80-MHz 486DX2. The 80-MHz T1486-DX2 operates from 3.45V and comes in a 168-pin pin-grid-array package. The device costs $80 (10,000). Texas Instruments Inc, Denver, CO. (800) 477-8924, ext 4500.
32-bit microcontroller has two timers and programmable ADC. The 68336 is a 68300 family microcontroller designed for timing-intensive motion- and engine-control applications. The processor integrates a time-processor unit (TPU), a configurable timer module (CTM), and a queued ADC (QADC). The CTM has two 16-bit modulus counters, a 16-bit free-running counter, four double-action capture/compare channels, and four dedicated PWM channels. The TPU has two independent counters for timing control of 16 channels. The TPU provides >20 timing algorithms for engine management and motion control. The QDAC provides 10-bit resolution on 16 channels and accesses 41 channels using external multiplexers with on-chip control signals. The microcontroller is available in a 160-pin QFP and costs $25.57 (1000). Motorola Microcontroller Technologies Group, Austin, TX. (800) 765-7795, ext 915.
RISC microcontroller has 32-bit internal and 16-bit external buses. The V852 microcontroller is designed for low-power designs requiring large embedded code. The device operates from 2 to 5V with a power consumption of 250 mW at 5V running at 25 MHz and 60 mW at 2.2V when running at 13.5 MHz. According to the company, the microcontroller delivers 29 VAX MIPS performance when operating at 25 MHz. It has 90 kbytes of ROM and 3 kbytes or RAM. On-chip peripherals include a real-time pulse unit with 16-bit timer/counter, a UART, three synchronous serial interfaces, and a PLL clock generator. For complex operations, the device accommodates up to 16 Mbytes of external memory. It is housed in a 100-pin QFP and 120-pin LCC with a typical cost of $20 (10,000). NEC Electronics Inc, Mountain View, CA. (800) 366-9782.
8-bit microcontrollers offer memory and expanded-bus features. The 68HC11E20 is pin-compatible with the 68HC11E9 but has 20 kbytes of on-chip ROM, 512 bytes of on-chip block-protected EEPROM, 768 bytes of on-chip RAM, and an eight-channel, 8-bit ADC. Prices for the device start at $10.19 (10,000). The 68HC11ED0 has 512 bytes of on-chip SRAM, eight bidirectional I/O lines plus three input-only and three output-only lines. The device is pin-compatible with the 68HC11D0, and prices start at $4.94 (10,000). Both the 68HC11E20 and the 68HC11ED0 include a 16-bit timer, power-saving stop and wait modes, and interfaces for both synchronous and asynchronous serial communications. Motorola Microcontroller Technologies Group, Austin, TX. (800) 765-7795, ext 915.
64-bit, 133-MHz RISC µP aims at interactive consumer and embedded applications. A 133-MHz version of the VR4300 µP, optimized to handle digital-media manipulation and interactive computing, is now available in engineering samples. With performance comparable to that of Pentium and PowerPC processors, according to the company, the 64-bit µP churns data at 80 SPECint92, 60 SPECfp92, and 170 Dhrystone MIPS. An ALU executes fast-multiply functions, including double-precision, floating-point operations. Other features include a high-performance memory-management unit, a double-entry translation look-aside buffer, a five-stage pipeline, and 16-kbyte instruction and 8-kbyte data caches. Power dissipation is 2.2W at 3.3V dc. Volume quantities of the 133-MHz VR4300 at $35 each (100,000) will be available in March. NEC Electronics Inc, Mountain View, CA. (800) 366-9782.
24-bit DSP targets high-end consumer, professional audio and video applications. . The DSP56009 single-chip DSP works in full-featured audio and video receivers, digital video-disk players, and digital TV. With 10k words of program ROM and 8.75k words of data RAM on-chip, the 80-MHz DSP can run Dolby AC-3 Surround Sound and ProLogic algorithms, DTS Coherent Acoustic algorithms, and MPEG 1 layer 2 decoding. Third in the Symphony family of DSPs, the DSP56009 includes serial-host, external-memory, and serial-audio interfaces. The chip's parallel architecture executes as many as six operations in one instruction period, and the device has a 24-bit data width. Motorola Microcontroller Technologies Group, Austin, TX. (800) 441-2447.
Alpha µPs add faster versions. The Alpha 21164 and 2106A are now available in 300- and 333-MHz versions. A 333-MHz 21164 registers an estimated SPECint92 performance of 400 and SPECfp92 of 570, and the 300-MHz 21064A reaches a SPECint92 of about 220 and a SPECfp92 of 300. The chips, pin-compatible with previous versions, run high-performance workstations and servers. Digital Equipment Corp, Marlborough, MA. (800) 332-2717.
100-MHz µP takes 3.45V supply. Targeted at both notebook and desktop PC systems, the TI486DX4 µP runs at 100 MHz with a 3.45V power supply. The device also employs a hardware- and software-suspend mode to extend the operating time of portable systems between battery charges. The processor's standard footprint fits into most existing 33- and 66-MHz designs and is Windows 95-compatible. Packaging options include a 168-pin pin-grid array and a 208-pin QFP. Prices start at <$70 (1000). Texas Instruments Inc, Denver, CO. (800) 477-8924, ext 4500.
Embedded controller carries 128-kbyte flash memory. In addition to 4 kbytes of on-chip RAM, the H8/3048F 16/32-bit embedded controller boasts 128 kbytes of flash memory. It is designed for applications requiring reprogrammable or uncommitted code storage and programs running adaptive-control algorithms. With a 32-bit CPU and a 16-Mbyte address space, the H8/3048F executes 1.5 MIPS when operating at 16 MHz and 5V or 0.75 MIPS at 8 MHz and 3V. The 16-MHz/5V version is housed in a 100-pin PQFP and costs $52.80 (10,000). Hitachi America Ltd Semiconductor and IC Division, Brisbane, CA. (800) 285-1601, ext 21.