IS61QDPB44M18A Datasheet, PDF (11/33 Pages) Integrated Silicon Solution, Inc – 2Mx36 and 4Mx18 configuration available

IS61QDPB44M18A/A1/A2
IS61QDPB42M36A/A1/A2
Timing Reference Diagram for Truth Table
The Timing Reference Diagram for Truth Table is helpful in understanding the Clock and Write Truth Tables, as it
shows the cycle relationship between clocks, address, data in, data out, and control signals. Read command is issued
at the beginning of cycle “t”. Write command is issued at the beginning of cycle “t+1”.
Cycle
t
t+1
t+2
t+3
t+4
t+5
K Clock
K# Clock
R#
W#
BW_x#
Address
A
Data-In
Data-Out
QVLD
CQ Clock
CQ# Clock
B
DB
2.5 Cycle Read Latency
tQVLD
DB+1 DB+2 DB+3
QA
tCHQV
QA+1
QA+2
tQVLD
QA+3
Integrated Silicon Solution, Inc.- www.issi.com
Rev. E
11
07/07/2014