The Renesas Electronics asynchronous static RAM center pwr & gnd pinout 4,194,304-bit high-speed static RAM organized as 256K x 16. It is fabricated using high-performance, high-reliability CMOS technology. This state-of-the-art technology, combined with innovative circuit design techniques, provides a cost-effective solution for highspeed memory needs. It has an output enable pin which operates as fast as 5 ns, with address access times as fast as 10 ns. It is packaged in a 44-pin, 400 mil Plastic SOJ and a 44-pin, 400 mil TSOP Type II package and a 48 ball grid array, 9mm x 9mm package.

256K x 16 advanced high-speed CMOS static RAM
JEDEC center power / GND pinout for reduced noise.
One chip select plus one output enable pin
Bidirectional data inputs and outputs directly LVTTL-compatible
Low power consumption via chip deselect
Upper and lower byte Enable Pins
Single 3.3 V power supply
Available in 44-pin, 400 mil plastic SOJ package and a 44-pin, 400 mil TSOP Type II package and a 48 ball grid array, 9mm x 9mm package.
Green parts available, see ordering information