M66257 Mitsubishi, M66257 Datasheet - Page 4

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

SWITCHING CHARACTERISTICS
TIMING CONDITIONS
Note 1: For 1-line access, the following should be satisfied:
4
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
AC
OH
OEN
ODIS
WCK
WCKH
WCKL
RCK
RCKH
RCKL
DS
DH
RESS
RESH
NRESS
NRESH
WES
WEH
NWES
NWEH
RES
REH
NRES
NREH
r
H
, t
f
Symbol
Symbol
2: Reset the IC after power is turned on.
WE “H” level period < 20ms – 5120 t
RE “H” level period < 20ms – 5120 t
Access time
Output hold time
Output enable time
Output disable time
Write clock (WCK) cycle
Write clock (WCK) “H” pulse width
Write clock (WCK) “L” pulse width
Read clock (RCK) cycle
Read clock (RCK) “H” pulse width
Read clock (RCK) “L” pulse width
Input data setup time to WCK
Input data hold time to WCK
Reset setup time to WCK or RCK
Reset hold time to WCK or RCK
Reset nonselect setup time to WCK or RCK
Reset nonselect hold time to WCK or RCK
WE setup time to WCK
WE hold time to WCK
WE nonselect setup time to WCK
WE nonselect hold time to WCK
RE setup time to RCK
RE hold time to RCK
RE nonselect setup time to RCK
RE nonselect hold time to RCK
Input pulse rise/fall time
Data hold time (Note 1)
(T
a
= 0 ~ 70°C, V
RCK
WCK
(T
a
CC
– RRES “L” level period
– WRES “L” level period
= 0 ~ 70°C, V
= 5V ± 10%, GND = 0V, unless otherwise noted)
Parameter
Parameter
CC
= 5V ± 10%, GND = 0V, unless otherwise noted)
5120
Min.
Min.
25
25
11
11
11
11
MITSUBISHI DIGITAL ASSP
3
3
3
7
3
7
3
7
3
7
3
7
3
7
3
7
3
8-BIT
Limits
Limits
2 LINE MEMORY (FIFO)
Typ.
Typ.
M66257FP
Max.
Max.
18
18
18
20
20
Unit
Unit
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns