LC321664AT-80

Ordering number : EN4795C CMOS LSI LC321664AJ, AM, AT-80 1 MEG (65536 words × 16 bits) DRAM Fast Page Mode, Byte Write Overview The LC321664AJ, AM, AT is a CMOS dynamic RAM operating on a single 5 V power source and having a 65536-word × 16-bit 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 compact plastic packages of SOJ 40-pin, SOP 40-pin and TSOP 44-pin. Refresh rates are within 4 ms with 256 row address (A0 to A7) selection and support RAS-only refresh, CAS-before-RAS refresh and hidden refresh settings. There are functions such as page mode, read-modifywrite, and byte-write. Package Dimensions unit: mm 3200-SOJ40 [LC321664AJ] Features 65536-word × 16-bit configuration Single 5 V ±10% power supply All input and output (I/O) TTL compatible Supports fast page mode, read-modify-write, and bytewrite. Supports output caching control using early write and Output Enable (OE) control. 4 ms refresh using 256 refresh cycles Supports RAS-only refresh, CAS-before-RAS refresh and hidden refresh. Packages SOJ 40-pin (400 mil) plastic package: LC321664AJ SOP 40-pin (525 mil) plastic package: LC321664AM TSOP 44-pin (400 mil) plastic package: LC321664AT RAS access time/column address acce...