MB91F467SAPMC-C0040

Program Memory Size:	1.0625MB (1.0625M x 8)
Supplier Device Package:	176-LQFP (24x24)
Package / Case:	176-LQFP
Operating Temperature:	-40°C ~ 105°C (TA)
Oscillator Type:	External
Data Converters:	A/D 16x10b
Voltage - Supply (Vcc/Vdd):	3 V ~ 5.5 V
RAM Size:	72K x 8
EEPROM Size:	--
Program Memory Type:	FLASH
Series:	FR MB91460S
Number of I/O:	133
Peripherals:	DMA, LVD, PWM, WDT
Connectivity:	CANbus, EBI/EMI, I²C, LINbus, UART/USART
Speed:	100MHz
Core Size:	32-Bit
Core Processor:	FR60 RISC
Part Status:	Active
Packaging:	Tray

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Introduction to MB91F467SAPMC-C0040

The MB91F467SAPMC-C0040 is a 40-pin SIP/DIP microcontroller, suitable for embedded applications. It’s part of the Renesas RL78 family of 8-bit microcontrollers, and has 16kB of Flash memory. This makes it ideal for applications with limited program memory requirements, such as control systems, data acquisition systems and small embedded devices requiring logic and analog I/O functions.

Application Field

The MB91F467SAPMC-C0040 is most commonly used for applications such as controller designs, data acquisition systems, building automation, point-of-sale systems, factory automation, security systems, industrial control networks, and embedded display applications. It’s also an ideal choice for low-power data transmission, low-cost networking, embedded motor control, digital sensors, metering, and motor and motion control systems. Additionally, it’s compatible with the Renesas R78 and RL78 microcontroller families, and allows Renesas developers to reduce development time with Renesas’ development tools and libraries.

Hardware Overview

The MB91F467SAPMC-C0040 has a 32-bit RISC core, 16kB of on-chip flash memory, 2kB of SRAM, and a flexible I/O system. The microcontroller is fabricated using a 0.18μm CMOS process and operates from a 1.8V to 5.5V power supply. It offers a wide range of features, including an analog-to-digital converter, watchdog timer, UART, SPI/I2C, digital-to-analog converter, memory and interrupt controllers, and more.

Peripheral Functions

The MB91F467SAPMC-C0040 offers several peripheral functions. It has four 8-bit timer channels and two 16-bit timer channels with programmable interrupt. It also has three I2C/SPI serial bus interfaces, two full-duplex UARTs, and two multi-function I/O ports. It also provides two 8-bit pulse-width modulation (PWM) channels for controlling motor speed and direction, sixteen 8-bit general-purpose I/O ports, and one 8-bit analog-to-digital converter (ADC) used to read analog signals from outside sources.

Working Principle

The MB91F467SAPMC-C0040 uses a harvard architecture to process instructions. This involves a program counter, which stores the address of the currently executing instruction, and a separate (and faster) instruction memory space for storing program code. Because the program counter and instruction memory are separate, the microcontroller can fetch and execute instructions more quickly. The MB91F467SAPMC-C0040 also uses a RISC (Reduced Instruction Set Computer) architecture which reduces the number of instructions, and therefore the amount of code, required to perform a certain task. The RISC architecture simplifies coding by using instructions that perform basic actions — such as loading and storing values — instead of single instructions that perform complex actions. This helps to reduce code size, which in turn reduces memory requirements and overall cost.

Software Development

For software development, the MB91F467SAPMC-C0040 uses the E2 (SuperH) Development environment from Renesas. This includes the compilers, assemblers, debuggers, and simulation tools necessary for developing embedded systems for the MB91F467SAPMC-C0040. Additionally, the MB91F467SAPMC-C0040 supports the E1 (SuperH) development environment, which offers an extended range of debuggers, programming tools, and development kits. It also supports flash programming via RS-232, and supports the application-level programming languages C/C++, Java, JavaScript, Visual Basic, HTML, and Python.

Conclusion

The MB91F467SAPMC-C0040 is an ideal microcontroller for embedded applications that require low power, low cost, and limited program memory. Its on-chip flash memory, peripheral functions, and development tools make it an excellent choice for control systems, data acquisition systems, and embedded motor control designs. It’s also compatible with Renesas’ development tools and libraries, making it easier to get up and running quickly.

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