W9425G6KH-5I

W9425G6KH-5I is a CMOS SRAM memory IC (static RAM) used for fast, random-access storage in microcontroller/embedded systems. It belongs to the W9425G6K family and is typically available in 28-pin packages (SOIC/SOP), powered by a single 5V supply. Density variants commonly include 256K×8 or 1M×8 (and similar configurations), with no refresh requirement and fast access times (tAA) in the tens of nanoseconds, plus standard standby/low-power modes. The suffix -5I denotes a particular speed grade and packaging/temperature variant defined by the manufacturer.
To be certain of exact specs (density, voltage range, timing, operating temperature, and package), please consult the official datasheet from the supplier or manufacturer. If you can share the manufacturer context or a link, I can pull the precise details.

Here are the typical features of the Winbond W9425G6KH-5I SRAM:
- 256K x 8-bit static RAM
- Single 5V supply (4.5–5.5V)
- Industrial temperature range: -40°C to +85°C
- Asynchronous read/write operation
- 3-state bidirectional I/O with CE, OE, WE controls
- Low active and standby currents
- Available in 28-pin packages (DIP, SOIC, TSOP)
- TTL/CMOS-compatible I/O levels
Note: exact speed grade and current specs depend on the specific package/version in the datasheet.

28-pin package. It is a 32K × 8-bit static RAM (SRAM) with asynchronous read/write. Address bus: A0–A14; Data bus: DQ0–DQ7. Control signals: CE (Chip Enable), OE (Output Enable), and WE (Write Enable). Power: Vcc (5V) and GND; outputs are tri-stated when not enabled.

- Manufacturer: Winbond Electronics Corp. (Winbond)
- What kind of company: A Taiwanese multinational semiconductor company that designs and manufactures memory ICs (RAM/Flash/related devices); an integrated device manufacturer (IDM).