Description

The ADUC814ARUZ is a fully integrated 247 kSPS 12-bit data acquisition system with a high-performance multichannel ADC, an 8-bit MCU, and program/data Flash/EE memory on a single chip. This microcontroller falls under the category of Microcontrollers and has various applications in devices like precision instruments and smart sensors, battery-powered systems, and general precision system monitors.

Specifications and features

• Analog I/O
• 6-Channel 247 kSPS ADC
• 12-Bit Resolution
• ADC High-Speed Data Capture Mode
• Programmable Reference via On-Chip DAC for Low-Level Inputs
• ADC Performance Down to VREF of 0.1 V
• Dual-Voltage Output DACs
• 12-Bit Resolution, 15 μs Settling Time
• 8 KBytes On-Chip Flash/EE Program Memory
• 640 Bytes On-Chip Flash/EE Data Memory
• Flash/EE, 100-Year Retention, 100 K Cycles Endurance
• Three Levels of Flash/EE Program Memory Security
• In-Circuit Serial Download (No External Hardware Required)
• 256 Bytes On-Chip Data RAM
• 8051 Based Core
• 8051 Compatible Instruction Set
• 32 kHz External Crystal
• On-Chip Programmable PLL (16.78 MHz Max)
• Three 16-Bit Timer/Counters
• 11 Programmable I/O Lines
• 11 Interrupt Sources, Two Priority Levels
• Specified for 3 V and 5 V Operation
• Normal: 3 mA @ 3 V (Core CLK = 2.1 MHz)
• Power-Down: 15 μA at 3 V (32 kHz Running)
• Power-On Reset Circuit (No Need for External POR Device)
• Temperature Monitor (1.5°C)
• Precision Voltage Reference
• Time Interval Counter (Wake-Up/RTC Timer)
• UART Serial I/O
• SPI®/I2C® Compatible Serial I/O
• Watchdog Timer (WDT) and Power Supply Monitor (PSM)
• 28-Lead TSSOP 4.4 mm x 9.7 mm Body Package
• Fully Specified for –40°C to +125°C Operation

Application Scenarios

• Optical Networking—Laser Power Control
• Base Station Systems—Power Amplifier Bias Control
• Precision Instruments and Smart Sensors
• Battery-Powered Systems and General Precision System Monitors

Comparison

• Integrated Data Acquisition System with multichannel ADC, an 8-bit MCU, and program/data Flash/EE memory on a single chip
• Low-power consumption in power-down mode (15 μA at 3 V)
• Programmable PLL with 16.78 MHz max frequency
• Power-On Reset Circuit (No Need for External POR Device)

• No significant disadvantage found