SX1512BIULTRT Semtech, SX1512BIULTRT Datasheet - Page 13

• Manufacturer Part Number: SX1512BIULTRT
• Description: 16-chan GPIO With Independent I/O Voltages (SPI)
• Manufacturer: Semtech

ADVANCED COMMUNICATIONS & SENSING
4
4.1
4.2
Rev 3 – 9
B
SX1510B 4-channel SPI GPIO with LED Driver
SX1511B 8-channel SPI GPIO with LED Driver and Keypad Engine
LOCK
th
Sept. 2010
D
ETAILED
NRESET
NRESET
VDDM
VDDM
Figure 6 – 8-channel Low Voltage GPIO with LED Driver and Keypad Engine
NSS
SCK
NSS
SCK
SO
SO
SI
SI
D
ESCRIPTION
Figure 5 – 4-channel Low Voltage GPIO with LED Driver
16 Keys Max
Keypad
Engine
Reset
Reset
SX1511B
SX1510B
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
SX1510B/SX1511B/SX1512B
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
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]
www.semtech.com