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ADuC7029BBCZ62I Datasheet(PDF) 4 Page - Analog Devices |
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ADuC7029BBCZ62I Datasheet(HTML) 4 Page - Analog Devices |
4 / 104 page ADuC7019/20/21/22/24/25/26/27/28/29 Data Sheet Rev. F | Page 4 of 104 GENERAL DESCRIPTION The ADuC7019/20/21/22/24/25/26/27/28/29 are fully integrated, 1 MSPS, 12-bit data acquisition systems incorporating high performance multichannel ADCs, 16-bit/32-bit MCUs, and Flash®/EE memory on a single chip. The ADC consists of up to 12 single-ended inputs. An additional four inputs are available but are multiplexed with the four DAC output pins. The four DAC outputs are available only on certain models (ADuC7020, ADuC7026, ADuC7028, and ADuC7029). However, in many cases where the DAC outputs are not present, these pins can still be used as additional ADC inputs, giving a maximum of 16 ADC input channels. The ADC can operate in single-ended or differential input mode. The ADC input voltage is 0 V to VREF. A low drift band gap reference, temperature sensor, and voltage comparator complete the ADC peripheral set. Depending on the part model, up to four buffered voltage output DACs are available on-chip. The DAC output range is programmable to one of three voltage ranges. The devices operate from an on-chip oscillator and a PLL generating an internal high frequency clock of 41.78 MHz (UCLK). 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, which offers up to 41 MIPS peak performance. Eight kilobytes of SRAM and 62 kilobytes of nonvolatile Flash/EE memory are provided on-chip. The ARM7TDMI core views all memory and registers as a single linear array. On-chip factory firmware supports in-circuit serial download via the UART or I2C serial interface port; 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 parts operate from 2.7 V to 3.6 V and are specified over an industrial temperature range of −40°C to +125°C. When operating at 41.78 MHz, the power dissipation is typically 120 mW. The ADuC7019/20/21/22/24/25/26/27/28/29 are available in a variety of memory models and packages (see Ordering Guide). 1MSPS 12-BIT ADC DAC0 12-BIT DAC DAC1 DAC2 DAC3 3-PHASE PWM (SEE NOTE 1) ADuC7020 XCLKI XCLKO RST VREF MUX TEMP SENSOR BAND GAP REF OSC AND PLL PSM POR CMP0 CMP1 CMPOUT PLA 4 GENERAL- PURPOSE TIMERS 2k × 32 SRAM 31k × 16 FLASH/EEPROM SERIAL I/O UART, SPI, I2C GPIO JTAG ARM7TDMI-BASED MCU WITH ADDITIONAL PERIPHERALS 12-BIT DAC 12-BIT DAC 12-BIT DAC NOTES 1. SEE APPLICATION NOTE AN-798. ADC0 TO ADC4, ADC12 TO ADC15 Figure 2. |
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