ATML – AT89C51 Refurb
Features
- Compatible with MCS-51™ Products
- 4K Bytes of In-System Reprogrammable Flash Memory – Endurance: 1,000 Write/Erase Cycles
- Fully Static Operation: 0 Hz to 24 MHz
- Three-level Program Memory Lock
- 128 x 8-bit Internal RAM
- 32 Programmable I/O Lines
- Two 16-bit Timer/Counters
- Six Interrupt Sources
- Programmable Serial Channel
- Low-power Idle and Power-down Modes
₨250
CompareDescription
The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer which provides a highly-flexible and cost-effective solution to many embedded control applications
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ATML – AVR AT Tiny85
Features
High Performance, Low Power AVR® 8-Bit Microcontroller
Advanced RISC Architecture – 120 Powerful Instructions – Most Single Clock Cycle Execution – 32 x 8 General Purpose Working Registers – Fully Static Operation
Non-volatile Program and Data Memories
- – 2/4/8K Bytes of In-System Programmable Program Memory Flash
- – 128/256/512 Bytes In-System Programmable EEPROM
- – 128/256/512 Bytes Internal SRAM
- – Programming Lock for Self-Programming Flash Program and EEPROM Data Security
Peripheral Features
– 8-bit Timer/Counter with Prescaler and Two PWM Channels
– 8-bit High Speed Timer/Counter with Separate Prescaler
- 2 High Frequency PWM Outputs with Separate Output Compare Registers
- Programmable Dead Time Generator
– USI – Universal Serial Interface with Start Condition Detector – 10-bit ADC
4 Single Ended Channels
2 Differential ADC Channel Pairs with Programmable Gain (1x, 20x)
Temperature Measurement
- – Programmable Watchdog Timer with Separate On-chip Oscillator
- – On-chip Analog Comparator
Special Microcontroller Features
- – debugWIRE On-chip Debug System
- – In-System Programmable via SPI Port
- – External and Internal Interrupt Sources
- – Low Power Idle, ADC Noise Reduction, and Power-down Modes
- – Enhanced Power-on Reset Circuit
- – Programmable Brown-out Detection Circuit
- – Internal Calibrated Oscillator
I/O and Packages
- – Six Programmable I/O Lines
- – 8-pin PDIP, 8-pin SOIC, 20-pad QFN/MLF, and 8-pin TSSOP (only ATtiny45/V)
- Operating Voltage
- – 1.8 – 5.5V for ATtiny25V/45V/85V
- – 2.7 – 5.5V for ATtiny25/45/85
Speed Grade
- – ATtiny25V/45V/85V: 0 – 4 MHz @ 1.8 – 5.5V, 0 – 10 MHz @ 2.7 – 5.5V
- – ATtiny25/45/85: 0 – 10 MHz @ 2.7 – 5.5V, 0 – 20 MHz @ 4.5 – 5.5V
Industrial Temperature Range
Low Power Consumption
- – Active Mode: 1 MHz, 1.8V: 300 µA
- – Power-down Mode: 0.1 µA at 1.8V
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