MITSUBISHI LSIs
M5M5V4R01J-12,-15
4194304-BIT (4194304-WORD BY 1-BIT) CMOS STATIC RAM
FUNCTION
The operation mode of the M5M5V4R01J is determined by a
combination of the device control inputs S, W and OE. Each
mode is summarized in the function table.
A write cycle is executed whenever the low level W overlaps
with the low level S. The address must be set-up before the
write cycle and must be stable during the entire cycle.
The data is latched into a cell on the trailing edge of W or S,
whichever occurs first, requiring the set-up and hold time
relative to these edge to be maintained. The output enable
input OE directly controls the output stage. Setting the OE at
a high level, the output stage is in a high impedance state,
and the data bus
A read cycle is excuted by setting W at a high level and OE
at a low level while S are in an active state (S=L).
When setting S at high level, the chip is in a non-selectable
mode in which both reading and writing are disable. In this
mode, the output stage is in a high-impedance state, allowing
OR-tie with other chips and memory expansion by S.
Signal-S controls the power-down feature. When S goes
high, power dissapation is reduced extremely. The access time
from S is equivalent to the address access time.
The RAM works with an organization of 4194304-word by 1
bit,when B1/B4 is low of floating. And an organization of 10485
76-word by 4bit is also obtained for reducing the test time,
when B1/B4 is high.
contention problem in the write cycle is eliminated.
FUNCTION TABLE
Mode
Non selection
Write
D
High-impedance
Din
Q
Icc
S
H
L
W
X
L
OE
X
Stand by
High-impedance
High-impedance
Active
Active
Active
X
Read
High-impedance
High-impedance
L
L
H
H
L
Dout
High-impedance
H
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
Conditions
With respect to GND
Ta=25 C
Ratings
-2.0* ~ 4.6
Unit
V
Symbol
Vcc
-2.0* ~ VCC+0.5
-2.0* ~ VCC+0.5
VI
Input voltage
V
V
VO
Output voltage
Pd
Power dissipation
Operating temperature
Storage temperature(bias)
Storage temperature
1000
mW
C
Topr
0 ~ 70
Tstg(bias)
-10 ~ 85
-65 ~ 150
C
T
stg
C
*Pulse width ≤ 20ns, In case of DC:-0.5V
(Ta=0 ~ 70 C, Vcc=3.3V +10% unless otherwise noted)
DC ELECTRICAL CHARACTERISTICS
-5%
Limits
Condition
Symbol
Parameter
Unit
Typ
Max
Min
VIH
VIL
VOH
VOL
I I
V
V
V
V
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Input current
Vcc+0.3
0.8
2.2
-0.3
2.0
IOH =-4mA
IOL= 8mA
VI = 0~Vcc
0.4
2
µA
VI (S)= VIH
VO= 0~Vcc
µA
I OZ
Output current in off-state
10
12ns cycle
15ns cycle
160
VI (S)= VIL
other inputs VIH or VIL
Output-open(duty 100%)
Active supply current
(TTL level)
AC
DC
mA
I CC1
150
100
75
90
12ns cycle
15ns cycle
Stand by current
(TTL level)
AC
DC
mA
mA
I CC2
70
VI (S)= VIH
50
VI (S)= Vcc≥0.2V
other inputs VI≤0.2V
or VI≥Vcc-0.2V
I CC3 Stand by current
1
10
MITSUBISHI
ELECTRIC
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