512Kx32 SRAM MODULE, 3.3V
FEATURES |
The EDI8L32512V is a high speed, 3.3V, 16 megabit SRAM. The |
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■ DSP Memory Solution |
device is available with access times of 12, 15, 17 and 20ns |
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allowing the creation of a no wait state DSP and RISC micropro- |
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NOT |
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• ADSP-21060L (SHARC) |
cessor memory solutions. |
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• ADSP-21062L (SHARC) |
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The device can be configured as a 512K x 32 and used to create a |
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•Texas Instruments TMS320LC31 |
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single chip external data memory solution for TI’s TMS320LC31 |
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■ RISC Memory Solution |
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(figure 5), or Analog’s SHARC™ DSP (figure 6). |
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• MPC860 (Power Quic) |
The device provides a 56% space savings when compared to four |
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■ Random Access Memory Array |
512K x 8, 36 pin SOJs. In addition the EDI8L32512C has only a 10pF |
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• Fast Access Times: 12, 15, 17, and 20ns |
load on the data lines vs. 32pf for four plastic SOJs. |
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• Individual Byte Enables |
The device provides a memory upgrade of the EDI8L32256V (256K |
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• User configurable organization with Minimal Additional Logic |
x 32) or the EDI8L32128V (128K x 32) (figure 8). Alternatively, the |
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device’s chip enables can configure it as a 1M x 16. A 1Mx 48 |
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• Master Output Enable and Write Control |
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program memory array for Analog’s SHARC DSP is created using |
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• TTL Compatible Inputs and Outputs |
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three devices (figure 7). If this memory is too deep, two 512K x 24s |
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• Fully Static, No Clocks |
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(EDI8L24512V) can be used to create a 512K x 48 array or two 128K |
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■ Surface Mount Package |
x 24s (EDI8L24128V) can be used to create a 128K x 48 array. |
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• 68 Lead PLCC, No. 99 JEDEC M0-47AE |
Note: Solder Reflow Temperature should not exceed 260° C for 10 seconds. |
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• Small Footprint, 0.990 Sq. In. |
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RECOMMENDED |
• Multiple Ground Pins for Maximum Noise Immunity
■ Single +3.3V (± 5%) Supply Operation
FIG. 1 PIN CONFIGURATION
TOP VIEW
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DQ16 |
A18 |
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A17 |
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E0 NC |
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VCC |
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NC NC |
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A16 |
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A15 |
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A14 |
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DQ15 |
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E3 |
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E2 |
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E1 |
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G |
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W |
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9 8 |
7 |
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6 5 |
4 |
3 2 |
1 |
68 67 |
66 |
65 64 |
63 |
62 61 |
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DQ17 |
10 |
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60 |
DQ14 |
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59 |
DQ13 |
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DQ18 |
11 |
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58 |
DQ12 |
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DQ19 |
12 |
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57 |
VSS |
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VSS |
13 |
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56 |
DQ11 |
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DQ20 |
14 |
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55 |
DQ10 |
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DQ21 |
15 |
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54 |
DQ9 |
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DQ22 |
16 |
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53 |
DQ8 |
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DQ23 |
17 |
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52 |
VCC |
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VCC |
18 |
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51 |
DQ7 |
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DQ24 |
19 |
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50 |
DQ6 |
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||||
DQ25 |
20 |
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49 |
DQ5 |
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||||
DQ26 |
21 |
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48 |
DQ4 |
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||||
DQ27 |
22 |
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47 |
VSS |
||
VSS |
23 |
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46 |
DQ3 |
||
DQ28 |
24 |
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|||||||||
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45 |
DQ2 |
||
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||||
DQ29 |
25 |
|
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44 |
DQ1 |
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DQ30 |
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DQ31 |
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A6 |
A5 |
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A4 A3 |
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A2 |
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A1 |
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A0 |
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VCC |
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A13 |
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A12 |
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A11 |
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A10 |
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A9 |
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A8 |
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A7 |
DQ0 |
|
NOTE: For memory upgrade information, refer to Page 7, Figure 8 “EDI MCM-L upgrade path.
October 2000 Rev. 3
ECO# 13316
FOR |
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PIN DESCRIPTION |
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A0-18 |
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Address Inputs |
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0-3 |
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Chip Enables |
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E |
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(One per Byte) |
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Master Write Enable |
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NEW |
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W |
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G |
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Master Output |
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Enable |
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DQ0-31 |
Common Data |
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Input/Output |
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VCC |
Power (+3.3V± 5%) |
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VSS |
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Ground |
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NC |
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No Connection |
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E0 |
DESIGN |
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BLOCK DIAGRAM |
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A0-18 |
19 |
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G |
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W |
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512K x 32 |
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DQ0-DQ7 |
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Memory |
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DQ8-DQ15 |
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E1 |
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Array |
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DQ16-DQ23 |
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E2 |
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DQ24-DQ31 |
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1 |
E3 |
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|||||||||||
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com |
EDI8L32512V
ABSOLUTE MAXIMUM RATINGS |
RECOMMENDED OPERATING CONDITIONS |
Voltage on any pin relative to VSS |
-0.5V to 7.0V |
Operating Temperature TA (Ambient) |
|
Commercial |
0° C to +70° C |
Industrial |
-40° C to +85° C |
Storage Temperature, Plastic |
-55° C to +125° C |
Power Dissipation |
2.5 Watts |
Output Current |
20 mA |
Junction Temperature, TJ |
+175° C |
* 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 greater than those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
TRUTH TABLE
|
|
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|
E |
|
W |
|
G |
Mode |
Output |
Power |
|||
|
H |
|
X |
|
X |
Standby |
High Z |
Icc2, Icc3 |
|||
|
L |
|
H |
|
H |
Output Deselect |
High Z |
Icc1 |
|||
|
L |
|
H |
|
L |
Read |
Data Out |
Icc1 |
|||
|
L |
|
L |
|
X |
Write |
Data In |
Icc1 |
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Supply Voltage |
VCC |
3.135 |
3.3 |
3.465 |
V |
Supply Voltage |
VSS |
0 |
0 |
0 |
V |
Input High Voltage |
VIH |
2.2 |
— |
Vcc +0.3 |
V |
Input Low Voltage |
VIL |
-0.3 |
— |
+0.8 |
V |
CAPACITANCE
(f = 1.0MHz, VIN = VCC or VSS)
Parameter |
|
Sym |
Max |
Unit |
|||
Address Lines |
|
CI |
30 |
pF |
|||
Data Lines |
|
CD/Q |
10 |
pF |
|||
Write & Output Enable Line |
|
|
|
|
|
30 |
pF |
|
W, |
|
G |
||||
Chip Enable Line |
|
E0-3 |
8 |
pF |
|||
|
|
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|
|
DC ELECTRICAL CHARACTERISTICS
(VCC = 3.3V, TA = 25˚C)
Parameter |
Symbol |
|
|
|
|
|
|
|
Conditions |
|
12 & 15 |
|
|
17 & 20 |
|
Units |
|
|
|
|
|
|
|
|
|
|
Min |
Typ |
Max |
Min |
Typ |
Max |
|
Operating Power Supply Current |
ICC1 |
|
|
W |
= VIL, II/O = 0mA, Min Cycle |
— |
440 |
720 |
— |
440 |
640 |
mA |
||||
Standby (TTL) Power Supply Current |
ICC2 |
|
|
|
|
≥ |
VIH, VIN ≤ VIL or VIN ≥ VIH |
— |
100 |
200 |
— |
100 |
200 |
mA |
||
E |
||||||||||||||||
Full Standby Power CMOS |
ICC3 |
|
|
≥ |
VCC -0.2V |
|
|
|
|
|
|
|
||||
E |
— |
60 |
100 |
— |
60 |
100 |
mA |
|||||||||
Supply Current |
|
VIN ≥ VCC -0.2V or VIN ≤ 0.2V |
||||||||||||||
|
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|
|
|||||||||
Input Leakage Current |
ILI |
VIN = 0V to VCC |
— |
— |
± 10 |
— |
— |
± 10 |
A |
|||||||
Output Leakage Current |
ILO |
VI/O = 0V to VCC |
— |
— |
± 10 |
— |
— |
± 10 |
A |
|||||||
Output High Voltage |
VOH |
IOH = -4.0mA |
2.4 |
— |
— |
2.4 |
— |
— |
V |
|||||||
Output Low Voltage |
VOL |
IOL = 4.0mA |
— |
— |
0.4 |
— |
— |
0.4 |
V |
AC TEST CONDITIONS
Figure 1 |
Vcc |
Figure 2 |
Vcc |
|
|
||
|
480Ω |
|
480Ω |
Q |
|
Q |
|
255Ω |
30pF |
255Ω |
5pF |
Input Pulse Levels |
VSS to 3.0V |
Input Rise and Fall Times |
5ns |
Input and Output Timing Levels |
1.5V |
Output Load |
Figure 1 |
|
|
(NOTE: For tEHQZ, tGHQZ and tWLQZ, CL = 5pF, Figure 2)
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com |
2 |
EDI8L32512V
AC CHARACTERISTICS – READ CYCLE
(VCC = 3.3V, Vss = 0V, TA = 0˚C to + 70˚C )
|
Symbol |
12ns |
|
15ns |
|
|
17ns |
|
20ns |
|
|||||
Parameter |
JEDEC |
Alt. |
Min |
Max |
Min |
Max |
Min |
|
Max |
Min |
|
Max |
Units |
||
Read Cycle Time |
tAVAV |
tRC |
12 |
|
|
15 |
|
|
17 |
|
|
20 |
|
|
ns |
Address Access Time |
tAVQV |
tAA |
|
|
12 |
|
|
15 |
|
|
17 |
|
|
20 |
ns |
Chip Enable Access Time |
tELQV |
tACS |
|
|
10 |
|
|
12 |
|
|
15 |
|
|
20 |
ns |
Chip Enable to Output in Low Z (1) |
tELQX |
tCLZ |
3 |
|
|
3 |
|
|
3 |
|
|
3 |
|
|
ns |
Chip Disable to Output in High Z (1) |
tEHQZ |
tCHZ |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
ns |
Output Hold from Address Change |
tAVQX |
tOH |
3 |
|
|
3 |
|
|
3 |
|
|
3 |
|
|
ns |
Output Enable to Output Valid |
tGLQV |
tOE |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
ns |
Output Enable to Output in Low Z (1) |
tGLQX |
tOLZ |
3 |
|
|
3 |
|
|
3 |
|
|
3 |
|
|
ns |
Output Disable to Output in High Z (1) |
tGHQZ |
tOHZ |
|
|
6 |
|
|
7 |
|
|
8 |
|
|
9 |
ns |
1. This parameter is guaranteed by design but not tested.
AC CHARACTERISTICS – WRITE CYCLE
(VCC = 3.3V, Vss = 0V, TA = 0˚C to + 70˚C )
|
Symbol |
|
12ns |
|
15ns |
|
17ns |
|
20ns |
|
|||||
Parameter |
JEDEC |
Alt. |
Min |
|
Max |
Min |
|
Max |
Min |
|
Max |
Min |
|
Max |
Units |
Write Cycle Time |
tAVAV |
tWC |
12 |
|
|
15 |
|
|
17 |
|
|
20 |
|
|
ns |
Chip Enable to End of Write |
tELWH |
tCW |
8 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
ns |
|
tELEH |
tCW |
8 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
ns |
Address Setup Time |
tAVWL |
tAS |
0 |
|
|
0 |
|
|
0 |
|
|
0 |
|
|
ns |
|
tAVEL |
tAS |
0 |
|
|
0 |
|
|
0 |
|
|
0 |
|
|
ns |
Address Valid to End of Write |
tAVWH |
tAW |
8 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
ns |
|
tAVEH |
tAW |
8 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
ns |
Write Pulse Width |
tWLWH |
tWP |
8 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
ns |
|
tELEH |
tWP |
8 |
|
|
10 |
|
|
11 |
|
|
12 |
|
|
ns |
Write Recovery Time |
tWHAX |
tWR |
0 |
|
|
0 |
|
|
0 |
|
|
0 |
|
|
ns |
|
tEHAX |
tWR |
0 |
|
|
0 |
|
|
0 |
|
|
0 |
|
|
ns |
Data Hold Time |
tWHDX |
tDH |
0 |
|
|
0 |
|
|
0 |
|
|
0 |
|
|
ns |
|
tEHDX |
tDH |
0 |
|
|
0 |
|
|
0 |
|
|
0 |
|
|
ns |
Write to Output in High Z (1) |
tWLQZ |
tWHZ |
0 |
|
6 |
0 |
|
7 |
0 |
|
8 |
0 |
|
9 |
ns |
Data to Write Time |
tDVWH |
tDW |
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
ns |
|
tDVEH |
tDW |
6 |
|
|
7 |
|
|
8 |
|
|
9 |
|
|
ns |
Output Active from End of Write (1) |
tWHQX |
tWLZ |
3 |
|
|
3 |
|
|
3 |
|
|
3 |
|
|
ns |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1. This parameter is guaranteed by design but not tested.
3 |
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com |