PC28F640P30BF65A

PC28F640P30BF65A is a 64‑Mbit parallel NOR flash memory device (PC28F640P family). It stores firmware or nonvolatile data and is used as execute-in-place (XIP) storage in embedded systems.
Key points:
- Capacity: 64 Mbit (8 MB), parallel x8 data bus.
- Supply: typically 3.0 V region; supports NOR flash command set (unlock, block erase, program, read).
- Interface: asynchronous parallel access with address lines and DQ0–DQ7 data bus; CE, OE, WE control signals.
- Operations: block/sector erase and byte/word/program; random read access with sector/block erase times and programming/erase times as specified in the datasheet.
- Packaging/grading: “BF65A” suffix denotes packaging type and temperature grade.
- Typical use: boot ROMs, firmware storage in microcontrollers or embedded controllers; advantages include random access and execute-in-place, with slower writes/erases than NAND.
For exact timing, electrical characteristics, pinout, endurance, and endurance, refer to the official datasheet from the manufacturer.

Here are the typical features of PC28F640P30BF65A (NOR flash):
- Capacity: 64 Mbit (8 MB) NOR Flash
- Interface/Volts: Single 3.0 V supply (VCC); 8-bit data bus (x8)
- Speed: ~65 ns read access time
- Read modes: Random and burst/continuous reads
- Erase/Program: Block erase (64 KB blocks) and page/program operations
- Endurance/Retention: ~100k program/erase cycles; data retention > ~20 years
- Protection: Hardware block protection and status register/lock options
- Power: Low-power standby modes available
- Packaging/Thermals: Designed for embedded systems (industrial temperature ranges per device variant)
Note: Specific timing figures (e.g., exact erase times, page sizes, voltage tolerances, temperature range) are in the official datasheet.

- Pin count: 48 pins
- Function: 64-Mbit (8 Mbyte) parallel NOR flash memory with an 8-bit data bus. Provides non-volatile storage with random access; interface includes address lines A0–A22, data lines DQ0–DQ7, and control signals CE#, OE#, WE# (plus optional RESET depending on variant).

Manufacturer: Spansion.
What kind of company: A semiconductor company that specializes in flash memory (non-volatile memory) products. Spansion was originally a joint venture between AMD and Fujitsu and later became part of Cypress Semiconductor.

PC28F640P30BF65A is a 64‑Mbit parallel NOR flash memory used to store non-volatile firmware and data in embedded systems. Typical applications include:
- Boot firmware and application code for microprocessors/MCUs
- BIOS/firmware storage in automotive ECUs, industrial controllers, and consumer electronics
- Firmware updates in set-top boxes, digital cameras, printers, routers
- Code storage in medical instrumentation and other embedded devices
- Systems requiring reliable, fast random access for executable code or parameter data

TSOP-48 (48-pin Thin Small Outline Package) plastic package.