K7R161884B-FC16 SAMSUNG [Samsung semiconductor], K7R161884B-FC16 Datasheet - Page 7

• Manufacturer Part Number: K7R161884B-FC16
• Description: 512Kx36 & 1Mx18 QDR II b4 SRAM
• Manufacturer: SAMSUNG [Samsung semiconductor]

K7R163684B
K7R161884B
Notes: 1. Internal burst counter is fixed as 2-bit linear, i.e. when first address is A0+0, next internal burst address is A0+1.
READ
D count=2
3. Read and write state machine can be active simulateneously.
4. State machine control timing sequence is controlled by K.
2. "READ" refers to read active status with R=Low, "READ" refers to read inactive status with R=high. "WRITE" and "WRITE" are the same case.
READ
D count=1
ALWAYS
D count=D count+1
READ ADDRESS
READ ADDRESS
INCREMENT
LOAD NEW
READ NOP
DDR READ
D count=0
READ
READ
D count=2
ALWAYS
STATE DIAGRAM
READ
POWER-UP
512Kx36 & 1Mx18 QDR
- 7 -
WRITE
WRITE
D count=2
ALWAYS
WRITE
D count=D count+1
WRITE ADDRESS
WRITE ADDRESS
INCREMENT
WRITE NOP
DDR WRITE
LOAD NEW
D count=0
WRITE
D count=1
ALWAYS
TM
II b4 SRAM
WRITE
D count=2
July. 2004
Rev 3.1