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W986432DH Datasheet

  • W986432DH

  • 512K ⅴ 4 BANKS ⅴ 32 BITS SDRAM

  • 83.36KB

  • 11頁(yè)

  • WINBOND

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PRELIMINARY W986432DH
512K
脳
4 BANKS
脳
32 BITS SDRAM
GENERAL DESCRIPTION
W986432DH is a high-speed synchronous dynamic random access memory (SDRAM), organized as
512K words
脳
4 banks
脳
32 bits. Using pipelined architecture and 0.175
碌m
process technology,
W986432DH delivers a data bandwidth of up to 800M bytes per second (5). For different application,
W986432DH is sorted into four speed grades: -5, -55, -6, -7,-8.
Accesses to the SDRAM are burst oriented. Consecutive memory location in one page can be
accessed at a burst length of 1, 2, 4, 8 or full page when a bank and row is selected by an ACTIVE
command. Column addresses are automatically generated by the SDRAM internal counter in burst
operation. Random column read is also possible by providing its address at each clock cycle. The
multiple bank nature enables interleaving among internal banks to hide the precharging time.
By having a programmable Mode Register, the system can change burst length, latency cycle,
interleave or sequential burst to maximize its performance. W986432DH is ideal for main memory in
high performance applications.
FEATURES
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3.3V 鹵0.3V power supply
524288 words
脳
4 banks
脳
32 bits organization
Auto Refresh and Self Refresh
CAS latency: 2 and 3
Burst Length: 1, 2, 4, 8, and full page
Sequential and Interleave burst
Burst read, single write operation
Byte data controlled by DQM
Power-down Mode
Auto-precharge and controlled precharge
4K refresh cycles/64 mS
Interface: LVTTL
Packaged in 86-pin TSOP II, 400 mil - 0.50
-1-
Publication Release Date: May 2000
Revision A0

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