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STW4510 データシート(PDF) 8 Page - STMicroelectronics

部品番号 STW4510
部品情報  2 step-down DC/DC converters / 5 LDO power management
PDF  57 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STW4510 データシート(HTML) 8 Page - STMicroelectronics

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Ball information
STw4510
8/57
2.3
Ball functions
STw4510 includes the following ball types
●
VDDD/VDDA: Digital/analog power supply
●
VSSD/VSSA: Digital/analog ground supply
●
DO/DI/DIO: Digital Output / Digital Input / Digital Input-Output
●
DOz: Digital Output with high impedance capability
●
AO/AI/AIO: Analog Output / Analog Input / Analog Input-Output
●
G: To be connected to ground
●
O: To be left open
2.3.1
Signal description for the TFBGA84 6 mm x 6 mm package
Table 3.
STw4510 ball description for the 6 mm x 6 mm package
Ball
Ball name
Ball type
Description
General supply balls
D1
Vbat_osc
VDDD
Battery supply for digital/oscillator
C3
Gnd_osc
VSSD
Internal ground oscillator
C6
Vbat_ana
VDDA
Analog part battery supply
B5
Gnd_ana
VSSA
Analog ground
A9
Vref_18
AO
Internal reference
G10
VddIO
VDDD
IO digital supply
G8, J9
Gnd_IO
VSSD
IO ground
Digital control balls
C8
Pon
DI (Nmos)
Pull Down 1.5M
Ω
Power-on and reset
K4
Sw_resetn
DI Vddio voltage
Pull up 1.5M
Ω
Software reset, reset all application, when
Sw_resetn = 0
J2
VddOK
DO Vddio voltage
Supply monitoring for processor. Interruption
for high temperature warning
J3
Res_pro
DO Vddio voltage
Reset for processor
H6
Pwren
DI Vddio voltage
Pull up 1.5M
Ω
Sleep mode from main processor
J6
SCL
DI Vddio voltage
I2C clock interface
H7
SDA
DIO Vddio voltage I2C data interface
A1
Clk32k_in
DI Vddio voltage
Pull Down 1.5M
Ω
32 kHz clock input
Step down DC/DC converters & voltage regulators
A4, B4
Vbat_Vsdc2
VDDA
Vsdc2 Step Down DC/DC input power supply
converter
A2, B3
Gnd_Vsdc2
VSSA
Vsdc2 Step Down DC/DC ground converter



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