(China (Mainland))
Product Summary
The IDT71342SA25PF is an extremely high-speed 4K x 8 Dual-Port Static RAM with full on-chip hardware support of semaphore signalling between the two ports. The IDT71342SA25PF 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. To assist in arbitrating between ports, a fully independent semaphore logic block is provided. This block contains unassigned flags which can be accessed by either side; however, only one side can control the flag at any time. An automatic power down feature, controlled by CE and SEM, permits the on-chip circuitry of each port to enter a very low standby power mode (both CE and SEM High). Fabricated using IDTs CMOS high-performance technology, this device typically operates on only 500mW of power. Low-power (LA) versions offer battery backup data retention capability, with each port typically consuming 200mW from a 2V battery. The device is packaged in either a 64-pin TQFP, thin quad plastic flatpack, or a 52-pin PLCC.
Parametrics
Absolute maximum ratings: (1)Terminal Voltage with Respect to Ground, VTERM: –0.5 to +7.0V(COML), –0.5 to +7.0V(Mil); (2)Operating Temperature, TA: 0 to +70(COML), –55 to +125℃(Mil); (3)Temperature Under Bias, TBIAS: –55 to +125℃(COML), –65 to +135℃(Mil); (4)Storage Temperature, TSTG: –55 to +125℃(COML), –65 to +150℃(Mil); (5)Power Dissipation, PT: 1.5W; (6)DC Output Current, IOUT: 50mA.
Features
Features: (1)High-speed access; (2)Low-power operation; (3)Fully asynchronous operation from either port; (4)Full on-chip hardware support of semaphore signalling between ports; (5)Battery backup operation—2V data retention; (6)TTL-compatible; (7)single 5V (±10%) power supply; (8)Available in plastic packages; (9)Industrial temperature range (–40℃ to +85℃) is available, tested to military electrical specifications.
Diagrams
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 IDT71342SA25PF |
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IC SRAM 32KBIT 25NS 64TQFP |
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IDT71342SA25PF8 |
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IC SRAM 32KBIT 25NS 64TQFP |
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