NXP Semiconductors
UM12018
FRDM-MCXN947 Board User Manual
Figure 13. uSDHC card connection selection resistors
2.8 Flash memory interface
The target MCU (MCXN947) features one Flexible Serial Peripheral Interface (FlexSPI) controller, which can
support an external memory.
On the FRDM-MCXN47 board, the MCU MCXN947 FlexSPI controller can connect either to an onboard QSPI
flash memory (U8) or to an octal flash memory (U7). The footprint of U7 and U8 is overlapped, where U8 is
populated by default and U7 is DNP.
The flash memory VCC is supplied by the P3V3 rail.
Table 15 provides the details of the flash memory used on the board.
Part
identifier
Manufacturer and part name Description
U8 Winbond W25Q64JVSSIQ
[1]
It is a 3 V 64 Mbit (8 MB) serial flash memory with dual and quad SPI,
which is intended for demonstrating FlexSPI boot applications, and
general FlexSPI operation.
For main features, refer to device data sheet.
U7 Micron Technology MT35XL512
ABA1G12
512 Mbit, 2.7 V - 3.6 V, Octal I/O type, 64 MB T-PBGA NOR Flash
memory
Table 15. Flash memory
[1] The other option of QSPI Flash memory that can be used on the board is MT25QL128ABA1ESE-0SIT (MICRON).
Figure 14 shows the flash memory circuit diagram.
UM12018 All information provided in this document is subject to legal disclaimers. © 2024 NXP B.V. All rights reserved.
User manual Rev. 1 — 20 January 2024
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