sx1511iultrt Semtech Corporation, sx1511iultrt Datasheet - Page 13

• Manufacturer Part Number: sx1511iultrt
• Description: World
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
4
4.1
4.2
Rev 1 – 24
B
SX1510 4-channel SPI GPIO with LED Driver
SX1511 8-channel SPI GPIO with LED Driver and Keypad Engine
LOCK
th
Feb. 2010
D
ETAILED
NRESET
NRESET
VDDM
VDDM
Figure 5 – 8-channel Low Voltage GPIO with LED Driver and Keypad Engine
NSS
SCK
NSS
SCK
SO
SO
SI
SI
D
ESCRIPTION
Figure 4 – 4-channel Low Voltage GPIO with LED Driver
16 Keys Max
Keypad
Engine
Reset
Reset
SX1511
SX1510
Clock Mgmt
Clock Mgmt
SPI Bus
SPI Bus
Control
Control
Oscillator
Oscillator
External
OSCIO
External
OSCIO
Internal
Internal
Clock
GND
GND
Clock
13
4-Bit
8-Bit
R/W
R/W
World’s Lowest Voltage Level Shifting GPIO
Intensity (PWM)
Intensity (PWM)
LED Driver
Breath (Ramp)
I/O Bank A
A
LED Driver
Breath (Ramp)
I/O Bank A
A
I/O Bank B
A
Blink (Timer)
Blink (Timer)
Interrupt
Interrupt
with LED Driver and Keypad Engine
SX1510/SX1511/SX1512
VCC1
I/O[0]
I/O[1]
VCC2
I/O[4]
I/O[5]
I/O[6]
I/O[7]
NINT
VCC1
I/O[0]
I/O[1]
I/O[2]
I/O[3]
NINT
I/O[2]
I/O[3]
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