STR751FR1 STMicroelectronics, STR751FR1 Datasheet - Page 29

• Manufacturer Part Number: STR751FR1
• Description: 32-bit MCU
• Manufacturer: STMicroelectronics

Specifications of STR751FR1

• Smart Low Power Modes: SLOW, WFI, STOP and STANDBY with backup registers
• Conversion Time: min. 3.75 μs

STR750Fxx STR751Fxx STR752Fxx STR755Fxx
6.1.7
6.1.8
Power supply scheme 4: Dual external 1.8 V and 5.0 V supply
Figure 11. Power supply scheme 4
I/O characteristics versus the various power schemes (3.3V or 5.0V)
Unless otherwise mentioned, all the I/O characteristics are valid for both
●
●
When V
Current consumption measurements
All the current consumption measurements mentioned below refer to Power scheme 1 and 2
as described in
V
V
DD_IO
DD_IO
+/-0.5V
V
DD_IO
5.0V
DD_IO
1.8V
VREG_DIS
V
V
V
V
V
V
V
GP I/Os
ADC
=3.0 V to 3.6 V with bit EN33=1
=4.5 V to 5.5 V with bit EN33=0
SS_BKP
DD_ADC
SS_ADC
V
18_BKP
SS_PLL
DD_PLL
V
DD_IO
V
18REG
=3.0 V to 3.6 V, I/Os are not 5V tolerant.
SS_IO
SS18
V
IN
18
Figure 12
5.0V
5.0V
V
IO
=5.0V
and
LOW POWER
REGULATOR
REGULATOR
VOLTAGE
ADC
VOLTAGE
OUT
PLL
IN
MAIN
OFF
Figure 13
OFF
NOTE : THE EXTERNAL 5.0V POWER SUPPLY MUST ALWAYS BE KEPT ON
V
V
MVREG
LPVREG
I/O LOGIC
POWER
SWITCH
V
BACKUP
V
CORE
Electrical parameters
BACKUP REGISTERS)
WAKEUP LOGIC,
(OSC32K, RTC
CIRCUITRY
MEMORIES)
BACKUP
DIGITAL &
(CORE &
KERNEL
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