EDI8L32256V-AC [ETC]
TMS320C3000. TMS320C4000 Families ; TMS320C3000 。 TMS320C4000家庭\n
| 型号： | EDI8L32256V-AC |
| 厂家： | 
ETC |
| 描述： | TMS320C3000. TMS320C4000 Families
|
| 文件： | 总10页 (文件大小：511K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
n 256Kx32 bit CMOS Static
The EDI8L32256V is a high speed, 3.3 volt, 8 megabit SRAM.
The device is available with access times of 12, 15, 17 and
20ns, allowing the creation of a no wait state DSP memory
solution.
n DSP Memory Solution
• ADSP - 21060L (SHARC)
• ADSP - 21062L (SHARC)
The device can be configured as a 256Kx32 and used to
create a single chip external data memory solution for Texas
Instruments' TMS320LC31 (figure 3), or Analog Device's
SHARCTM DSP (figure 4).
• TMS320LC31
n Random Access Memory Array
• Fast Access Times: 12, 15, 17 and 20ns
• Individual Byte Enables
Alternatively the device's chip enables can be used to con-
figure it as a 512Kx16. A 512Kx48 program memory array
for Analog's SHARC DSP is created using three devices (fig-
ure 5). If this memory is too deep, two 256Kx24s
(EDI8L24256V) can be used to create a 256Kx48 array or
two 128Kx24s (EDI8L24128V) can be used to create a
128Kx48 array.
• User Configurable Organization
with Minimal Additional Logic
• Master Output Enable and Write Control
• TTL Compatible Inputs and Outputs
• Fully Static, No Clocks
The device provides a 32ꢀ space savings when compared
to two monolithic 256Kx16, 44 pin SOJs.
n Surface Mount Package
The device provides a memory upgrade of the EDI8L32128V
(128Kx32). For more memory the device can be upgraded
to the EDI8L32512V (512Kx32). For additional upgrade in-
formation see figure 6.
• 68 Lead PLCC, No. 99 JEDEC MO-47AE
• Small Footprint, 0.990 Sq. In.
• Multiple Ground Pins for Maximum Noise Immunity
n Single 3.3V ( 5ꢀ) Supply Operation
NOTE: Solder Reflow temperature should not exceed 260°C for 10 seconds.
AØ-A17
EØ-E1
BSØ-BS3
W
Address Inputs
Chip Enables (One per Word)
Byte Selects (One per Byte)
Master Write Enable
Master Output Enable
Common Data Input/Output
Power (3*3V±5%)
G
DQØ-DQ31
VCC
VSS
Ground
NC
No Connection
March, 1998 Rev. 2
ECO# 10135
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
Parameter
Sym
VCC
VSS
VIH
VIL
Min
Typ
Max
Units
V
Voltage on any pin relative to VSS
Operating Temperature TA (Ambient)
Commercial
-0.5V to 4.6V
Supply Voltage
Supply Voltage
Input High Voltage
Input Low Voltage
3.135 3.3
3.465
0
0
0
V
0°C to + 70°C
-40°C to +85°C
-55°C to +125°C
1.7 Watts
2.2
-0.3
--
--
VCC+0.3
0.8
V
Industrial
V
Storage Temperature
Power Dissipation
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.
Parameter
Sym
CA
Max
20
10
6
Unit
pF
pF
pF
pF
Address Lines
Data Lines
CD/Q
W, G
E, BS
Write & Output Enable Lines
Chip Enable Lines/Byte Select
9
E
H
W
X
G
X
BSØ-3 Mode
Output
High Z
Power
ICC2,ICC3
X
X
H
L
Standby
L
L
L
L
H
X
H
L
H
X
L
Output Disable
Output Disable
Read
High Z
High Z
DOUT
DIN
ICC1
ICC1
ICC1
ICC1
X
L
Write
X Means Don't Care
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
DC ELECTRICAL CHARACTERISTICS
Parameter
Sym
Conditions
Min
Max
12/15
Units
ns
mA
17/20
440
Operating Power Supply Current ICC1
W= VIL, II/O = 0mA,
Min Cycle
E ³ VIH, VIN £ VIL or
VIN ³ VIH, f=ØMHz
E ³ VCC-0.2V
480
100
20
Standby (TTL) Supply Current
Full StandbySupply Current
ICC2
ICC3
100
20
mA
mA
VIN ³ VCC-0.2V or
VIN £ 0.2V
VIN = 0V to VCC
V I/O = 0V to VCC
IOH = -4.0mA
Input Leakage Current
Output Leakage Current
Output High Volltage
Output Low Voltage
ILI
ILO
VOH
VOL
10
10
10
10
µA
µA
V
2.4
IOL = 8.0mA
0.4
0.4
V
Input Pulse Levels
Input Rise and Fall Times
VSS to 3.0V
5ns
Input and Output Timing Levels
Output Load
1.5V
Figure 1
(note: For TEHQZ,TGHQZ and TWLQZ, see figure 2)
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
Read Cycle Time
Address Access Time
Chip Enable Access Time
Byte Select Access Time
Chip Enable to Output in Low Z (1)
Byte Select to Output in Low Z
Chip Disable to Output in High Z (1)
Byte Select to Output in High Z
Output Hold from Address Change
Output Enable to Output Valid
Output Enable to Output in Low Z (1)
TAVAV
TAVQV
TELQV
TBLQX
TELQX
TBLQX
TEHQZ
TBHQZ
TAVQX
TGLQV
TGLQX
TRC
TAA
TACS
TBLZ
TCLZ
TBLZ
TCHZ
TBHZ
TOH
TOE
12
15
17
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
12
12
12
15
15
15
17
17
17
20
20
20
3
3
3
3
3
3
3
3
7
7
8
8
8
8
10
10
3
2
3
2
3
2
3
2
5
4
6
5
8
6
10
8
TOLZ
TOHZ
Output Disable to Output in High Z(1) TGHQZ
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
ACCHARACTERTISTICS-WRITECYCLE
Symbol
JEDEC
TAVAV
TELWH
TELEH
TBLWH
TAVWL
TAVEL
12ns
Min Max
15ns
Min Max
17ns
Min Max
20ns
Min Max Units
Parameter
Write Cycle Time
Chip Enable to End of Write
Alt.
TWC
TCW
TCW
TBW
TAS
12
8
8
8
0
0
9
9
9
9
0
0
0
0
15
12
12
12
0
17
10
10
10
0
20
15
15
15
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Byte Select to End of Write
Address Setup Time
TAS
0
0
0
Address Valid to End of Write
Write Pulse Width
TAVWH
TAVEH
TWLWH
TWLEH
TWHAX
TEHAX
TWHDX
TEHDX
TWLQZ
TDVWH
TDVEH
TAW
TAW
TWP
TWP
TWR
TWR
TDH
TDH
TWHZ
TDW
TDW
TWLZ
12
12
12
12
0
12
12
12
12
0
15
15
15
15
0
Write Recovery Time
Data Hold Time
0
0
0
0
8
8
2
0
0
0
0
8
8
2
0
0
0
0
Write to Output in High Z (1)
Data to Write Time
0
5
5
2
5
6
7
7
10
10
2
Output Active from End of Write (1) TWHQX
Note 1: Parameter guaranteed, but not tested.
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
Package No. 99
68 Lead PLCC JEDEC
MO-47AE
Weight = 4.2g
Theta JA = 40°C/W
Theta Jc = 15°C/W
Part Number
Speed
(ns)
12
Package
No.
99
Part Number
Speed
(ns)
15
Package
No.
EDI8L32256V12AC
EDI8L32256V15AC
EDI8L32256V17AC
EDI8L32256V20AC
EDI8L32256V15AI
EDI8L32256V17AI
EDI8L32256V20AI
99
15
99
17
99
17
99
20
99
20
99
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
Figure 3 - Interfacing the Texas Instruments TMS320LC31
with the EDI8L32256V (256K x 32)
Primary Address Bus
EDI8L32256V
A23 - A0
A17
}
A16
A15
A14
A13
A12
A
D
D
R
E
S
DQ31
DQ30
DQ29
DQ28
DQ27
Texas Instruments
D
A
T
A
TMS320LC31
S
B
U
S
A3
A2
A1
A0
B
U
S
E0\ and E1\ may be tied to GND
or connected to STRB\. Tying E0\
and E1\ to GND will prevent device
from entering standby mode.
DQ4
DQ3
DQ2
DQ1
DQ0
E0\
E1\
BS0\
BS1\
BS2\
BS3\
STRB\
R/W\
W\
G\
Primary Databus
D31 - D0
Figure 4 - Interfacing the Analog SHARC DSP w/ the EDI8L32256V
(256K x 32 Array)
A31 - A0
A0 - A17
E0\
Analog Devices
ADSP-2106xL
MS0\
MS1\
WR\
RD\
E1\
EDI8L32256V
(Configured as 256Kx32)
BS0\
BS1\
BS2\
BS3\
W\
G\
DQ0 - DQ31
D47 - D0
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
Figure 5 - Interfacing the Analog SHARC DSP w/ the EDI8L32256V
(512K x 48 Array)
EDI8L32256V
A17 - A0
E0\
DQ31
(Configured as 512Kx16)
DQ15
D
A
T
A
DQ16
DQ15
Word1
BS0\
BS1\
E1\
DQ0
Address Bus
A31 - A0
MS0\
MS1\
B
U
S
BS2\
BS3\
W\
DQ0
G\
WR\
RD\
Analog Devices
ADSP-2106xL
EDI8L32256V
DQ31
(Configured as 512Kx16)
A17 - A0
E0\
BS0\
BS1\
E1\
DQ31
D
A
T
A
DQ16
DQ15
Word2
DQ16
B
U
S
BS2\
BS3\
W\
DQ0
G\
EDI8L32256V
A17 - A0
DQ31
(Configured as 512Kx16)
Databus
D47 - D0
DQ47
D
A
T
A
E0\
DQ16
DQ15
Word3
BS0\
BS1\
E1\
DQ32
B
U
S
BS2\
BS3\
W\
DQ0
G\
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
White Electronic Designs Corporation • Westborough, MA 01581 •
(508) 366-5151 www.whiteedc.com
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