EtronTech
1M x 16 SDRAM
EM636165
CLK
CKE
CS#
RAS#
CAS#
WE#
A11
A10
A0-A9
DQM
DQ Hi-Z
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10
tCK2
Clock min.
Address Key
tRP
PrechargeAll Mode Register Any
Set Command Command
Mode Register Set Cycle (CAS# Latency = 1, 2, 3)
The mode register is divided into various fields depending on functionality.
• Burst Length Field (A2~A0)
This field specifies the data length of column access using the A2~A0 pins and selects the
Burst Length to be 1, 2, 4, 8, or full page.
A2
A1
A0 Burst Length
0
0
0
1
0
0
1
2
0
1
0
4
0
1
1
8
1
0
0
Reserved
1
0
1
Reserved
1
1
0
Reserved
1
1
1
Full Page
Preliminary
13
Rev. 2.7 Mar. 2006