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White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
EDI8L32128V
White Electronic Designs
FEATURES
128KX32 CMOS HIGH SPEED
STATIC RAM
128Kx32 bit CMOS Static
Analog SHARC
TM
External Memory Solution
ADSP-21060L
ADSP-21062L
Random Access Memory Array
Fast Access Times: 12,15 and 20ns
User Configurable Organization
with Minimal Additional Logic
Master Output Enable and Write Control
TTL Compatible Inputs and Outputs
Fully Static, No Clocks
Surface Mount Package
68 Lead PLCC, No. 99 (JEDEC MO-47AE)
Small Footprint, 0.990 Sq. In.
Multiple Ground Pins for Maximum
Noise Immunity
Single 3.3V (5%) Supply Operation
PIN CONFIGURATIONS AND
BLOCK DIAGRAM
PIN NAMES
The EDI8L32128V is a high speed, 3.3 volt, four megabit
density Static RAM. The device is available with access
times of 12, 15 and 20ns, allowing the device to support
60MHz DSPs with no wait states. The high speed, 3.3V
supply voltage and byte configurability make the device
ideal for interfacing with Analog Devices ADSP-21062L or
ADSP-21060L SHARC DSPs.
The device can be configured as a 128Kx32 and used to
create a single chip external data memory solution for the
SHARC (figure 1). Providing a 51% space savings when
compared to four 128Kx8, 400mil wide plastic SOJs. the
EDI8L32128V has a 10pf load on the data lines vs. 24pf
for four plastic SOJs. Memory upgrades in the same
footprint can be accomplished with the EDI8L32256V
(256Kx32) or the EDI8L32512V (512KX32). This is
covered in detail in the application report "The EDI's x32
MCM-L SRAM Family: Integrated Memory Solution for the
Analog SHARC DSP"
Alternatively the device's chip enables can configure it as
a 256Kx16. A 256Kx48 program memory array for the
SHARC is created using three devices (figure 2). If this
memory is too deep, two 128Kx24's (EDI8L24128V) can
be used to create a 128Kx48 memory array.
Note: Solder Reflow temperature should not exceed 260C for 10 seconds
A-A16
Address Inputs
E-E3
Chip Enables (One per Byte)
W
Master Write Enable
G
Master Output Enable
DQ-DQ31
Common Data Input/Output
VCC
Power (+3.3V10%)
VSS
Ground
NC
No Connection
Note: Pin 2 & 67 on the 64Kx32 (EDI8L3265C) and the 256Kx32
(EDI8L32256C) are word select pins.
April 2001 Rev. 5
ECO #8366
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White Electronic Designs Corporation Westborough MA (508) 485-4000
EDI8L32128V
White Electronic Designs
Parameter
Sym
Conditions
Min
Max
Units
12 15 20
n s
Operating Power Supply Current
ICC1
W= VIL, II/O = 0mA,
680 660 620
mA
Min Cycle
Standby (TTL) Supply Current ICC2
E
VIH, VIN VIL or
120 120 120
mA
VIN
VIH, f=MHz
Full Standby CMOS
ICC3
E
VCC-0.2V
40 40 40
mA
Supply Current
VIN
VCC-0.2V or
VIN 0.2V
Input Leakage Current
ILI
VIN = 0V to VCC
10
A
Output Leakage Current
ILO
V I/O = 0V to VCC
10
A
Output High Volltage
VOH
IOH = -4.0mA
2.4
V
Output Low Voltage
VOL
IOL = 8.0mA
0.4
V
ABSOLUTE MAXIMUM RATINGS*
RECOMMENDED DC OPERATING
CONDITIONS
Parameter
Sym Min Typ Max Units
Supply Voltage VCC3. 135V 3.3 3.465V 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
Voltage on any pin relative to VSS -0.5V to 4.6V
Operating Temperature TA (Ambient)
Commercial 0C to + 70C
Industrial -40C to +85C
Storage Temperature -55C to +125C
Power Dissipation 3 Watts
Output Current. 20 mA
Junction Temperature, TJ 175C
*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.
DC ELECTRICAL CHARACTERISTICS
CAPACITANCE
(f=1.0MHz, VIN=VCC or VSS)
Parameter
Sym Max Unit
Address Lines
CA 40 pF
Data Lines
CD/Q 10 pF
Write & Output Enable Lines W, G 40 pF
Chip Enable Lines E-E3 8 pF
These parameters are sampled, not 100% tested.
AC TEST CONDITIONS
(note: For TEHQZ,TGHQZ and TWLQZ, CL = 5pF) (see figure 2)
Input Pulse Levels
VSS to 3.0V
Input Rise and Fall Times
5ns
Input and Output Timing Levels
1.5V
Output Load
Figure 1
G
E W
Mode Output Power
X
H X
Standby High Z ICC2,ICC3
H
L
H Output Deselect High Z ICC1
L
L
H
Read DOUT ICC1
X
L
L
Write
DIN
ICC1
Typical:TA=25C,VCC=3.3V
TRUTH TABLE
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White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
EDI8L32128V
White Electronic Designs
AC CHARACTERISTICS READ CYCLE
Symbol
12ns 15ns 20ns
Parameter
JEDEC
Alt. Min Max Min Max Min Max Units
Read Cycle Time
TAVAV
TRC
12
15
20
ns
Address Access Time TAVQV
TAA
12
15
20 ns
Chip Enable Access Time TELQV
TACS
8
10
20 ns
Chip Enable to Output in Low Z (1) TELQX
TCLZ 2
3
3
ns
Chip Disable to Output in High Z (1) TEHQZ
TCHZ
7
8
10 ns
Output Hold from Address Change TAVQX
TOH
3
3
3
ns
Output Enable to Output Valid TGLQV
TOE
5
6
8 ns
Output Enable to Output in Low Z (1) TGLQX
TOLZ 2
2
2
ns
Output Disable to Output in High Z(1) TGHQZ
TOHZ
4
5
8 ns
READ CYCLE 2 - W HIGH
READ CYCLE 1 - W HIGH, G, E LOW
Note 1: Parameter guaranteed, but not tested.
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White Electronic Designs Corporation Westborough MA (508) 485-4000
EDI8L32128V
White Electronic Designs
Note 1: Parameter guaranteed, but not tested.
WRITE CYCLE 1 - W CONTROLLED
Symbol 12ns
15ns
20ns
Parameter
JEDEC Alt. Min Max Min Max Min Max Units
Write Cycle Time
TAVAV TWC 12
15
20
ns
Chip Enable to End of Write TELWH TCW 8
9
15
ns
TELEH TCW 8
9
15
ns
Address Setup Time
TAVWL TAS 0
0
0
ns
TAVEL TAS 0
0
0
ns
Address Valid to End of Write TAVWH TAW 9
10
15
ns
TAVEH TAW 9
10
15
ns
Write Pulse Width TWLWH TWP 9
10
15
ns
TWLEH TWP 9
10
15
ns
Write Recovery Time TWHAX TWR 0
0
0
ns
TEHAX TWR 0
0
0
ns
Data Hold Time TWHDX TDH 0
0
0
ns
TEHDX TDH 0
0
0
ns
Write to Output in High Z (1) TWLQZ TWHZ 0
5 0 6 0 7
ns
Data to Write Time TDVWH TDW 5
6
8
ns
TDVEH TDW 5
6
8
ns
Output Active from End of Write (1) TWHQX TWLZ 2
2
2
ns
AC CHARACTERISTICS WRITE CYCLE
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White Electronic Designs Corporation (508) 485-4000 www.whiteedc.com
EDI8L32128V
White Electronic Designs
Package No. 99
68 Lead PLCC
JEDEC MO-47AE
THETA J
A
=40C/W
THETA J
C
=15C/W
WEIGHT =4.2G
PACKAGE DESCRIPTION
ORDERING INFORMATION
WRITE CYCLE 2 - E CONTROLLED
Part Number
Speed
Package
(ns)
No.
EDI8L32128V12AC
12
99
EDI8L32128V15AC
15
99
EDI8L32128V20AC
20
99
Part Number
Speed
Package
(ns)
No.
EDI8L32128V12AI
12
99
EDI8L32128V15AI
15
99
EDI8L32128V20AI
20
99
Commercial (0C to 70C)
Industrial (-40C to +85C)
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