STM32F103x8, STM32F103xB
Figure 1. STM32F103xx performance line block diagram
TRACECLK
TRACED[0:3]
as AS
TPIU
SW/JTAG
Trace/trig
Description
pbu s
Ibus
Trace
Controlle r
flash obl
Inte rfac e
POWER
VOLT. REG.
3.3V
TO 1.8V
@VDD
NJTRST
TRST
JTDI
JTCK/SWCLK
JTMS/SWDIO
JTDO
as AF
V
DD
= 2 to
3.6V
V
SS
Cortex-M3 CPU
F
max
: 7 2M Hz
Dbus
Flash 128 KB
64 bit
BusM atrix
NVIC
Syst em
SRAM
20 KB
PCLK1
PCLK2
HCLK
FCLK
RC
8
MHz
RC 40 kHz
@VDDA
@VBAT
PLL &
CLOCK
MANAGT
@VDD
XTAL OSC
4-16 MHz
OSC_IN
OSC_OUT
GP DMA
AHB:F
max
=48/72 MHz
7 ch annels
IWDG
Stand by
in terface
@VDDA
SUPPLY
SUPERVISION
POR / PDR
PVD
80AF
PA[ 15:0]
PB[ 15:0]
PC[15:0]
PD[15:0]
PE[15:0]
EXTI
WAKEUP
GPIOA
GPIOB
GPIOC
GPIOD
GPIOE
APB2 : F
max
=48 / 72 MHz
Rst
Int
V
BAT
OSC32_IN
OSC32_OUT
TAMPER-RTC
NRST
VDDA
VSSA
XTAL
32
kHz
AHB2
APB2
AHB2
APB 1
RTC
AWU
Back up
reg
Backu p i nterf ace
TIM2
TIM3
APB1 : F
max
=24 /
36
MHz
TIM 4
USART2
USART3
SPI2
2x(8x16bit)
I2C1
I2C2
bx CAN
USB 2.0 FS
4 Chann els
4 Chann els
4 Chann els
RX,TX, CTS, RTS,
CK, SmartCard as AF
RX,TX, CTS, RTS,
CK, SmartCard as AF
MOSI,MISO,SCK,NSS
as AF
SCL,SDA,SMBA
as AF
SCL,SDA
as AF
USBDP/CAN_TX
USBDM/CAN_RX
4 Chann els
3
co mpl. Chann els
ETR and BKIN
MOSI,MISO,
SCK,NSS as AF
RX,TX, CTS, RTS,
Smart Card as AF
TIM1
SPI1
USART1
@VDDA
16AF
V
REF+
V
REF-
12bit ADC1 IF
SRAM 512B
12bi t ADC2 IF
WWDG
Temp sensor
ai14390d
1. T
A
= –40 °C to +105 °C (junction temperature up to 125 °C).
2. AF = alternate function on I/O port pin.
DocID13587 Rev 16
11/105
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