M29W640GL70ZS6E

M29W640GL70ZS6E is a 64‑Mbit NOR flash memory device (8 MB) from Macron/Spansion lineage, used for nonvolatile code and data storage in embedded systems. It offers random‑access, execute‑in‑place storage with a parallel, asynchronous bus (8‑bit data path) and a standard NOR flash command set (read, program, erase, protection, unlock). The naming indicates 64 Mbit density (M29W640), 70 ns access time (70), and family/packaging variants (GL70ZS6E). Typical operation uses a single 3.0 V supply (2.7–3.6 V) with 70 ns reads, block/sector erase (commonly 64 KB blocks) and chip erase. Endurance is in the tens of thousands of program/erase cycles per block, with data retention of years. Packages are standard NOR flash forms (e.g., TSOP/SOIC variants). Common uses include boot code, firmware storage, and data logging in microcontroller/SoC designs. For exact electrical specs, timing, and packaging details, consult the latest datasheet.

Equivalent parts (64 Mb, 3.0 V parallel NOR Flash, ~70 ns) from other vendors:
- Spansion S29GL064N
- Macronix MX29GL640EC
- Winbond W29GL064J
Note: check exact package, speed grade, and lead-free status in datasheets for a precise cross-reference.

Key features of M29W640GL70ZS6E (64‑Mb NOR flash):
- Size/organization: 64 Mbit, 8 M × 8 organization
- Speed: 70 ns access time
- Voltage: 3.0 V to 3.6 V (Vcc and I/O)
- Interface: asynchronous NOR flash with standard read/write/erase command set
- Erase/Program: sector erase (typ. 64 KB); page/byte programming (typ. up to 256 bytes per program)
- Endurance/Retention: ~100,000 erase cycles; data retention >20 years
- Protection: hardware block protection and WP# pin for write protection
- Power management: low-power modes including deep power-down
- Temperature: industrial range, typically -40°C to +85°C
- Packaging: 48‑pin form factor (typical TSOP or equivalent, RoHS)
Note: exact sector sizes, dual-bank support, and packaging variants can vary by exact revision; refer to the datasheet for precise details.

- Pin count: 8 pins (SOP-8)
- Function: Serial SPI NOR Flash memory (64 Mbit capacity) for non-volatile firmware/data storage. Interfaces via SPI: CS, SCLK, SI (MOSI), SO (MISO), plus WP, HOLD, VCC, GND. Supports standard operations such as Read/Fast Read, Page Program, Sector Erase, and Bulk Erase.

- Manufacturer: STMicroelectronics (STMicroelectronics N.V.)
- What kind of company: A multinational European semiconductor and electronics company that designs and manufactures integrated circuits and semiconductor devices (e.g., memory, microcontrollers, sensors) for global markets.

- Code storage and execute-in-place (XIP) for embedded MCUs/SoCs
- Boot firmware storage and firmware updates in consumer electronics (set-top boxes, TVs, DVD players, routers)
- Automotive and industrial ECUs for firmware and non-volatile data
- Non-volatile storage for calibration data, look-up tables, and parameters in embedded systems
- In-system programming and field firmware upgrades requiring reliable random-access flash

48-pin TSOP (Thin Small Outline Package) NOR flash.