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ADUC7021 Datasheet(PDF) 2 Page - Analog Devices |
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ADUC7021 Datasheet(HTML) 2 Page - Analog Devices |
2 / 104 page ADuC7019/20/21/22/24/25/26/27/28/29 Data Sheet Rev. F | Page 2 of 104 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 3 General Description ......................................................................... 4 Detailed Block Diagram .............................................................. 9 Specifications................................................................................... 10 Timing Specifications ................................................................ 13 Absolute Maximum Ratings.......................................................... 20 ESD Caution................................................................................ 20 Pin Configurations and Function Descriptions ......................... 21 ADuC7019/ADuC7020/ADuC7021/ADuC7022 .................. 21 ADuC7024/ADuC7025 ............................................................. 25 ADuC7026/ADuC7027 ............................................................. 28 ADuC7028................................................................................... 31 ADuC7029................................................................................... 33 Typical Performance Characteristics ........................................... 35 Terminology .................................................................................... 38 ADC Specifications .................................................................... 38 DAC Specifications..................................................................... 38 Overview of the ARM7TDMI Core............................................. 39 Thumb Mode (T)........................................................................ 39 Long Multiply (M)...................................................................... 39 EmbeddedICE (I) ....................................................................... 39 Exceptions ................................................................................... 39 ARM Registers ............................................................................ 39 Interrupt Latency........................................................................ 40 Memory Organization ................................................................... 41 Memory Access........................................................................... 41 Flash/EE Memory....................................................................... 41 SRAM........................................................................................... 41 Memory Mapped Registers....................................................... 41 ADC Circuit Overview .................................................................. 45 Transfer Function ....................................................................... 45 Typical Operation....................................................................... 46 MMRs Interface.......................................................................... 46 Converter Operation.................................................................. 48 Driving the Analog Inputs ........................................................ 49 Calibration................................................................................... 50 Temperature Sensor ................................................................... 50 Band Gap Reference................................................................... 50 Nonvolatile Flash/EE Memory ..................................................... 51 Programming.............................................................................. 51 Security ........................................................................................ 52 Flash/EE Control Interface ....................................................... 52 Execution Time from SRAM and Flash/EE............................ 54 Reset and Remap........................................................................ 54 Other Analog Peripherals.............................................................. 56 DAC.............................................................................................. 56 Power Supply Monitor............................................................... 57 Comparator................................................................................. 57 Oscillator and PLL—Power Control........................................ 58 Digital Peripherals.......................................................................... 61 3-Phase PWM............................................................................. 61 Description of the PWM Block................................................ 62 General-Purpose Input/Output................................................ 67 Serial Port Mux........................................................................... 70 UART Serial Interface................................................................ 70 Serial Peripheral Interface......................................................... 74 I2C-Compatible Interfaces......................................................... 76 Programmable Logic Array (PLA)........................................... 80 Processor Reference Peripherals................................................... 83 Interrupt System......................................................................... 83 Timers.......................................................................................... 84 External Memory Interfacing ................................................... 89 Hardware Design Considerations ................................................ 93 Power Supplies............................................................................ 93 Grounding and Board Layout Recommendations................. 94 Clock Oscillator.......................................................................... 94 Power-On Reset Operation....................................................... 95 Typical System Configuration .................................................. 95 Development Tools......................................................................... 96 PC-Based Tools........................................................................... 96 In-Circuit Serial Downloader................................................... 96 Outline Dimensions....................................................................... 97 Ordering Guide ........................................................................ 101 |
Similar Part No. - ADUC7021_15 |
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Similar Description - ADUC7021_15 |
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