ADUC7122

Data Sheet Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU ADuC7122 FEATURES Analog I/O 13-external channel, 12-bit, 1 MSPS ADC 2 differential channels with programmable gain PGA (1 to 5) input range IOVDD power monitor channel On-chip temperature monitor 11 general-purpose inputs Fully differential and single-ended modes 0 V to VREF analog input range 12 × 12-bit voltage output DACs On-chip voltage reference: 1.2 V/2.5 V Buffered output reference sources for use with external circuits Microcontroller ARM7TDMI core, 16-bit/32-bit RISC architecture JTAG port supports code download and debug Clocking options Trimmed on-chip oscillator (±3%) External watch crystal External clock source up to 41.78 MHz 41.78 MHz PLL with programmable divider Memory 126 kB Flash/EE memory, 8 kB SRAM In-circuit download, JTAG-based debug Software-triggered in-circuit reprogrammability On-chip peripherals UART, 2× I2C and SPI serial I/Os 32-pin GPIO port 4 general-purpose timers Wake-up and watchdog timers (WDT) Power supply monitor Vectored interrupt controller for FIQ and IRQ 8 priority levels for each interrupt type Interrupt on edge or level external pin inputs Power Specified for 3 V operation Active mode: 11 mA at 5 MHz, 40 mA at 41.78 MHz Packages and temperature range 7 mm × 7 mm 108-ball BGA Fully specified for −10°C to +95°C operation Tools Low cost QuickStart development system Full third-party support APPLICATIONS Optical networking, industrial control, and automatio...