Datasheet

VS1053b Datasheet
5 PACKAGES AND PIN DESCRIPTIONS
1
First pin function is active in New Mode, latter in Compatibility Mode.
2
Unless pull-down resistor is used, SPI Boot is tried. See Chapter 9.9 for details.
3
If I2S_CF_ENA is ’0’ the pins are used for GPIO. See Chapter 10.13 for details.
Pin types:
Type Description
DI Digital input, CMOS Input Pad
DO Digital output, CMOS Input Pad
DIO Digital input/output
DO3 Digital output, CMOS Tri-stated Output
Pad
AI Analog input
Type Description
AO Analog output
AIO Analog input/output
APWR Analog power supply pin
DGND Core or I/O ground pin
CPWR Core power supply pin
IOPWR I/O power supply pin
Version: 1.13, 2011-05-27 12