Austin Semiconductor SM55161A
The SMJ55161A, a multiport-video random-access memory (RAM), is a high-speed, dual-port memory device. It consists of a dynamic RAM (DRAM) module organized as 262 144 words of 16 bits each interfaced to a serial-data register (serial-access memory [SAM]) organized as 512 words of 16 bits each.| Part No. | SM55161A |
|---|---|
| Datasheet | SM55161A Download |
| Manufacturer |  Austin Semiconductor |
| Description | 262144 x 16 BIT VRAM MULTIPORT VIDEO RAM |
| Buy | Stock & Price |
FEATURES
● Organization: – DRAM: 262 144 by 16 Bits – SAM: 512 by 16 Bits● Dual-Port Accessibility – Simultaneous and Asynchronous Access From the DRAM and SAM Ports
● Bidirectional Data-Transfer Function From the DRAM to the Serial-Data Register, and from Serial Data Register to DRAM
● (8 x 8) x 2 Block Write feature for fast area fill
● Write-Per-Bit Feature for Selective Write to Each RAM I/O; Two Write-Per-Bit Modes to Simplify System Design
● Byte-Write Control (CASL, CASU) Provides Flexibility
● Extended Data Output for Faster System Cycle Time
● Enhanced Page-Mode Operation for Faster Access
● CAS-Before-RAS (CBR) and Hidden-Refresh Modes
● Long Refresh Period: Every 8 ms (Maximum)
● Up to 50-MHz Uninterrupted Serial-Data Streams
● 512 Selectable Serial-Register Starting Locations
● SE-Controlled Register-Status QSF
● Split-Register-Transfer Read for Simplified Real-Time Register Load
● Programmable Split-Register Stop Point
● 3-State Serial Outputs Allow Easy Multiplexing of V...
