Renesas Releases 11 Models in 3 Groups to Extend R8C/Tiny Series
November 8, 2007 // Published as a news service by IHS
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Renesas Technology Corp. announced its lineup of R8C/Tiny Series of low-pin-count 16 b microcontrollers (MCUs) with on-chip flash memory.
The 11 new models provide 1.8 volts (V) low-voltage operation and enhanced flash memory functions.
They can be used in electric home appliances and electronics, industrial equipment, battery drive devices, security systems, imaging systems and office equipment.
The new R8C/Tiny Series models comprise three groups: the 52 pin package version R8C/35A group, the 32 pin package version R8C/33A group and the 20 pin package version R8C/32A group.
Sample shipments will begin in December 2007 sequentially in Japan.
All MCUs in the R8C/Tiny Series offer on-chip flash memory. The new additions extend the R8C/Tiny Series to a total of 124 models with functions tailored to meet a variety of needs.
The features of the R8C/Tiny Series include the following:
- The new MCUs lower the operating voltage lower limit to 1.8 V from the 2.2 V of earlier R8C/Tiny Series models. The operating voltage range has been expanded to 1.8 V to 5.5 V, providing support for applications such as battery drive devices.
- Earlier MCUs in the R8C/Tiny Series incorporated a high-speed on-chip oscillator featuring oscillation precision of ±2%, and the new models increase this to ±1%.
This allows the on-chip oscillator to be used for communication applications that require a high degree of oscillation precision, eliminating the need for an external resonator and reducing overall system cost, according to Renesas.
- Data flash is a type of on-chip flash memory available exclusively from Renesas Technology intended specifically for data storage. The data flash featured in the three new groups has a background operation function.
This function allows the CPU to execute instructions while data is being written to or erased from the data flash. This makes program development easier because no special consideration needs to be given to the timing of data flash write and erase operations, according to Renesas.
In addition, even more data can be stored because the data flash capacity has been increased to a total of 4 KB (four blocks of 1 KB each), twice that of earlier R8C/Tiny Series MCUs.
The new MCUs can be shipped either with the flash memory blank or preprogrammed.
Source: Renesas Technology Corp.