Precision Analog Microcontroller - Analog Devices
Description
Data Sheet
Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
ADuC7019/20/21/22/24/25/26/27/28/29
FEATURES
Analog I/O Multichannel, 12-bit, 1 MSPS ADC Up to 16 ADC channels1 Fully differential and single-ended modes 0 V to VREF analog input range 12-bit voltage output DACs Up to 4 DAC outputs available1 On-chip voltage reference On-chip temperature sensor (±3°C) Voltage comparator
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 44 MHz 41.
78 MHz PLL with programmable divider
Memory 62 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/O Up to 40-pin GPIO port1 4× general-purpose timers Wake-up and watchdog timers (WDT) Power supply monitor 3-phase, 16-bit PWM generator1 Programmable logic array (PLA) External memory interface, up to 512 kB1
Power Specified for 3 V operation Active mode: 11 mA at 5 MHz, 40 mA at 41.
78 MHz
Packages and temperature range From 40-lead 6 mm × 6 mm LFCSP to 80-lead LQFP1 Fully specified for –40°C to +125°C operation
Tools Low cost QuickStart development system Full third-party support
APPLICATIONS
Industrial control and automation systems Smart sensors, precision instrumentation Base station systems, optical networking
FUNCTIONAL BLOCK DIAGRAM
ADC0 TO ADC4, ADC12 TO ADC14
ADC15 CMP0 CMP1
CMPOUT VREF
XCLKI XCLKO
RST
MUX
1MSPS 12-BIT ADC
TEMP SENSOR
BAND GAP REF
ADuC7019
12-BIT DAC
12-BIT DAC
12-BIT DAC
OSC AND PLL
PSM
POR
PLA
ARM7TDMI-BASED MCU WITH ADDITIONAL PERIPHERALS
2k × 32 SRAM 31k × 16 FLASH/EEPROM
GPIO
4 GENERAL-
SERIAL I/O
PURPOSE TIMERS UART, SPI, I2C
JTAG
3-PHASE PWM
(SEE NOTE 1)
DAC0 DAC1 DAC2
04955-100
NOTES 1.
SEE APPLICATION NOTE AN-798.
1 Depending on part model.
See Ordering Guide for more information.
Figure 1.
Re...
Similar Datasheet
