IDT7007 easily expands data bus width to 16 bits or more
Functional Block Diagram
IDT7007S/L
using the Master/Slave select when cascading more than
one device
◆
M/S = H for BUSY output flag on Master,
M/S = L for BUSY input on Slave
◆
Interrupt Flag
◆
On-chip port arbitration logic
◆
Full on-chip hardware support of semaphore signaling
between ports
◆
Fully asynchronous operation from either port
◆
TTL-compatible, single 5V (±10%) power supply
◆
Available in 68-pin PGA and PLCC and a 80-pin TQFP
◆
Industrial temperature range (40°C to +85°C) is available
for selected speeds
OE
L
CE
L
R/W
L
I/O0L- I/O
NOTES:
1. (MASTER): BUSY is output; (SLAVE): BUSY is input.
2. BUSY and INT outputs are non-tri-stated push-pull.
7L
(1,2)(1,2)
BUSY
L
A
A
SEM
INT
14L
0L
L
(2)
L
Addre ss
Decoder
CE
OE
R/W
L
L
L
15
I/O
Control
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
M/S
1
I/O
Control
OE
R
CE
R
R/W
R
I/O0R-I/O
BUSY
Address
Decoder
15
CE
R
OE
R
R/W
R
A
A
SEM
INT
2940 drw 01
14R
0R
7R
R
R
(2)
R
JUNE 1999
DSC 2940/8
IDT7007S/L
High-Speed 32K x 8 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
Description
The IDT7007 is a high-speed 32K x 8 Dual-Port Static RAM. The
IDT7007 is designed to be used as a stand-alone 256K-bit Dual-Port RAM
or as a combination MASTER/SLAVE Dual-Port RAM for 16-bit-or-more
word systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach
in 16-bit or wider memory system applications results in full-speed, errorfree operation without the need for additional discrete logic.
This device provides two independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access for
reads or writes to any location in memory. An automatic power down
feature controlled by CE permits the on-chip circuitry of each port to enter
a very LOW standby power mode.
Fabricated using IDTs CMOS high-performance technology, these
devices typically operate on only 850mW of power.
The IDT7007 is packaged in a 68-pin pin PGA, a 68-pin PLCC,
and an 80-pin thin quad flatpack, TQFP. Military grade product is
manufactured in compliance with the latest revision of MIL-PRF-38535
QML, Class B, making it ideally suited to military temperature applications
demanding the highest level of performance and reliability.
1. All Vcc pins must be connected to power supply.
2. All GND pins must be connected to ground supply.
3. Package body is approximately 14mm x 14mm x 1.4mm.
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part marking.
R
R
R
R
C
/
N
D
3
4
N
1
1
G
A
A
R
R
R
R
R
2
1
0
9
1
1
A
A
8
1
A
A
A
R
7
6
5
A
A
A
C
/
N
2940drw 03
C
/
N
3
IDT7007S/L
High-Speed 32K x 8 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
Pin Configurations
(1,2,3)
(con't.)
11
10
09
08
07
06
05
04
03
02
53
A
55
A
57
A
59
V
61
A
14L
63
SEM
65
OE
67
I/O
68
I/O
515048464442403836
S
L
BUSY
M/
INT
R
R
A
0R
7L
52
A
A
5L
493937
A
A
6L
4L
A
2L
A
0L
BUSY
4745434134
INT
L
3L
A
1L
GND
54
9L
A
8L
56
11L
A
10L
58
CC
60
A
12L
A
13L
IDT7007G
G68-1
(4)
68-Pin PGA
62
L
CE
L
Top View
64
L
W
R/
L
66
0L
N/C
13579
1L
I/O
2L
I/O
GNDGND
4L
I/O
7L
(5)
111315
V
1R
CC
I/O
I/O
A
A
1R
2R
4R
A
3R
35
A
4R
32
A
7R
30
A
9R
28
A
11R
26
GND
24
A
14R
22
SEM
R
20
OE
R
181 9
I/O
7R
33
31
29
27
25
23
21
A
A
A
CE
R/
A
5R
A
6R
A
8R
10R
12R
13R
W
N/C
R
R
01
I/O
3L
I/O
5L
I/O
6L
ABCDEFGH J
INDEX
NOTES:
1. All Vcc pins must be connected to power supply
2. All GND pins must be connected to power supply
3. Package body is approximately 1.8 in x 1.8 in x .16 in.
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part marking.
246810121416
17
I/O
V
CC
I/O2RI/O3RI/O
0R
5R
I/O
6R
K
L
2940 drw 04
Pin Names
Left PortRight PortNames
CE
LCER
W
L
R/
LOER
OE
14L
A0L - A
I/O0L - I/O
SEM
INT
BUSY
7L
LSEMR
LINTR
LBUSYR
W
R
R/
14R
A0R - A
I/O0R - I/O
S
M/
CC
V
GNDGround
7R
Chip Enables
Read/Write Enable
Output Enable
Address
Data Input/ Output
Semaphore Enable
Inte rrup t Flag
Busy Flag
Master or Slave Select
Power
2940 tbl 01
4
IDT7007S/L
High-Speed 32K x 8 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
Truth Table I: Non-Contention Read/Write Control
(1)
Inputs
R/
CE
W
OESEM
HXXHHig h-ZDesel ected: Po wer-Down
LLXHDATA
LHLHDATAOUTRead Memory
XXHXHigh-ZOutputs Disabled
NOTE:
0L A14L≠ A0R A14R
1. A
Outputs
I/O0-7
INWrite to Memory
Mode
2940 tbl 02
Truth Table II: Semaphore Read/Write Control
InputsOutputs
CE
R/W
OESEM
HHL LDATA
H
↑
XLDATAINWrite I/O0 into Semaphore Flag
LXXL
NOTE:
1. There are eight semaphore flags written to via I/O
Absolute Maximum Ratings
SymbolRatingCommercial
(2)
TE RM
V
Te rminal Vo ltage
with Respect
to GND
T
BIAS
Temperature
Under Bias
STG
T
Storage
Temperature
OUT
I
DC Output
Current
NOTES:
1. Stresses 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 sec-tions of this specification is not implied. Exposure
to absolute maxi-mum rating conditions for extended periods may affect
reliability.
TERM must not exceed Vcc + 10% for more than 25% of the cycle time or 10ns
2. V
maximum, and is limited to
& Industrial
-0.5 to +7.0-0.5 to +7.0V
-55 to + 125-55 to +135oC
-55 to + 120-65 to +150oC
5050mA
< 20mA for the period of VTERM > Vcc + 10%.
Capacitance (TA = +25°C, f = 1.0mhz)
SymbolParameter
IN
C
Input CapacitanceVIN = 3dV9pF
OUT
C
Outp ut Cap acitanceV
NOTES:
1. This parameter is determined by device characterization but is not production
tested. TQFP package only.
2. 3dV represents the interpolated capacitance when the input and output signals
switch from 0V to 3V or from 3V to 0V.
(1)
Conditions
OUT
= 3dV10pF
0-7
I/O
OUT
Read Semaphore Flag Data Out (I/O0-I/O7)
______
0 and read from all I/O's. These eight semaphores are addressed by A0 - A2.
MilitaryUnit
(1)
Not Allowed
Maximum Operating Temperature
and Supply Voltage
Grade
Military-55
Commercial0OC to + 70OC0V 5.0V + 10%
Industrial-40
NOTES:
1. This is the parameter T
2. Industrial temperature: for other speeds, packages and powers contact your
2940 tbl 04
sales office.
Recommended Operating
Conditions
SymbolParameterMin.Typ.Max.Unit
CC
V
Supply Voltag e4.55.05.5V
GNDGround000V
IH
Inp ut Hig h Voltage2.2
V
(2)
Max.Unit
2940 tbl 07
IL
V
Inp ut Low Voltage-0.5
NOTES:
IL > -1.5V for pulse width less than 10ns.
1. V
TERM must not exceed Vcc + 10%.
2. V
5
(1)
Mode
(1,2)
Ambient
TemperatureGNDVcc
O
C to+125OC0V 5.0V + 10%
O
C to + 85OC0V 5.0V + 10%
A.
(1)
____
____
2940 tbl 03
2940 tbl 05
(2)
6.0
0.8V
2940 tbl 06
V
IDT7007S/L
High-Speed 32K x 8 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range
(VCC = 5.0V ± 10%)
7007S7007L
SymbolParameterTest Conditions
|ILI|Input Leakage Current
|Output Leakage Current
|I
LO
OL
V
V
NOTE:
1. At Vcc
Output Low VoltageIOL = 4mA
Output High VoltageIOH = -4mA2.4
OH
< 2.0V, input leakages are undefined.
(1)
VCC = 5.5V, VIN = 0V to V
CE = V
IH
, V
= 0V to V
OUT
CC
CC
___
___
___
DC Electrical Characteristics Over the Operating
(1,6)
Temperature and Supply Voltage Range
SymbolParameterTest ConditionVersi on
CC
I
Dynamic Ope rating
Current
(Both Ports Active )
SB1
Standb y Current
I
(Both Ports - TTL Level
Inputs)
SB2
Standb y Current
I
(One Port - TTL Leve l
Inputs)
SB3
Full Standb y Current
I
(Both Ports - All CMOS
Level Inputs)
IL
, Outputs Open
= V
CE
IH
SEM = V
(3)
MAX
f = f
L
R
=
CE
SEMR = SEML = V
MAX
f = f
"A"
CE
Active Port Outputs Open,
MAX
f=f
SEMR = SEML = V
Both Ports
R
> VCC - 0.2V
CE
IN
> VCC - 0.2V o r
V
VIN <
IH
= V
CE
(3)
= VIL and CE
(3)
L
and
CE
0.2V, f = 0
(4)
IH
IH
"B"
= V
(5)
IH
SEMR = SEML > VCC - 0.2V
SB4
Full Standb y Current
I
(One Port - All CMOS
Level Inputs)
"A"
< 0.2V and
CE
CE
"B"
> VCC - 0.2V
(5)
SEMR = SEML > VCC - 0.2V
IN
> VCC - 0.2V or VIN < 0.2V
V
Active Port Outputs Open
(3)
MAX
f = f
NOTES:
1. 'X' in part numbers indicates power rating (S or L)
CC = 5V, TA = +25°C, and are not production tested. ICCDC = 120mA (Typ.)
2. V
3. At f = f
MAX, address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/tRC, and using AC Test Conditions of input
levels of GND to 3V.
4. f = 0 means no address or control lines change.
5. Port "A" may be either left or right port. Port "B" is the opposite from port "A".
6. Industrial temperature: for other speeds, packages and powers contact your sales office.
COM' LSL190
MIL &
IND
COM' LS
MIL &
IND
COM' L
MIL &
IND
COM' L
MIL &
IND
COM' L
MIL &
IND
(VCC = 5.0V ± 10%)
7007X15
Com'l Only
(2)
190
___
S
___
L
L3535
___
S
___
L
SL125
125
___
S
___
L
SL1.0
0.2
___
S
___
L
SL120
120
___
S
___
L
10
10
0.4
___
Max.Typ.
325
285
220
190
190
160
180
180
___
___
85
60
___
___
115
115
___
___
15
5
0.2
___
___
110
110
___
___
7007X20
Com'l Only
(2)
___
___
30
30
___
___
___
___
1.0
___
___
___
___
___
___
___
2.4
Max.Typ.
315
275
___
___
85
60
___
___
210
180
___
___
15
5
___
___
185
160
___
___
5µA
5µA
0.4V
___
7007X25
Com'l &
Military
(2)
Max.
170
305
170
265
170
345
170
305
25
25
25
25
105
105
105
105
1.0
0.2
1.0
02.
100
100
100
100
8560mA
100
80
200
170
230
200
15
5
30
10
175
160
200
175
UnitMin.Max.Min.Max.
V
2940 tbl 08
UnitTyp.
mA
mA
mA
mA
2940 tbl 09
6
IDT7007S/L
High-Speed 32K x 8 Dual-Port Static RAM Military, Industrial and Commercial Temperature Ranges
DC Electrical Characteristics Over the Operating
(1,6)
Temperature and Supply Voltage Range
SymbolParameterTest ConditionVersion
I
I
SB1
I
SB2
I
SB3
CC
Dynamic Operating Current
(Both Ports Active)
Standby Current
(Bo th P orts - TTL Leve l
Inp uts)
Standby Current
(One Port - TTL Level Inputs)
Full Standby Current (Both
Ports - All CMOS Level
Inp uts)
CE = V
, Outputs Open
IL
SEM = V
IH
(3)
f = f
MAX
CE
= CER = V
L
SEMR = SEML = V
f = f
MAX
CE
= VIL and CE
"A"
Active Port Outputs Open,
f=f
MAX
SEMR = SEML = V
IH
(3)
(3)
IH
= V
"B"
IH
Both Ports CEL and
CE
> VCC - 0.2V
R
> VCC - 0.2V or
V
IN
VIN <
0.2 V, f = 0
(4)
SEMR = SEML > VCC - 0.2V
(5)
IH
(con't.)(VCC = 5.0V ± 10%)
COM' LSL160
MIL &
IND
COM' LS
MIL &
IND
COM' LS
MIL &
IND
COM' LSL1.0
MIL &
IND
7007X35
Com'l &
Military
(2)
Max.Typ.
295
160
____
S
____
L
20
L
20
____
S
____
L
95
L
95
____
S
____
L
255
335
295
85
60
100
80
185
155
215
185
15
0.2
____
S
____
L
5
30
10
7007X55
Com'l, Ind
& Military
(2)
150
150
150
150
20
20
13
13
85
85
85
85
1.0
0.2
1.0
0.2
Max.
270
230
310
270
85
60
100
80
165
135
195
165
15
5
30
10
UnitTyp.
mA
mA
mA
mA
I
SB4
NOTES:
1. 'X' in part numbers indicates power rating (S or L)
CC = 5V, TA = +25°C, and are not production tested. ICCDC = 120mA (Typ.)
2. V
3. At f = f
AC Test Conditions of input levels of GND to 3V.
4. f = 0 means no address or control lines change.
5. Port "A" may be either left or right port. Port "B" is the opposite from port "A".
6. Industrial temperature: for other speeds, packages and powers contact your sales office.
Full Standby Current
(One Port - All CMOS Level
Inp uts)
MAX, address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/tRC, and using
CE
< 0.2V and
"A"
CE
> VCC - 0.2V
"B"
(5)
SEMR = SEML > VCC - 0.2V
> VCC - 0.2V or VIN < 0.2V
V
IN
Active Port Outputs Open
(3)
f = f
MAX
COM' LS
MIL &
IND
90
L
90
____
S
____
L
160
135
190
165
80
135
80
110
80
165
80
140
mA
2940 t bl 1 0
7
Loading...
+ 14 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.