[dfx/incl/99dfx.htm]
Electrical/Electronics . . . DISCRETES
& HYBRIDS
Top Product
- Numerous on-chip peripherals
- C-friendly instruction set
High-performance 8-bit microprocessor.
The Rabbit 2000 is ideal for systems that require a low-cost microprocessor with
extensive software capability, offering an alternative to 16- and 32-bit processors.
On-chip peripherals include 4 serial ports, glueless memory and I/O interface, remote cold
boot, on-board slave port, 40 parallel I/O lines, 7 different timers, precision pulse
generation hardware, and a battery backable time/date clock. The Rabbit 2000 does not
require an in-circuit emulator. It can handle C-language applications of up to one
megabyte, or 50,000+ C statements. The processor's architecture is an updated 64180/Z180
style, enhanced through changes to the op codes. Floating point routines require less than
12 ms at maximum clock speed. Rabbit Semiconductor, Davis, CA. 530-
757-8400. http://www.rabbitsemiconductor.com
Free Info - Circle 430
 A-to-D converter. The ADS8321 is a low-cost, 16-bit
analog-to-digital converter developed specifically for industrial data acquisition and
instrumentation systems. Requiring only 4.5 mW when operating at full sampling rate (100
kHz), the device features a power-down mode that reduces supply current to 3 µA max. The
ADS8321, offered in a MSOP-8 package, has a bipolar input range, 5V operation, and a
synchronous serial interface. Burr-Brown Corp, Tuscon, AZ. 800-548-6132. http://www.burr-brown.com
Free Info - Circle 431
 Switched filter log amp. The Model 0-SDU-2127 assembly
provides independently-controlled, TTL-selectable bandwidths of 3 MHz, 12.5 MHz, and
all-pass response at 160 MHz center frequency for each of two isolated channels. Each
channel has a log video output with greater than 70 dB dynamic range, and 0±2 dBm limited
IF output, with 2 degrees RMS phase tracking at center frequency between channels. Signal
Technology Corp, Olektron Operation, Beverly, MA. 978-524-7444. http://www.sigtech.com
Free Info - Circle 432
 Charge management IC. Targeted for portable electronics
applications such as cellular telephones, PDAs and digital cameras, the BENCHMARQ bq2057
series linear Lithium-Ion (Li-Ion) ICs integrate a number of battery management features
into an 8 pin package. The bq2057 handles battery conditioning, high accuracy current and
voltage regulation, charge termination, charge-status indication, battery temperature
monitoring, and Autocomp charge-rate compensation. Unitrode Corp, Merrimack,
NH. 603-424-2410. http://www.benchmarq.com
Free Info - Circle 433
 Integrated data-bus terminal. The Enhanced Mini-ACE series of
communication terminals serve as interfaces between a host processor and a MIL-STD-1553
bus. Configurations include RT only and BC/RT/MT versions with 4K words of internal RAM,
and 64K-word internal RAM with RAM parity checking. They are available with a choice of 5V
or 3.3V internal logic, and 5V transceivers with options for 1553, McAir, or MIL-STD-1760
compatibility. Data Device Corp, Bohemia, NY. 516-567-5600. http://www.ddc-web.com
Free Info - Circle 434
 Data acquisition on a chip. Offering a convergence of
high-performance data conversion, program and data flash memory and an 8-bit
microcontroller, all in one package, the ADuC824 MicroConverter also provides a
programmable sigma delta converter. Low power demands make the component suitable for
calibrating and conditioning analog and digital sensor signals in portable applications,
and medical instrumentation. Analog
Devices, Norwood, MA. 800-ANALOGD. http://www.analog.com
Free Info - Circle 435
 Ultra-miniature 1W DC/DC converters. Standard features of the
LF100S series of SMT-mountable, single output converters include input/output isolation of
1000 VDC, efficiency up to 82%, and output power protection. Eight models operate from
input voltages of either 5 or 12 VDC, and provide outputs of 5, 9, 12 and 15 VDC. All
models are specified for operation over a range of -25° to 85°C, with no heat sink
required. MicroPower Direct, Stoughton, MA. 781-344-8226. http://www.micropowerdirect.com
Free Info - Circle 436
 Single chip parallel port device. The QRX 1284X2 chip provides
complete IEEE 1284 parallel port line filtering and termination in a single 28-pin QSOP
package. In each chip there are 17 capacitors, 17 pull-up resistors and nine termination
resistors. For each of the 17 signal lines, a diode structure provides 8 kV of ESD
protection. The component uses thin film tantalum nitride on silicon technology for its
structure. International Resistive Company Inc, Wirewound and Film
Technologies Div, Boone, NC. 704-264-8861. http://www.irctt.com
Free Info - Circle 437
 Sub-miniature oscillators. Designed for portable, telecom,
data and test equipment applications, the 312BE temperature-compensated crystal oscillator
has low-profile packaging with a ceramic base and metal cover. Frequency range is 12,600
to 19,800 MHz, and the frequency tolerance at 25°C is ±0.5 PPM. With a supply voltage of
2.85 to 3.15V, the TCXO outputs a clipped sine wave with a minimum p-to-p level of 0.8V. Fox
Electronics, Fort Myers, FL. 888-GET-2-FOX. http://www.foxonline.com
Free Info - Circle 438
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