参数资料
型号: T431616D
厂商: Electronic Theatre Controls, Inc.
英文描述: 1M x 16 SDRAM 512K x 16bit x 2Banks Synchronous DRAM
中文描述: 100万× 16内存为512k × 16Bit的X 2Banks同步DRAM
文件页数: 73/74页
文件大小: 781K
代理商: T431616D
TE
CH
tm
T431616D/E
TM Technology Inc. reserves the right
P. 8
Publication Date: FEB. 2007
to change products or specifications without notice.
Revision: A
CLK
DQM
COM M A ND
CAS# latency=1
tCK1, DQ's
T0
T1
T2T3
T4T5
T6T7
T8
NOP
READ A
WRITE A
NOP
BANKA
ACTIVATE
DIN A0
DIN A1
DIN A2
DIN A3
DIN A0
DIN A1
DIN A2
DIN A3
Must be Hi-Z before
the Write Command
1 Clk Interval
CAS# latency=2
tCK2, DQ's
: "H" or "L"
Read to Write Interval (Burst Length
≥≥≥≥ 4, CAS# Latency = 1, 2)
CLK
DQM
COM M A ND
CAS# latency=1
tCK1, DQ's
T0
T1
T2T3
T4T5
T6T7
T8
NOP
READ A
NOP
WRITE B
NOP
DIN B0
DIN B1
DIN B2
DIN B3
DIN B0
DIN B1
DIN B2
DIN B3
Must be Hi-Z before
the Write Command
CAS# latency=2
tCK2, DQ's
NOP
DOUT A0
: "H" or "L"
Read to Write Interval (Burst Length
≥≥≥≥ 4, CAS# Latency = 1, 2)
A read burst without the auto precharge function may be interrupted by a BankPrecharge/ PrechargeAll
command to the same bank. The following figure shows the optimum time that BankPrecharge/ PrechargeAll
command is issued in different CAS# latency.
CLK
C O MMA N D
CAS# la tency=2
tCK2 , DQ's
T0
T1
T2T3
T4T5
T6
T7
T8
READ A
NOP
Ac tiva te
NOP
Precharge
CAS# la tency=3
tCK3 , DQ's
DOUT A0
DOUT A1
DOUT A2
DOUT A3
DOUT A0
DOUT A1
DOUT A2
DOUT A3
DOUT A0
DOUT A1
DOUT A2
DOUT A3
ADDR ESS
CAS# latency=1
tCK1, DQ's
tRP
Bank,
Col A
Bank (s)
Bank,
Row
Read to Precharge (CAS# Latency = 1, 2, 3)
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