参数资料
型号: NT5SV8M16FT-75BI
厂商: NANYA TECHNOLOGY CORP
元件分类: DRAM
英文描述: 8M X 16 SYNCHRONOUS DRAM, 5.4 ns, PDSO54
封装: 0.400 MM, PLASTIC, TSSOP2-54
文件页数: 21/65页
文件大小: 739K
代理商: NT5SV8M16FT-75BI
NT5SV8M16FS / NT5SV8M16FT
128Mb Synchronous DRAM
REV 1.4
08/2009
28
NANYA TECHNOLOGY CORPORATION
NANYA reserves the right to change products and specifications without notice.
Clock Suspend Mode
During normal access mode, CKE is held high, enabling the clock. When CKE is registered low while at least one of the banks
is active, Clock Suspend Mode is entered. The Clock Suspend mode deactivates the internal clock and suspends or “freezes”
any clocked operation that was currently being executed. There is a one-clock delay between the registration of CKE low and
the time at which the SDRAM’s operation suspends. While in Clock Suspend mode, the SDRAM ignores any new commands
that are issued. The Clock Suspend mode is exited by bringing CKE high. There is a one clock cycle delay from when CKE
returns high to when Clock Suspend mode is exited.
When the operation of the SDRAM is suspended during the execution of a Burst Read operation, the last valid data output onto
the DQ pins will be actively held valid until Clock Suspend mode is exited.
If Clock Suspend mode is initiated during a burst write operation, the input data is masked and is ignored until the Clock Sus-
pend mode is exited.
Clock Suspend during a Read Cycle
Clock Suspend during a Write Cycle
CK
T0
T2
T1
T3
T4
T5
T6
T7
T8
COMMAND
NOP
READ A
NOP
CKE
DQs
DOUT A0
DOUT A2
DOUT A1
: “H” or “L”
A one clock delay before
suspend operation starts
A one clock delay to exit
the Suspend command
DOUT element at the DQs when the
suspend operation starts is held valid
(Burst Length = 4, CAS Latency = 2)
CK
T0
T2
T1
T3
T4
T5
T6
T7
T8
COMMAND
NOP
WRITE A
NOP
CKE
DQs
DIN A2
DIN A3
: “H” or “L”
A one clock delay before
suspend operation starts
A one clock delay to exit
the Suspend command
DIN is masked during the Clock Suspend Period
DIN A1
DIN A0
(Burst Length = 4, CAS Latency = 2)
相关PDF资料
PDF描述
NT5TU64M16DG-3C 64M X 16 DDR DRAM, 0.45 ns, PBGA84
NTA2425E
NTA2425F
NTA2410-10
NTD2410F
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