1-Mbit flash memory accesses in 45 nsec.
Organized as 128k38 bits, the IS28F010 flash memory accesses data in 45 nsec over a temperature range of40 to +858C. Maximum current consumption is 30 mA in active mode and 100 mA in standby mode. The part comes in 32-lead TSOP, PLCC, and plastic DIP configurations, as well as versions with access times of 70, 90, and 120 nsec. A 45-nsec PLCC device costs $7.56 (1000). Integrated Silicon Solutions Inc, Sunnyvale, CA. (408) 733-4774.
RF power-amplifier ICs work as fast as 850 MHz.
The KGF1607 and KGF1637, two GaAs RF power amplifiers, operate from a 3V supply to frequencies as high as 850 MHz. Both devices deliver a power output of >31.5 dBm and have peak current capabilities of >4.5A at cellular frequencies. Power efficiencies for the ceramic-packaged KGF1607 and plastic-packaged KGF-1637 are >70 and >60%, respectively. Respective prices for the KGF1607 and KGF1637 are $8.76 and $7.60 (1000). Oki Semiconductor, Sunnyvale, CA. (800) 654-6388.
Flash SIMMs store as much as 16 Mbits.
Three 5V flash single in-line memory modules (SIMMs) are based on the 80-pin JEDEC standard footprint. The EDI7F32128C, EDI7F32256C, and EDI7F32512C are organized as 128k332, 256k332, and 512k332 bits, respectively, and provide access times of 70 to 150 nsec, depending on density. The 128k332-bit and 256k332-bit modules come in 68-pin PLCCs. The 120-nsec versions of the EDI7F32128C, EDI7F32256C, and EDI7F32512C cost $84, $140, and $176 (100), respectively. Electronic Designs Inc, Westborough, MA. (508) 366-5151.
Closed-loop buffer IC slews at 1550V/µsec.
Suitable for component- or composite-video, medical-imaging, RF, and telecommunication applications, a family of single and quad closed-loop buffers guarantees a minimum output current of 70 mA, an output swing >±2.5V over temperature into a 50 Ohm load, and the ability to drive capacitive loads >70 pF without oscillations. The single MAX4178 and quad MAX496 buffers have a fixed gain of 1; a 375-MHz,3-dB bandwidth; an 80-MHz, 0.1-dB bandwidth; and a >1400V/µsec slew rate. The single MAX4278 and quad MAX497 ICs have a fixed gain of 2; a 275-MHz,3-dB bandwidth; a 120-MHz, 0.1-dB bandwidth; and >1500V/µsec slew rate. Packaging options for the single buffers include eight-pin µMAX, SO, and plastic DIP; quad parts come in 16-pin narrow SO packages. Maxim Integrated Products, Sunnyvale, CA. (408) 737-7600, ext 6087.
VESA monitor memory chip stores 1 kbit.
The next-generation 24LCS21 CMOS serial EEPROM meets the VESA Data Display Channel specification for plug-and-play operation between PCs and video monitors. The 1-kbit device offers on-chip hardware write protection, and internal enhancements make it more resistant to inadvertent data loss than its predecessor, the 24LC21. The device comes in an eight-pin SOIC or a DIP requiring about 0.06 in.2 of board space. It typically draws 1 mA when active and 10 µA on standby. Microchip Technology Inc, Chandler, AZ. (602) 786-7200.
Ethernet transceiver cuts power requirements.
A mixed-signal coaxial transceiver is compliant with Ethernet II standards, including IEEE 802.3, 10Base5, and 10Base2 implementations. The 78Q8392L draws 50 mA while transmitting and 7 mA while monitoring the line for incoming-message traffic. Most comparable coax transceivers draw >150 mA when transmitting and >100 mA when receiving. The IC provides a complete interface between single-ended coaxial cable signals on a network and Manchester-encoded differential logic signals from a local computer. Packaging options for the 78Q8392L include 16-pin plastic DIPs and 28-pin PLCCs. Evaluation units cost $2.60. Silicon Systems, Tustin, CA. (800) 624-8999, ext 151.
Voltage reference boasts 0.05% output accuracy.
Offered in 5 and 10V versions, the LT1236 voltage reference combines 5-ppm/°C drift with 0.05% output accuracy in an eight-pin SOIC specified for the full industrial-temperature range. The deviceÕs output sources or sinks to 10 mA and settles quickly when driving transient loads. Line and load regulations are typically 0.5 ppm/V and 12 ppm/mA. Noise is specified at <1 ppm from 0.1 to 10 Hz. The LT1236 comes in three performance grades with prices starting at $2.70 (1000). Linear Technology Corp, Milpitas, CA. (408) 432-1900.
I/O controller supports as much as 115.2 kbps.
With eight full-duplex channels and 8-byte-deep buffers, the CL-CD1865 communications controller improves overall system-level throughput for networking applications by transferring data at rates as high as 115.2 kbps. The I/O chip uses three 8-byte FIFO devices per channelÑone each for transmit, receive, and statusÑto reduce the number of interrupts to the host CPU, and its RISC processor performs many of the tasks otherwise executed by the CPU. Housed in a 100-pin PQFP, the CL-CD1865 costs $25 (1000). Cirrus Logic Inc, Fremont, CA. (510) 623-8300.
Logic device comes in space-saving QSOP.
Manufactured in 0.65-µm flash CMOS, the PALCE20V8 erasable-PLD is pin- and function-compatible with generic-array-logic products. The part comes in a 150-mm-wide QSOP with a 25-mm pitch, reducing board space requirements by 65% when compared with a PLCC. In addition to the QSOP, the PALCE20V8 comes in plastic and ceramic DIP, LCC, PLCC, and SOIC configurations. A 25-nsec device costs $3.10 (10,000). Cypress Semiconductor, San Jose, CA. (408) 943-2600.
IEEE 488 CMOS controller is NMOS alternative.
The IOT 7210 IEEE 488 controller chip is a drop-in replacement for NECÕs µPD7210, which is slated to be discontinued. Because the part is form- and function-compatible, you can simply plug the part in without modifying either the software or the pc board. Unlike the NEC NMOS device, the IOT 7210 is fabricated in CMOS, resulting in lower power consumption. It draws 2 mA, compared to 180 mA with the µPD7210. The CMOS circuitry also runs 73 faster than its NMOS counterpart and adheres to IEEE 488 specifications. Housed in a 40-pin DIP, the IOT 7210 costs $10 (1000). Surface-mount versions are also available. IOtech Inc, Cleveland, OH. (216) 439-4091.
SCSI II controller quickly transfers data.
A single-chip integration of the Fast SCSI II 16-bit host adapter, the GM82C700 controller IC provides the bridge between a PC AT bus and SCSI modules and peripherals. Equipped with a 128-byte FIFO buffer, the device handles synchronous data transfers at 5 Mbps and asynchronous data transfers at 10 Mbps. Packaging options for the GM82C700 include 80-pin QFP and 68-pin PLCC configurations. The controller costs about $3.50 (OEM). LG Semicon America, San Jose, CA. (408) 432-5000.