ic42s16400a ETC-unknow, ic42s16400a Datasheet - Page 24

• Manufacturer Part Number: ic42s16400a
• Description: 1m X 16bit X 4 Banks 64-mbit Sdram
• Manufacturer: ETC-unknow

IC42S16400A
READ to WRITE Command Interval
24
Command
CLK
DQM
DQ
DQM
Command
CLK
Command
DQ
CLK
DQM
DQ
T0
Read
Hi-Z
T0
T0
T1
Read
Read
1 cycle
T1
T1
T2
D0
Write
Q0
T2
T2
T3
D1
Q1
T3
T3
T4
D2
Q2
Q2
T4
T4
T5
necessary
D3
Hi-Z is
necessary
Hi-Z is
T5
T5
T6
Write
D0
Write
example: Burst length=4, CAS latency=3
D0
T6
T6
T7
Integrated Circuit Solution Inc.
D1
Burst length=8, CAS latency=2
D1
T7
T7
T8
CAS latency=2
D2
D2
T8
T8
DR039-0A 02/19/2004
T9