MSC23S2640E 데이터 시트보기 (PDF) - Oki Electric Industry
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MSC23S2640E Datasheet PDF : 11 Pages
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MSC23S2640E-8BS8 (98.08.19)
MODE SET ADDRESS KEYS
/CAS Latency
A6 A5 A4
CL
0 0 0 Reserved
0 0 1 Reserved
010
2
011
3
1 0 0 Reserved
1 0 1 Reserved
1 1 0 Reserved
1 1 1 Reserved
Burst Type
Burst Length
A3
BT
A2 A1 A0
BT=0
0 Sequential 0 0 0
1
1 Interleave 0 0 1
2
010
4
011
8
1 0 0 Reserved
1 0 1 Reserved
1 1 0 Reserved
1 1 1 Full Page
BT=1
1
2
4
8
Reserved
Reserved
Reserved
Reserved
Note: A7, A8, A9, A10 and A11 should stay "L" during mode set cycle.
POWER ON SEQUENCE
1. With 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 200µs or more
with the input kept in NOP state.
3. Issue the precharge all bank command.
4. Apply a CBR auto-refresh eight or more times.
5. Enter the mode register setting command.
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