K7R641884M SAMSUNG [Samsung semiconductor], K7R641884M Datasheet - Page 14

• Manufacturer Part Number: K7R641884M
• Description: 2Mx36 & 4Mx18 QDRTM II b4 SRAM
• Manufacturer: SAMSUNG [Samsung semiconductor]

K7R643684M
K7R641884M
TIMING WAVE FORMS OF READ, WRITE AND NOP
K
K
SA
W
R
D(Data In)
D(Data Out)
C
C
Note: 1. If address A3=A2, data Q3-1=D2-1, data Q3-2=D2-2 , data Q3-3=D2-3, data Q3-4=D2-4
2.BWx assumed active.
Write data is forwarded immediately as read results.
A1
READ
A2
WRITE
Q1-1
D2-1
A3
READ
- 14 -
2Mx36 & 4Mx18 QDR
Q1-2
D2-2
Q1-3
D2-3
A4
WRITE
Q1-4
D2-4
Q3-1
D4-1
NOP
Don t Care
TM
Q3-2
D4-2
Preliminary
II b4 SRAM
D4-3
Q3-3
Undefined
Oct. 2004
Rev 0.5
NOP