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/
E2G0026-17-41
¡ Semiconductor
¡ Semiconductor
MSM514260C/CSL
DESCRIPTION
This
MSM514260C/CSL
version: Jan. 1998
Previous version: May 1997
262,144-Word
¥
16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
The MSM514260C/CSL is a 262,144-word
¥
16-bit dynamic RAM fabricated in Oki's silicon-gate
CMOS technology. The MSM514260C/CSL achieves high integration, high-speed operation, and
low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/
single-layer metal CMOS process. The MSM514260C/CSL is available in a 40-pin plastic SOJ or 44/
40-pin plastic TSOP. The MSM514260CSL (the self-refresh version) is specially designed for lower-
power applications.
FEATURES
• 262,144-word
¥
16-bit configuration
• Single 5 V power supply,
±10%
tolerance
• Input
: TTL compatible, low input capacitance
• Output : TTL compatible, 3-state
• Refresh : 512 cycles/8 ms, 512 cycles/128 ms (SL version)
• Fast page mode, read modify write capability
•
CAS
before
RAS
refresh, hidden refresh,
RAS-only
refresh capability
•
CAS
before
RAS
self-refresh capability (SL version)
• Package options:
40-pin 400 mil plastic SOJ
(SOJ40-P-400-1.27)
(Product : MSM514260C/CSL-xxJS)
44/40-pin 400 mil plastic TSOP
(TSOPII44/40-P-400-0.80-K) (Product : MSM514260C/CSL-xxTS-K)
xx indicates speed rank.
PRODUCT FAMILY
Family
MSM514260C/CSL-50
MSM514260C/CSL-60
MSM514260C/CSL-70
Access Time (Max.)
t
RAC
t
AA
t
CAC
t
OEA
50 ns 25 ns 15 ns 15 ns
60 ns 30 ns 15 ns 15 ns
70 ns 35 ns 20 ns 20 ns
Power Dissipation
Cycle Time
(Min.)
Operating (Max.) Standby (Max.)
90 ns
110 ns
130 ns
935 mW
825 mW
770 mW
5.5 mW/
1.1 mW (SL version)
1/16
¡ Semiconductor
MSM514260C/CSL
PIN CONFIGURATION (TOP VIEW)
V
CC
1
40
V
SS
DQ1
2
DQ2
3
DQ3
4
DQ4
5
V
CC
6
DQ5
7
DQ6
8
DQ7
9
39
DQ16
38
DQ15
37
DQ14
36
DQ13
35
V
SS
34
DQ12
33
DQ11
32
DQ10
31
DQ9
V
CC
DQ1
DQ2
DQ3
DQ4
V
CC
DQ5
DQ6
DQ7
DQ8
1
2
3
4
5
6
7
8
9
10
44
43
42
41
40
39
38
37
36
35
32
31
30
29
28
27
26
25
24
23
V
SS
DQ16
DQ15
DQ14
DQ13
V
SS
DQ12
DQ11
DQ10
DQ9
NC
LCAS
UCAS
OE
A8
A7
A6
A5
A4
V
SS
DQ8
10
NC
11
NC
12
WE
13
NC
15
A0
16
A1
17
A2
18
A3
19
RAS
14
NC
NC
30
NC
29
LCAS WE
RAS
28
UCAS
NC
27
OE
A0
26
A8
A1
A2
25
A7
A3
24
A6
V
CC
23
A5
22
A4
21
V
SS
13
14
15
16
17
18
19
20
21
22
V
CC
20
44/40-Pin Plastic TSOP
(K Type)
40-Pin Plastic SOJ
Pin Name
A0 - A8
RAS
LCAS
UCAS
DQ1 - DQ16
OE
WE
V
CC
V
SS
NC
Function
Address Input
Row Address Strobe
Lower Byte Column Address Strobe
Upper Byte Column Address Strobe
Data Input / Data Output
Output Enable
Write Enable
Power Supply (5 V)
Ground (0 V)
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.
2/16
¡ Semiconductor
MSM514260C/CSL
BLOCK DIAGRAM
RAS
LCAS
UCAS
Column
Address
Buffers
Internal
Address
Counter
Row
Address
9
Buffers
Timing
Generator
WE
I/O
Controller
I/O
Controller
OE
8
Output
Buffers
8
DQ1
-
DQ8
8
9
9
Column Decoders
Input
Buffers
8
A0 - A8
Refresh
Control Clock
Sense Amplifiers
16
I/O
Selector
16
8
9
Input
Buffers
8
Row
Deco-
ders
Word
Drivers
Memory
Cells
8
DQ9
-
DQ16
Output
Buffers
8
V
CC
On Chip
V
BB
Generator
V
SS
FUNCTION TABLE
Input Pin
RAS
H
L
L
L
L
L
L
L
L
LCAS
UCAS
WE
OE
DQ Pin
DQ1 - DQ8
High-Z
High-Z
D
OUT
High-Z
D
OUT
D
IN
Don't Care
D
IN
High-Z
DQ9 - DQ16
High-Z
High-Z
High-Z
D
OUT
D
OUT
Don't Care
D
IN
D
IN
High-Z
Function Mode
Standby
Refresh
Lower Byte Read
Upper Byte Read
Word Read
Lower Byte Write
Upper Byte Write
Word Write
—
*
H
L
H
L
L
H
L
L
*
H
H
L
L
H
L
L
L
*
*
H
H
H
L
L
L
H
*
*
L
L
L
H
H
H
H
*: "H" or "L"
3/16
¡ Semiconductor
MSM514260C/CSL
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Parameter
Voltage on Any Pin Relative to V
SS
Short Circuit Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Symbol
V
T
I
OS
P
D
*
T
opr
T
stg
Rating
–1.0 to 7.0
50
1
0 to 70
–55 to 150
Unit
V
mA
W
°C
°C
*: Ta = 25°C
Recommended Operating Conditions
Parameter
Power Supply Voltage
Input High Voltage
Input Low Voltage
Symbol
V
CC
V
SS
V
IH
V
IL
Min.
4.5
0
2.4
–1.0
Typ.
5.0
0
—
—
Max.
5.5
0
6.5
0.8
(Ta = 0°C to 70°C)
Unit
V
V
V
V
Capacitance
Parameter
Input Capacitance (A0 - A8)
Input Capacitance
(RAS,
LCAS, UCAS, WE, OE)
Output Capacitance (DQ1 - DQ16)
Symbol
C
IN1
C
IN2
C
I/O
Typ.
—
—
—
(V
CC
= 5 V ±10%, Ta = 25°C, f = 1 MHz)
Max.
7
7
10
Unit
pF
pF
pF
4/16
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