[Austin Semiconductor, Inc.]

GENERAL DESCRIPTION

The AS5C4009LL is organized as 524,288 x 8 SRAM utilizing a special ultra low power design process. ASI’s pinout adheres to the JEDEC standard for pinout on 4 megabit SRAMs. The evolutionary 32 pin version allows for easy upgrades from the 1 meg SRAM design.

FEATURES

? Ultra Low Power with 2V Data Retention

(0.2mW MAX worst case Power-down standby)

? Fully Static, No Clocks

? Single +5V ±10 power supply

? Easy memory expansion with CE and OE options

? All inputs and outputs are TTL-compatible

? Three state outputs

? Operating temperature range:

Ceramic -55°C to +125°C & -40°C to +85°C

Plastic -40°C to +85°C3