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MK31VT464 Datasheet(PDF) 9 Page - OKI electronic componets

Part # MK31VT464
Description  4,194,304 Word x 64 Bit SYNCHRONOUS DYNAMIC RAM MODULE (1BANK)
PDF  11 Pages
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Manufacturer  OKI [OKI electronic componets]
Direct Link  http://www.oki.com
Logo OKI - OKI electronic componets

MK31VT464 Datasheet(HTML) 9 Page - OKI electronic componets

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MK31VT464-10YE (98.07.24)
Page 9/11
FUNCTION TRUTH TABLE (Table1) (1/2)
Current State
/CS
/RAS
/CAS
/WE
BA
ADDR
Action
Idle
H
X
X
X
X
X
NOP
LH
H
H
X
X
NOP
L
H
H
L
BA
X
ILLEGAL
2
L
H
L
X
BA
CA
ILLEGAL
2
L
L
H
H
BA
RA
Row Active
L
L
H
L
BA
A10
NOP
4
L
L
L
H
X
X
Auto-Refresh or Self-Refresh
5
L
L
L
L
L
OP Code
Mode Register write
Row Active
H
X
X
X
X
X
NOP
LH
H
X
X
X
NOP
L
H
L
H
BA
CA, A10
Read
L
H
L
L
BA
CA, A10
Write
L
L
H
H
BA
RA
ILLEGAL
2
L
L
H
L
BA
A10
Precharge
LLL
X
X
X
ILLEGAL
Read
H
X
X
X
X
X
NOP (Continue Row Active after Burst ends)
L
H
H
H
X
X
NOP (Continue Row Active after Burst ends)
L
H
H
L
BA
X
Burst Stop
L
H
L
H
BA
CA, A10
Term Burst, start new Burst Read
3
L
H
L
L
BA
CA, A10
Term Burst, start new Burst Write
3
L
L
H
H
BA
RA
ILLEGAL
2
L
L
H
L
BA
A10
Term Burst, execute Row Precharge
LLL
X
X
X
ILLEGAL
Write
H
X
X
X
X
X
NOP (Continue Row Active after Burst ends)
L
H
H
H
X
X
NOP (Continue Row Active after Burst ends)
L
H
H
L
BA
X
Burst Stop
L
H
L
H
BA
CA, A10
Term Burst, start new Burst Read
3
L
H
L
L
BA
CA, A10
Term Burst, start new Burst Write
3
L
L
H
H
BA
RA
ILLEGAL
2
L
L
H
L
BA
A10
Term Burst, execute Row Precharge
3
LLL
X
X
X
ILLEGAL
Read with
H
X
X
X
X
X
NOP (Continue Burst to End and enter Row Precharge)
Auto Precharge
L
H
H
H
X
X
NOP (Continue Burst to End and enter Row Precharge)
L
H
H
L
BA
X
ILLEGAL
2
L
H
L
H
BA
CA, A10
ILLEGAL
2
L
H
L
L
X
X
ILLEGAL
L
L
H
X
BA
RA, A10
ILLEGAL
2
LLL
X
X
X
ILLEGAL
Write with
H
X
X
X
X
X
NOP (Continue Burst to End and enter Row Precharge)
Auto Precharge
L
H
H
H
X
X
NOP (Continue Burst to End and enter Row Precharge)
L
H
H
L
BA
X
ILLEGAL
2
L
H
L
H
BA
CA, A10
ILLEGAL
2
L
H
L
L
X
X
ILLEGAL
L
L
H
X
BA
RA, A10
ILLEGAL
2
LLL
X
X
X
ILLEGAL



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