This document describes the features and characteristics of ASCEND Semiconductor's 4Mx4 EDO chip. The chip is fabricated with advanced submicron CMOS technology and is designed to operate from a single 3.3V power supply. It features high-speed access time, low power dissipation, extended data out mode, and CMOS level I/O.
The Ascend AD404M42V is a 4 Mx 4 EDO dynamic RAM organized as 4,194,304 words × 4 bits. It operates from a single 3.3 V supply and is offered in standard JEDEC‑compliant 26/24‑pin plastic SOJ or TSOP II packages. The device features high‑speed access times (5 ns, 200 MHz) and low power dissipation, making it suitable for battery‑backed portable electronics.
Key specifications include a supply voltage range of –0.5 V to +4.6 V, operating temperature from 0 °C to +70 °C, and various density options (1 M‑bit to 16 M‑bit). Detailed pin configurations, block diagrams, and timing tables are provided for design integration.
| Density options | 1 M‑bit to 16 M‑bit |
|---|---|
| Minimum cycle time | 5 ns (200 MHz) |
| Package types | 26/24‑pin plastic SOJ, TSOP II |
| Supply voltage range | -0.5 V to +4.6 V |
| Operating temperature | 0 °C to +70 °C |
| Power dissipation | 1.0 W |
| Input capacitance (Address) | 5 pF |
The device is designed to operate from a 3.3 V supply (typical 3.3 V, with a range of 3.0 V to 3.6 V).
It is offered in 26/24‑pin plastic SOJ and TSOP II packages.
The part supports up to 200 MHz operation, corresponding to a 5 ns minimum cycle time.
Active‑mode power consumption is specified as 432 mW (maximum).