AT89C51CC03UA-RLTUM Detailed explanation of pin function specifications and circuit principle instructions

The AT89C51CC03UA-RLTUM is part of the Atmel (now part of Microchip Technology) family of microcontrollers. Specifically, it's part of the 8051 microcontroller family but with enhanced features, including integrated flash memory, multiple I/O pins, and advanced peripherals such as timers, UART, and ADC.

Package Type:

The AT89C51CC03UA-RLTUM comes in a LQFP-100 (Low Profile Quad Flat Package), which is a surface-mount package with 100 pins.

Pinout and Functionality (Detailed):

This microcontroller has 100 pins in total. Below is the detailed description of the pinout and their corresponding functions.

Pin Function Table for AT89C51CC03UA-RLTUM (100 Pins): Pin Number Pin Name Function Description 1 VSS Ground (0V) 2 VDD Power Supply (+5V) 3 P1.0 Port 1, Bit 0 (I/O) 4 P1.1 Port 1, Bit 1 (I/O) 5 P1.2 Port 1, Bit 2 (I/O) 6 P1.3 Port 1, Bit 3 (I/O) 7 P1.4 Port 1, Bit 4 (I/O) 8 P1.5 Port 1, Bit 5 (I/O) 9 P1.6 Port 1, Bit 6 (I/O) 10 P1.7 Port 1, Bit 7 (I/O) 11 P3.0 Port 3, Bit 0 (I/O) 12 P3.1 Port 3, Bit 1 (I/O) 13 P3.2 Port 3, Bit 2 (I/O) 14 P3.3 Port 3, Bit 3 (I/O) 15 P3.4 Port 3, Bit 4 (I/O) 16 P3.5 Port 3, Bit 5 (I/O) 17 P3.6 Port 3, Bit 6 (I/O) 18 P3.7 Port 3, Bit 7 (I/O) 19 RST Reset Pin (Input) 20 ALE Address Latch Enable 21 PSEN Program Store Enable 22 EA External Access Enable 23 XTAL1 Crystal Oscillator Input (External) 24 XTAL2 Crystal Oscillator Output (External) 25 INT0 External Interrupt 0 (Input) 26 INT1 External Interrupt 1 (Input) 27 T0 Timer 0 (Input) 28 T1 Timer 1 (Input) 29 RXD UART Receive Data (Input) 30 TXD UART Transmit Data (Output) 31 P0.0 Port 0, Bit 0 (I/O) 32 P0.1 Port 0, Bit 1 (I/O) 33 P0.2 Port 0, Bit 2 (I/O) 34 P0.3 Port 0, Bit 3 (I/O) 35 P0.4 Port 0, Bit 4 (I/O) 36 P0.5 Port 0, Bit 5 (I/O) 37 P0.6 Port 0, Bit 6 (I/O) 38 P0.7 Port 0, Bit 7 (I/O) 39 P2.0 Port 2, Bit 0 (I/O) 40 P2.1 Port 2, Bit 1 (I/O) 41 P2.2 Port 2, Bit 2 (I/O) 42 P2.3 Port 2, Bit 3 (I/O) 43 P2.4 Port 2, Bit 4 (I/O) 44 P2.5 Port 2, Bit 5 (I/O) 45 P2.6 Port 2, Bit 6 (I/O) 46 P2.7 Port 2, Bit 7 (I/O) 47 T2 Timer 2 (Input) 48 T3 Timer 3 (Input) 49 I2C SDA I2C Data Line (Input/Output) 50 I2C SCL I2C Clock Line (Input) 51 NMI Non-Maskable Interrupt (Input) 52 VCAP capacitor for internal voltage regulator 53 VDDIO Power supply for I/O pins 54 VSSIO Ground for I/O pins 55 A/D0 Analog-to-Digital Input 0 56 A/D1 Analog-to-Digital Input 1 57 A/D2 Analog-to-Digital Input 2 58 A/D3 Analog-to-Digital Input 3 59 A/D4 Analog-to-Digital Input 4 60 A/D5 Analog-to-Digital Input 5 61 A/D6 Analog-to-Digital Input 6 62 A/D7 Analog-to-Digital Input 7 63 P4.0 Port 4, Bit 0 (I/O) 64 P4.1 Port 4, Bit 1 (I/O) 65 P4.2 Port 4, Bit 2 (I/O) 66 P4.3 Port 4, Bit 3 (I/O) 67 P4.4 Port 4, Bit 4 (I/O) 68 P4.5 Port 4, Bit 5 (I/O) 69 P4.6 Port 4, Bit 6 (I/O) 70 P4.7 Port 4, Bit 7 (I/O) 71 RSTIN Reset In (Input) 72 P5.0 Port 5, Bit 0 (I/O) 73 P5.1 Port 5, Bit 1 (I/O) 74 P5.2 Port 5, Bit 2 (I/O) 75 P5.3 Port 5, Bit 3 (I/O) 76 P5.4 Port 5, Bit 4 (I/O) 77 P5.5 Port 5, Bit 5 (I/O) 78 P5.6 Port 5, Bit 6 (I/O) 79 P5.7 Port 5, Bit 7 (I/O) 80 P6.0 Port 6, Bit 0 (I/O) 81 P6.1 Port 6, Bit 1 (I/O) 82 P6.2 Port 6, Bit 2 (I/O) 83 P6.3 Port 6, Bit 3 (I/O) 84 P6.4 Port 6, Bit 4 (I/O) 85 P6.5 Port 6, Bit 5 (I/O) 86 P6.6 Port 6, Bit 6 (I/O) 87 P6.7 Port 6, Bit 7 (I/O) 88 VDDIO2 Power supply for I/O pins 89 VSSIO2 Ground for I/O pins 90 P7.0 Port 7, Bit 0 (I/O) 91 P7.1 Port 7, Bit 1 (I/O) 92 P7.2 Port 7, Bit 2 (I/O) 93 P7.3 Port 7, Bit 3 (I/O) 94 P7.4 Port 7, Bit 4 (I/O) 95 P7.5 Port 7, Bit 5 (I/O) 96 P7.6 Port 7, Bit 6 (I/O) 97 P7.7 Port 7, Bit 7 (I/O) 98 NC No Connect 99 NC No Connect 100 NC No Connect

Frequently Asked Questions (FAQ):

What is the primary function of the AT89C51CC03UA-RLTUM microcontroller? It is an 8051-based microcontroller designed for embedded applications, offering enhanced I/O ports, serial communication, and timers. How many pins does the AT89C51CC03UA-RLTUM have? It has 100 pins. What kind of package does the AT89C51CC03UA-RLTUM come in? It is available in an LQFP-100 package. What is the operating voltage of the AT89C51CC03UA-RLTUM? The operating voltage is typically 5V. Does the AT89C51CC03UA-RLTUM have analog-to-digital functionality? Yes, it has a built-in ADC (Analog-to-Digital Converter) with 8 channels. What is the frequency range of the AT89C51CC03UA-RLTUM? The microcontroller can operate at a frequency up to 40 MHz. Does the AT89C51CC03UA-RLTUM support UART communication? Yes, it has UART functionality for serial communication. Can the AT89C51CC03UA-RLTUM interface with I2C devices? Yes, it supports I2C communication through its I2C pins. Is there a reset function on the AT89C51CC03UA-RLTUM? Yes, it has an external reset pin for initiating the reset operation.

How can I power the AT89C51CC03UA-RLTUM?

It is powered via the VDD pin, which typically connects to a 5V supply.

What kind of memory does the AT89C51CC03UA-RLTUM have?

It includes flash memory for program storage and RAM for data storage.

How do I use the port pins for I/O operations?

The port pins P0, P1, P2, and P3 are used for general-purpose I/O operations, and you can configure them as input or output.

What is the role of the ALE pin?

The ALE pin is used to latch the address in external memory interfacing.

What is the role of the PSEN pin?

The PSEN (Program Store Enable) pin is used to read program memory in external memory configurations.

Can the AT89C51CC03UA-RLTUM be used for real-time clock (RTC) applications?

While it does not have an inbuilt RTC, you can connect an external RTC module via I2C or SPI.

What is the purpose of the VCAP pin?

The VCAP pin is used for connecting a capacitor to stabilize the internal voltage regulator.

Does the AT89C51CC03UA-RLTUM support interrupts?

Yes, it supports both external interrupts (INT0, INT1) and internal interrupts.

What is the function of the RXD and TXD pins?

RXD is the UART receive data pin, and TXD is the UART transmit data pin for serial communication.

How is the AT89C51CC03UA-RLTUM reset?

It is reset through the RST pin, typically with a high signal to trigger the reset process.

Can I use the AT89C51CC03UA-RLTUM for ADC applications?

Yes, the microcontroller supports analog-to-digital conversion for up to 8 channels.

This covers the detailed explanation of the pin functions, circuit principles, packaging, and 20 frequently asked questions related to the AT89C51CC03UA-RLTUM. Let me know if you need further details!