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SX1512BIULTRT Datasheet(PDF) 4 Page - Semtech Corporation

Part No. SX1512BIULTRT
Description  World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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SX1512BIULTRT Datasheet(HTML) 4 Page - Semtech Corporation

 
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ADVANCED COMMUNICATIONS & SENSING
Rev 4 – 26
th April 2011
4
www.semtech.com
SX1511B/SX1512B
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
1
PIN DESCRIPTION
1.1
SX1511B 8-channel SPI GPIO with LED Driver and Keypad Engine
Pin
Symbol
Type
Description
1
NRESET
DI
Active low reset input
2
SO
DO
SPI data output (HZ when not used)
3
SCK
DI
SPI clock input
4
SI
DI
SPI data input
5
I/O[0]
DIO
(*1)
I/O[0], at power-on configured as an input
LED driver : Intensity control (PWM)
6
I/O[1]
DIO
(*1)
I/O[1], at power-on configured as an input
LED driver : Intensity control (PWM)
7
VCC1
P
Supply voltage for Bank A I/O[3-0]
8
GND
P
Ground Pin
9
I/O[2]
DIO
(*1)
I/O[2], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking
10
I/O[3]
DIO
(*1)
I/O[3], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)
11
NINT
DO
Active low interrupt output
12
NSS
DI
SPI slave select input (active low)
13
OSCIO
DIO
(*1)
Oscillator input/output, can also be used as GPO
14
VDDM
P
Main supply voltage
15
I/O[4]
DIO
(*1)
I/O[4], at power-on configured as an input
LED driver : Intensity control (PWM)
16
I/O[5]
DIO
(*1)
I/O[5], at power-on configured as an input
LED driver : Intensity control (PWM)
17
VCC2
P
Supply voltage for Bank B I/O[7-4]
18
GND
P
Ground Pin
19
I/O[6]
DIO
(*1)
I/O[6], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking
20
I/O[7]
DIO
(*1)
I/O[7], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)
D/I/O/P: Digital/Input/Output/Power
(*1) This pin is programmable through the SPI interface
Table 1 – SX1511B Pin Description
Figure 1 – SX1511B QFN-UT-20 Pinout
NRESET
SO
SCK
SI
I/O[0]
I/O[4]
VDDM
OSCIO
NSS
NINT
GND
(PAD)


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