Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
The DAC output range is programmable to one of two voltage ranges. The DAC outputs have an enhanced feature of being able to retain their output voltage during a watchdog or software reset sequence.
The devices operate from an on-chip oscillator and a PLL, generating an internal high frequency clock of 41.78 MHz. This clock is routed through a programmable clock divider from which the MCU core clock operating frequency is generated. The microcontroller core is an ARM7TDMI®, 16-bit/32-bit RISC machine that offers up to 41 MIPS peak performance. Eight kilobytes of SRAM and 126 kilobytes of nonvolatile Flash/EE memory are provided on chip. The ARM7TDMI core views all memory and registers as a single linear array.
The ADuC7122 contains an advanced interrupt controller. The vectored interrupt controller (VIC) allows every interrupt to be assigned a priority level. It also supports nested interrupts to a maximum level of eight per IRQ and FIQ. When IRQ and FIQ interrupt sources are combined, a total of 16 nested interrupt levels are supported.
On-chip factory firmware supports in-circuit download via the I2C serial interface port, while nonintrusive emulation is also supported via the JTAG interface. These features are incorporated into a low cost QuickStart Development System supporting this MicroConverter® family. The part contains a 16-bit PWM with six output signals.
For communication purposes, the part contains 2 × I2C channels that can be individually configured for master or slave mode. An SPI¯ interface supporting both master and slave modes is also provided.
The parts operate from 3.0 V to 3.6 V and are specified over atemperature range of −10°C to +95°C. The ADuC7122 is available in a 108-Ball BGA package.
- Optical networking, industrial control, and automation systems
- Smart sensors, precision instrumentation, base station systems
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This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
The ADuC7122 is a fully integrated, 1 MSPS, 12-bit data acquisition system, incorporating high performance multichannel ADCs, 12 voltage output DACs, 16-bit/32-bit MCUs, and Flash/EE memory on a single chip.
The QuickStart Plus Kits for the ADuC712x Precision Analog Microcontrollers feature debug via UART and an assembly & C-source debugging environment. In addition the QuickStart Plus Kit allows true non-intrusive JTAG emulation. These kits are intended for any new users who want to have a comprehensive hardware development environment.
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.