MSM548262 Datasheet - OKI electronic

MSM548262 Multiport DRAM

The MSM548262 is a 2-Mbit CMOS multiport DRAM composed of a 262,144-word by 8-bit dynamic RAM, and a 512-word by 8-bit SAM. Its RAM and SAM operate independently and asynchronously. It supports three types of operations: random access to RAM port, high speed serial access to SAM port, and bidirectio.

MSM548262 Features

* block write, flash write functions on the RAM port and a split data transfer capability on the SAM port. The SAM port requires no refresh operation because it uses static CMOS flipflops. FEATURES

* RAS only refresh

* Single power supply: 5 V ± 10%

* CAS before RAS refresh

MSM548262_OKIelectronic.pdf