jielie

BR23

• Series: AC695N and AC635N
• CPU Core: pi32v2
• SRAM: 208k in total:
  • 176k of RAM0
  • 16k of “non-volatile” RAM1
  • 16k of icache RAM
  • a portion of it is used for interrupt vector table
  • first 16k of RAM0 are occupied by a data cache when e.g. using PSRAM.
• MaskROM: 10k
• Memory can be expanded with the QSPI PSRAM, up to 8 MiB.
• Additional info:
  • I/O function map
  • Memory map

---

AC695N

Chip feature table

Chip	Package	Flash	DAC
AC6951C	LQFP48	8 Mbit	stereo
AC6951F	LQFP48	8 Mbit
AC6951G	LQFP48	4 Mbit
AC6951T	LQFP48	8 Mbit
AC6952D	SSOP28	4 Mbit
AC6955F	QSOP24	4, 8 Mbit	stereo
AC6955H	QSOP24	4, 8 Mbit
AC6956C	QFN32 4x4mm		stereo
AC6956F	QFN32 4x4mm		quadro

Chips

AC6951C

• Package: LQFP48
• Datasheet
• Stereo DAC

AC6951F

• Package: LQFP48

AC6951G

• Package: LQFP48

AC6951T

• Package: LQFP48

AC6925D

• Package: SSOP28

AC6955F

• Package: QSOP24
• Datasheet
• Stereo DAC

AC6955H

• Package: QSOP24

AC6956C

• Package: QFN32 4x4mm
• Datasheet
• Stereo DAC

AC6956F

• Package: QFN32 4x4mm
• Datasheet
• Quadro (4 channel) DAC

AC635N

Audio-less versions of AC695N chips, which have additional GPIOs exposed in place of audio-related pins. Otherwise they’re nearly identical to their audio-enabled counterparts.