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STM32H7B3AI 数据表(PDF) 97 Page - STMicroelectronics

部件名 STM32H7B3AI
功能描述  32-bit Arm® Cortex®-M7 280 MHz MCUs, 2-Mbyte flash memory, 1.4-Mbyte RAM, 46 com. and analog interfaces, SMPS, crypto
PDF  238 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STM32H7B3AI 数据表(HTML) 97 Page - STMicroelectronics

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 97 / 238 page
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Symbol
Parameter
Conditions
frcc_cpu_ck
(MHz)
Typ
LDO(1)
Typ
SMPS(1)
Max(1)(2)
Unit
TJ =
25 °C
TJ =
85 °C
TJ =
105 °C
TJ =
130 °C
IDD
Supply current in
Run mode
All peripherals
enabled
VOS1
160
mA
68.0
32.0
73
96
114
152
VOS2
160
60.5
26.5
64
82
97
127
88
41.0
18.0
45
62
77
107
VOS3
88
36.5
15.0
39
53
64
89
1. Guaranteed by characterization results, unless otherwise specified.
2. The maximum values are given for LDO regulator ON. Refer to Section 6.3.3 SMPS step-down converter for the SMPS maximum current
consumption.
Table 37. Typical consumption in Run mode and corresponding performance versus code position
Symbol
Parameter
Conditions
frcc_cpu_c k
(MHz)
Coremark
Typ
LDO
Typ
SMPS
Unit
LDO IDD/
Coremark
SMPS IDD/
Coremark
Unit
Peripheral
Code
IDD
Supply current
in Run mode
All peripherals
disabled,
cache ON
ITCM
280
1414
69.5
33.8
mA
49.2
23.9
µA/
Coremark
FLASH
280
1414
69.0
33.4
48.8
23.6
AXI
SRAM
280
1414
69.5
33.6
49.2
23.8
AHB
SRAM
280
1414
70.0
33.7
49.5
23.8
SRD
SRAM
280
1414
70.0
33.7
49.5
23.8
All peripherals
disabled cache
OFF
ITCM
280
1414
69.5
33.8
49.2
23.9
FLASH
280
668
56.0
28.0
83.8
41.9
AXI
SRAM
280
668
62.5
30.2
93.6
45.2
AHB
SRAM
280
295
59.5
28.8
201.7
97.6
SRD
SRAM
280
295
59.0
28.5
200.0
96.6
Table 38. Typical current consumption in Autonomous mode
Symbol
Parameter
Conditions(1)
frcc_hclk4 (AHB4) (MHz)
Typ
Unit
IDD
Supply current in Autonomous mode
Run, DStop mode
VOS3
64
2.98
mA
Run, DStop2 mode
VOS3
64
2.64
1. System in Run mode, CPU domain is DStop or DStop2 mode with memories of the CPU domain shut-off enable or disable.
STM32H7B3xI
Operating conditions
DS13139 - Rev 8
page 97/238



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