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LC321664AT-80 Datasheet

  • LC321664AT-80

  • 1 MEG (65536 words X 16 bits) DRAM Fast Page Mode, Byte Writ...

  • 30頁

  • SANYO

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Ordering number : EN4795C
CMOS LSI
LC321664AJ, AM, AT-80
1 MEG (65536 words
脳
16 bits) DRAM
Fast Page Mode, Byte Write
Overview
The LC321664AJ, AM, AT is a CMOS dynamic RAM
operating on a single 5 V power source and having a
65536-word
脳
16-bit 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 compact plastic packages of
SOJ 40-pin, SOP 40-pin and TSOP 44-pin. Refresh rates
are within 4 ms with 256 row address (A0 to A7) selection
and support RAS-only refresh, CAS-before-RAS refresh
and hidden refresh settings.
There are functions such as page mode, read-modify-
write, and byte-write.
Package Dimensions
unit: mm
3200-SOJ40
[LC321664AJ]
Features
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65536-word
脳
16-bit configuration
Single 5 V 鹵10% power supply
All input and output (I/O) TTL compatible
Supports fast page mode, read-modify-write, and byte-
write.
Supports output caching control using early write and
Output Enable (OE) control.
4 ms refresh using 256 refresh cycles
Supports RAS-only refresh, CAS-before-RAS refresh
and hidden refresh.
Packages
SOJ 40-pin (400 mil) plastic package: LC321664AJ
SOP 40-pin (525 mil) plastic package: LC321664AM
TSOP 44-pin (400 mil) plastic package: LC321664AT
RAS access time/column address access time/CAS
access time/ cycle time/power dissipation
SANYO:SOJ40
unit : mm
3195-SOP40
[LC321664AM]
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SANYO:SOP40
Parameter
RAS access time
Column address access time
CAS access time
Cycle time
Power dissipation
(max.)
During operation
During standby
LC321664AJ, AM, AT-80
80 ns
45 ns
30 ns
135 ns
633 mW
5.5 mW (CMOS level)/11 mW (TTL level)
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
32896HA (OT)/O3194TH/81094TH (OT) No. 4795-1/30

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