News Release

News Release: May.28, 2009

New ultra-low voltage operation and
power consumption 8-bit Flash Microcontroller
Low pin count microcontroller with high performance and functionality 

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Product Name LC87FA308A
Code Name Easy Micon™
Sample Shipping Sep. 2009
Production Plan 500K / month
Sample Price $3.00

  SANYO Semiconductor Co., Ltd. has developed a new process exclusively used for flash microcontrollers in order to produce low voltage operation and low power consumption products. Utilizing this new process, SANYO Semiconductor announces the development of a 8-bit flash microcontroller, LC87FA308A, featuring the industry's lowest voltage operation and ultra-low power consumption*1.

  This 24-pin 8-bit flash microcontroller enables low voltage operation of 1.6V and realizes ultra-low power consumption of 0.4µA at real time clock operation. This microcontroller offers customers easy and effective software design environment by adopting a one-wire communication interface for the on-chip-debugger that is capable of real-time processing. This general-purpose microcontroller is ideal for all different kinds of electronic devices that require low voltage operation and low power consumption. Application examples for this product include smoke detectors, alarm sensors, emergency lights and battery-driven product.

"Easy Micon" is a trademark of SANYO Semiconductor Co., Ltd.

Product Main Features

  1. Industry's lowest operation voltage*1 achieved (1.6V to 5.5V)
      Wide range of operation (1.6V to 5.5V) is realized by adopting a new process and optimizing analog circuits. All functions of the LC87FA308A microcontroller can be operated at 1.8V even with a built-in low voltage detection circuit. Writing to flash memory, 12-bit AD converter and 8MHz variable RC oscillation are operational at low voltage (1.8V to 5.5V).

    Operation Voltage Condition

      New Product
    (LC87FA308A)    		 Existing Product
    (LC87F2G08A)
    Reference voltage 1.6V to 5.5V 1.8V to 5.5V
    Flash memory write 1.8V to 5.5V 2.2V to 5.5V
    12-bit AD converter 2.4V to 5.5V
    8MHzvariable RC
    oscillation    		 2.7V to 5.5V
  2. Industry's lowest current*1consumption achieved (0.4µA at RTC*2 operation)
      The current consumption at real time clock operation of the LC87FA308A microcontroller (0.4µA) is reduced by 93% compared to our existing 8-bit microcontrollers (5.5µA). Low current consumption of 5.3µA is realized even at normal operations of 3V.

    Comparison of Current Consumption at 32KHz Operation

      New Product
    (LC87FA308A)    		 Existing Product
    (LC87F2G08A)
    Real time clock operation(3V) 0.4 [µA] -93% 5.5 [µA]
    Real time clock operation (5V) 0.7 [µA] -97% 22 [µA]
    Normal operation (3V) 5.3 [µA] -58% 12.5 [µA]
    Normal operation (5V) 8.5 [µA] -78% 38 [µA]
  3. One-wire communication for on-chip-debugging
      For existing products the on-chip-debugging required four terminals (except power terminal), now with the LC87FA308A microcontroller debugging is possible with one-wire communication. Additionally, this microcontroller has two debugger terminals and the user is able to select the terminal for debugging depending on preference. This allows to make the best use of terminals in low pin count microcontrollers. Easy and effective development of software is possible with real-time display of all memory contents in the program execution status.
  4. Other product feature
      The LC87FA308A microcontroller is available in the small VCT24 (3mm×3mm) package that is ideal for battery driven products and portable devices.

    5. *1  As of May 28, 2009

    *2  Real Time Clock

Specifications

  1. Flash ROM: 8KB
  2. RAM: 256B
  3. A/D Converter: 12/8bit selectable × 8 channel
  4. Built-in low-voltage detection circuit: POR/LVD
  5. Built-in RC oscillator circuit: 3ch(low-speed/medium-speed/high-speed)
  6. Package: 24-pin VCT24(3.0mm×3.0mm), SSOP24(6.5mm×6.4mm), MFP24S(12.5mm×7.6mm)

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*The information presented in this press release, including device specifications, is current as of the date of this press release.
Note, however, that this information is subject to change without notice and thus at later dates the current state may differ in certain details from the content presented here.

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