AT89C4051-12SU

Program Memory Type:	FLASH
Base Part Number:	AT89C4051
Supplier Device Package:	20-SOIC
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Operating Temperature:	-40°C ~ 85°C (TA)
Oscillator Type:	Internal
Data Converters:	--
Voltage - Supply (Vcc/Vdd):	2.7 V ~ 6 V
RAM Size:	128 x 8
EEPROM Size:	--
Series:	89C
Program Memory Size:	4KB (4K x 8)
Number of I/O:	15
Peripherals:	Brown-out Detect/Reset, LED, POR
Connectivity:	UART/USART
Speed:	12MHz
Core Size:	8-Bit
Core Processor:	8051
Part Status:	Active
Packaging:	Tube

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<p>The AT89C4051-12SU microcontroller is a single-chip 8-bit CMOS microcontroller developed by Atmel Corporation. It has a single-cycle 8-bit CPU with up to 12K bytes of In-System Programmable (ISP) Flash memory. It is equipped with powerful on-chip peripherals such as a universal serial port (USART), an 8-bit timer/counter, a 10-bit analog-to-digital converter (ADC), a pulse width modulation (PWM) output module and power management unit. The on-chip debug feature allows users to debug and program the microcontroller without the need for an external debugger/programmer.</p><p>The AT89C4051-12SU is suitable for a wide range of applications, including power supply control, motor control, remote control, robotics, sensor interfacing and system monitoring. It can be used in a wide range of embedded applications due to its wide range of on-chip peripherals and its scalability.</p><p>The AT89C4051-12SU microcontroller works with a single-cycle 8-bit CPU core and can execute up to 12K bytes of program memory. It utilizes a Harvard architecture that supports separate instruction and data address spaces. It features three 16-bit program counters (PC0, PC1 and PC2) and four 16-bit address registers (AR0, AR1, AR2 and AR3).</p><p>The AT89C4051-12SU microcontroller also features a 256-byte RAM and a 32-byte I/O area. It is equipped with five 16-bit timers (TMR1, TMR2, TMR3, TMR4 and TMR5), a universal serial port (USART), a 10-bit analog-to-digital converter (ADC), a pulse width modulation (PWM) output module and a power management unit (PMU). The microcontroller also has an integrated on-chip debug feature that enables users to debug and program the microcontroller without the need for an external debugger/programmer.</p><p>The AT89C4051-12SU microcontroller has several modes to control the system, including active mode, idle mode, sleep mode and power-down mode. Active mode is the normal operating mode of the microcontroller. When the system is in active mode, it can perform various operations. Idle mode is used to power down the system while maintaining the contents of the RAM. Sleep mode allows the system to be put into a low-power standby mode with all the peripherals remaining active. In this mode, the microcontroller conserves power by reducing its clock frequency and remaining in a reduced frequency operation. Power-down mode is used when the system needs to be completely powered off.</p><p>The AT89C4051-12SU microcontroller is a powerful and reliable 8-bit microcontroller suitable for a variety of embedded applications. Its on-chip peripherals, scalability and low power consumption makes it a great choice for applications such as power supply control, motor control, remote control, robotics, sensor interfacing and system monitoring.</p>

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