Cypress Delivers 100 MHz Clocks for Next-Generation PC Designs; New Devices Offer Flexible, Low EMI Solutions.SAN JOSE San Jose, city, United States San Jose (sănəzā`, săn hōzā`), city (1990 pop. 782,248), seat of Santa Clara co., W central Calif.; founded 1777, inc. 1850. , Calif.--(BUSINESS WIRE)--March 16, 1998--Cypress Semiconductor today introduced a line of 100MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc. CY228x clock generators and CY231xNZ SDRAM (Synchronous DRAM) A type of dynamic RAM (DRAM) memory chip that has been widely used since the late 1990s. SDRAM chips eliminated wait states by dividing the chip into two cell blocks and interleaving data between them. buffers for next generation PC designs. The new family of products enables PC designers to take advantage of the shift from 66MHz to higher performance 100MHz system bus frequencies. The clock products are usable with the latest generation of core logic chipsets and support processors in Slot and Socket packages. The CY228x and CY231xNZ are designed for low EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. and offer a number of options to allow designers maximum flexibility in implementing their systems. The CY228x family includes 48-pin all-in-one motherboard solutions as well as compact 28-pin solutions, all of which can be used with separate CY321xNZ SDRAM buffer chips. The two-chip solution allows designers to minimize system noise by placing the buffer chip closer to the SDRAM modules, thus eliminating long 100MHz traces on the motherboard. The CY228x devices are also available with Cypress's proprietary spread spectrum technology, a new technique that involves controlled spreading of the output frequencies to reduce overall system EMI. "As clock frequencies increase, our advanced process technology and manufacturing prowess become a major advantage in this market," said Piyush Sevalia, Cypress's timing technology marketing manager. "Major PC manufacturers are already employing these chips in their next-generation systems." CY228x Specific Options The CY228x devices provide all the outputs necessary to control system, bus and peripheral components in server, workstation, desktop and mobile PCs. The CY2280, CY2281 and CY2282 are optimized for Pentium II The successor to the Pentium Pro from Intel. Pentium II refers to the CPU chip or the PC that uses it. Code named "Klamath," the Pentium II was a Pentium Pro with MMX multimedia instructions. designs whereas the CY2283 and CY2284 are targeted towards Socket 7 designs using chipsets from Acer Labs and VIA Technologies. The CY231xNZ can be used as SDRAM buffer companions to any of the CY228x family and provide support for up to 4 SDRAM DIMMs or up to 6 SO-DIMMs. The clock outputs for each device are shown below. -0-
Part No. Description CPU/PCI SDRAM APIC/REF USB/AGP Package Avail.
CY2280 Pentium II 4/8 -- 2/3 2/-- 48-SSOP Now
clock
generator
CY2281 Pentium II 2/6 -- --/1 --/-- 28-SSOP Now
clock
generator
CY2282 Pentium II 2/7 -- 1/1 2/-- 28-SOIC Now
clock
generator
CY2283 Pentium II, 4/5 12 --/1 1/2 48-SSOP Now
K6, 6x86
clock
generator
CY2284 Pentium II, 3/5 0 0/1 1/2 28-SOIC April
K6, 6x86
clock
generator
CY2310NZ 10 Output 10 28-SSOP Now
SDRAM buffer
CY2313NZ 13 Output 13 28-SOIC Now
SDRAM buffer
CY2314NZ 14 Output 14 28-SOIC Now
SDRAM buffer
CY2318NZ 18 output 18 48-SSOP Now
SDRAM buffer
-0- Price and Availability The CY228x and CY231x devices are available now. Pricing for the CY228x family starts at $3.15 in 10,000-unit quantities, and the CY231x family starts at $2.75, also in 10,000-unit volumes. Cypress Semiconductor Cypress Semiconductor is a semiconductor design and manufacturing company. It began operations in 1982 and listed publicly in 1986. Two years later, the company shifted over to the New York Stock Exchange under the symbol, (NYSE: CY). Corporation is an international supplier of high-performance integrated circuits Integrated circuits Miniature electronic circuits produced within and upon a single semiconductor crystal, usually silicon. Integrated circuits range in complexity from simple logic circuits and amplifiers, about 1/20 in. (1. with worldwide headquarters in San Jose. The company provides a broad range of products for leading computer, networking, and telecommunications companies worldwide. Cypress's product line includes static RAM A fast memory technology that requires power to hold its content. Static RAM (SRAM, S-RAM) is used for high-speed registers, caches and relatively small memory banks such as a frame buffer on a display adapter. and specialty memories; programmable logic devices (PLDs); data communications products; FCT FCT Faculdade de Ciências e Tecnologia (Portuguese University) FCT Fundamentals of Computation Theory FCT Fundação para a Ciência e a Tecnologia (Portuguese Science and Technology Foundation) Logic, timing devices, and USB USB in full Universal Serial Bus Type of serial bus that allows peripheral devices (disks, modems, printers, digitizers, data gloves, etc.) to be easily connected to a computer. microcontrollers. Its shares are listed on the New York Stock Exchange New York Stock Exchange (NYSE) World's largest marketplace for securities. The exchange began as an informal meeting of 24 men in 1792 on what is now Wall Street in New York City. under the symbol CY. The company's worldwide web site is http://www.cypress.com. -0- Note to Editors: Product names are trademarks of their respective companies. CONTACT: Cypress Semiconductor Don Parkman, 408/943-2817 Joe McCarthy, 408/943-2902 |
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