Features: • 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; BUSY input on IDT7140
• Interrupt flags for port-to-port communication
• Fully asynchronous operation from either port
• Battery backup operation2V 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
Pinout
Specifications
|
Symbol |
Rating |
Commercial |
Military |
Unit |
|
VTERM(2) |
Terminal Voltage
with Respectto GND |
0.5 to +7.0 |
0.5 to +7.0 |
V |
|
TA |
OperatingTemperature |
0 to +70 |
55 to +125 |
°C |
|
TBIAS |
TemperatureUnder Bia |
55 to +125 |
65 to +135 |
°C |
|
TSTG |
StorageTemperature |
55 to +125 |
65 to +150 |
°C |
|
IOUT |
DC OutputCurrent |
50 |
50 |
mA |
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 < 20mA for the period of VTERM > Vcc + 0.5V.DescriptionThe IDT7140SA 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" Dual- Port RAM together with the IDT7140 "SLAVE" Dual-Port in16-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-freeoperation 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 inmemory. An automatic power down feature, controlled byCE, 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 of the IDT7140SA offer battery backup data retention capability, with each Dual-Port typically consuming 200mW from a 2V battery.
The IDT7140SA 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.
IDT7140SA Data Sheet
