W25Q128JVCIQ

W25Q128JVCIQ is Winbond’s 128-Mbit serial NOR flash memory in the W25Q family. It provides non-volatile storage for code or data with a small 8-pin package.
Key points
- Capacity: 128 Mbit (16 MB).
- Interface: SPI with options for fast/dual/quad I/O (DQ) modes for higher throughput; typical fast read speeds up to about 104 MHz.
- Voltage: 2.7–3.6 V.
- Organization and operations: 256-byte page programming; 4 KB sectors; 64 KB blocks; supports standard commands (read, fast read, page program, sector/block erase, chip erase) plus write enable/disable and status registers.
- Power: includes low-power/deep power-down modes.
- Endurance: typical erase/program life around 100,000 cycles.
- Packaging/temperature: common 8-pin package; “CIQ” variant denotes a specific package/temperature grade (check datasheet for exact details).
- Applications: boot memory and program storage for microcontrollers, data logging, firmware updates.
Note: Exact features (speed, timing, endurance, package) vary by variant; consult the datasheet for the CIQ-specific details.

W25Q128JVCIQ features (concise):
- 128 Mbit (16 MB) serial flash memory
- SPI-compatible interface with standard SPI, Dual I/O, and Quad I/O modes
- 24-bit addressing; 256-byte page program; 4 KB sectors; 64 KB blocks; chip erase
- Operating voltage: 2.7–3.6 V
- Industrial temperature range: -40 to 85°C
- High-speed operation: up to 104 MHz in SPI; dual/quad modes for higher throughput
- Data retention around 20 years; endurance ~100,000 program/erase cycles
- Power features: deep power-down, fast/standard read, reset, and hardware block protection (WP#)
- Suitable for boot/firmware storage, code/data storage in MCUs
- Package: typical 8-pin package (SOP/UDFN) compatible
Note: exact speed grades and protection options can vary by revision; verify in datasheet for your part lot.

8-pin SOP (SOIC-8) package for the W25Q128JVCIQ serial flash.

- Pin count: 8 pins (8-pin SOIC/SO package)
- Function: 128-Mbit serial SPI flash memory (Winbond W25Q128JV family). Pins provide: CS (chip select), SCK/CLK (serial clock), SI/MOSI (data in), SO/MISO (data out), WP# (write protect), HOLD# (hold), VCC, GND.

- Manufacturer: Winbond Electronics Corp.
- Company type: A Taiwanese semiconductor company that designs and manufactures memory ICs (NOR/NAND flash, DRAM) and provides global memory solutions for embedded, consumer, industrial, and automotive markets.

Typical applications include:
- Firmware storage and boot memory for microcontrollers/SoCs
- External program/data flash for embedded systems and single-board computers
- Firmware update storage in consumer electronics (set‑top boxes, routers, media players, TVs)
- Nonvolatile data logging and configuration storage for IoT/industrial devices
- Small-footprint code/data memory in printers, medical devices, and appliances

Equivalent 128 Mbit SPI NOR Flash parts from other vendors include:
- Macronix MX25L128 (MX25L12845G, MX25L12833F)
- Gigadevice GD25Q128C
- Spansion/Cypress S25FL128S (S25FL128P)
- ISSI IS25LP128D/IS25LP128M
- Eon Silicon EN25QH128A
Verify package, voltage (3.0/3.3V), and timing for your design.