Datasheet

© 2020 QuickLogic Corporation www.quicklogic.com 95
10. Device Characteristics
Pinout and Pin Description
The following table lists the input and output (I/O) locations and functions for each of the IO pins in EOS S3. It is important
to note two things:
• There is at least one default function assigned to each IO (and its default = 0)
• The EOS S3 software does not configure the IO if it is being used as a default
NOTE: Table 28 lists the default functions in bold for all EOS S3 IO pins in the Alternate Functions column. This convention
visually indicates the default function for each IO. There are also cases indicated where end-users may choose to bootstrap
IO pins to suit specific product-based requirements and these are noted (for example, see IO 14).
NOTE: The QFN pinout information is provided as reference for QuickFeather board only. The QFN package is not in mass
production.
Table 31: EOS S3 Ultra Low Power multicore MCU Platform Pinout
Signal Name Signal
Type
I/O Bank WCLSP
Ball
BGA
Ball
QFN
c
Description Alternate Function
ADC0 ANALOG ANALOG B2 A7 48 ADC 0 Input
ADC1 ANALOG ANALOG -- C7 47 ADC 1 Input
AGND ANA C3 A8 43 Analog Ground
AVDD ANA C2 D8 46 Analog Power
FSOURCE VPP E5 G3 19 Connect to ground
GND GND C4, C5 D3, D4, D5 GND Ground
LDO_VIN POWER B3 A6 50, 52 Internal LDO Power
Input
XTAL_IN ANALOG ANALOG A1 B8 44 32 kHz Crystal 32 kHz Clock Input
XTAL_OUT ANALOG ANALOG B1 C8 45 32 kHz Crystal
IO_0 IO VCCIOA A7 B1 4
FBIO_0
a
, SCL_0
IO_1 IO VCCIOA B7 C1 5 FBIO_1, SDA_0
IO_2 IO VCCIOA -- A1 6 FBIO_2,
SPI_SENSOR_SSn2,
DEBUG_MON_0,
BATT_MON,
SENSOR_INT_1
IO_3 IO VCCIOA C7 A2 2 FBIO_3,
SENSOR_INT_0
IO_4 IO VCCIOA -- B2 3 FBIO_4,
SPI_SENSOR_SSn3,
DEBUG_MON_1,
SDA_1_DPU,
SENSOR_INT_2
IO_5 IO VCCIOA -- C3 64 FBIO_5,
SPI_SENSOR_SSn4,
DEBUG_MON_2,
SDA_0_DPU
,