262144 BY 16-BIT MULTIPORT VIDEO RAMS
TMS55160, TMS55161, TMS55170, TMS55171 262144 BY 16-BIT MULTIPORT VIDEO RAMS
D Organization:
DRAM: 262 144 Words × 16 B...
Description
TMS55160, TMS55161, TMS55170, TMS55171 262144 BY 16-BIT MULTIPORT VIDEO RAMS
D Organization:
DRAM: 262 144 Words × 16 Bits SAM: 256 Words × 16 Bits
D Single 5.0-V Power Supply (±10%) D Dual-Port Accessibility – Simultaneous and
Asynchronous Access From the DRAM and
Serial-Address-Memory (SAM) Ports
D Write-per-Bit Function for Selective Write to
Each I/O of the DRAM Port
D Byte-Write Function for Selective Write to
Lower Byte (DQ0 – DQ7) or Upper Byte
(DQ8– DQ15) of the DRAM Port
D 4 - Column or 8 - Column Block - Write
Function for Fast Area - Fill Operations
D Enhanced Page Mode for Faster Access
With Extended-Data-Output (EDO) Option
for Faster System Cycle Time
D CAS-Before-RAS (CBR) and Hidden
Refresh Functions
D Long Refresh Period – Every 8 ms
(Maximum)
D Full - Register- Transfer Function Transfers
Data from the DRAM to the Serial Register
performance ranges
SMVS464 – MARCH1996
D Split-Register-Transfer Function Transfers
Data from the DRAM to One-Half of the
Serial Register While the Other Half is
Outputing Data to the SAM Port
D 256 Selectable Serial Register Starting
Points
D Programmable Split-Register Stop Point D Up to 55-MHz Uninterrupted Serial-Data
Streams
D 3-State Serial Outputs for Easy Multiplexing
of Video Data Streams
D All Inputs/Outputs and Clocks TTL
Compatible
D Compatible With JEDEC Standards D Designed to Work With the Texas
Instruments (TI) Graphics Family
D Fabricated Using TI’s Enhanced
Performance Implanted CMOS (EPIC) Process
– 60 Speed ...
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