IS61NLP204836B Datasheet, PDF (11/39 Pages) Integrated Silicon Solution, Inc – 100 percent bus utilization

 
IS61NLP204836B/IS61NVP/NVVP204836B
IS61NLP409618B/IS61NVP/NVVP409618B 
ASYNCHRONOUS TRUTH TABLE⁽¹⁾
Operation
ZZ
OE
I/O STATUS
Sleep Mode
H
X
High-Z
Read
L
L
L
H
DQ
High-Z
Write
L
X
Din, High-Z
Deselected
L
X
High-Z
Notes:
1. X means "Don't Care".
2. For write cycles following read cycles, the output buffers must be disabled with OE, otherwise data
bus contention will occur.
3. Sleep Mode means power Sleep Mode where stand-by current does not depend on cycle time.
4. Deselected means power Sleep Mode where stand-by current depends on cycle time.
WRITE TRUTH TABLE (x18)
Operation
WE
BWa
BWb
READ
H
X
X
WRITE BYTE a
L
L
H
WRITE BYTE b
L
H
L
WRITE ALL BYTEs
L
L
L
WRITE ABORT/NOP
L
H
H
Notes:
1. X means "Don't Care".
2. All inputs in this table must beet setup and hold time around the rising edge of CLK.
Integrated Silicon Solution, Inc. — www.issi.com
11
Rev. A
8/4/2014