參數(shù)資料
型號(hào)： SMX55161A-80HKCI
廠(chǎng)商： AUSTIN SEMICONDUCTOR INC
元件分類(lèi)： DRAM
英文描述： 256K X 16 VIDEO DRAM, 80 ns, CDFP64
封裝： CERAMIC, FP-64
文件頁(yè)數(shù)： 1/64頁(yè)
文件大?。?/td> 1223K
代理商： SMX55161A-80HKCI
VRAM
SM55161A
Production
Austin Semiconductor, Inc.
AustinSemiconductor,Inc.reservestherighttochangeproductsorspecificationswithoutnotice.
1
SMJ55161A
Rev. 1.6
03/05
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 Video-Data
Streams
Pin-out Compatible upgrade from SM55161
Compatible With JEDEC Standards
262144 x 16 BIT VRAM
MULTIPORT VIDEO RAM
PIN ASSIGNMENT
(Top View)
64-Pin Ceramic Flatpack (HKC)
OPTIONS
MARKING
Timing
70ns access
-70
75ns access
-75
80ns access
-80
Package
68 pin PGA
GB
64 pin Flatpack
HKC
Operating Temperature Ranges
- Military (-55oC to +125oC)
M suffix
- Industrial (-40oC to +85oC)
I suffix
For more products and information
please visit our web site at
www.austinsemiconductor.com
AVAILABLE AS MILITARY
SPECIFICATIONS
Military Processing Flow(SM Level)
-55C to 125C temperature
PIN DESCRIPTIONS
PIN
DESCRIPTION
A0-A8
Address inputs
CASL\, CASU\
Column-Address Strobe/Byte Selects
DQ0-DQ15
DRAM Data I/O, Write Mask Data
Special Function Select
DSF
Special-Function Select
NC/GND
No Connect/Ground (NOTE: Not
connected internally to VSS)
QSF
Special-Function Output
RAS\
Row-Address Strobe
SC
Serial Clock
SE\
Serial Enable
SQ0-SQ15
Serial-Data Output
TRG\
Output Enable, Transfer Select
VCC
5V Supply (TYP)
VSS
Ground
WE\
DRAM Write-Enable Select
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相關(guān)代理商/技術(shù)參數(shù)
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