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7025ERPQS-45 Datasheet(PDF) 1 Page - Maxwell Technologies |
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7025ERPQS-45 Datasheet(HTML) 1 Page - Maxwell Technologies |
1 / 20 page 1 All data sheets are subject to change without notice (619) 503-3300- Fax: (619) 503-3301- www.maxwell.com (8K x 16-Bit) Dual Port RAM 7025E ©2002 Maxwell Technologies All rights reserved. High-Speed CMOS 08.15.02 Rev 2 FEATURES: • 8K x 16-bit dual port RAM - Stand Alone - Master Slave •RAD-PAK® radiation-hardened against natural space radiation • Total dose hardness: - > 100 krad (Si), depending upon space mission • Excellent Single Event Effects: -SEL TH LET = >100 MeV/mg/cm 2 -SEU TH LET = 7 MeV/mg/cm 2 • Package: -84 Pin RAD-PAK® quad flat pack • Separate upper byte and lower byte control for multiplexed bus compatibility • High speed access time: 35/45 ns • Expandable to 32 bits or more using master/slave select when cascading • High speed CMOS technology -TTL compatible, single 5V power supply -Interrupt flag for port-to-port communication -On chip port arbitration logic -Asynchronous operation from either port DESCRIPTION: Maxwell Technologies’ 7025E Dual Port RAM High Speed CMOS® microcircuit features a greater than 100 krad (Si) total dose tolerance, depending upon space mission. The 7025E is designed to be used as a stand-alone 128k-bit Dual Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 32- bit or more word systems. This design results in full-speed, error-free operation without the need for additional discrete logic. The 7025E provides two independent ports with sepa- rate 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 CS permits the on-chip circuitry of each port to enter a very low standby power mode. Maxwell Technologies' patented RAD-PAK® packaging technol- ogy incorporates radiation shielding in the microcircuit pack- age. It eliminates the need for box shielding while providing the required radiation shielding for a lifetime in orbit or space mission. In a GEO orbit, RAD-PAK provides greater than 100 krad (Si) radiation dose tolerance. This product is available with screening up to Class S. Logic Diagram |
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