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STLED325 Datasheet(PDF) 8 Page - STMicroelectronics

Part # STLED325
Description  Standby power management to host
PDF  62 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLED325 Datasheet(HTML) 8 Page - STMicroelectronics

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Functional and application diagram
STLED325
8/62
Doc ID 17576 Rev 1
2
Functional and application diagram
Figure 1.
Functional block diagram
AM04143V1
2
OSC
DisplayMem
(20 x 16)
Timing Gen
Key Scan &
Dimming
20- bit
Output
Latch
16- bit
Shift
Register
SPI
Seria
l I/F
KeyData Mem
(2 x 12)
KEY1-KEY2
8
5
(0V)
DIG4
Command
Decoder
SCL
2
OSC
(Fixed
Freq)
DisplayMem
(5 x 8)
Timing Gen
Key Scan &
Dimming
5- bit
Shift
Register
I2C
Serial
I/F
KeyData Mem
(2 x 8)
SEG1/KS1
Command
Decoder
POR &
Soft-start
Internal
reset
Current
source
ISET
Output
segments
DIG1
Remote Ctrl
Decoder &
Thermal
protection
SEG8/KS8
SDA
IRQ_N
Bandgap
and UVLO
RTC +
32KHz
Osc
XIN
XOUT
RC
decoder
IR_IN
STDBY
READY
GND
Voltage
regulator
Vcc
DIG5
Internal
core
supply
VBAT
WAKE_UP
GPIO1
GPIO2
VREG
MUTE
Guard
timer
VCC
Detect
Vbat
Detect
8-bit
output
latch
Power
management



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