M66257 Mitsubishi, M66257 Datasheet - Page 8

• Manufacturer Part Number: M66257
• Description: 5120 x 8-BIT x 2 LINE MEMORY (FIFO)
• Manufacturer: Mitsubishi

8
• Note at WCK stop
Input data Dn of n cycle is read at the rising edge after WCK of n cycle. Writing operation starts in the “L” period of WCK of n+1
cycle and ends at the rising edge after n+1 cycle.
To stop reading write data at n cycle, input WCK for up to the rising edge of n+1 cycle.
When the cycle next to n cycle is a disable cycle, input of WCK for a cycle is required after a disable cycle as well.
WCK
WE
D
n
n cycle
t
WCK
t
DS
Period of writing data (n)
into memory
(n)
t
DH
n+1 cycle
n cycle
t
NWES
t
DS
Period of writing data (n)
into memory
(n)
t
DH
5120
MITSUBISHI DIGITAL ASSP
8-BIT
Disable cycle
WRES = “H”
2 LINE MEMORY (FIFO)
M66257FP