ADuC7020: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU
The ADuC7019/ADuC7020/ADuC7021/ADuC7022/ADuC7024/ADuC7025/ADuC7026/ADuC7027/ADuC7028 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 only available on certain models (ADuC7020 and ADuC7026). 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 modes. 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. 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.
ADuC7020 特点
- 提供中文数据手册
- 微控制器
16位/32位RISC架构、ARM7TDMI内核
JTAG端口支持代码下载和调试 - 时钟选项
修正的片内振荡器(±3%)
外部时钟晶体
可达44 MHz的外部时钟源
具有可编程分频器的41.78 MHz PLL - 存储器
62 kB Flash/EE存储器、8 kB SRAM
在线下载，基于JTAG的调试
软件触发在线重新编程能力
- 多通道、12位、1 MSPS ADC
多达16个ADC通道1 - 全差分模式和单端模式
- 模拟输入范围：0 V至 VREF
- 12位电压输出DAC
最多提供4路DAC输出1 - 片内基准电压源
- 片内温度传感器(±3°C)
- 电压比较器
- 功耗
额定工作电压：3 V
主动模式：11 mA (5 MHz)，40 mA (41.78 MHz) - 封装和温度范围
从40引脚、6 mm x 6 mm LFCSP至80引脚LQFP1
额定工作温度范围：–40°C至+125°C - 工具
低成本QuickStart™开发系统
全面的第三方支持
- UART, 2 x I2C® 和 SPI®串行I/O
- 最多40引脚GPIO端口1
- 4个通用定时器
- 唤醒和看门狗定时器(WDT)
- 电源监控器
- 三相、16位PWM发生器1
- 可编程逻辑阵列(PLA)
- 可达512KB的外部存储器接口1
ADuC7020 技术指标
- Flash (kbytes): 0
- SRAM (bytes): 8192Bytes
- GPIO Pins: 14
- ADC # Channels: 5
- MCU Core: ARM7 TDMI
- MCU Speed (MIPS): 40
ADuC7020 应用领域
- Industrial control and automation systems
- Smart sensors, precision instrumentation
- Base station systems, optical networking
ADuC7020 功能框图
| 产品型号 | 产品状态 | 封装 | 引脚 | 温度范围 |
|---|---|---|---|---|
| ADuC7020BCPZ62 | 量产 | 40 ld LFCSP (6x6mm w/4.1mm pad) | 40 | 工业 |
| ADuC7020BCPZ62-RL7 | 量产 | 40 ld LFCSP (6x6mm w/4.1mm pad) | 40 | 工业 |
| ADuC7020BCPZ62I | 量产 | 40 ld LFCSP (6x6mm w/4.1mm pad) | 40 | 工业 |
| ADuC7020BCPZ62I-RL | 量产 | 40 ld LFCSP (6x6mm w/4.1mm pad) | 40 | 工业 |
| ADuC7020BCPZ62IRL7 | 量产 | 40 ld LFCSP (6x6mm w/4.1mm pad) | 40 | 工业 |
| EVAL-ADuC7020MKZ | 量产 | 评估板 | - | 工业 |
| EVAL-ADuC7020QSZ | 量产 | 评估板 | - | 工业 |
| USB-I²C/LIN-CONV-Z | 量产 | 评估板 | - | 工业 |
