MSM514221B - OKI electronic componets

MSM514221B DRAM / FAST PAGE MODE TYPE

E2L0029-17-Y1 ¡ Semiconductor MSM514221B ¡ Semiconductor 262,263-Word ¥ 4-Bit Field Memory This version: Jan. 1998 MSM514221B Previous version: Dec. 1996 DESCRIRTION The OKI MSM514221B is a high performance 1-Mbit, 256K ¥ 4-bit, Field Memory. It is designed for high-speed serial access applications such as HDTVs, conventional NTSC TVs, VTRs, digital movie.

Features

• Single power supply: 5 V ± 10%
• 512 Rows ¥ 512 Column ¥ 4 bits
• Fast FIFO (First-in First-out)operation
• High speed asynchronous serial access Read/Write cycle time 30 ns/40 ns/60 ns Access time 25 ns/30 ns/50 ns
• Functional compatibility with OKI MSM518221
• Self refresh (No refresh control is required)
• Package options: 16-pin 300 mil plastic DIP (DIP16-P-300-2.54-W1) 26/20-pin 300 mil plastic SOJ (SOJ26/20-P-300-1.27) 20-pin 400 mil plastic ZIP (ZIP20-P-400-1.27) (Product : MSM514221B-xxRS) (Product : MSM514221B-xxJS) (Product : MSM514221B-xxZS) xx indicates speed rank. PRODUCT FAM.