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参数资料
| 型号： | ADUC7061BCPZ32-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/108页 |
| 文件大小： | 0K |
| 描述： | IC MCU 16/32BIT 32KB 32LFCSP |
| 产品变化通告： | ADuC7060/1 Idd Specification Change 01/Feb/2010 |
| 设计资源： | USB Based Temperature Monitor Using ADuC7061 and an External RTD (CN0075) 4 mA-to-20 mA Loop-Powered Temperature Monitor Using ADuC7060/1 (CN0145) |
| 标准包装： | 5,000 |
| 系列： | MicroConverter® ADuC7xxx |
| 核心处理器： | ARM7 |
| 芯体尺寸： | 16/32-位 |
| 速度： | 10MHz |
| 连通性： | I²C，SPI，UART/USART |
| 外围设备： | POR，PWM，温度传感器，WDT |
| 输入/输出数： | 8 |
| 程序存储器容量： | 32KB（16K x 16） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 1K x 32 |
| 电压 - 电源 (Vcc/Vdd)： | 2.375 V ~ 2.625 V |
| 数据转换器： | A/D 5x24b，8x24b，D/A 1x14b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 32-VFQFN 裸露焊盘，CSP |
| 包装： | 带卷 (TR) |
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ADuC7060/ADuC7061
Data Sheet
Rev. D | Page 104 of 108
HARDWARE DESIGN CONSIDERATIONS
POWER SUPPLIES
The ADuC706x operational power supply voltage range is
2.375 V to 2.625 V. Separate analog and digital power supply
pins (AVDD and DVDD, respectively) allow AVDD to be kept
relatively free of noisy digital signals often present on the
system DVDD line. In this mode, the part can also operate with
split supplies; that is, it can use different voltage levels for each
supply. For example, the system can be designed to operate
with a DVDD voltage level of 2.6 V, whereas the AVDD level
can be at 2.5 V or vice versa. A typical split supply
configuration is shown in Figure 28.
ADuC7060/
ADuC7061
0.1F
ANALOG
SUPPLY
10F
AVDD
DVDD
DGND
AGND
0.1F
+
–
DIGITAL
SUPPLY
10F
+
–
07079-
022
Figure 28. External Dual Supply Connections
As an alternative to providing two separate power supplies, the
user can reduce noise on AVDD by placing a small series
resistor and/or ferrite bead between AVDD and DVDD, and then
decoupling AVDD separately to ground. An example of this
configuration is shown in Figure 29. With this configuration,
other analog circuitry (such as op amps, voltage reference, and
others) can be powered from the AVDD supply line as well.
ADuC7060/
ADuC7061
0.1F
ANALOG
SUPPLY
10F
AVDD
DVDD
DGND
AGND
0.1F
DIGITAL
SUPPLY
BEAD
10F
+
–
07079-
023
Figure 29. External Single Supply Connections
Notice that in both Figure 28 and Figure 29, a large value (10 F)
reservoir capacitor sits on DVDD, and a separate 10 F
capacitor sits on AVDD. In addition, local, small value (0.1 F)
capacitors are located at each AVDD and DVDD pin of the chip.
As per standard design practice, be sure to include all of these
capacitors and ensure that the smaller capacitors are close to the
AVDD pin with trace lengths as short as possible. Connect the
ground terminal of each of these capacitors directly to the
underlying ground plane.
Note that the analog and digital ground pins on the ADuC706x
must be referenced to the same system ground reference point
at all times.
Finally, note that, when the DVDD supply reaches 1.8 V, it must
ramp to 2.25 V in less than 128 ms. This is a requirement of the
internal power-on reset circuitry.
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