4 layers210.8 × 74.9 mm
Bkm-10rlternative
skumlos/bkm-10rlternative
Project aiming to replicate the BKM-10R/11R remote for Sony professional CRT monitors.
257 parts17
Overview
The MAX491EPD is a RS 485 , RS 422 IC made by Maxim Integrated (Analog Devices) in a PDIP-14 package with 14 pins. -40℃~+85℃ 1 1 2.5Mbps 4.75V~5.25V Transceiver PDIP-14 RS-485 / RS-422 ICs.
PCBKit's library has its KiCad symbol (Interface_UART:MAX491E, from KiCad's library) and its footprint (Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C3212097). 8 open-source boards in 3 repositories on GitHub use it.
Symbol
Footprint
Parameters
6- Data Rate
- 2.5Mbps
- Number of Drivers
- 1
- Number of Receivers
- 1
- Operating Temperature
- -40℃~+85℃
- Types
- Transceiver
- Voltage - Supply
- 4.75V~5.25V
Order codes
1- MAX491EPDLCSC C3212097
Pinout
14| Pin | Name | Type |
|---|---|---|
| 1 | NC | Not connected |
| 2 | RO | Output |
| 3 | RE | Input |
| 4 | DE | Input |
| 5 | DI | Input |
| 6 | GND | Power in |
| 7 | GND | Passive |
| 8 | NC | Not connected |
| 9 | Y | Output |
| 10 | Z | Output |
| 11 | B | Input |
| 12 | A | Input |
| 13 | NC | Not connected |
| 14 | VCC | Power in |
Open-source boards using it
All 8- 2 layers97.6 × 44.2 mm
GR ISO Board
GadgetReboot/GR_ISO_Board
Isolation breakout board with a 5V isolated DC-DC converter, optocouplers, Relay, and more.
62 parts1 - 2 layers248.1 × 172.1 mm
Expanders
koko69420/HomeBus
Hard wired home automation, based on a RSICV MCU and RS-422 communication protocol
180 parts - 2 layers60 × 60 mm
Base node
koko69420/HomeBus
Hard wired home automation, based on a RSICV MCU and RS-422 communication protocol
34 parts - 2 layers123.7 × 60.6 mm
Base node clad
koko69420/HomeBus
Hard wired home automation, based on a RSICV MCU and RS-422 communication protocol
37 parts - 2 layers130 × 80 mm
Base node clad v2
koko69420/HomeBus
Hard wired home automation, based on a RSICV MCU and RS-422 communication protocol
36 parts - 2 layers60 × 55 mm
Gateway node
koko69420/HomeBus
Hard wired home automation, based on a RSICV MCU and RS-422 communication protocol
36 parts - 2 layers264 × 124.5 mm
Gateway node dev board
koko69420/HomeBus
Hard wired home automation, based on a RSICV MCU and RS-422 communication protocol
152 parts
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<iframe src="https://pcbkit.io/embed/parts/maxim/MAX491EPD" title="MAX491EPD in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/maxim/MAX491EPD.jpg" alt="MAX491EPD" width="1200" height="900">[](https://pcbkit.io/parts/maxim/MAX491EPD)Questions
Is there a KiCad symbol and footprint for the MAX491EPD?
Yes. The symbol is Interface_UART:MAX491E and the footprint Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the MAX491EPD?
PDIP-14, with 14 pins. Its footprint is drawn on this page.
Where is the MAX491EPD datasheet?
Maxim Integrated (Analog Devices) publishes it: the Datasheet link on this page opens it.
Where can I order the MAX491EPD?
JLCPCB lists it as part C3212097, with 0 in stock; the sellers' links on this page open their listings.
What can replace the MAX491EPD?
Parts like it in the library: the ISL83491IPZ-TUDI by Tudi, the LTC491IN-TUDI by Tudi, the MAX1482CPD-TUDI by Tudi and the MAX3073EEPD-TUDI by Tudi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the MAX491EPD?
8 boards in 3 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
ISL83491IPZ-TUDI
DIP-14-40℃~+85℃ 1 1 10Mbps 3.3V 32 Enable shutdown、Overcurrent Protection、Thermal shutdown protection、Low-power mode、Tx/Rx enable Full-Duplex、Half-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsLTC491IN-TUDI
DIP-140℃~+70℃ 1 1 12Mbps 256 300uA 5V Enable shutdown、Overcurrent Protection、Thermal shutdown protection、Tx/Rx enable、Hot-swap protection Full-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsMAX1482CPD-TUDI
DIP-140℃~+70℃ 1 1 250Kbps 256 5V Enable shutdown、Overcurrent Protection、Thermal shutdown protection、Low-power mode、Tx/Rx enable Full-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsMAX3073EEPD-TUDI
DIP-14-40℃~+85℃ 1 1 256 3V~5.5V 500Kbps Enable shutdown、Low-power mode、Tx/Rx enable、Hot-swap protection Full-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsMAX3076EAPD-TUDI
DIP-14-40℃~+125℃ 1 1 15Mbps 256 3V~5.5V Enable shutdown、Low-power mode、Tx/Rx enable、Hot-swap protection Full-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsMAX3076EEPD-TUDI
DIP-14-40℃~+85℃ 1 1 15Mbps 256 3V~5.5V Enable shutdown、Low-power mode、Tx/Rx enable、Hot-swap protection Full-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsMAX3079EEPD-TUDI
DIP-14-40℃~+85℃ 1 1 15Mbps 256 3V~5.5V Enable shutdown、Low-power mode、Tx/Rx enable、Hot-swap protection Full-Duplex、Half-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICsMAX3080EPD-TUDI
DIP-14-40℃~+85℃ 1 1 10Mbps 256 3V~5.5V Enable shutdown、Low-power mode、Tx/Rx enable、Hot-swap protection Full-Duplex Transceiver ±15kV DIP-14 RS-485 / RS-422 ICs ROHSTudiRS-485 / RS-422 ICs