AS7C4098 is a 5V/3.3V 256K × 16 CMOS SRAM produced by Alliance Semiconductor. It features high speed, low power consumption, and easy expansion.
The document describes the AS7C4098 (5V version) and AS7C34098 (3.3V version), which are high-performance CMOS SRAM devices organized as 262,144 words x 16 bits. These chips are designed for applications requiring fast data access, low power consumption, and simple interfacing.
| Organization | 262,144 words x 16 bits |
|---|---|
| Address access time (AS7C4098) | 10/12/15/20 ns |
| Output enable access time (AS7C4098) | 5/6/7/8 ns |
| Supply voltage (AS7C4098) | 4.5 to 5.5 V |
| Supply voltage (AS7C34098) | 3.0 to 3.6 V |
| Operating temperature range | -40 to +85 °C |
The AS7C4098 is a 5V version while the AS7C34098 is a 3.3V version.
The maximum active power dissipation for the AS7C4098 is 1375 mW when operating at a 12 ns address access time.
The output high voltage (VOH) is a minimum of 2.4 V when sourcing or sinking 4 mA at the minimum supply voltage.