Dear customers,
About the change in the name such as "Oki Electric Industry Co. Ltd." and
"OKI" in documents to OKI Semiconductor Co., Ltd.
The semiconductor business of Oki Electric Industry Co., Ltd. was succeeded to OKI
Semiconductor Co., Ltd. on October 1, 2008.
Therefore, please accept that although
the terms and marks of "Oki Electric Industry Co., Ltd.", “Oki Electric”, and "OKI"
remain in the documents, they all have been changed to "OKI Semiconductor Co., Ltd.".
It is a change of the company name, the company trademark, and the logo, etc. , and
NOT a content change in documents.
October 1, 2008
OKI Semiconductor Co., Ltd.
550-1 Higashiasakawa-cho, Hachioji-shi, Tokyo 193-8550, Japan
http://www.okisemi.com/en/
OKI
Semiconductor
MD51V65405E
DESCRIPTION
FEDD51V65405E-03
Issue Date: Jul. 19, 2005
16,777,216-Word
×
4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO
The MD51V65405E is a 16,777,216-word
×
4-bit dynamic RAM fabricated in Oki’s silicon-gate CMOS
technology. The MD51V65405E achieves high integration, high-speed operation, and low-power
consumption because Oki manufactures the device in a quadruple-layer polysilicon/double-layer metal
CMOS process. The MD51V65405E is available in a 32-pin plastic SOJ or 32-pin plastic TSOP.
FEATURES
· 16,777,216-word
×
4-bit configuration
·
Single 3.3V power supply,
±0.3V
tolerance
·
Input : LVTTL compatible, low input capacitance
·
Output : LVTTL compatible, 3-state
·
Refresh :
RAS
only refresh
: 4096 cycles/64ms
CAS
before
RAS
refresh, hidden refresh
: 4096 cycles/64ms
·
Fast page mode with EDO, read modify write capability
·
CAS
before
RAS
refresh, hidden refresh,
RAS-only
refresh capability
· Packages
32-pin 400mil plastic SOJ
(
SOJ32-P-400-1.27
)
(Product : MD51V65405E-xxJA)
32-pin 400mil plastic TSOP
(
TSOPII32-P-400-1.27-K
)
(Product : MD51V65405E-xxTA)
xx indicates speed rank.
PRODUCT FAMILY
Access Time (Max.)
Family
t
RAC
50ns
60ns
t
AA
25ns
30ns
t
CAC
13ns
15ns
t
OEA
13ns
15ns
Cycle Time
(Min.)
84ns
104ns
Power Dissipation
Operating
(Max.)
504mW
432mW
Standby
(Max.)
1.8mW
MD51V65405E
1/15
FEDD51V65405E-03
OKI
Semiconductor
MD51V65405E
PIN CONFIGURATION (TOP VIEW)
V
CC
1
DQ1
2
DQ2
3
NC 4
NC 5
NC 6
NC 7
WE
8
RAS
9
A0
10
A1
11
A2
12
A3
13
A4
14
A5
15
V
CC
16
32-Pin Plastic
SOJ
V
SS
DQ4
DQ3
NC
NC
NC
CAS
OE
NC
A11
A10
A9
20
A8
19
A7
18
A6
17
V
SS
32
31
30
29
28
27
26
25
24
23
22
21
V
CC
1
DQ1
2
DQ2
3
NC 4
NC 5
NC 6
NC 7
WE
8
RAS
9
A0
10
A1
11
A2
12
A3
13
A4
14
A5
15
V
CC
16
V
SS
DQ4
DQ3
NC
NC
NC
CAS
OE
NC
A11
A10
A9
20
A8
19
A7
18
A6
17
V
SS
32
31
30
29
28
27
26
25
24
23
22
21
32-Pin Plastic TSOP
(K Type)
Pin Name
A0–A11
RAS
CAS
DQ1–DQ4
OE
WE
V
CC
V
SS
NC
Function
Address Input
Row Address Strobe
Column Address Strobe
Data Input/Data Output
Output Enable
Write Enable
Power Supply (3.3V)
Ground (0V)
No Connection
Note : The same power supply voltage must be provided to every V
CC
pin, and the same GND voltage level must
be provided to every V
SS
pin.
2/15
FEDD51V65405E-03
OKI
Semiconductor
MD51V65405E
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Parameter
Voltage on Any Pin Relative to V
SS
Voltage V
CC
Supply Relative to V
SS
Short Circuit Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
IN
, V
OUT
V
CC
I
OS
P
D*
T
opr
T
stg
Value
–0.5 to V
CC
+0.5
–0.5 to 4.6
50
1
0 to 70
–55 to 150
Unit
V
V
mA
W
°C
°C
*: Ta = 25°C
RECOMMENDED OPERATING CONDITIONS
(Ta = 0 to 70°C)
Parameter
Power Supply Voltage
Input High Voltage
Input Low Voltage
Symbol
V
CC
V
SS
V
IH
V
IL
Min.
3.0
0
2.0
−
0.3
*2
Typ.
3.3
0
Max.
3.6
0
V
CC
+ 0.3
0.8
*1
Unit
V
V
V
V
Notes: *1. The input voltage is V
CC
+ 1.0V when the pulse width is less than 20ns (the pulse width is with respect
to the point at which V
CC
is applied).
*2. The input voltage is V
SS
−
1.0V when the pulse width is less than 20ns (the pulse width respect to the
point at which V
SS
is applied).
PIN CAPACITANCE
(Vcc = 3.3V
±
0.3V, Ta = 25°C, f = 1 MHz)
Parameter
Input Capacitance (A0 – A11)
Input Capacitance
(RAS,
CAS, WE, OE)
Output Capacitance (DQ1 – DQ4)
Symbol
C
IN1
C
IN2
C
I/O
Min.
—
—
—
Max.
5
7
7
Unit
pF
pF
pF
3/15
FEDD51V65405E-03
OKI
Semiconductor
MD51V65405E
DC CHARACTERISTICS
(V
CC
= 3.3V
±
0.3V, Ta = 0 to 70°C)
MD51V65405
E-50
Min.
Output High Voltage
Output Low Voltage
Input Leakage
Current
Output Leakage
Current
Average Power
Supply Current
(Operating)
Power Supply
Current
(Standby)
Average Power
Supply Current
(RAS-only Refresh)
Power Supply
Current
(Standby)
Average Power
Supply Current
(CAS before
RAS
Refresh)
Average Power
Supply Current
(Fast Page Mode)
V
OH
V
OL
I
OH
=
−2.0mA
I
OL
= 2mA
0V
≤
V
I
≤
V
CC
+0.3V;
I
LI
All other pins not
under test = 0V
DQ disable
0V
≤
V
O
≤
V
CC
RAS, CAS
cycling,
t
RC
= Min.
RAS, CAS
= V
IH
I
CC2
RAS, CAS
≥
V
CC
−
0.2V
RAS
cycling,
I
CC3
CAS
= V
IH
,
t
RC
= Min.
RAS
= V
IH
,
I
CC5
CAS
= V
IL
,
DQ = enable
RAS
= cycling,
CAS
before
RAS
RAS
= V
IL
,
I
CC7
CAS
cycling,
t
HPC
= Min.
140
120
mA
1,3
5
5
mA
1
140
120
mA
1,2
−
10
10
−
10
10
µA
2.4
0
Max.
V
CC
0.4
MD51V65405
E-60
Min.
2.4
0
Max.
V
CC
0.4
V
V
Parameter
Symbol
Condition
Unit
Note
I
LO
−
10
10
−
10
10
µA
I
CC1
140
120
mA
1,2
1
0.5
1
mA
0.5
1
I
CC6
140
120
mA
1,2
Notes: 1. I
CC
Max. is specified as I
CC
for output open condition.
2. The address can be changed once or less while
RAS
= V
IL
.
3. The address can be changed once or less while
CAS
= V
IH
.
4/15
电源技术