TMS416169 Datasheet, PDF (1/67 Pages) Texas Instruments – 1048576-WORD BY 16-BIT EXTENDED DATA OUT HIGH-SPEED DRAMS

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
– 70 Speed
ACCESS TIME
ROW ENABLE
tRAC
(MAX)
60 ns
70 ns
ACCESS TIME
SERIAL DATA
tSCA
(MIN)
15 ns
20 ns
DRAM PAGE
CYCLE TIME
tPC
(MIN)
35 ns
40 ns
DRAM EDO
CYCLE TIME
tPC
(MIN)
30 ns
30 ns
SERIAL
CYCLE TIME
tSCC
(MIN)
18 ns
22 ns
OPERATING CURRENT
SERIAL PORT STANDBY
lCC1
(MAX)
180 mA
165 mA
DEVICE
55160
55161
55170
55171
Table 1. Device Option Table
POWER SUPPLY VOLTAGE
5.0 V ± 0.5 V
5.0 V ± 0.5 V
5.0 V ± 0.5 V
5.0 V ± 0.5 V
BLOCK-WRITE CAPABILITY
4 -column
4 -column
8 - column
8 - column
PAGE / EDO OPERATION
Page
EDO
Page
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  1996, Texas Instruments Incorporated
• POST OFFICE BOX 1443 HOUSTON, TEXAS 77251–1443
1