MX25U3232FBHI02

MX25U3232FBHI02 is Macronix’s 32‑Mbit serial NOR flash memory. It stores firmware or data non‑volatily and is accessed via an SPI‑compatible interface with optional Dual/Quad I/O modes for higher throughput. It uses 3‑byte addressing (no 4‑byte mode needed for this density) and typically comes in an 8‑pin package.
Key features:
- Capacity: 32 Mbit (4 MB)
- Organization: 4 KB sectors; supports block erases (e.g., 64 KB) and chip erase
- Page size: 256 bytes per page
- Interface: standard SPI with Dual/Quad I/O options
- Voltage: 2.7–3.6 V
- Temperature: industrial range (-40°C to +85°C)
- Write protection, security features, and deep power‑down
The FB/HI02 suffixes indicate package and industrial temperature variant options. For exact timing, package, and electrical specs, consult the official datasheet. Typical uses include firmware storage and boot code for MCUs/SoCs.

Equivalent 32-Mbit SPI NOR Flash devices from major vendors:
- Winbond W25Q32FV / W25Q32JV
- GigaDevice GD25Q32ES / GD25Q32ESIG
- ISSI IS25LP032D / IS25LP032I
- Puya P25Q32H
- Macronix MX25L3232F / MX25U3232F (same family)
Note: verify voltage, speed, and quad/dual I/O features for exact cross-reference.

Key features of MX25U3232FBHI02 (32 Mbit serial flash):
- Capacity: 32 Mbit (4 MB) of non-volatile flash memory
- Interface: SPI-compatible; supports Standard SPI, Dual I/O, and Quad I/O (QIO) modes
- Speed: Fast read; clock up to 104 MHz (SPI mode; higher effective speeds in Dual/Quad)
- Voltage: 2.7–3.6 V operation
- Memory organization: 256-byte page size; 4 KB sectors; 32 KB and 64 KB blocks
- Programming/erasure: Page program; sector/block erase; WREN/WRDI and status registers
- Endurance/Data retention: ~100k P/E cycles; data retention typically ≥20 years
- Security/protection: Hardware write protection; sector/block protection; status register bits
- Power modes: Deep Power-Down mode; active/standby power management
- Packaging/grade: 8-pin package; industrial temperature variants available (Hi02 suffix typically indicates industrial grade)
- Applications: Firmware storage, boot memory, code shadowing, firmware updates
Note: exact timing and voltage/temperature ranges depend on the specific package grade; consult the datasheet for precise specs.

- Pin count: 8 pins (8‑pin package such as SOP8/USON8)
- Function: Macronix MX25U3232FBHI02 is a 32 Mbit serial flash memory with SPI interface. Pins provide:
- CS# (chip select), CLK (serial clock), SI (data in), SO (data out)
- WP# (write protect), HOLD# (hold)
- VCC and GND power pins
- It supports standard SPI (and Quad/dual modes when applicable) for read/write operations.

- Manufacturer: Macronix International Co., Ltd. (MXIC)
- What kind of company: A Taiwan-based semiconductor company that designs and manufactures non-volatile memory ICs (NOR/NAND flash, EEPROM). It operates as an integrated device manufacturer (IDM) with in-house wafer fabrication.

MX25U3232FBHI02 is a 32 Mbit serial NOR flash. Typical application areas:
- Embedded systems: firmware storage, boot memory for MCUs/SoCs
- In-field firmware updates (OTA) and secure boot support
- IoT devices, smart sensors, gateways, wearables
- Consumer electronics: printers, set-top boxes, HMI panels
- Automotive and industrial controls: ECUs, instrument clusters, PLCs
- Data logging and configuration storage in various devices
Concise, non-volatile storage for code and small data in mixed-signal and embedded applications.

8-pin SOP (SOIC) package.