Description

Addressing

The UD61466 is a dynamic random access memory organized 65536 words by 4 bits.

SCM facilitates faster data operation with predefined row address. Via 8 address inputs the 16 address bits are transmitted into the internal address memories in a time-multiplex operation.

Features

❐ Dynamic random access memory 65536 x 4 bits manufactured using a CMOS technology

❐ RAS access times 70 ns/80 ns

❐ TTL-compatible

❐ Three-state outputs bidirectional

❐ 256 refresh cycles 4 ms refresh cycle time

❐ STATIC COLUMN MODE

❐ Operating modes: Read, Write, Read - Write, RAS only Refresh, Hidden Refresh with address transfer

❐ Low power dissipation

❐ Power supply voltage 5 V

❐ Package PDIP18 (300 mil)

❐ Operating temperature range 0 to 70 °C

❐ Quality assessment according to CECC 90000, CECC 90100 and CECC 90112