str912fa STMicroelectronics, str912fa Datasheet - Page 4

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str912fa

Manufacturer Part Number
str912fa
Description
Arm966e-s? 16/32-bit Flash Mcu With Ethernet, Usb, Can, Ac Motor Control, 4 Timers, Adc, Rtc, Dma
Manufacturer
STMicroelectronics
Datasheet

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2.23
2.24
2.25
2.26
2.27
Related documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.1
4.2
Memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
5.1
5.2
5.3
5.4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
General purpose I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
A/D converter (ADC) with DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.24.1 DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Standard timers (TIM) with DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
2.25.1 DMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Three-phase induction motor controller (IMC) . . . . . . . . . . . . . . . . . . . . . . . 30
External memory interface (EMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
LFBGA144 ball connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Default pin functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Buffered and non-buffered writes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
System (AHB) and peripheral (APB) buses . . . . . . . . . . . . . . . . . . . . . . . . . 44
SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Two independent Flash memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
5.4.1
5.4.2
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.2.1
LVD electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
6.3.1
DC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
AC electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
RESET_INn and power-on-reset characteristics . . . . . . . . . . . . . . . . . . . . . 54
Main oscillator electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
RTC oscillator electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
PLL electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
SRAM characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Default configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Optional configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Operating conditions at power-up / power-down . . . . . . . . . . . . . . . . . . . . . . 49
LVD delay timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
STR91xFA

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