¡ Semiconductor |
E2G0035-17-41 |
Semiconductor |
MSM5117400B |
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MSM5117400B
4,194,304-Word ´ 4-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
DESCRIPTION
The MSM5117400B is a 4,194,304-word ´ 4-bit dynamic RAM fabricated in Oki's silicon-gate CMOS technology. The MSM5117400B 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 MSM5117400B is available in a 26/24-pin plastic SOJ or 26/24-pin plastic TSOP.
FEATURES
•4,194,304-word ´ 4-bit configuration
•Single 5 V power supply, ±10% tolerance
• Input : TTL compatible, low input capacitance
•Output : TTL compatible, 3-state
•Refresh : 2048 cycles/32 ms
•Fast page mode, read modify write capability
•CAS before RAS refresh, hidden refresh, RAS-only refresh capability
•Multi-bit test mode capability
•Package options:
26/24-pin 300 mil plastic SOJ (SOJ26/24-P-300-1.27) (Product : MSM5117400B-xxSJ) 26/24-pin 300 mil plastic TSOP (TSOPII26/24-P-300-1.27-K) (Product : MSM5117400B-xxTS-K)
(TSOPII26/24-P-300-1.27-L) (Product : MSM5117400B-xxTS-L) xx indicates speed rank.
PRODUCT FAMILY
Family |
Access Time (Max.) |
Cycle Time |
Power Dissipation |
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tRAC |
tAA |
tCAC |
tOEA |
(Min.) |
Operating (Max.) |
Standby (Max.) |
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MSM5117400B-50 |
50 ns |
25 ns |
13 ns |
13 ns |
90 ns |
660 mW |
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MSM5117400B-60 |
60 ns |
30 ns |
15 ns |
15 ns |
110 ns |
605 mW |
5.5 mW |
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MSM5117400B-70 |
70 ns |
35 ns |
20 ns |
20 ns |
130 ns |
550 mW |
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16M
215
MSM5117400B |
¡ Semiconductor |
PIN CONFIGURATION (TOP VIEW) |
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VCC |
1 |
26 |
VSS |
VCC |
1 |
26 |
VSS |
DQ1 |
2 |
25 |
DQ4 |
DQ1 |
2 |
25 |
DQ4 |
DQ2 |
3 |
24 |
DQ3 |
DQ2 |
3 |
24 |
DQ3 |
WE 4 |
23 |
CAS |
WE 4 |
23 |
CAS |
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RAS |
5 |
22 |
OE |
RAS |
5 |
22 |
OE |
NC |
6 |
21 |
A9 |
NC |
6 |
21 |
A9 |
A10 |
8 |
19 |
A8 |
A10 |
8 |
19 |
A8 |
A0 |
9 |
18 |
A7 |
A0 |
9 |
18 |
A7 |
A1 |
10 |
17 |
A6 |
A1 |
10 |
17 |
A6 |
A2 |
11 |
16 |
A5 |
A2 |
11 |
16 |
A5 |
A3 |
12 |
15 |
A4 |
A3 |
12 |
15 |
A4 |
VCC 13 |
14 |
VSS |
VCC 13 |
14 |
VSS |
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26/24-Pin Plastic SOJ |
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26/24-Pin Plastic TSOP |
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(K Type) |
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VSS |
26 |
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1 |
VCC |
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DQ4 |
25 |
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2 |
DQ1 |
DQ3 |
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DQ2 |
24 |
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3 |
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CAS |
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WE |
23 |
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4 |
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OE |
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RAS |
22 |
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5 |
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A9 |
21 |
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6 |
NC |
A8 |
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A10 |
19 |
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8 |
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A7 |
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A0 |
18 |
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9 |
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A6 |
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A1 |
17 |
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10 |
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A5 |
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A2 |
16 |
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11 |
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A4 |
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A3 |
15 |
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12 |
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VSS |
14 |
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13 |
VCC |
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26/24-Pin Plastic TSOP
(L Type)
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Pin Name |
Function |
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A0 - A10 |
Address Input |
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RAS |
Row Address Strobe |
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CAS |
Column Address Strobe |
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DQ1 - DQ4 |
Data Input/Data Output |
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OE |
Output Enable |
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WE |
Write Enable |
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VCC |
Power Supply (5 V) |
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VSS |
Ground (0 V) |
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NC |
No Connection |
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Note : |
The same power supply voltage must be provided to every VCC pin, and the same GND |
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16M |
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voltage level must be provided to every VSS pin. |
216
¡ Semiconductor |
MSM5117400B |
BLOCK DIAGRAM
RAS |
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Timing |
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Generator |
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Timing |
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CAS |
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Generator |
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Column |
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Write |
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11 |
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11 |
Column |
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Clock |
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WE |
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Address |
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Decoders |
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Generator |
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OE |
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Buffers |
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4 |
Output |
4 |
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Buffers |
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Internal |
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Refresh |
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I/O |
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A0 - A10 |
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Sense |
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Address |
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4 |
4 |
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4 DQ1 - DQ4 |
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Control Clock |
Amplifiers |
Selector |
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Counter |
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Input |
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4 |
4 |
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Buffers |
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Row |
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Row |
Word |
Memory |
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11 |
Address |
11 |
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De- |
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Drivers |
Cells |
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Buffers |
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coders |
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VCC
On Chip
VBB Generator
On Chip
IVCC Generator
VSS
16M
217