Part Number: 78F0547, UPD78F0547
Function: 8-Bit Single-Chip Microcontroller
Package: LQFP 80 Pin Type
78F0547 is 8-Bit Single-Chip Microcontroller. An 8-bit single-chip microcontroller (MCU) is a type of microcontroller that has an 8-bit central processing unit (CPU) architecture integrated into a single chip. It is a compact and cost-effective device commonly used in a wide range of embedded systems and electronic applications.
The microcontroller’s CPU is based on an 8-bit architecture, which means it can process data in 8-bit chunks at a time. While 8-bit MCUs may have certain limitations compared to higher-bit MCUs (such as reduced memory addressing range and arithmetic precision), they are well-suited for many simple to moderate complexity applications.
An 8-bit single-chip microcontroller often includes various on-chip peripherals such as timers, serial communication interfaces (UART, SPI, I2C), analog-to-digital converters (ADC), and digital I/O pins. These peripherals provide the MCU with the ability to interact with the external world and perform a variety of tasks.
Take care to prevent chattering noise from entering the device when the input level is fixed, and also in the transition period when the input level passes through the area between VIL (MAX) and VIH (MIN). 2 HANDLING OF UNUSED INPUT PINS Unconnected CMOS device inputs can be cause of malfunction. If an input pin is unconnected, it is possible that an internal input level may be generated due to noise, etc., causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input levels of CMOS devices must be fixed high or low by using pull-up or pull-down circuitry. Each unused pin should be connected to VDD or GND via a resistor if there is a possibility that it will be an output pin. All handling related to unused pins must be judged separately for each device and according to related specifications governing the device.
3 PRECAUTION AGAINST ESD A strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and ultimately degrade the device operation. Steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it when it has occurred. Environmental control must be adequate. When it is dry, a humidifier should be used. It is recommended to avoid using insulators that easily build up static electricity. Semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. All test and measurement tools including work benches and floors should be grounded. The operator should be grounded using a wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions need to be taken for PW boards with mounted semiconductor devices. [ … ]
• Automotive equipment ((A), (A1), (A2) grade products, under development)
• System control for body electricals (power windows, keyless entry reception, etc.)
• Sub-microcontrollers for control
1. Car audio
2. AV equipment, home audio
3. PC peripheral equipment (keyboards, etc.)
4. Household electrical appliances
• Air conditioners
• Microwave ovens, electric rice cookers
1. Industrial equipment
• Vending machines
• FA (Factory Automation)