HD6303RP
8-Bit MicrocontrollerHD6303RP
8-Bit Microcontroller
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Manufacturer Part # : HD6303RP
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Package/Case: DIP-40
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Brand: Hitachi Metals
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Product Categories : Microcontrollers
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HD6303RP DataSheet

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Interested Parts
HD6303RP Description
The HD6303RP is an 8-bit microcontroller from Hitachi, designed for reliable and efficient performance in various applications. This device is ideal for embedded system development, featuring powerful processing capabilities and versatile I/O options.
Pin Details
The HD6303RP is a low-power 8-bit microcontroller with 40 pins for parallel data transfer and communication. It includes pins for receiving, driving, and enabling signals, along with power supply and ground connections.
Pin configuration:
- Pins 1-39: I/O ports A-H for general-purpose digital input/output
- Pins 40: Reset input and ground connection
Features
- Persistent Clock: Maintains internal clock even when power is turned off.
- Data RAM/ROM Protection: Offers write protection for both data RAM and ROM to prevent accidental changes to program code or data.
- Low Power Consumption: Optimized for low power usage, ideal for battery-powered devices.
- Real-Time Clock (RTC) Functionality: Provides time-keeping and alarm functions for application-specific timing needs.
Applications
The HD6303RP is commonly used in systems that require low power consumption, robust data processing, and efficient communication. It is well-suited for applications where persistent clock, data RAM/ROM protection, and real-time clock functions are essential.
Where to Use:
- Embedded systems
Manufacturer
The HD6303RP is manufactured by Hitachi, a global leader in semiconductor technology. It falls under the category of 8-bit microcontrollers, which are designed for reliable and efficient performance in various applications.
This product was developed to meet the growing demand for low-power microcontrollers in embedded systems, where features like persistent clock, data RAM/ROM protection, and real-time clock functionality are essential for accurate timing and data protection.
Packages
The HD6303RP comes in a 40-pin QFP (Quad Flat Pack) package. This package is designed for surface-mount technology, offering a compact and efficient solution for integrating the microcontroller into electronic circuits.
Equivalent Parts of HD6303RP
- Zilog Z80: A comparable 8-bit microprocessor with similar features and performance.
FAQ
Q: Can the HD6303RP be used in high-performance computing applications?
A: Yes, it is designed to handle demanding tasks requiring fast processing speeds and low power consumption.
Q: Does the HD6303RP have real-time clock functionality?
A: Yes, it features a real-time clock (RTC) with alarm functions for application-specific timing needs.
Q: Can I use the HD6303RP in embedded systems requiring data RAM/ROM protection?
A: Yes, it provides write protection for both data RAM and ROM to prevent accidental changes to program code or data.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Rohs Code | No | Part Life Cycle Code | Obsolete |
Part Package Code | DIP | Pin Count ! | 40 |
HTS Code ! | 8542.31.00.01 | Has ADC | NO |
Address Bus Width ! | 16 | Bit Size | 8 |
CPU Family | 6800 | Clock Frequency-Max | 1 MHz |
DAC Channels | NO | DMA Channels | NO |
External Data Bus Width | 8 | JESD-30 Code | R-PDIP-T40 |
JESD-609 Code | e0 | Length | 52.8 mm |
Number of I/O Lines | 13 | Number of Terminals | 40 |
Operating Temperature-Max | 70 °C | PWM Channels | NO |
Package Body Material | PLASTIC/EPOXY | Package Code | DIP |
Package Equivalence Code | DIP40,.6 | Package Shape | RECTANGULAR |
Package Style | IN-LINE | Power Supplies ! | 5 V |
Qualification Status ! | Not Qualified | RAM (bytes) | 128 |
Seated Height-Max | 5.08 mm | Speed | 1 MHz |
Supply Current-Max | 10 mA | Supply Voltage-Max | 5.5 V |
Supply Voltage-Min | 4.5 V | Supply Voltage-Nom | 5 V |
Surface Mount ! | NO | Technology | CMOS |
Temperature Grade ! | COMMERCIAL | Terminal Finish | TIN LEAD |
Terminal Form ! | THROUGH-HOLE | Terminal Pitch ! | 2.54 mm |
Terminal Position | DUAL | Width | 15.24 mm |
uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is HD6303RP?
The HD6303RP is a microprocessor unit (MPU) manufactured by Hitachi. It is part of the HD6300 series of 8-bit microcontrollers known for their versatility and reliability. The HD6303RP features a combination of on-chip peripherals and a powerful CPU core, making it suitable for a wide range of embedded applications.
How Does HD6303RP Work?
The HD6303RP functions as a microprocessor unit with an 8-bit CPU core. It executes instructions and processes data based on the program stored in its memory. The on-chip peripherals such as timers, I/O ports, and serial interfaces enhance its capabilities for various embedded system tasks.
How Many Pins does HD6303RP have and What are the Functions of the Pinout Configuration?
The HD6303RP is typically available in 40-pin DIP (Dual Inline Package) or similar packages. The pinout configuration includes:
- VCC: Power supply pin.
- GND: Ground pin.
- CLK: Clock input pin.
- RESET: Reset input pin.
- IRQ, NMI: Interrupt pins.
- ADDR/Data Bus: Address and data bus pins for communication.
- Ports A, B, C: General-purpose I/O ports.
- Timer Inputs: Pins for timer inputs or external clock connections.
What are the Pros and Cons of HD6303RP?
Pros:
- Versatile: Suitable for a wide range of embedded applications.
- On-Chip Peripherals: Includes various on-chip peripherals for enhanced functionality.
- Reliability: Known for its reliability and stability in operation.
- Cost-Effective: Provides a cost-effective solution for embedded system design.
- Compatibility: Offers compatibility with existing HD6300 series devices and tools.
Cons:
- Limited Processing Power: Being an 8-bit microcontroller, it may have limitations in complex computational tasks.
- Memory Constraints: Limited on-chip memory may restrict storage capacity for large programs.
- Obsolete: As newer microcontrollers with advanced features are available, the HD6303RP may be considered outdated for some applications.
Are There Any Equivalents/Alternatives to HD6303RP for Recommendation?
- An equivalent part to the HD6303RP is the MC68HC11 from NXP Semiconductors.
- Alternative microcontrollers to the HD6303RP include the PIC16F series from Microchip Technology and the 8051-based microcontrollers from various manufacturers.
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Price details
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