MITSUBISHI LSIs
M5M5Y5636TG – 25,22,20
18874368-BIT(524288-WORD BY 36-BIT) NETWORK SRAM
12
MITSUBISHI
ELECTRIC
Advanced Information
M5M5Y5636TG REV.0.0
TRUTH TABLE
CLK
E1#
(t
n
)
E
(t
n
)
ADV
(t
n
)
W#
(t
n
)
BW#
(t
n
)
Previous
Operation
Current
Operation
DQ/CQ
(t
n
)
DQ/CQ
(t
n+1
)
DQ/CQ
(t
n+2
)
L->H
X
X
H
X
F
X
T
X
L
H
L
H
X
X
X
X
X
X
X
X
X
Bank Deselect
***
High-Z
---
---
---
---
L->H
Bank Deselect
X
Bank Deselect (Continue)
High-Z
***
High-Z
L->H
Deselect
High-Z / CQ
L->H
Deselect
Deselect (Continue)
Write
Loads new address
Stores DQx if BWx#=LOW
Write (Abort)
Loads new address
No data stored
Write Continue
Increments address by 1
Stores DQx if BWx#=LOW
Write Continue (Abort)
Increments address by 1
No data stored
Read
Loads new address
Read Continue
Increments address by 1
High-Z / CQ
High-Z / CQ
L->H
L
T
L
L
T
X
***
***
D
n
/ CQ
(t
n
)
L->H
L
T
L
L
F
X
***
***
High-Z / CQ
L->H
X
X
H
X
T
Write
***
D
n-1
/ CQ
(t
n-1
)
D
n
/ CQ
(t
n
)
L->H
X
X
H
X
F
Write
***
D
n-1
/ CQ
(t
n-1
)
High-Z / CQ
L->H
L
T
L
H
X
X
***
Q
n
/ CQ
(t
n
)
Q
n
/ CQ
(t
n
)
---
L->H
X
X
H
X
X
Read
Q
n-1
/ CQ
(t
n-1
)
---
Note11. If E2=EP2 and E3=EP3 then E=”T” else E=”F”.
Note12. If one or more BWx#=LOW then BW#=”T” else BW#=”F”.
Note13. “H” = input “HIGH”; “L” = input “LOW”; “X” = input “don’t care”; “T” = input “true”; “F” = input “false”.
Note14. “ *** “ = indicates that the DQ input requirement / output state and CQ output state are determined by the previous operation.
Note15. “ --- “ = indicates that the DQ input requirement / output state and CQ output state are determined by the next operation.
Note16. DQs are tri-stated in response to Bank Deselect, Deselect and Write commands, one full cycle after the command is sampled.
Note17. CQs are tri-stated in response to Bank Deselect commands only, one full cycle after the command is sampled.
Note18. Up to three (3) Continue operations may be initiated after a Read or Write operation is initiated to burst transfer up to four (4)
distinct pieces of data per single external address input. If a fourth (4) Continue operation is initiated, the internal address wraps
back to the initial external (base) address.
WRITE TRUTH TABLE
W#
BWa#
BWb#
BWc#
BWd#
Function
H
L
L
L
L
L
L
X
L
H
H
H
L
H
X
H
L
H
H
L
H
X
H
H
L
H
L
H
X
H
H
H
L
L
H
Read
Write Byte “a”
Write Byte “b”
Write Byte “c”
Write Byte “d”
Write All Bytes
Write Abort / NOP
Note19. X means "don't care". H means logic HIGH. L means logic LOW.
Note20. All inputs must meet setup and hold times around the rising edge (LOW to HIGH) of CLK.