sx1508bevk Semtech Corporation, sx1508bevk Datasheet - Page 5

• Manufacturer Part Number: sx1508bevk
• Manufacturer: Semtech Corporation

ADVANCED COMMUNICATIONS & SENSING
1.2
Rev 3 – 9
SX1508B 8-channel I
D/I/O/P: Digital/Input/Output/Power
(*1)
th
This pin is programmable through the I
Sept. 2010
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
Symbol
NRESET
ADDR0
ADDR1
OSCIO
VDDM
VCC1
VCC2
I/O[0]
I/O[1]
I/O[2]
I/O[3]
NINT
I/O[4]
I/O[5]
I/O[6]
I/O[7]
GND
GND
SDA
SCL
2
C GPIO with LED Driver and Keypad Engine
NRESET
DIO
Type
ADDR0
DIO
DIO
DIO
DIO
DIO
DIO
DIO
DIO
DIO
DO
DI
DI
DI
DI
I/O[0]
P
P
P
P
P
SDA
SCL
(*1)
Figure 2 – SX1508B QFN-UT-20 Pinout
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
Table 2 – SX1508B Pin Description
Description
Active low reset input
I
I
Address input bit 0, connect to VDDM or GND
I/O[0], at power-on configured as an input
LED driver : Intensity control (PWM)
I/O[1], at power-on configured as an input
LED driver : Intensity control (PWM)
Supply voltage for Bank A I/O[3-0]
Ground Pin
I/O[2], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking
I/O[3], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)
Active low interrupt output
Address input bit 1, connect to VDDM or GND
Oscillator input/output, can also be used as GPO
Main supply voltage
I/O[4], at power-on configured as an input
LED driver : Intensity control (PWM)
I/O[5], at power-on configured as an input
LED driver : Intensity control (PWM)
Supply voltage for Bank B I/O[7-4]
Ground Pin
I/O[6], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking
I/O[7], at power-on configured as an input
LED driver : Intensity control (PWM), Blinking, Breathing (Fade In/Out)
2
2
2
C interface
C serial data line
C serial clock line
(PAD)
GND
5
World’s Lowest Voltage Level Shifting GPIO
SX1507B/SX1508B/SX1509B
I/O[4]
VDDM
OSCIO
ADDR1
NINT
with LED Driver and Keypad Engine
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