S29GL032N90TFI020

S29GL032N90TFI020 is a Spansion/Cypress 32-Mbit NOR flash memory device. Key points:
- Density: 32 Mbit (4 MB) of non-volatile storage.
- Voltage and speed: 3.0 V operation (typical 3.0–3.6 V) with a 90 ns read access time.
- Interface: Parallel NOR flash with the standard command set (Read, Page Program, Block/Sector Erase, etc.).
- Features: Block/sector erase, page programming, status/protection features (block locking), and typically a software/timeout status polling mechanism.
- Packaging: Delivered in the TF I020 package variant (specific form factor/pinout per datasheet).
- Applications: Firmware and code storage for microcontrollers and embedded systems requiring reliable, fast random access and in-system programming.
Note: Check the official datasheet for exact block sizes, page size, voltage ranges, timing specs, and packaging/pinout details.

Equivalents (32 Mb NOR flash, 90 ns, 3.0 V, TSOP-20) commonly include:
- Macronix MX29GL032E (and related MX29GL032D variants)
- Winbond W29GL032J (and W29GL032GN, depending on package)
Note: exact cross-reference depends on package and timing. Check the Spansion datasheet cross-reference table for your specific part number and packaging to confirm.

S29GL032N90TFI020 Features (concise):
- Density: 32 Mbit NOR flash (4 Mbyte effective)
- Access time: 90 ns read
- Data bus: x8
- Supply: 2.7–3.6V operation (I/O); typically 3.0V core
- Sector architecture: uniform sector erase (typical sector size 64 KB)
- Programming: 256-byte page programming
- Endurance/retention: ~100,000 P/E cycles; data retention about 20 years
- Temperature: Industrial grade, -40°C to +85°C
- Power modes: standard operation and deep power-down
- Programmer interface: in-system/in-application configurable via standard command set
- Features: sector protection with status register, hardware/software write protection
- Packaging/availability: offered in common NOR flash footprints suitable for embedded designs
Note: exact sector sizes and protections may vary by package/grade; refer to datasheet for precise specs.

Pin count: 20 pins.
Function: 32-Mbit NOR flash memory (non-volatile) used for firmware/code storage, in a 20-pin TFI package.

- Manufacturer: Spansion.
- What kind of company: A semiconductor company specializing in non-volatile memory (NOR Flash); originally a joint venture of AMD and Fujitsu, later acquired by Cypress Semiconductor (now part of Infineon Technologies).

S29GL032N90TFI020 is a NOR flash memory used as non-volatile storage in embedded systems. Typical applications include:
- Boot code and firmware storage (and in‑place execution) for microcontrollers/processors
- Firmware updates
- Automotive ECUs and instrument clusters
- Industrial controllers and PLCs
- Networking/telecom gear (routers, gateways, set‑top boxes)
- Consumer electronics (cameras, printers, DVRs)
- Medical devices and other rugged environments (industrial temperature grade)

8-pin TSOP (Thin Small Outline Package).