Electronic Design

Test And Measurement

FLASH 750 Focuses On Lower Test Cost For Cell-Phone Memory Chips
An integrated test cell, the FLASH 750 memory test system boasts a new architecture that reduces test costs for flash memory. The device delivers low cost of ownership and high throughput for today's cell-phone flash. In addition, it can provide up to 100 MHz of performance for advanced probe testing.

Distributed flash processing (DFP), the system's proprietary architecture, significantly reduces test times. DFP uses a processor-per-site architecture, allowing each device-under-test to run asynchronously. This feature accommodates the nondeterministic test flows of flash devices. With flash devices, it's uncertain how long it will take to complete a test step once it's begun. The DFP architecture avoids that problem by eliminating wait times in the test flow.

Containing 32 devices in parallel for cell-phone NOR flash devices, the FLASH 750 breaks the high parallelism at sort test barrier. It's also capable of testing up to 128 devices in parallel on a single prober for some low pin-count serial-memory devices.

The FLASH 750's ±500-ps accuracy is transmitted to the bond pad through a high parallelism probe card and interface technology leveraged from the company's DRAM product group.

Pricing for the FLASH 750 starts at $750,000.

Teradyne Inc., 30801 Agoura Rd., Agoura Hills, CA 91301; (818) 991-2900; fax (818) 735-5623; www.teradyne.com.

Programmable Power Supply Features Full Controls And Display
The DLM series 600-W power supply comes in a chassis that measures 1.75 in. high (1U) by 9.5 in. wide. These programmable dc sources provide voltage outputs of 8, 20, 40, and 60 V dc with 10- to 75-A output currents. The high-frequency output converter comes with zero voltage transmission (ZVT) switching, resulting in low ripple and noise. No user setup is required by the autoranging ac input for 90- to 132-V ac or 180- to 264-V ac single-phase input, with a 47- to 63-Hz universal frequency range. Rackmount units allow single-unit or side-by-side mounting.

Voltage and current adjustment knobs are included on the front panel controls. So are push buttons for power on, output on, local/remote, voltage and current preview, and overvoltage protection (OVP). Digital LEDs display voltage, current, and OVP settings. LED indicators show the status of output on/off, remote operation, OVP, fault, voltage mode, current mode, and external off.

Certified to meet international CE safety standards and UL and CSA requirements, the DLM models start at $1175.

Sorensen, 9250 Brown Deer Rd., San Diego, CA 92121-2294; (858) 450-0085; fax (858) 458-0267; www.sorensen.com.

DSOs Capture Up To 2 Mpoints/channel At Rates To 1 GHz
The LT364 and LT364L four-channel oscilloscopes can sample at rates to 1 Gsample/s and store up to 500 kpoints/channel (LT364) or 2 Mpoints/channel (LT364L) when operting on two channels. Both tasks are accomplished by interleaving the analog-to-digital converters and memories when one or two of the oscilloscope's input channels are activated.

These devices come with a logic trigger capability, also known as a pattern trigger. This trigger combines the input channels and the external trigger input to form a five-state logic trigger. Users can specify the trigger state as "true" for any combination of "logic high" and "logic low" status on five inputs. Each input can have a different definition of the levels for "high" or "low."

A video trigger permits up to 1500 lines and one, two, four, or eight fields, along with the ability to trigger on PAL, NTSC, SECAM, or nonstandard video formats. The 10BaseT Ethernet port lets users control the DSO from a PC via the network. It allows users to get screen images or the complete set of waveform data from the DSO back to the PC for viewing, analysis, and printing. Customers can obtain free software utilities from the company's web site as well.

The LT364 costs $10,990, and the LT364L costs $15,990. Delivery is four to six weeks ARO.

LeCroy, 700 Chestnut Ridge Rd., Chestnut Ridge, NY 10977-6499; (914) 425-2000; www.lecroy.com.

TAGS: Components
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