IS61NLF25672 Datasheet, PDF (2/35 Pages) Integrated Silicon Solution, Inc – 256K x 72, 512K x 36 and 1M x 18 18Mb, FLOW THROUGH (NO WAIT) STATE BUS SRAM

IS61NLF25672/IS61NVF25672
IS61NLF51236/IS61NVF51236
IS61NLF102418/IS61NVF102418
BLOCK DIAGRAM
ISSI ^®
x 72: A [0:17] or
x 36: A [0:18] or
x 18: A [0:19]
ADDRESS
REGISTER
A2-A17 or A2-A18 or A2-A19
MODE
A0-A1
BURST
ADDRESS
COUNTER
A'0-A'1
256Kx72; 512Kx36;
1024Kx18
MEMORY ARRAY
K _DATA-IN
REGISTER
CLK
CKE
CONTROL
LOGIC K
CE
CE2
CE2
} ^ADV
WE
BWŸX
(X=a-h, a-d, or a,b)
OE
ZZ
CONTROL
REGISTER
DQx/DQPx
WRITE
ADDRESS
REGISTER
WRITE
ADDRESS
REGISTER
K _DATA-IN
REGISTER
CONTROL
LOGIC
72, 36 or 18
K
BUFFER
2
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. B
08/26/05