PDM41028

NOTE: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

2. Appropriate thermal calculations should be performed in all cases and specifically for those where the chosen package has a large thermal resistance (e.g., TSOP). The calculation should be of the form: T_j = Ta + P * _ja where Ta is the ambient temperature, P is average operating power and _ja the thermal resistance of the package. For this product, use the following _ja values:
SOJ: 76^o C/W
TSOP: 100^o C/W

The PDM41028 is a high-performance CMOS static RAM organized as 262,144 x 4 bits. Writing to this device is accomplished when the write enable (WE) and the chip enable (CE) inputs are both LOW. Reading is accomplished when WE remains HIGH and CE and OE are both LOW.

The PDM41028 operates from a single +5V power supply and all the inputs and outputs are fully TTLcompatible.

The PDM41028 comes in two versions, the standard power version PDM41028SA and a low power version the PDM41028LA. The two versions are functionally the same and only differ in their power consumption.

The PDM41028 is available in a 28-pin 300-mil SOJ, and a 28-pin 400-mil SOJ for surface mount applications.