Part Number: IBM025160
Function: 256K X 16 MULTIPORT VIDEO RAM
Package: SSOG-64 JEDEC Standard
Manufacturer: IBM Microelectronics
Pinouts:
Description
This 4Mb dual port Video RAM (VRAM) consists of a Dynamic Random Access Memory (DRAM) organized as 256K x 16 interfaced to a Serial Register / Serial Access Memory (SAM) organized as 256 x 16. The VRAM supports three basic operations : Bidirectional Random Access to the DRAM, Bidirectional Serial Access to the SAM, and Bidirectional Data Transfer between any DRAM row and the SAM. Full compatibility is provided between Half Depth SAM (256 x 16) and Full Depth SAM (512 x 16) by setting the VRAM in Serial Register Stop (SRS) mode with a stop address of 128 bit (or less).
Features
1. Fully Asynchronous operation of Random port and Serial port
2. Compatible to Full Depth SAM in SRS mode
3. 50 MHz EDO performance
4. Split Serial Register with Width Control
5. Full Read and Split Address Pointer for SAM
6. TTL compatible
Other data sheets are available within the file: IBM025161, IBM025170, IBM025171
IBM025160 Datasheet PDF Download
