jielie

DV16

• Series: AC540N and AC560N
• CPU core: dual-core pi32v2, rated at 240 MHz
• SRAM: 64 KiB at least
• SDRAM: 32 MiB seems like - DDR1 (AC56xx) or DDR2 (AC54xx)
• Additional info:
  • I/O function map
  • Memory map

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AC540N

• Internal DRAM is DDR2, so the DRVDD is 1.8v (~ e.g. MSD7T01 vs MSD7T03)

Chips

AC5401A

• Package: eLQFP128

AC5401B

• Package: eLQFP128

AC5402

• Package: QFN88

AC5403

• Package: QFN88

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AC560N

• Internal DRAM is DDR1, so the DRVDD is 2.5v

Chips

AC5601A

• Package: eLQFP128