Electronic Design

DSP Controller Squeezes Into Tight Quarters

Packing a 40-MIPS 16-bit DSP core, 8 kwords of flash memory, and a suite of control-optimized peripherals on a single tiny die, Texas Instruments has released a highly integrated DSP controller in a miniature 32-pin low-profile quad flat pack (LQFP). Besides expediting the development of the product, the flash allows field reprogrammability.

The TMS320LF2401A fits in space-constrained control applications. Key peripherals include an ultra-fast 10-bit, five-channel ADC, an event manager, a serial communications interface (SCI), a watchdog timer, and 13 GPIO channels. Along with flash memory configured as two 4-kword sectors, the DSP offers 1 kword of RAM and a 256-word boot ROM. The flash's 64-bit password ensures code security. Sampling is planned for early in the third quarter. In lots of 100,000 units, the LF2401A costs $5.95 each.

For similar applications, the LF2403A provides 16 kwords of flash with code security and 1 kword of RAM. Key peripherals include a 10-bit ADC with eight input channels, an event manager, a 2.0B-compliant CAN interface, SPI, and 21 GPIOs. Packaged in a 64-pin thin quad flat pack (TQFP), it costs $7.95 each in 100,000-unit quantities.

The TMS320LC2402A has 6 kwords of ROM in place of flash. It comes in a 64-pin TQFP and costs $2.95 each in 10,000-unit quantities.

TI is accepting ROM codes for the LC2402A. To expedite development, Spectrum Digital of Stafford, Texas, is offering the eZdsp integrated development kit. Its evaluation module is based on the code-compatible LF2407A

Texas Instruments Inc., 12500 TI Blvd., Dallas, TX 75243; M/S 8671; (972) 644-5580; www.dspvillage.ti.com.

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