M29W256GH70N6E

M29W256GH70N6E is a high-density NOR flash memory device from Macronix (MXIC). It stores firmware and other non-volatile data for embedded systems and code bootloads, offering random-access reads and block/sector erase.
Key points:
- Capacity: 256 Mbit (about 32 MB).
- Memory type: NOR flash (random access, suitable for execute-in-place).
- Bus width: typically x8/x16 data interfaces (variant dependent).
- Voltage and speed: standard 3.3V operation with a 70 ns read access time (speed grade indicated by “70”).
- Organization and operations: block/sector erase with page/program capabilities; supports typical flash features such as status flags and ready/busy signaling.
- Features: hardware/software protection options, power-down modes, and data retention suitable for embedded firmware storage.
- Packaging/temperature: offered in common packages (e.g., 48-pin), with commercial/industrial temperature ranges depending on variant.
Note: exact electrical specs, organization (sector/page sizes), packaging, and temperature range vary by revision. Always consult the latest datasheet and the specific variant (GH70N6E) for precise parameters.

Concise features of M29W256GH70N6E:
- Density: 256-megabit (32 MB) NOR flash
- Interface: 8-bit parallel data bus (x8)
- Voltage: 3.0 V nominal (typical range 2.7–3.6 V)
- Speed: 70 ns random-access read
- Operation: Asynchronous read/write with standard NOR flash command set
- Erase/Program granularity: Block erase up to 128 KB (with chip/sector options)
- Endurance: ~100,000 program/erase cycles
- Data retention: >20 years
- Temperature: Industrial range typically -40 °C to +85 °C
- Protections: Hardware block protection and write-protect features with status polling
- Power: Low-power standby modes
- Packaging: Common 48-pin packages (specific options vary)
Note: Always verify exact block sizes, timing, and packaging from the official datasheet for your lot.

NOR flash M29W256GH70N6E is housed in a 48‑pin TSOP II surface‑mount package.

- Pin count: 48 pins (typical TSOP/SOP package)
- Function: 256-Mbit NOR flash memory with a parallel 8-bit data bus (DQ0–DQ7), address lines A0–A25, and control signals CE#, OE#, WE#, RESET# (plus VCC/GND). Used for non-volatile program/data storage in embedded systems; 70 ns speed grade.

STMicroelectronics. It is a European multinational semiconductor company that designs, manufactures, and markets a broad range of integrated circuits and discrete semiconductors for automotive, industrial, consumer, and computing markets.

Applications of M29W256GH70N6E (256 Mbit NOR flash):
- Embedded systems: code storage and execute-in-place (XIP)
- Boot memory for MCUs/SoCs
- Firmware updates and non-volatile storage
- Consumer electronics (set-top boxes, printers, cameras)
- Networking equipment
- Automotive ECUs and related electronics