M66258 Mitsubishi, M66258 Datasheet - Page 4

• Manufacturer Part Number: M66258
• Description: 8192 x 8-BIT LINE MEMORY
• Manufacturer: Mitsubishi

4
SWITCHING CHARACTERISTICS (Ta=0 – 70 C, Vcc=5V 10%, GND=0V unless otherwise noted)
TIMING REQUIREMENTS (Ta=0 – 70 C, Vcc=5V 10%, GND=0V unless otherwise noted)
Note 1: For 1 line access, the following conditions must be satisfied:
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
Symbol
Symbol
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
2: Perform reset operation after turning on power supply.
f
WE high-level period
RE high-level period
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 set up time for WCK
Input data hold time for WCK
Reset set up time for WCK/RCK
Reset hold time for WCK/RCK
Reset non-selection set up time for WCK/RCK
Reset non-selection hold time for WCK/RCK
WE set up time for WCK
WE hold time for WCK
WE non-selection set up time for WCK
WE non-selection hold time for WCK
RE set up time for RCK
RE hold time for RCK
RE non-selection set up time for RCK
RE non-selection hold time for RCK
Input pulse up/down time
Data hold time (Note 1)
20 ms - 8192 • t
20 ms - 8192 • t
RCK
WCK
- RRES low-level period
- WRES low-level period
Parameter
Parameter
8192 x 8-BIT LINE MEMORY
Min.
Min.
20
20
3
3
3
8
8
8
8
4
3
4
3
4
3
4
3
4
3
4
3
4
3
M66258FP
Limits
Limits
Typ.
Typ.
Max.
Max.
16
16
16
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