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MSM54V16282 Datasheet

  • MSM54V16282

  • 262,144-Word x 16-Bit Multiport DRAM

  • 39頁

  • OKI

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E2L0026-17-Y1
隆 Semiconductor
MSM54V16282
隆 Semiconductor
262,144-Word
樓
16-Bit Multiport DRAM
This version: Jan. 1998
MSM54V16282
Previous version: Dec. 1996
DESCRIPTION
The MSM54V16282 is a 4-Mbit CMOS multiport DRAM composed of a 262,144-word by 16-bit
dynamic RAM, and a 512-word by 16-bit SAM. Its RAM and SAM operate independently and
asynchronously.
It supports three types of operations: random access to RAM port, high speed serial access to
SAM port, and bidirectional transfer of data between any selected row in the RAM port and the
SAM port. In addition to the conventional multiport DRAM operating modes, the MSM54V16282
features block write and flash write functions on the RAM port, and a split data transfer
capability on the SAM port. The SAM port requires no refresh operation because it uses static
CMOS flip-flops.
FEATURES
鈥?Single power supply: 3.3 V
鹵0.3
V
鈥?/div>
RAS
only refresh
鈥?Full TTL compatibility
鈥?/div>
CAS
before
RAS
refresh
鈥?Multiport organization
鈥?/div>
CAS
before
RAS
self-refresh
RAM : 256K word
樓
16 bits
鈥?Hidden refresh
SAM : 512 word
樓
16 bits
鈥?Serial read/write
鈥?Fast page mode
鈥?512 tap location
鈥?Write per bit
鈥?Bidirectional data transfer
鈥?Byte write
鈥?Split transfer
鈥?Masked flash write
鈥?Masked write transfer
鈥?Masked block write (8 columns)
鈥?Refresh: 512 cycles/8 ms
鈥?Package options:
64-pin 525 mil plastic SSOP
(SSOP64-P-525-0.80-K) (Product : MSM54V16282-xxGS-K)
70/64-pin 400 mil plastic TSOP (Type II)(TSOPII70/64-P-400-0.65-K)(Product : MSM54V16282-xxTS-K)
xx indicates speed rank.
PRODUCT FAMILY
Family
MSM54V16282-60
MSM54V16282-70
Access Time
RAM
60 ns
70 ns
SAM
18 ns
20 ns
Cycle Time
RAM
120 ns
140 ns
SAM
22 ns
22 ns
Power Dissipation
Operating
160 mA
150 mA
Standby
8 mA
8 mA
1/39

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