DP8422AV-25

DP8422AV-25 Description

The Texas Instruments DP8422AV-25 is a random access dynamic RAM with two access ports to simplify dual access. The DP8422AV-25 can give a low cost single chip interface between dynamic RAM and DSP and all 8, 16, and 32 bit systems.

DP8422AV-25 Features

■ On chip high precision delay line to guarantee critical DRAM access timing parameters
■ microCMOS process for low power
■ High capacitance drivers for RAS, CAS, WE and DRAM address on chip
■ On chip support for nibble, page and static column DRAMs
■ Byte enable signals on chip allow byte writing in a word size up to 32 bits with no external logic
■ Selection of controller speeds: 20 MHz and 25 MHz
■ On board Port A/Port B (DP8422A only)/refresh arbitration logic
■ Direct interface to all major microprocessors (application notes available)
■ 4 RAS and 4 CAS drivers (the RAS and CAS configuration is programmable)

DP8422AV-25 Applications

■ Mobile Devices
■ Computers
■ Servers