• 6-channel 247 kSPS ADC with 12-bit resolution
• Dual 12-bit DACs with 15 µs settling time
• 8 kbytes Flash/EE program memory with 100-year retention
• 640 bytes Flash/EE data memory
• 256 bytes on-chip data RAM
• 8051 compatible instruction set
• 32 kHz external crystal with on-chip programmable PLL (16.78 MHz max)
• Three 16-bit timer/counters
• 11 programmable I/O lines and 11 interrupt sources
• Low power operation: 3 mA @ 3 V (core CLK = 2.1 MHz)
• Power-down mode: 15 µA (32 kHz oscillator running)
• Temperature monitor (±1.5°C accuracy)
• 28-lead TSSOP package (4.4 mm × 9.7 mm)
• Operating temperature range: −40°C to +125°C

The ADuC814 is a fully integrated 247 kSPS, 12-bit data acquisition system incorporating a high performance multichannel ADC, an 8-bit MCU, and program/data Flash/EE memory on a single chip.

This low power device operates from a 32 kHz crystal with an on-chip PLL generating a high frequency clock of 16.78 MHz. The microcontroller core is an 8052 and is compatible with an 8051 instruction set.

The ADuC814 also incorporates additional analog functionality with dual 12-bit DACs, a power supply monitor, and a band gap reference. On-chip digital peripherals include a watchdog timer, time interval counter, three timer/counters, and two serial I/O ports (SPI and UART).

• Optical networking - laser power control
• Base station systems - power amplifier bias control
• Precision instruments and smart sensors
• Battery-powered systems
• Precision system monitors

Standard export packaging available. Customers can choose from cartons, wooden cases and wooden pallets according to their requirements.