IS61LV12824 |
ISSI® |
128K x 24 HIGH-SPEED CMOS STATIC RAM WITH 3.3V SUPPLY
DECEMBER 1999
FEATURES
•High-speed access time: 8, 9, 10, 12 ns
•CMOS low power operation
—756 mW (max.) operating @ 8 ns
—36 mW (max.) standby @ 8 ns
•TTL compatible interface levels
•Single 3.3V power supply
•Fully static operation: no clock or refresh required
•Three state outputs
•Available in 119-pin Plastic Ball Grid Array (PBGA) and 100-pin TQFP packages.
•Industrial temperature available
DESCRIPTION
The ISSI IS61LV12824 is a high-speed, static RAM organized as 131,072 words by 24 bits. It is fabricated using ISSI's highperformance CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields access times as fast as 8 ns with low power consumption.
When CE1, CE2 are HIGH and CE2 is LOW (deselected), the device assumes a standby mode at which the power dissipation can be reduced down with CMOS input levels.
Easy memory expansion is provided by using Chip Enable and Output Enable inputs, CE1, CE2, CE2 and OE. The active LOW Write Enable (WE) controls both writing and reading of the memory.
The IS61LV12824 is packaged in the JEDEC standard 119-pin PBGA and 100-pin TQFP.
FUNCTIONAL BLOCK DIAGRAM
A0-A16 |
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128K x 24 |
DECODER |
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MEMORY ARRAY |
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VCC
GND
I/O
I/O0-I/O23 DATA COLUMN I/O
CIRCUIT
CE2
CE1
CE2
CONTROL
CIRCUIT
OE
WE
ISSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2001, Integrated Silicon Solution, Inc.
Integrated Silicon Solution, Inc. — 1-800-379-4774 |
1 |
Rev. B
04/17/01
IS61LV12824 |
ISSI® |
PIN CONFIGURATION - 119-pin PBGA
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1 |
2 |
3 |
4 |
5 |
6 |
7 |
A |
NC |
A11 |
A14 |
A15 |
A16 |
A4 |
NC |
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B |
NC |
A12 |
A13 |
CE1 |
A5 |
A3 |
NC |
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C |
I/O16 |
NC |
CE2 |
NC |
CE2 |
NC |
I/O0 |
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D |
I/O17 |
VCCQ |
GND |
GND |
GND |
VCCQ |
I/O1 |
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E |
I/O18 |
GND |
VCC |
GND |
VCC |
GND |
I/O2 |
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F |
I/O19 |
VCCQ |
GND |
GND |
GND |
VCCQ |
I/O3 |
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G |
I/O20 |
GND |
VCC |
GND |
VCC |
GND |
I/O4 |
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H |
I/O21 |
VCCQ |
GND |
GND |
GND |
VCCQ |
I/O5 |
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J |
VCCQ |
GND |
VCC |
GND |
VCC |
GND |
VCCQ |
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K |
I/O22 |
VCCQ |
GND |
GND |
GND |
VCCQ |
I/O6 |
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L |
I/O23 |
GND |
VCC |
GND |
VCC |
GND |
I/O7 |
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M |
I/O12 |
VCCQ |
GND |
GND |
GND |
VCCQ |
I/O8 |
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N |
I/O13 |
GND |
VCC |
GND |
VCC |
GND |
I/O9 |
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P |
I/O14 |
VCCQ |
GND |
GND |
GND |
VCCQ |
I/O10 |
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R |
I/O15 |
NC |
NC |
NC |
NC |
NC |
I/O11 |
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T |
NC |
A10 |
A8 |
WE |
A0 |
A1 |
NC |
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U |
NC |
A9 |
A7 |
OE |
A6 |
A2 |
NC |
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PIN DESCRIPTIONS
A0-A16 |
Address Inputs |
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I/O0-I/O23 |
Data Inputs/Outputs |
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CE1, CE2 |
Chip Enable Input LOW |
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CE2 |
Chip Enable Input HIGH |
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OE |
Output Enable Input |
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WE |
Write Enable Input |
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NC |
No Connection |
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Vcc |
Power |
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VCCQ |
I/O Power |
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GND |
Ground |
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2 Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. B
04/17/01
IS61LV12824 |
ISSI® |
PIN CONFIGURATION
100-Pin TQFP
NC
Vcc
GND I/O16 I/O17 GND VccQ I/O18 I/O19 GND VccQ I/O20 I/O21
Vcc
NC
NC GND I/O22 I/O23 VccQ GND I/O12 I/O13 VccQ GND I/O14 I/O15
Vcc
GND
NC
NC |
NC A11 |
A12 |
A13 A14 A15 CE2 |
Vcc GND |
CE2 CE1 A16 A5 A4 |
A3 |
NC |
NC |
NC |
NC |
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100 99 98 97 |
96 95 94 93 |
92 91 90 89 88 87 86 |
85 84 83 82 81 |
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1 |
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80 |
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2 |
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79 |
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3 |
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78 |
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4 |
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77 |
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76 |
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75 |
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7 |
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74 |
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8 |
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73 |
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9 |
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71 |
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11 |
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21 |
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60 |
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51 |
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31 32 33 |
34 35 36 37 38 39 40 |
41 42 43 44 45 46 47 48 49 50 |
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NC |
NC NC |
NC |
A10 A9 A8 A7 |
OE GND |
Vcc WE A6 A0 A1 |
A2 |
NC |
NC |
NC |
NC |
NC
Vcc
GND I/O0 I/O1 GND VccQ I/O2 I/O3 GND VccQ I/O4 I/O5 Vcc NC NC GND I/O6 I/O7 VccQ GND I/O8 I/O9 VccQ GND I/O10 I/O11 Vcc GND NC
Integrated Silicon Solution, Inc. — 1-800-379-4774 |
3 |
Rev. B
04/17/01
IS61LV12824 |
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ISSI® |
|
TRUTH TABLE |
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Mode |
WE |
CE1 |
CE2 |
CE2 |
OE |
I/O0-I/O23 |
Vcc Current |
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Not Selected |
X |
H |
X |
X |
X |
High-Z |
ISB1, ISB2 |
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X |
X |
L |
X |
X |
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X |
X |
X |
H |
X |
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Output Disabled |
H |
L |
H |
L |
H |
High-Z |
ICC |
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Read |
H |
L |
H |
L |
L |
DOUT |
ICC |
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Write |
L |
L |
H |
L |
X |
DIN |
ICC |
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ABSOLUTE MAXIMUM RATINGS(1)
Symbol |
Parameter |
|
Value |
Unit |
VCC |
Power Supply Voltage Relative to GND |
–0.5 to 5.0 |
V |
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VTERM |
Terminal Voltage with Respect to GND |
–0.5 to Vcc + 0.5 |
V |
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TSTG |
Storage Temperature |
|
–65 to + 150 |
°C |
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TBIAS |
Temperature Under Bias: |
Com. |
–10 to + 85 |
°C |
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Ind. |
–45 to + 90 |
°C |
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PT |
Power Dissipation |
|
2.0 |
W |
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IOUT |
DC Output Current |
|
±20 |
mA |
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Note:
1.Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
OPERATING RANGE
Range |
Ambient Temperature |
VCC (8, 9 ns) |
VCC (10, 12 ns) |
Commercial |
0°C to +70°C |
3.3V + 10%, – 5% |
3.3V ± 10% |
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Industrial |
–40°C to +85°C |
3.3V + 10%, – 5% |
3.3V ± 10% |
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Symbol |
Parameter |
Test Conditions |
Min. |
Max. |
Unit |
VOH |
Output HIGH Voltage |
VCC = Min., IOH = –4.0 mA |
2.4 |
— |
V |
|
|
|
|
|
|
VOL |
Output LOW Voltage |
VCC = Min., IOL = 8.0 mA |
— |
0.4 |
V |
|
|
|
|
|
|
VIH |
Input HIGH Voltage |
|
2.2 |
VCC + 0.3 |
V |
|
|
|
|
|
|
VIL |
Input LOW Voltage(1) |
|
–0.3 |
0.8 |
V |
ILI |
Input Leakage |
GND ≤ VIN ≤ VCC |
–1 |
1 |
µA |
ILO |
Output Leakage |
GND ≤ VOUT ≤ VCC, Outputs Disabled |
–1 |
1 |
µA |
Note:
1.VIL (min.) = –0.3V DC; VIL (min.) = –2.0V AC (pulse width ≤ 2.0 ns).
VIH (max.) = VCC + 0.3V DC; VIH (max.) = VCC + 2.0V AC (pulse width ≤ 2.0 ns).
4 Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. B
04/17/01