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PD69210 датащи(PDF) 6 Page - Microchip Technology

номер детали PD69210
подробное описание детали  PoE PSE Controller Datasheet
PDF  21 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PD69210 датащи(HTML) 6 Page - Microchip Technology

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1.8
UART or I2C Address Selection
The choice of UART or I2C interface between the host CPU is made by applying a specific voltage level to pin #13
(I2C_ADDR_MEAS) on the PD69210, or by applying a specific voltage level to pin #22 (I2C_ADDR_MEAS) on the
PD69220. Additionally, the specific I2C address is also set by this voltage level. In all cases, the voltage is set via an
external resistor divider as shown in the following figure.
Figure 1-3. I2C Address Selection
The specific Value of R to choose UART or I2C and to set the address is given in the following tables for PD69210
and PD69220.
Table 1-2. I2C Address Selection
I2C Address (Hexadecimal)
R1- KΩ (1%)
UART
N.C.
0x4
147
0x8
86.6
0xC
57.6
0x10
43.2
0x14
34
0x18
26.7
0x1C
22.1
0x20
18.2
0x24
15.4
0x28
13
0x2C
11
0x30
9.31
0x34
7.87
0x38
6.49
0x3C
5.49
PD69210/PD69220
Architecture
© 2020 Microchip Technology Inc.
Datasheet
DS00003424A-page 6



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