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Fujitsu Introduces First Flash Device Of MB91460 Series
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MB91F467D is 0.18µm successor to the MB91F362G dashboard MCU, offering higher speed, more memory and additional features.
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Friday, January 19, 2007:
Fujitsu Microelectronics Asia Pte Ltd (FMAL) has introduced the first flash device of its new MB91460 series, specifically designed for next-generation automotive applications. MB91F467D is a 0.18µm successor to the MB91F362G dashboard microcontroller (MCU), offering higher speed, more memory and additional features.
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MB91F467D includes 1088kB of Fujitsu's embedded flash technology that features protected read-out. On-chip pre-fetch and flexible cache ensure best possible performance from this memory, which is connected to both the I-bus and F-bus.
MB91F467D offers 64kB of embedded RAM and the external bus interface (32-bit data, 26-bit addresses) can be used to connect external memory, for example, SDRAM, burst-mode flash or Fujitsu Graphic Display Controller (GDC) for cluster graphics control application. Each of the three CAN interfaces has its own set of 32 message buffers; four of the five LIN-UARTs are equipped with 16 Byte Rx and Tx FIFOs to speed up communication. Three I2C modules complete the set of serial communication interfaces.
Compared to MB91F362G, the variety of timers has also been enhanced. MB91F467D implements eight free-running timers as a time-base for eight ICU and four OCU modules, eight reload timers, three up/down counters and an RTC (Real-Time Clock) module, which can operate on the 4MHz main crystal, or on the 32kHz sub clock.
In addition to the six channels of stepping motor controller interfaces to control dashboard instruments, the set of pulse-generating modules contains 12 channels of 16-bit PPG, a sound generator and a PFM module. The on-chip PLL will create an internal operating frequency of up to 96MHz; again Fujitsu's clock modulator is implemented to improve EMC behaviour.
MB91F467DA version also features the following analogue functions: 24 channels of a 10-bit ADC and one alarm comparator input. Other improvements are a choice of I/O drive strengths, 2mA, 5mA or SMC drivers of 30mA. Various input levels are also included, such as automotive, CMOS hysteresis and TTL. All inputs come with internal pull-up resistors, which allow unused pins to be left open. MB91F467DA comes in a 208-pin lead-free (pure Sn pin plating) QFP package.
The microcontrollers function over the operating temperature range of -40 to +105°C and operate from a supply voltage range of 3V to 5.5V. MB91F467D will be supported by the Accemic MDE (monitor debug environment). Two starter kits are also available, one of which includes MB91F467D and Fujitsu's FlexRay Communication Controller IC MB88121.
MB91F467D is the second device in the MB91460 series now available for sampling and follows the MB91461, a ROMless device for infotainment. FMAL will continue to release additional variations of MB91460 MCUs with different peripherals, which will offer designers devices for a wide range of applications.
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