TI-TMS55165-60DGH.pdf
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TMS55165, TMS55166, TMS55175, TMS55176
262144 BY 16-BIT MULTIPORT VIDEO RAM
SMVS463 – DECEMBER 1995
1
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443
D
Organization:
DRAM: 262144 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
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
performance ranges
ACCESS TIME
ROW ENABLE
t
RAC
(MAX)
ACCESS TIME
SERIAL DATA
t
SCA
(MIN)
DRAM PAGE
CYCLE TIME
t
PC
(MIN)
DRAM EDO
CYCLE TIME
t
PC
(MIN)
SERIAL
CYCLE TIME
t
SCC
(MIN)
OPERATING CURRENT
SERIAL PORT STANDBY
lCC
1
(MAX)
– 60 Speed 60 ns 15 ns 35 ns 30 ns 18 ns 180 mA
– 70 Speed 70 ns 20 ns 40 ns 30 ns 22 ns 165 mA
Table 1. Device Option Table
DEVICE POWER SUPPLY VOLTAGE BLOCK-WRITE CAPABILITY PAGE/EDO OPERATION
55165 5.0 V ± 0.5 V 4-column Page
55166 5.0 V ± 0.5 V 4-column EDO
55175 5.0 V ± 0.5 V 8-column Page
55176 5.0 V ± 0.5 V 8-column EDO
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
TI and EPIC are trademarks of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 1995, Texas Instruments Incorporated
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