Irvine, CA--April 28, 1997--Toshiba America Electronic Components Inc. (TAEC; Irvine, CA) introduced its TLCS-900/L low-power 16-bit microcontrollers (MCUs). These new devices are equipped with a Multiply Add Calculator (MAC) and Duty Cycle Controller (DCC). The new low-power 16-bit MCUs, designated TMP93CM84F and TMP93PM84F, are targeted toward math-intensive applications including industrial and instrumentation control, medical instrumentation, and automotive (such as air bags and security), as well as telecommunication applications for pagers, cellular phones, and central office equipment.
The embedded controller contains an on-board MAC function that performs similarly to that of DSPs currently available in today's market. Applications typically requiring a MAC function include hard disk drives, AC servo controls, and air bag control modules.
This is Toshiba's first proprietary 16-bit MCU with Duty Cycle Controller. The DCC maintains a 50 percent duty cycle internal clock, and allows the MCU to use both edges of the clock through instructions and data. The end result is that the external clock frequency can be cut in half with no reduction in performance and allows the use of a lower 10-MHz crystal with less noise than using a 20-MHz crystal. By using a DCC, rather than phase lock loop (PLL), it generates cleaner internal signals and less noise without sacrificing performance.
The new devices also feature an on-board 10-bit A/D converter with an external trigger start. The 10-bit A/D converter allows the microcontroller to access analog inputs externally (i.e. temperature and voltage) and converts those inputs into digital data, thereby increasing the accuracy of the microcontroller over the industry average 8-bit resolution.
Also featured are three channels of on-board universal asynchronous receiver and transmitter (UART)--traditionally only two channels of UART have been offered on Toshiba MCUs--which contain a 9-bit transmit/receive data buffer and a transfer clock with or without parity. With three channels of UART/SIO, the MCU is more flexible in addressing telecommunication-type applications where a large number of UARTs are required. This feature allows customers to send out data at the standard baud rate without any concern about synchronizing with the standard serial output. The UART also improves the microcontroller's performance, because the software overhead associated with external UART software can be eliminated.
The new devices are offered in an 80-pin low quad flat pack (LQFP) with a thickness of 1.4 mm, making them ideal for designs where space is at a premium, such as in PCMCIA cards.
Samples of the TMP93CM84F will be available in the fourth quarter, 1997 with full production in the first quarter of 1998. Pricing in 10,000-piece lots is $7. Samples for the TMP93PM84F (OTP) will be available in the third quarter of 1997 with full production in the fourth quarter of 1997. Pricing in 10,000-piece lots is $15.
Toshiba America Electronic Components
9775 Toledo Way
Irvine, CA 92618
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