Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Renesas Technology Europe | Subject: R8C/Tiny series
Edited by the Electronicstalk Editorial
Team on 15 November 2005
Compact MCUs expand into automotive
applications
Renesas Technology Europe has added 36 new models to its R8C/Tiny series of small low-pin-count high-performance 16bit microcontrollers with on-chip Flash memory.
Renesas Technology Europe has added 36 new models to its R8C/Tiny series of small low-pin-count high-performance 16bit microcontrollers with on-chip Flash memory The new lineup includes devices that feature a reduced minimum operating voltage and wide temperature range in addition to a LIN interface
This article was originally published on Electronicstalk on 23 Jun 2008 at 8.00am (UK)
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The R8C/Tiny microcontroller series now includes application-specific standard products for low-end motor control, lighting and small appliances.
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The addition of these models will enable the series to meet specific requirements in an even wider variety of applications, such as battery-powered products, in addition to consumer, security, imaging and industrial devices, automotive equipment and OA products.
The R8C/Tiny series currently has a total of 148 devices in volume production, all with on-chip Flash memory.
The new models are classified into four groups: the 32-pin package version R8C/26 and R8C/27 groups, and the 20-pin package version R8C/28 and R8C/29 groups.
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The four groups feature the same high performance 16bit R8C CPU core and 20MHz maximum operating frequency as in existing series models.
This enables most previously developed R8C/Tiny series software to be used, helping to shorten product development times.
The new lineup includes models that feature a reduced minimum operating voltage of 2.2V from the 2.7V of previous R8C/Tiny series products, in addition to an extended operating voltage range of 2.2 to 5.5V.
This allows use in applications that require low power consumption and a low operating voltage.
The lineup also provides a LIN automotive network compatible interface, despite the low pin count, and wide temperature range (-40 to +125C) models to meet the requirements of automotive applications.
The majority of processing is performed by hardware using an 8bit timer channel and a synchronous/UART serial interface channel.
This simplifies the development of LIN-compatible products and enables the CPU's software processing load to be reduced.
In addition, a watchdog timer, EEPROM and submicrocontroller that have previously been three separate components can now be implemented with a single R8C/Tiny series chip, making these products ideal for use as automotive body control and high-performance system submicrocontrollers, for example.
All models include on-chip Flash memory offering single-supply high-speed programming, high reliability and onboard programming capability.
Flash memory for program storage is available in four capacities of 32, 24, 16 and 8Kbyte for the R8C/26 and R8C/27 groups and two capacities of 16 and 8Kbyte for the R8C/28 and R8C/ 29 groups.
The R8C/27 and R8C/29 groups also include 2Kbyte (as two 1Kbyte blocks) of data Flash, Renesas Technology's proprietary Flash memory used mainly for data storage.
The advanced 16bit timer features a higher maximum operating speed than in previous R8C/Tiny series products.
A high precision on-chip oscillator allows generation of a 40MHz clock that enables high-speed 16bit timer operation.
This results in a doubling of timer counter resolution compared with current maximum 20MHz timer operation, enabling product control precision to be improved and higher product performance to be achieved.
As with current models, a comprehensive range of on-chip peripheral functions is provided, including a high-precision on-chip oscillator and a voltage detection circuit.
The provision of these new peripheral functions and improvements to existing functions, together with the extension of the series lineup, allows the user to select the ideal model for the product being developed based on such factors as cost and functionality.
The E8 Emulator on-chip debugger allowing single-pin interfacing is available as a development environment.
The single-pin connection capability enables all I/O pins to be used during debugging, allowing more efficient program development.
An additional feature of this debugger is that it can be used as a Flash memory writer as well as an emulator.
The packages used are a 32-pin LQFP (7 x 7mm) and a 20-pin LSSOP (6.5 x 4.4mm).
Shipping forms include factory-programmed Flash memory product shipment as well as blank Flash memory product shipment.
Sample shipments will begin from December 2005 sequentially.
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