參數(shù)資料
型號: VG36128161BT-7H
廠商: VANGUARD INTERNATIONAL SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 8M X 16 SYNCHRONOUS DRAM, 5.4 ns, PDSO54
封裝: 0.400 INCH, PLASTIC, TSOP2-54
文件頁數(shù): 34/69頁
文件大小: 1335K
代理商: VG36128161BT-7H
Document :1G5-0183
Rev.5
Page 4
VIS
VG36128401B / VG36128801B / VG36128161B
CMOS Synchronous Dynamic RAM
Symbol Description
Symbol
Input
Function
CLK
Input
Maste Clock: Other inputs signals are referenecd to the CLK rising edge.
CKE
Input
Clock Enable: CKE HIGH activates, and CKE LOW deactivates internal clock signals,
device input buffers and output drivers. Deactivating the clock provides PRECHARGE
POWER-DOWN and SELF REFRESH operation (all banks idle), or ACTIVE POWER-
DOWN (row ACTIVE in any bank).
/CS
Input
Chip Select: /CS enables (registered LOW) and disables (registered HIGH) the com-
mand decoder. All commands are masked when /CS is registered HIGH. /CS provides
for external bank selection on systems with multiple banks. /CS is considered part of
the command code.
/RAS, /CAS,
/WE
Input
Command Inputs: /RAS, /CAS and /WE (along with /CS) define the command being
entered.
A0 - A13
Input
Address Inputs: Provide the row address for ACTIVE commands, and the column
address and AUTO PRECHARGE bit for READ/WRITE commands, to select one loca-
tion out of the memory array in the respective bank.
The row address is specified by A0-A11.
The column address is specified by A0-A9, A11 (X4) / A0-A9 (X8) / A0-A8 (X16)
BA0,BA1
Input
Bank Address Inputs: BA0 and BA1 define to which bank an ACTIVE, READ, WRITE or
PRECHARGE command is being applied.
DQM, UDQM ,
LDQM
Input
Din Mask / Output Disable: When DQM is high in burst write, Din for the current cycle is
masked. When DQM is is high in burst read, Dout is disable at the next but one cycle.
DQ0 - DQ15
I/O
Data Input / Output: Data bus.
VDD, VSS
Supply
Power Supply for the memory array and peripheral circuitry.
VDDQ, VSSQ
Supply
Power Supply are supplied to the output buffers only.
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