LC322271M

Ordering number : EN*5085A CMOS LSI LC322271J, M, T-70/80 2 MEG (131072 words × 16 bits) DRAM Fast Page Mode, Byte Write Preliminary Overview The LC322271J, M and T is a CMOS dynamic RAM operating on a single 5 V power source and having a 131072 words × 16 bits configuration. Equipped with large capacity capabilities, high speed transfer rates and low power dissipation, this series is suited for a wide variety of applications ranging from computer main memory and expansion memory to commercial equipment. Address input utilizes a multiplexed address bus which permits it to be enclosed in a compact plastic package of SOJ 40-pin, SOP 40-pin, and TSOP 44-pin . Refresh rates are within 8 ms with 512 row address (A0 to A7, A8R) selection and support Row Address Strobe (RAS)-only refresh, Column Address Strobe (CAS)-before-RAS refresh and hidden refresh settings. There are functions such as fast page mode, read-modify-write and byte write. The pin assignment follows the JEDEC 1 M DRAM (65536 words × 16 bits, 1CAS/2WE) standard. Package: SOJ 40-pin (400 mil) plastic package : LC322271J SOP 40-pin (450 mil) plastic package: LC322271M TSOP 44-pin (400 mil) plastic package : LC322271T Package Dimensions unit: mm 3200-SOJ40 [LC322271J] Features 131072 words × 16 bits configuration. Single 5 V ± 10% power supply. All input and output (I/O) TTL compatible. Supports fast page mode, read-modify-write and byte write. Supports output buffer control using early write and...