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LC321667BM-80 Datasheet

  • LC321667BM-80

  • x16 EDO Page Mode DRAM

  • 31頁

  • ETC

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Ordering number : EN*5083
CMOS LSI
LC321667BJ, BM, BT-70/80
1 MEG (65536 Words
脳
16 Bits) DRAM
EDO Page Mode Byte Write
Preliminary
Overview
The LC321667BJ series is a CMOS dynamic RAM
operating on a single 5 V power source and having a
65536 words
脳
16 bits configuration. Equipped with large
capacity capabilities, high speed transfer rates and low
power dissipation, this series is suited for a wide variety of
applications ranging from computer main memory and
expansion memory to commercial equipment.
Address input utilizes a multiplexed address bus which
permits it to be enclosed in a compact plastic package of
40-pin SOJ. Refresh rates are within 4 ms with 256 row
address (A0 to A7) selection and support Row Address
Strobe (RAS)-only refresh, Column Address Strobe
(CAS)-before-RAS refresh and hidden refresh settings.
There are functions such as Extended Data Out (EDO)
page mode, read-modify-write and byte write.
鈥?4 ms refresh using 256 refresh cycles.
鈥?Supports RAS-only refresh, CAS-before-RAS refresh
and hidden refresh.
鈥?Packages
SOJ 40-pin plastic package (400 mil): LC321667BJ
SOP 40-pin plastic package (525 mil): LC321667BM
TSOP 44-pin plastic package (400 mil): LC321667BT
鈥?RAS access time/column address access time/CAS
access time/cycle time/power dissipation.
Package Dimensions
unit: mm
3200-SOJ40 II
[LC321667BJ]
Features
65536 words
脳
16 bits configuration.
Single 5 V 鹵 10% power supply.
All input and output (I/O) TTL compatible.
Supports EDO page mode, read-modify-write and byte
write.
鈥?Supports output buffer control using early write and
Output Enable (OE) control.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
SANYO: SOJ40 II
Parameter
RAS access time
Column address access time
CAS access time
Cycle time
Power consumption (max)
During operation
During standby
LC321667BJ, BM, BT-70
70 ns
40 ns
25 ns
125 ns
688 mW
LC321667BJ, BM, BT-80
80 ns
45 ns
25 ns
135 ns
633 mW
5.5 mW (CMOS level)/11 mW (TTL level)
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft鈥檚
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
40695TH (OT) No. 5083-1/31

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