AS6C4008 Series 5.5 V 4 Mb (512 K x 8 bit ) 55 ns Low Power CMOS SRAM -TSOP11-32
SRAM Chip Async Single 3.3V/5V 4M-Bit 512K x 8Bit 55ns 32-Pin TSOP-II T/R
Low Power CMOS SRAM 4MB 32pin TSOP II 2.7-5V 512k x 8
IC SRAM 4MBIT PARALLEL 32TSOP II