Description
Table 1-1 AC6921A_LQFP48 Pin Description
PIN NO.Name
1 PB0
2 VSSIO 3 VBAT 4 RTCVDD 5 PR1 6 PR2 7 PR3 8 PR0 9 BT_AVDD 10 BT_RF 11 FMIP 12 VSSIO 13 BT_OSCI 14 BT_OSCO
15 PC5
16 PC4
I/O Type
High Drive (mA)
Function
Other Function
I/O
8
GPIO
CLKOUT0： UART1TXA：Uart1 Data Out(A); SPI2CLKA：SPI2 Clock(A); SD1DAT0B：SD1 Data0(B); ALNK_SCLKB：Audio Link Serial Clock (B); SD0DAT3B：SD0 Data3(B); ADC6：ADC Input Channel 6; Touch0：Touch Input Channel 0;
P
/
Ground
P
/
LDO Power
P
/
RTC Pow
Features
- High performance 32-bit RISC CPU
RISC 32-bit CPU DC-160MHz operation Support DSP instructions 64Vectored interrupts 4 Levels interrupt priority
Flexible I/O
33 GPIO pins All GPIO pins can be programmable as input or output individually All GPIO pins are internal pull-up/pull-down selectable individually CMOS/TTL level Schmitt triggered input External wake up/interrupt on all GPIOs
Peripheral Feature
One full speed USB 2.0 OTG controller One audio interface supports IIS, left adjusted, right adju.
AC6921A Datasheet
