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MCU integrates flash memory

Posted: 10 Apr 2006 ?? ?Print Version ?Bookmark and Share

Keywords:TMP91FY42FG? microcontroller? MCU? Toshiba? flash?

Toshiba America Electronic Components Inc. announced the expansion of its embedded flash microcontroller (MCU) product line with the addition of a new 16bit MCU and six new 8bit MCUs based on SuperFlash technology. The TMP91FY42FG integrates 256Kbytes of flash memory and was designed for medium- to high-end applications, including industrial control, security systems and handheld products.

The 16bit TMP91FY42FG combines 256Kbytes of flash memory with an integrated 10bit eight-channel ADC, an eight-channel, 8bit timer; a two-channel, 16bit timer; and a watchdog timer. I/O functions include a two-channel SIO/UART, an I2C interface, support for IrDA version 1.0 at 115.2Kbps, and 81 I/O ports. Additional on-board memory includes 16Kbytes of internal RAM and 4Kbytes of mask ROM for booting; external memory expansion to 16Mbytes is fully supported. The MCU is based on Toshiba's TLCS-900/L1 processor core and operates with voltages between 2.7V and 3.6V. The minimum instruction execution time is 148ns at 27MHz. Overall power consumption is said to be reduced by the three standby modes, including a programmable idle option. The device is fully compatible with other Toshiba devices based on the TLCS-900/L and TLCS- 900/H cores. Packaging is a compact 100-pin LQFP package with dimensions of 14-by-14mm.

The new 8bit MCUs consist of six devices with flash memory configurations ranging from 16Kbytes to 60Kbytes and various RAM, peripheral and packaging options. Two of the devices incorporate an LCD controller for displays; this integration reduces external component count and increases reliability. The devices incorporate the Toshiba TLCS-870/C 8-bit CPU core.

Toshiba claims that its SuperFlash implementation can be programmed much faster than many alternative flash technologies. The availability of three programming modesparallel, serial PROM and in-system programming (ISP)is said to provide pre- and post-production programming flexibility. ISP mode allows upgrades and fixes in the field under control of the user program. This, Toshiba said, removes the need to switch off the output to an LCD panel or active output controls.

Samples of all of these devices are currently available and they are in volume production. The 16bit TMP91FY42FG is priced at $6.45 in 10,000-piece quantities. Pricing for the 8bit devices varies, depending on the device specifications.

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