2C bus modes: – 1 MHz – 400 kHz – 100 kHz

• Memory array: – 256 Kbit (32 Kbytes) of EEPROM – Page size: 64 bytes – Additional Write lockable page (M24256-D order codes)

• Single supply voltage and high speed: – 1 MHz clock from 1.7 V to 5.5 V

• Write: – Byte Write within 5 ms – Page Write within 5 ms

• Operating temperature range: – from -40 °C up to +85 °C

• Random and sequential Read modes • Write protect of the whole memory array

• Enhanced ESD/Latch-Up protection

• More than 4 million Write cycles

• More than 200-years data retention Packages


4256BWP datasheet pdf

4256BWP Datasheet PDF

TDA7294 Datasheet PDF – 100V, 100W, Audio Amplifier – ST

Part Number: TDA7294

Function: 100V, 100W, DMOS Audio Amplifier With Mute And Standby

Package: Multiwatt15V, Multiwatt15H Type

Manufacturer: ST Microelectronics


TDA7294 image


The TDA7294 is a monolithic integrated circuit in Multiwatt15 package, intended for use as audio class AB amplifier in Hi-Fi field applications (Home Stereo, self powered loudspeakers, Top class TV).

A DMOS (Double-Diffused Metal-Oxide-Semiconductor) audio amplifier is a type of amplifier commonly used in audio applications. DMOS amplifiers are known for their high output power capability, low distortion, and efficient operation.

DMOS amplifiers are often used in audio systems such as stereo amplifiers, home theater systems, and professional audio equipment. They are capable of delivering high-quality audio reproduction with sufficient power output to drive speakers effectively.

Thanks to the wide voltage range and to the high out current capability it is able to supply the highest power into both 4Ω and 8Ω loads even in presence of poor supply regulation, with high Supply Voltage Rejection. The built in muting function with turn on delay simplifies the remote operation avoiding switching on-off noises.


TDA7294 datasheet



1. Very high operating voltage range (± 40 V)

2. DMOS power stage

3. High output power (up to 100 W music power)

4. Muting/stand-by functions

5. No switch on/off noise

6. No boucherot cells

7. Very low distortion

8. Very low noise

9. Short circuit protection

10. Thermal shutdown

Official Homepage: https://www.st.com/en/audio-ics/tda7294.html


TDA7294 Datasheet