Is the nRF52840 Pin compatible with the nRF5340

[trug]

Hi all

1. We want to use the new radio nRF5340. Is it fully pin ompatible with the older nRF52840? (Antenna, programming interface, clocks, supply, etc.)

2. On the nRF52840 we need 2x SPI (2-wire), 2x UART (2-wire) and 1x I2C peripherals. Is these possible on the nRF5340?

(Documentation: 0x50008000, 0x50009000, 0x5000A000, , 0x5000B000, , 0x5000C000)

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fstruct_nrf52%2Fstruct%2Fnrf52840.html&cp=3_0

Kindly regards

Dominique

[Stian Røed Hafskjold]

1. The nRF5340 is not pin compatible with the nRF52840 at all:

https://infocenter.nordicsemi.com/topic/ps_nrf52840/pin.html?cp=4_0_0_6_0_0#aqfn73

https://infocenter.nordicsemi.com/topic/ps_nrf5340/chapters/pin.html?cp=3_0_0_8_0_0#aqfn94

2. Yes, you can use 2x SPI, 2x UART and 1x I2C at the peripheral addresses: 0x50008000, 0x50009000, 0x5000A000, 0x5000B000, 0x5000C000

[trug]

Thanks!

I found the company Rigado / u-blox. The design PCBs which are fully compatible for the nrf52 series.

https://www.mouser.ch/new/rigado/rigado-bmd-360-a-r-module/

"The BMD-360-A-R can be used as a drop-in replacement for the BMD-300/301/330 and completes Rigado's BMD-360-A-R Series lineup. The module has an optimized peripheral set that is attractive for a wide range of cost-sensitive applications. BMD-360-A-R designs are footprint compatible with the BMD-300/301/330/340/341, providing low-cost flexibility for tiered product lineups."

Xtals for Clocks, C, L and the antenna are also on the PCB of rigado / u-blox.

However, the price is twice as expensive as for a single nordic radio. Maybe they will design a new PCB version for the nRF53 series.

Regards

Dominique