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TPS65921 Datasheet(PDF) 6 Page - Texas Instruments

Part # TPS65921
Description  TPS65921 Power Management and USB Single Chip
PDF  70 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

TPS65921 Datasheet(HTML) 6 Page - Texas Instruments

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TPS65921
SWCS048G – MARCH 2010 – REVISED SEPTEMBER 2014
www.ti.com
3.1
Signal Descriptions
Table 3-1. Signal Descriptions
NAME
BALL
SUPPLIES
TYPE
I/O
DESCRIPTION
PU/PD
ADCIN0
F2
Analog
I/O
General-purpose ADC input
NO
ADC conversion
STARTADC
H7
VDDIO/DGND
Digital
I
request/JTAG test data
NO
input
I2C.CNTL.SDA
C4
VDDIO/DGND
Digital
I/O
I2C bidirectional data signal
External PU
I2C bidirectional clock
I2C.CNTL.SCL
B3
VDDIO/DGND
Digital
I/O
External PU
signal
HS I2C bidirectional data
I2C.SR.SDA
D4
VDDIO/DGND
Digital
I/O
External PU
signal
HS I2C bidirectional Clock
I2C.SR.SCL
A3
VDDIO/DGND
Digital
I/O
External PU
signal
Input detects a control
PWRON
D5
VBAT/GND
Digital
I
command to start or stop
External PU
the system.
Enable signal for external
REGEN
G3
Digital
O
PU
LDO
Security and digital rights
MSECURE
G8
VDDIO/DGND
Digital
I
NO
management
Programmable
Power-up sequence
BOOT0
E5
VBAT/GND
Digital
I
PD (default
selection
active)
Programmable
Power-up sequence
BOOT1
F6
VBAT/GND
Digital
I
PD (default
selection
active)
Output control the
NRESPWRON
E7
VDDIO/DGND
Digital
O
NRESPWRON of the
NO
application processor
NRESWARM
H8
VDDIO/DGND
Digital
I
Warm reset signal
PU
ACTIVE-SLEEP state
NSLEEP1
K4
VDDIO/DGND
Digital
I
NO
transition control signal
INT1
A9
VDDIO/DGND
Digital
O
Output line interrupt
NO
SYSEN
B9
VDDIO/DGND
Digital
O
System enable output
NO
CLKEN
F10
VDDIO/DGND
Digital
O
Clock Enable
NO
PD disabled in
32KCLKOUT
G6
VDDIO/DGND
Digital
O
32-kHz clock output
ACTIVE state
32KXOUT
G11
VRTC/REFGND
Analog
I
32-kHz crystal oscillator
NO
32KXIN
H11
VRTC/REFGND
Analog
I
32-kHz crystal oscillator
NO
Sine wave or square wave
HFCLKIN
C8
VDDIO/DGND
Analog
I
NO
input
50% duty cycle square
HFCLKOUT
K8
VDDIO/DGND
Digital
O
NO
wave output
VREF
G10
VREF/REFGND
Analog
O
Bandgap voltage
NO
GND_AGND
K7
AGND
Analog
I/O
Substrate ground
NO
AGND
H10
REFGND
Analog
I/O
Reference ground
NO
DGND
B8
DGND
Power
I/O
Digital ground
NO
Supply for I/O buffers
IO.1P8
A10
Power
I
NO
(VDDIO)
Not used. Must be
BKBAT
G9
VBACKUP/AGND
Power
I
NO
grounded
VDD1.IN
E9, E10, E11
Power
I
VDD1 DC-DC input
NO
A11, B10,
VDD1 DC-DC power
VDD1.GND
Power
I/O
NO
B11
ground
6
Terminal Configuration and Functions
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