TOSHIBA 1l:55B4257J-12/15/20 SILICON GATE BiCMOS.
Toshiba
TC55B4257J-15 - 256K x 4-Bit BiCMOS Static RAM
TOSHIBA 1l:55B4257J-12/15/20 SILICON GATE BiCMOS 262,144 WORD x 4 BIT BiCMOS STATIC RAM Description The TC55B4257J is a 1,048,576 bit high speed B.