توضیحات
ميکروکنترلر هاي مبتني بر هسته ي 8051 از جمله ميکروکنترلر هاي قديمي موجود در بازار هستند که هنوز هم براي مقاصد آموزشي و تعمير دستگاه هاي الکترونيکي مورد استفاده قرار ميگيرند .
ميکروکنترلر هاي 8051 براي اولين بار توسط شرکت اينتل در سال 1981 توليد و به بازار ارائه شد ، اين ميکروکنترلر ميتوانند داده ها را به صورت 8 بيتي پردازش کنند . هم اکنون شرکت هاي زيادي در جهان ميکروکنترلر هاي مبتي بر هسته ي 8051 را تحت ليسانس شرکت اينتل توليد و به بازار ارائه ميکنند .
Description
C8051F41x devices are fully integrated, low power, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below. Refer to Table 1.1 for specific product feature selection.
• High-speed pipelined 8051-compatible microcontroller core (up to 50 MIPS)
• In-system, full-speed, non-intrusive debug interface (on-chip)
• True 12-bit 200 ksps ADC with analog multiplexer and 24 analog inputs
• Two 12-bit Current Output DACs
• Precision programmable 24.5 MHz internal oscillator
• Up to 32 kB bytes of on-chip Flash memory
• 2304 bytes of on-chip RAM
• SMBus/I2C, Enhanced UART, and SPI serial interfaces implemented in hardware
• Four general-purpose 16-bit timers
• Programmable Counter/Timer Array (PCA) with six capture/compare modules and Watchdog Timer
function
• Hardware smaRTClock (Real Time Clock) operates down to 1 V with 64 bytes of Backup RAM and a
Backup Voltage Regulator
• Hardware CRC Engine
• On-chip Power-On Reset, VDD Monitor, and Temperature Sensor
• On-chip Voltage Comparators
• Up to 24 Port I/O
With on-chip Power-On Reset, VDD monitor, Watchdog Timer, and clock oscillator, the C8051F41x devices
are truly standalone system-on-a-chip solutions. The Flash memory can be reprogrammed even in-circuit,
providing non-volatile data storage, and also allowing field upgrades of the 8051 firmware. User software
has complete control of all peripherals, and may individually shut down any or all peripherals for power
savings.
The on-chip Silicon Laboratories 2-Wire (C2) Development Interface allows non-intrusive (uses no on-chip
resources), full speed, in-circuit debugging using the production MCU installed in the final application. This
debug logic supports inspection and modification of memory and registers, setting breakpoints, single
stepping, run and halt commands. All analog and digital peripherals are fully functional while debugging
using C2. The two C2 interface pins can be shared with user functions, allowing in-system programming
and debugging without occupying package pins.
Each device is specified for 2.0-to-2.75 V operation (supply voltage can be up to 5.25 V using on-chip regulator) over the industrial temperature range (–45 to +85 °C). The C8051F41x are available in 28-pin QFN
(also referred to as MLP or MLF) or 32-pin LQFP packages.
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