AT89C51ED2-RDTUM Microcontrollers

Technical Specifications of AT89C51ED2-RDTUM

Datasheet	AT89C51ED2-RDTUM datasheet
Category	Integrated Circuits (ICs)
Family	Embedded – Microcontrollers
Manufacturer	Atmel
Series	89C
Packaging	Tray
Part Status	Active
Core Processor	80C51
Core Size	8-Bit
Speed	60MHz
Connectivity	SPI, UART/USART
Peripherals	POR, PWM, WDT
Number of I/O	50
Program Memory Size	64KB (64K x 8)
Program Memory Type	FLASH
EEPROM Size	2K x 8
RAM Size	2K x 8
Voltage – Supply (Vcc/Vdd)	2.7 V ~ 5.5 V
Data Converters	–
Oscillator Type	External
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-LQFP
Supplier Device Package	64-VQFP (10×10)

One such high-performance CMOS Flash 8-bit microcontroller is the AT89C51ED2-RDTUM.

It is based on the 80C51. Code and data are stored in a 64-KiByte Flash memory block. Software or an ISP can be used to rewrite the contents of the 64-Kbyte Flash memory in either parallel or serial mode. The standard VCC pin is used to create the programming voltage inside. Internal RAM of 256 bytes, a 9-source 4-level interrupt controller, and three timer/counters are carried over from the Microchip 80C52 to the AT89C51RD2/ED2.

The AT89C51ED2 has 2048 bytes of EEPROM for storing information that can be accessed even if the power is cut.

In addition, the AT89C51ED2-RDTUM  comes with a Keyboard, SPI interface, Programmable Counter Array, 1792 bytes of XRAM, a Hardware Watchdog Timer, and a more flexible serial channel that supports multiprocessor communication (EUART), as well as a speed increase mechanism (X2 Mode). Bringing the clock frequency down to any value, including DC, without data loss is possible thanks to the static design of the AT89C51ED2-RDTUM.

The AT89C51ED2-RDTUM contains an 8-bit clockprescaler and two power-saving modes that may be selected in software to significantly lower power consumption. While the central processing unit is idle, the peripherals and interrupt system continue functioning normally. The power-down mode saves RAM and disables all other features. The AT89C51RD2/ED2 is a more robust option for applications like alarms, corded phones, motor control, and smart card readers that require pulse width modulation, high-speed I/O, and counting capabilities.

AT89C51ED2-RDTUM Key Features

It is 80C52 Compatible

• Instruction Compatible with 8051
• Six I/O Ports for 8-bit (64 Pins or 68 Pins Versions)
• Four I/O ports for 8 bits (44 Pins Version)
• 3×16-bit Timer/Counters
• RAM Scratch Pad, 256 Bytes

9 Interrupt Sources with 4 Priority Levels

• Internal Power Supply is Under the Control of an Integrated Power Monitor (POR/PFD).
• Using a regular VCC power supply for ISP (In-System Programming).
• Low-Level Flash Programming Routines and a Default Serial Loader are contained in the 2048 bytes boot ROM.
• Rapid architecture.

In Standard Mode

• 40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)
• 60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)

In X2 mode (6 Clocks/machine cycle)

• 20 MHz (Vcc 2.7V to 5.5V, both external Internal and code execution)
• 30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)

64K Bytes On-chip Flash Program or Data Memory

• (128 bytes) Byte Erase and Write.
• 100k Write Cycles

Expanded RAM of 1792 bytes on-chip (XRAM)

• the software allows for size selection (0, 256, 512, 768, 1024, 1792 Bytes)
• At Reset, 768 Bytes Are Selected for T89C51RD2 Compatibility

On-chip 2048 Bytes EEPROM Block for Data Storage (AT89C51ED2 Only)

• Has 100K Write Cycles.
• Equipped with a dual data pointer.
• For slow peripherals/RAM, it has a Variable Length MOVX.
• With Independent CPU and Peripheral Selection, it has Improved X2 Mode.
• Port 1 includes a Keyboard Interrupt Interface.
• This device has SPI Interface (Master/Slave Mode).
• 8-bit Clock Prescaler is one of its characteristics.

Asynchronous Port Reset

• Full-duplex is a more improved UART with low EMI and internal baud rate generator (Inhibit ALE).
• Hardware Watchdog Timer, Power-off Flag, One-Time Enabled with Reset-Out.
• Idle mode and power-down mode are two power control modes.
• Lone ranges from 2.7 to 5.5 volts of power supply.
• Industry Temperature Range (-40 to +85°C).
• Packages: VQFP44, PLCC44, PLCC68, and VQFP64.

AT89C51ED2-RDTUM Specifications

Frequently Asked Questions

What are CMOS and its uses?

Integrated circuits (ICs), often known as chips or microchips, are typically constructed using a semiconductor technology known as complementary metal-oxide semiconductors (CMOS). MOSFET technology is the foundation upon which CMOS transistors are built. MOSFET stands for a metal-oxide-semiconductor field-effect transistor.

What is CMOS flash memory?

On a computer’s motherboard is a small amount of memory known as complementary metal-oxide-semiconductor (CMOS). This memory stores the Basic Input/Output System (BIOS) settings. The software saved on the memory chip located on the motherboard is called the BIOS.

What does means 8-bit microcontroller mean?

The word “8-bit” most commonly refers to the bit-width of the CPU; hence, a microcontroller that is 8 bits wide will have a CPU that is 8 bits wide. This indicates that all of the internal operations are performed on 8-bit values, that the stored variables are in 8-bit blocks, and that the busses used to access the external inputs and outputs are also 8 bits.

Why is it called 8-bit?

This refers to the maximum data unit size a computer can process, often known as its “word size.” Because a 1-bit may take on either the value 1 or 0, it can store information in any of those states.

Conclusion

Thanks for reading. If you thought this post was interesting, feel free to look around the rest of our website for other content similar to what you just read. If you have any questions about the content of this article or any other article that can be found on our website, please feel free to leave them in the comment box below, and we will try our best to respond to them.

Contact us at ICRFQ, your leading electronic distributor of electronic components in china, if you want more information or wish to purchase the AT89C51ED2-RDTUM. We will ensure that you receive the best product at the best price possible.

The Latest And Most Popular Parts That You May Also Like