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STM32L552CEU6PTR 数据表(PDF) 147 Page - STMicroelectronics

部件名 STM32L552CEU6PTR
功能描述  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS
PDF  340 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32L552CEU6PTR 数据表(HTML) 147 Page - STMicroelectronics

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DS12737 Rev 6
147/340
STM32L552xx
Electrical characteristics
307
Table 28. SMPS modes summary
Ranges
Max AHB clock VCORE
SMPS mode
VDD ≤ 2.05 V
VDD > 2.05 V
Range 0
110 MHz
1.28 V
Automatic Bypass mode
V15SMPS = VDD
HP mode
Max current consumption = 120 mA
V15SMPS = 1.6 V
Range 1
80 MHz
1.2 V
Automatic Bypass mode
V15SMPS = VDD
HP mode
Max current consumption = 80 mA
V15SMPS = 1.5 V
Range 2
26 MHz
1.0 V
Software Bypass mode(1)
V15SMPS = VDD
LP mode or HP mode
Max current consumption = 30 mA
V15SMPS = 1.3 V
1. There is no automatic SMPS bypass in Range 2. The user application should use PVD0 to monitor VDD supply and request
the SMPS Bypass mode.
Table 29. SMPS characteristics(1)
1. Guaranteed by design.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDSMPS
SMPS power supply
1.71(2)
2. When VDDSMPS is less than 2.05V, the SMPS bypass mode is forced by hardware in Range 0 and
Range 1. In Range 2, there is no automatic switch into SMPS bypass mode. It should be requested by
software. Refer to Table 28: SMPS modes summary.
3.6
V
V15SMPS
SMPS output voltage
Range 0
1.55
1.6
1.65
V
Range 1
1.45
1.5
1.55
Range 2
1.25
1.3
1.35
SR
SMPS output slew
rate
Fast startup disabled
SMPSFSTEN = 0
-600
-
µs/V
Fast startup enabled
SMPSFSTEN = 1
-120
-



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