M29W640GB70NA6E

M29W640GB70NA6E is a 64‑Mbit NOR flash memory device in the M29W640GB family. It provides nonvolatile, random‑access storage for embedded systems and firmware/code storage, with a parallel NOR interface and an 8‑bit data bus. Typical organization is 8 MBytes, with sector/block erase (blocks such as 64 KB common; exact sizes vary by variant). The “70” in the part number indicates a 70 ns read access time. It generally operates from a single supply in the low‑voltage range (about 2.7–3.6 V) and, for industrial variants, supports wide temperature ranges (e.g., -40 to 85 C). The suffix NA6E encodes packaging, temperature grade, and related packaging details. Features often include standard read/program/erase operations, block protection, and option‑selectable arrays to support execute-in-place (XIP) in embedded systems. For exact pinout, timing, voltage specs, erase block sizes, and packaging, consult the official datasheet and supplier product brief.

Equivalent 64-Mbit parallel NOR Flash parts (70 ns, 3V) include:
- Winbond W29GL640GB (and W29GL640GE)
- Spansion S29GL640P / S29GL640N
- Macronix MX29W640GB (same family)

Here are the typical features of the M29W640GB70NA6E (M29W640GB family, parallel NOR flash):
- Density: 64 Mbit (8 M × 8) NOR flash with a parallel 8-bit data bus
- Speed: 70 ns read access time
- Supply: 3.0 V operation (2.7–3.6 V range)
- Interface: parallel NOR flash (non-SPI)
- Data access: random and sequential read; supports page programming
- Page size: typically up to 256 bytes
- Erase: sector/block/whole-array erase (sector sizes commonly 64K or 128K)
- Endurance: typical erase cycles in the 100K range; data retention long-term
- Protection: hardware block/sector protection and write protection features
- Status: Ready/Busy signaling for operation completion
- Power modes: standby and low-power operation
- Temperature: industrial/commercial variants available (check datasheet for exact range and package)
For exact package, temperature range, and sector sizes, consult the specific datasheet for your part variant.

Pin count: 48 pins (TSOP/48-pin package).
Function: 64-Mbit NOR Flash memory with a parallel interface (M29W640GB family; 70 ns speed). Used for non-volatile storage of firmware/code, providing random access via address lines (A0–A) and eight data I/O lines (DQ0–DQ7) with standard control signals (CS, OE, WE, etc.).

- Manufacturer: STMicroelectronics (ST)
- Company type: A global (multinational) semiconductor company that designs, develops, and manufactures integrated circuits and discrete semiconductors for a wide range of applications. Headquarters in Geneva, Switzerland (registered in the Netherlands as STMicroelectronics N.V.).

Typical application areas for M29W640GB70NA6E (64Mbit NOR flash):
- Embedded systems and microcontroller-based devices (firmware storage and execute-in-place)
- Automotive electronics and ECUs
- Industrial controls and automation
- Consumer electronics (set-top boxes, TVs, printers, digital cameras)
- Networking/telecom equipment (routers, modems, switches)
- IoT devices and smart metering
- Firmware updates and boot ROM storage
These devices leverage NOR flash for reliable code storage, fast random access, and high endurance.

M29W640GB70NA6E is a 64 Mbit NOR flash in a TSOP-48 (48-pin) package.