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รหัสสินค้า | SKU-03320 |
หมวดหมู่ | โมดูลแปลงสัญญาณ (signal conversion) |
ราคา | 125.00 บาท |
สถานะสินค้า | พร้อมส่ง |
ลงสินค้า | 13 ต.ค. 2568 |
อัพเดทล่าสุด | 14 ต.ค. 2568 |
จำนวน | ชิ้น |
Product Feature
Built in high-efficiency isolated power supply
Automatic data transmission and reception function
Baud rate up to 500kbps
Isolation and voltage withstand at both ends 3000VDC
Working environment temperature:- 40℃~+85℃
The same network can support connecting 128 nodes
Integrating isolation and ESD bus protection functions
Standardized packaging method, good compatibility performance
D321D485H-A/ TD521D485H-A,the main function is to convert logical levels into differential levels of RS485 protocol, achieve signal isolation, and is an RS485 protocol transceiver module that uses IC integration technology to achieve power isolation, signal isolation, RS485 communication, and bus protection.
The product has a built-in constant voltage isolation power supply, which can achieve 3000VDC electrical isolation. In addition, the product has automatic switching of transmission and reception functions, eliminating the need for CON pins for transmission and reception control, which reduces the complexity of the design to a certain extent.
Input characteristic(3.3V series)
Project | symbol | Min. | Typ. | Max. | Unit | |
Input power supply voltage |
Vdc |
3.15 |
3.3 |
3.45 |
Vdc |
|
TXD logic level | High level |
VIH |
0.7VCC |
3.3 |
3.6 |
|
Low level |
VIL |
0 |
-- |
0.8 |
||
TXD logic level | High level |
VOH |
VCC-0.4 |
3.1 |
-- |
|
Low level |
VOL |
0 |
0.2 |
0.4 |
||
TXD driving current |
IT |
2 |
-- |
-- |
mA | |
RXD output current | IR | -- | -- | 10 | ||
serial interface | Only compatible with UART interface of+3.3V |
Input characteristic(5V series)
Project | symbol | Min. | Typ. | Max. | Unit | |
Input power supply voltage |
Vdc |
4.75 |
5 |
5.25 |
Vdc |
|
TXD logic level | High level |
VIH |
0.7VCC |
5 |
5.5 |
|
Low level |
VIL |
0 |
-- |
0.8 |
||
TXD logic level | High level |
VOH |
VCC-0.4 |
4.8 |
-- |
|
Low level |
VOL |
0 |
0.2 |
0.4 |
||
TXD driving current |
IT |
2 |
-- |
-- |
mA | |
RXD output current | IR | -- | -- | 10 | ||
serial interface | Only compatible with UART interface of+5V |
Transmit characteristic
Project | symbol | Min. | Typ. | Max. | Unit | |
data-delay |
TXD sending delay |
tT | -- | -- | 250 | ns |
RXD receiving delay |
tR |
-- | -- | 110 |
Iutput characteristic
Project | symbol | Min. | Typ. | Max. | Unit |
differential voltage level |
Vdiff(d),no load resistor |
1.5 |
-- |
-- |
Vdc |
differential input impedance |
-7V≤VCM≤+12V |
96 |
-- | -- |
kΩ |
Built in pull-up and pull-down resistors |
-- | 47 | -- | ||
Isolation output power supply voltage |
Rated input voltage | 4.9 | 5 | 5.3 |
Vdc |
Bus interface protection | ESD electrostatic protection | ||||
Note: The isolated output power pin is only used for external pull-up and pull-down resistors (recommended maximum current<25mA) and is not recommended for other purposes. |
หน้าที่เข้าชม | 563,672 ครั้ง |
ผู้ชมทั้งหมด | 321,315 ครั้ง |
ร้านค้าอัพเดท | 19 ต.ค. 2568 |