UT8Q1024K8

Standard Products Data Sheet January, 2003 QCOTSTM UT8Q1024K8 SRAM FEATURES ‰ 25ns maximum (3.3 volt supply) address access time ‰ Dual cavity package contains two (2) 512K x 8 industrystandard asynchronous SRAMs; the control architecture allows operation as an 8-bit data width ‰ TTL compatible inputs and output levels, three-state bidirectional data bus ‰ Typical radiation performance - Total dose: 50krad(Si) - SEL Immune >80 MeV-cm2/mg - LETTH(0.25) = >10 MeV-cm2/mg - Saturated Cross Section cm2 per bit, 5.0E-9 - <1E-8 errors/bit-day, Adams 90% geosynchronous heavy ion ‰ Packaging options: - 44-lead bottom brazed dual CFP (BBTFP) (4.6 grams) ‰ Standard Microcircuit Drawing 5962-01532 - QML T and Q compliant part INTRODUCTION The QCOTSTM UT8Q1024K8 Quantified Commercial Off-theShelf product is a high-performance 1M byte (8Mbit) CMOS static RAM built with two individual 524,288 x 8 bit SRAMs with a common output enable. Memory access and control is provided by an active LOW chip enable (En), an active LOW output enable (G). This device has a power-down feature that reduces power consumption by more than 90% when deselected. Writing to each memory is accomplished by taking one of the chip enable (En) inputs LOW and write enable (Wn) inputs LOW. Data on the I/O pins is then written into the location specified on the address pins (A0 through A18). Reading from the device is accomplished by taking one of the chip enable (En) and output enable (G) LOW while forcing write enable...