• High-speed access
—Military: 25/35/55/100ns (max.)
—Commercial: 25/35/55/100ns (max.)
—Commercial: 20ns 7130 in PLCC and TQFP
• Low-power operation
—IDT7130/IDT7140SA
—Active: 550mW (typ.)
—Standby: 5mW (typ.)
—IDT7130/IDT7140LA
—Active: 550mW (typ.)
—Standby: 1mW (typ.)
• MASTER IDT7130 easily expands data bus width to
16-or-more-bits using SLAVE IDT7140
• On-chip port arbitration logic (IDT7130 Only)
•
BUSY
output flag on IDT7130;
• Interrupt flags for port-to-port communication
• Fully asynchronous operation from either port
• Battery backup operation–2V data retention (LA only)
• TTL-compatible, single 5V ±10% power supply
• Military product compliant to MIL-STD-883, Class B
• Standard Military Drawing #5962-86875
• Industrial temperature range (–40°C to +85°C) is available, tested to military electrical specifications
BUSY
input on IDT7140
IDT7130SA/LA
IDT7140SA/LA
DESCRIPTION
The IDT7130/IDT7140 are high-speed 1K x 8 Dual-Port
Static RAMs. The IDT7130 is designed to be used as a
stand-alone 8-bit Dual-Port RAM or as a "MASTER" DualPort RAM together with the IDT7140 "SLAVE" Dual-Port in
16-bit-or-more word width systems. Using the IDT MASTER/SLAVE Dual-Port RAM approach in 16-or-more-bit
memory system applications results in full-speed, error-free
operation without the need for additional discrete logic.
Both devices provide 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 IDT's CMOS high-performance technology, these devices typically operate on only 550mW of
power. Low-power (LA) versions offer battery backup data
retention capability, with each Dual-Port typically consuming 200µW from a 2V battery.
The IDT7130/IDT7140 devices are packaged in 48-pin
sidebraze or plastic DIPs, LCCs, or flatpacks, 52-pin PLCC,
and 64-pin TQFP and STQFP. Military grade product is
manufactured in compliance with the latest revision of MILSTD-883, Class B, making it ideally suited to military temperature applications demanding the highest level of performance and reliability.
FUNCTIONAL BLOCK DIAGRAM
OE
CE
R/
I/O0R-I/O7R
BUSY
INT
2689 drw 01
W
A9R
A0R
R
R
R
R
(2)
R
OE
L
CE
L
R/
W
L
I/O0L- I/O7L
(1,2)(1,2)
BUSY
L
A9L
A0L
NOTES:
1. IDT7130 (MASTER):
drain output and requires pullup
resistor of 270Ω.
IDT7140 (SLAVE):
2. Open drain output: requires pullup
resistor of 270Ω.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
BUSY
BUSY
is open
is input.
INT
(2)
L
Address
Decoder
R/
CEOE
L
L
W
L
10
I/O
Control
MEMORY
ARRAY
ARBITRATION
and
INTERRUPT
LOGIC
I/O
Control
Address
Decoder
10
CE
R
OE
R
R/
W
R
MILITARY AND COMMERCIAL TEMPERATURE RANGESOCTOBER 1996
1. All Vcc pins must be connected to the power supply.
2. All GND pins must be connected to the ground supply.
3. This text does not indicate orientation of the actual part-marking.
10
11
12
13
14
15
16
17
18
19 20 21 22 2325 26 27 28 29 3024
I/O3L
48-PIN LCC/ FLATPACK
I/O5L
I/O4L
IDT7130/40
L48-1
&
F48-1
TOP VIEW
I/O7L
I/O6L
GND
I/O0R
(3)
I/O1R
I/O2R
R
R
BUSY
INT
I/O4R
I/O3R
R
OE
42
41
40
39
38
37
36
35
34
33
32
31
I/O5R
A0R
A1R
A2R
A3R
A4R
A5R
A6R
A7R
A8R
A9R
I/O7R
I/O6R
2689 drw 03
6.012
IDT7130SA/LA AND IDT7140SA/LA
HIGH-SPEED 1K x 8 DUAL-PORT STATIC RAM WITH INTERRUPTSMILITARY AND COMMERCIAL TEMPERATURE RANGES
ABSOLUTE MAXIMUM RATINGS
(1)
SymbolRatingCommercialMilitaryUnit
(2)
V
TERM
Terminal Voltage–0.5 to +7.0–0.5 to +7.0V
with Respect to
GND
AOperating0 to +70–55 to +125°C
T
Temperature
BIASTemperature–55 to +125–65 to +135°C
T
Under Bias
STGStorage–55 to +125–65 to +150°C
T
Temperature
I
OUTDC Output5050mA
RECOMMENDED
DC OPERATING CONDITIONS
SymbolParameterMin.Typ. Max. Unit
V
CCSupply Voltage4.55.05.5V
GNDSupply Voltage000V
V
IHInput High Voltage2.2—6.0
V
ILInput Low Voltage –0.5—0.8V
NOTES:
1. V
IL (min.) > -1.5V for pulse width less than 10ns.
2. V
TERM must not exceed Vcc + 0.5V.
(1)
(2)
2689 tbl 02
V
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 sections of the specification is not
implied. Exposure to absolute maximum rating conditions for extended
periods may affect reliability.
2. VTERM must not exceed Vcc + 0.5 for more than 25% of the cycle time
or 10ns maximum, and is limited to
+ 0.5V.
< 20mA for the period of VTERM > Vcc
2689 tbl 01
RECOMMENDED OPERATING
TEMPERATURE AND SUPPLY VOLTAGE
Ambient
GradeTemperatureGNDV
Military–55 °C to +125°C0V5.0V ± 10%
Commercial0°C to +70°C0V5.0V ± 10%
CC
2689 tbl 03
DC ELECTRICAL CHARACTERISTICS OVER THE
OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE