參數(shù)資料
型號(hào)： M2V64S40BTP-7
廠商： Mitsubishi Electric Corporation
英文描述： 64M bit Synchronous DRAM
中文描述： 6400位同步DRAM
文件頁數(shù)： 5/52頁
文件大?。?/td> 674K
代理商： M2V64S40BTP-7
Apr. '99
MITSUBISHI LSIs
MITSUBISHI ELECTRIC
SDRAM (Rev.1.2)
M2V64S20BTP-7,-7L,-8,-8L,-8A,-10,-10L (4-BANK x 4194304-WORD x 4-BIT)
M2V64S30BTP-7,-7L,-8,-8L,-8A,-10,-10L (4-BANK x 2097152-WORD x 8-BIT)
M2V64S40BTP-7,-7L,-8,-8L,-8A,-10,-10L (4-BANK x 1048576-WORD x 16-BIT)
64M bit Synchronous DRAM
5
BASIC FUNCTIONS
The M2V64S20(30,40)BTP provides basic functions, bank (row) activate, burst read / write,
bank (row) precharge, and auto / self refresh.
Each command is defined by control signals of /RAS, /CAS and /WE at CLK rising edge. In
addition to 3 signals, /CS ,CKE and A10 are used as chip select, refresh option, and
precharge option, respectively. To know the detailed definition of commands, please see the
command truth table.
/CS
Chip Select : L=select, H=deselect
/RAS
Command
/CAS
Command
/WE
Command
CKE
Refresh Option @refresh command
A10
Precharge Option @precharge or read/write command
CLK
define basic commands
Activate (ACT) [/RAS =L, /CAS =/WE =H]
ACT command activates a row in an idle bank indicated by BA.
Read (READ) [/RAS =H, /CAS =L, /WE =H]
READ command starts burst read from the active bank indicated by BA. First output data
appears after /CAS latency. When A10 =H at this command, the bank is deactivated after the
burst read (auto-precharge,
READA
).
Write (WRITE) [/RAS =H, /CAS =/WE =L]
WRITE command starts burst write to the active bank indicated by BA. Total data length to be
written is set by burst length. When A10 =H at this command, the bank is deactivated after the
burst write (auto-precharge,
WRITEA
).
Precharge (PRE) [/RAS =L, /CAS =H, /WE =L]
PRE command deactivates the active bank indicated by BA. This command also terminates
burst read /write operation. When A10 =H at this command, both banks are deactivated
(precharge all,
PREA
).
Auto-Refresh (REFA) [/RAS =/CAS =L, /WE =CKE =H]
REFA command starts auto-refresh cycle. Refresh address including bank address are
generated inter-nally. After this command, the banks are precharged automatically.
相關(guān)PDF資料
PDF描述
M2V64S40BTP-7L 64M bit Synchronous DRAM
M2V64S40BTP-8 64M bit Synchronous DRAM
M2V64S40BTP-8A 64M bit Synchronous DRAM
M2V64S40BTP-8L 64M bit Synchronous DRAM
M2V64S40DTP 64M Synchronous DRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M2V64S40BTP-7L 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:64M bit Synchronous DRAM
M2V64S40BTP-8 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:64M bit Synchronous DRAM
M2V64S40BTP-8A 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:64M bit Synchronous DRAM
M2V64S40BTP-8L 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:64M bit Synchronous DRAM
M2V64S40DTP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:64M Synchronous DRAM
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