OKI Semiconductor
FEDS82V16520A-01
MS82V16520A
Mode Set Address Keys
Operation Code
CAS Latency
Burst Type
Burst Length
A8 A7
TM
A6 A5 A4
CL A3
BT
A2 A1 A0
BT = 0
0 0 Mode Setting 0 0 0 Reserved 0 Sequential 0 0 0
1
01
Vender
0 0 1 Reserved 1 Interleave 0 0 1
2
10
Use
010
2
010
4
11
Only
011
3
011
8
Write Burst Length 1 0 0 Reserved
1 0 0 Reserved
A9
Length
1 0 1 Reserved
1 0 1 Reserved
0
Burst
1 1 0 Reserved
1 1 0 Reserved
1
Single Bit
1 1 1 Reserved
1 1 1 Full Page
BT = 1
Reserved
Reserved
4
8
Reserved
Reserved
Reserved
Reserved
POWER ON SEQUENCE
1. With CKE = "H", DQM = "H" and the other inputs in NOP state, turn on the power supply and
start the system clock.
2. After the VCC voltage has reached the specified level, pause for 200 µs or more with the input
kept in NOP state.
3. Issue the precharge all bank command.
4. Apply an Auto-refresh 2 or more times.
5. Enter the mode register command.
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