STM32F107RB STMicroelectronics, STM32F107RB Datasheet - Page 93

• Manufacturer Part Number: STM32F107RB
• Description: Mainstream Connectivity line, ARM Cortex-M3 MCU with 128 Kbytes Flash, 72 MHz CPU, Ethernet MAC, CAN and USB 2.0 OTG
• Manufacturer: STMicroelectronics

Specifications of STM32F107RB

• Core: ARM 32-bit Cortex™-M3 CPU
• Conversion Range: 0 to 3.6 V
• Dma: 12-channel DMA controller
• Supported Peripherals: timers, ADCs, DAC, I2Ss, SPIs, I2Cs and USARTs
• Systick Timer: a 24-bit downcounter
• 10/100 Ethernet Mac With Dedicated Dma And Sram (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages

STM32F105xx, STM32F107xx
Figure 50. RMII with a 50 MHz oscillator
1. HCLK must be greater than 25 MHz.
Figure 51. RMII with a 25 MHz crystal and PHY with PLL
1. HCLK must be greater than 25 MHz.
25 MHz
50 MHz
XTAL
OSC
HCLK
MCU
TIM2
HCLK
MCU
TIM2
OSC
2.5 or 25 MHz
2.5 or 25 MHz
(1)
(1)
Timer
input
trigger
Timer
input
trigger
Timestamp
IEEE1588 PTP
comparator
Timestamp
Ethernet
MAC 10/100
IEEE1588 PTP
comparator
STM32F107xx
Ethernet
MAC 10/100
STM32F107xx
PLL
PLL
synchronous
synchronous
/2 or /20
Doc ID 15274 Rev 6
/2 or /20
HCLK
HCLK
50 MHz
50 MHz
RMII_TX_EN
RMII_TXD[1:0]
RMII_RXD[1:0]
RMII_CRX_DV
RMII_REF_CLK
PHY_CLK 25 MHz
RMII_TX_EN
RMII_TXD[1:0]
RMII_RXD[1:0]
RMII_CRX_DV
RMII_REF_CLK
PHY_CLK
MDIO
MDC
MDIO
MDC
50 MHz
Application block diagrams
XT1
REF_CLK
XT1
= 7 pins
RMII
= 7 pins
RMII
PHY 10/100
PHY 10/100
PLL
Ethernet
Ethernet
50 MHz
RMII + MDC
= 9 pins
RMII + MDC
= 9 pins
ai15658
ai15657
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