E2G0024-17-42
This version: Jan. 1998
Semiconductor MSM514800C/CSL
¡ Semiconductor
Previous version: May 1997
MSM514800C/CSL
524,288-Word ´ 8-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
DESCRIPTION
The MSM514800C/CSL is a 524,288-word ´ 8-bit dynamic RAM fabricated in Oki's silicon-gate CMOS technology. The MSM514800C/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 MSM514800C/CSL is available in a 28-pin plastic SOJ or 28pin plastic TSOP. The MSM514800CSL (the self-refresh version) is specially designed for lowerpower applications.
FEATURES
•524,288-word ´ 8-bit configuration
•Single 5 V power supply, ±10% tolerance
• Input |
: TTL compatible, low input capacitance |
• Output |
: TTL compatible, 3-state |
• Refresh |
: 1024 cycles/16 ms, 1024 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:
28-pin 400 mil plastic SOJ |
(SOJ28-P-400-1.27) |
(Product : MSM514800C/CSL-xxJS) |
28-pin 400 mil plastic TSOP |
(TSOPII28-P-400-1.27-K) |
(Product : MSM514800C/CSL-xxTS-K) |
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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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MSM514800C/CSL-60 |
60 ns |
30 ns |
20 ns |
20 ns |
110 ns |
660 mW |
5.5 mW/ |
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MSM514800C/CSL-70 |
70 ns |
35 ns |
20 ns |
20 ns |
130 ns |
605 mW |
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1.1 mW (SL version) |
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MSM514800C/CSL-80 |
80 ns |
40 ns |
20 ns |
20 ns |
150 ns |
550 mW |
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¡ Semiconductor MSM514800C/CSL
PIN CONFIGURATION (TOP VIEW)
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VCC |
1 |
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28 |
VSS |
VCC |
1 |
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28 |
VSS |
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DQ1 |
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DQ1 |
2 |
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27 |
DQ8 |
2 |
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27 |
DQ8 |
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DQ2 |
3 |
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26 |
DQ7 |
DQ2 |
3 |
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26 |
DQ7 |
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DQ3 |
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DQ6 |
DQ3 |
4 |
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25 |
DQ6 |
4 |
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25 |
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DQ4 |
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DQ5 |
DQ4 |
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DQ5 |
5 |
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24 |
5 |
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24 |
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NC |
6 |
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23 |
CAS |
NC |
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CAS |
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6 |
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23 |
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WE |
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OE |
WE |
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OE |
7 |
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22 |
7 |
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22 |
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RAS |
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NC |
RAS |
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NC |
8 |
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21 |
8 |
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21 |
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A9R |
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A8 |
A9R |
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A8 |
9 |
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20 |
9 |
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20 |
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A0 |
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A7 |
A0 |
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A7 |
10 |
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19 |
10 |
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19 |
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A1 |
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A6 |
A1 |
11 |
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18 |
A6 |
11 |
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18 |
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A2 |
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A5 |
A2 |
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A5 |
12 |
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17 |
12 |
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17 |
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A3 |
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A4 |
A3 |
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A4 |
13 |
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16 |
13 |
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16 |
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VCC |
14 |
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15 |
VSS |
VCC |
14 |
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15 |
VSS |
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28-Pin Plastic SOJ |
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28-Pin Plastic TSOP |
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(K Type) |
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Pin Name |
Function |
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A0 - A8, A9R |
Address Input |
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RAS |
Row Address Strobe |
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CAS |
Column Address Strobe |
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DQ1 - DQ8 |
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) |
VSS |
Ground (0 V) |
NC |
No Connection |
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Note: The same power supply voltage must be provided to every VCC pin, and the same GND voltage level must be provided to every VSS pin.
2/16
¡ Semiconductor |
MSM514800C/CSL |
BLOCK DIAGRAM
Timing
RAS Generator
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Timing |
CAS |
Generator |
9
A0 - A8
9
A9R 1
VCC
VSS
Column |
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Write |
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9 |
Column |
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Clock |
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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8 |
Output |
8 |
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Buffers |
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Internal |
Refresh |
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I/O |
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Sense |
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Address |
8 |
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8 DQ1 - DQ8 |
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Control Clock |
Amplifiers |
8 |
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Counter |
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Selector |
Input |
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8 |
8 |
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Buffers |
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Row |
Row |
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Address 10 |
Word |
Memory |
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Buffers |
De- |
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Drivers |
Cells |
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coders |
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On Chip
VBB Generator
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¡ Semiconductor MSM514800C/CSL
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
Parameter |
Symbol |
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Rating |
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Unit |
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Voltage on Any Pin Relative to VSS |
VT |
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–1.0 to 7.0 |
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V |
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Short Circuit Output Current |
IOS |
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50 |
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mA |
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Power Dissipation |
PD* |
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1 |
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W |
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Operating Temperature |
Topr |
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0 to 70 |
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°C |
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Storage Temperature |
Tstg |
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–55 to 150 |
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°C |
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*: Ta = 25°C |
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Recommended Operating Conditions |
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(Ta = 0°C to 70°C) |
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Parameter |
Symbol |
Min. |
Typ. |
Max. |
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Unit |
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Power Supply Voltage |
VCC |
4.5 |
5.0 |
5.5 |
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V |
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VSS |
0 |
0 |
0 |
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V |
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Input High Voltage |
VIH |
2.4 |
— |
6.5 |
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V |
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Input Low Voltage |
VIL |
–1.0 |
— |
0.8 |
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V |
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Capacitance |
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(VCC = 5 V ±10%, Ta = 25°C, f = 1 MHz) |
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Parameter |
Symbol |
Typ. |
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Max. |
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Unit |
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Input Capacitance (A0 - A8, A9R) |
CIN1 |
— |
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7 |
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pF |
Input Capacitance (RAS, CAS, WE, OE) |
CIN2 |
— |
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7 |
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pF |
Output Capacitance (DQ1 - DQ8) |
CI/O |
— |
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8 |
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pF |
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¡ Semiconductor |
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MSM514800C/CSL |
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DC Characteristics |
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(VCC = 5 V ±10%, Ta = 0°C to 70°C) |
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MSM514800 |
MSM514800 |
MSM514800 |
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Parameter |
Symbol |
Condition |
C/CSL-60 |
C/CSL-70 |
C/CSL-80 |
Unit |
Note |
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Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
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Output High Voltage |
VOH |
IOH = –5.0 mA |
2.4 |
VCC |
2.4 |
VCC |
2.4 |
VCC |
V |
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Output Low Voltage |
VOL |
IOL = 4.2 mA |
0 |
0.4 |
0 |
0.4 |
0 |
0.4 |
V |
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0 V £ VI £ 6.5 V; |
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Input Leakage Current |
ILI |
All other pins not |
–10 |
10 |
–10 |
10 |
–10 |
10 |
mA |
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under test = 0 V |
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Output Leakage Current |
ILO |
DQ disable |
–10 |
10 |
–10 |
10 |
–10 |
10 |
mA |
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0 V £ VO £ 5.5 V |
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Average Power |
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RAS, CAS cycling, |
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Supply Current |
ICC1 |
— |
120 |
— |
110 |
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100 |
mA |
1, 2 |
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tRC = Min. |
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(Operating) |
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Power Supply |
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RAS, CAS = VIH |
— |
2 |
— |
2 |
— |
2 |
mA |
1 |
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ICC2 |
RAS, CAS |
— |
1 |
— |
1 |
— |
1 |
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Current (Standby) |
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³ VCC –0.2 V |
— |
200 |
— |
200 |
— |
200 |
mA |
1, 5 |
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Average Power |
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RAS cycling, |
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Supply Current |
ICC3 |
CAS = VIH, |
— |
120 |
— |
110 |
— |
100 |
mA |
1, 2 |
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(RAS-only Refresh) |
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tRC = Min. |
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Power Supply |
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RAS = VIH, |
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ICC5 |
CAS = VIL, |
— |
5 |
— |
5 |
— |
5 |
mA |
1 |
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Current (Standby) |
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DQ = enable |
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Average Power |
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RAS cycling, |
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Supply Current |
ICC6 |
— |
120 |
— |
110 |
— |
100 |
mA |
1, 2 |
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CAS before RAS |
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(CAS before RAS Refresh) |
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Average Power |
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RAS = VIL, |
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Supply Current |
ICC7 |
CAS cycling, |
— |
110 |
— |
100 |
— |
90 |
mA |
1, 3 |
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(Fast Page Mode) |
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tPC = Min. |
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Average Power |
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tRC = 125 ms, |
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1, 4, |
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Supply Current |
ICC10 |
CAS before RAS, |
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300 |
— |
300 |
— |
300 |
mA |
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5 |
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(Battery Backup) |
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tRAS £ 1 ms |
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Average Power |
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Supply Current |
ICCS |
RAS £ 0.2 V, |
— |
300 |
— |
300 |
— |
300 |
mA |
1, 5 |
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(CAS before RAS |
CAS £ 0.2 V |
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Self-Refresh) |
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Notes: 1. ICC Max. is specified as ICC for output open condition.
2.The address can be changed once or less while RAS = VIL.
3.The address can be changed once or less while CAS = VIH.
4.VCC – 0.2 V £ VIH £ 6.5 V, –1.0 V £ VIL £ 0.2 V.
5.SL version.
5/16