tc59lm818dmg TOSHIBA Semiconductor CORPORATION, tc59lm818dmg Datasheet - Page 45

• Manufacturer Part Number: tc59lm818dmg
• Description: 288mbits Network Fcram2 ? 4,194,304-words ? 4 Banks ? 18-bits
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Unidirectional DS/QS mode
Unidirectional DS/Free Running QS mode
Command
BA0, BA1
A14~A0
(output)
(output)
EXTENDED MODE REGISTER SET TIMING (CL = 4, BL = 4)
(input)
(input)
(input)
(input)
From Write operation to Extended Mode Register Set operation.
CLK
CLK
DQ
DQ
DS
QS
DS
QS
Note:
WRA
UA
BA
0
Low
When DQ strobe mode is changed by EMRS, QS output is invalid for l
DLL switch in Extended Mode Register must be set to enable mode for normal operation.
DLL lock-on time is needed after initial EMRS operation. See Power Up Sequence.
Minimum delay from LAL following WRA to RDA of EMRS operation is WL+BL/2.
LAL
LA
1
2
WL+BL/2
3
DESL
D0 D1 D2 D3
D0 D1 D2 D3
4
5
RDA
6
(opcode)
BA0="1"
BA1="0"
MRS
Valid
7
8
9
I
RSC
10
TC59LM818DMG-33,-40
DESL
RSC
= 7 cycles
period.
11
12
2005-10-19 45/57
13
WRA
RDA
UA
BA
14
or
Rev 1.4
LAL
LA
15