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IDT7134SA45L48I Datasheet(PDF) 1 Page - Integrated Device Technology |
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IDT7134SA45L48I Datasheet(HTML) 1 Page - Integrated Device Technology |
1 / 11 page 1 JUNE 1999 DSC-2720/9 IDT7134SA/LA HIGH-SPEED 4K x 8 DUAL-PORT STATIC SRAM Features x x x x x High-speed access Military: 25/35/45/55/70ns (max.) Industrial: 55ns (max.) Commercial: 20/25/35/45/55/70ns (max.) x x x x x Low-power operation IDT7134SA Active: 700mW (typ.) Standby: 5mW (typ.) IDT7134LA Active: 700mW (typ.) Standby: 1mW (typ.) x x x x x Fully asynchronous operation from either port x x x x x Battery backup operation2V data retention x x x x x TTL-compatible; single 5V (±10%) power supply x x x x x Available in 48-pin DIP, LCC, Flatpack and 52-pin PLCC x x x x x Military product compliant to MIL-PRF-38535 QML x x x x x Industrial temperature range (40°C to +85°C) is available for selected speeds Functional Block Diagram COLUMN I/O COLUMN I/O MEMORY ARRAY LEFT SIDE ADDRESS DECODE LOGIC RIGHT SIDE ADDRESS DECODE LOGIC R/ WL OEL A0L-A11L I/O0L-I/O7L 2720 drw 01 CEL A0R-A11R I/O0R-I/O7R OER CER R/ WR Description The IDT7134 is a high-speed 4K x 8 Dual-Port Static RAM designedtobeusedinsystemswhereon-chiphardwareportarbitration is not needed. This part lends itself to those systems which cannot tolerate wait states or are designed to be able to externally arbitrate or withstand contention when both sides simultaneously access the same Dual-Port RAM location. TheIDT7134providestwoindependentportswithseparatecontrol, address, and I/O pins that permit independent, asynchronous access forreadsorwritestoanylocationinmemory.Itistheusersresponsibility to ensure data integrity when simultaneously accessing the same memory location from both ports. An automatic power down feature, controlled by CE, permits the on-chip circuitry of each port to enter a very low standby power mode. FabricatedusingIDTsCMOShigh-performancetechnology,these Dual-Port typically operate on only 700mW of power. Low-power (LA) versions offer battery backup data retention capability, with each port typically consuming 200µW from a 2V battery. The IDT7134 is packaged on either a sidebraze or plastic 48-pin DIP, 48-pin LCC, 52-pin PLCC and 48-pin Flatpack. Military grade product is manufactured in compliance with the latest revision of MIL- PRF-38535 QML, making it ideally suited to military temperature applicationsdemandingthehighestlevelofperformanceandreliability. |
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