|
|
PDF SX1507 Data sheet ( Hoja de datos )
| Número de pieza | SX1507 | |
| Descripción | Lowest Voltage Level Shifting GPIO | |
| Fabricantes | Semtech Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SX1507 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
ADVANCED COMMUNICATIONS & SENSING
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine
GENERAL DESCRIPTION
The SX1507, SX1508 and SX1509 are complete ultra
low voltage 1.2V to 3.6V General Purpose parallel
Input/Output (GPIO) expanders ideal for low power
handheld battery powered equipment. This family of
GPIOs comes in 4-, 8-, 16-channel configuration and
allows easy serial expansion of I/O through a
standard 400kHz I2C interface. GPIO devices can
provide additional control and monitoring when the
microcontroller or chipset has insufficient I/O ports, or
in systems where serial communication and control
from a remote location is advantageous.
These devices can also act as a level shifter to
connect a microcontroller running at one voltage level
to a component running at a different voltage level,
thus eliminating the need for extra level translating
circuits. The core is operating as low as 1.425V while
the dual I/O banks can operate between 1.2V and
3.6V independent of the core voltage and each other
(5.5V tolerant).
The SX1507, SX1508 and SX1509 feature a fully
programmable LED Driver with internal oscillator for
enhanced lighting control such as intensity (via 256-
step PWM), blinking and breathing (fade in/out) make
them highly versatile for a wide range of LED
applications.
In addition, keypad application is also supported with
the on-chip scanning engine which enables
continuous keypad monitoring up to 64 keys without
any additional host interaction and further reduce the
bus activity.
The SX1507, SX1508 and SX1509 have the ability to
generate mask-programmable interrupts based on
falling/rising edge of any of its GPIO lines. A
dedicated pin indicates to a host controller that a
state change occurred in one or more of the lines.
Each GPIO is programmable via 8-bit configuration
registers such as data registers, direction registers,
pull-up/pull-down registers, interrupt mask registers
and interrupt registers. These I/O expanders come in
small footprint packages and are rated from -40°C t o
+85°C temperature range.
ORDERING INFORMATION
Part Number
SX1507XXX(1)
SX1508IULTRT
SX1509IULTRT
SX1508EVK
SX1509EVK
(1) Future product
I/O
Channels
4
8
16
8
16
Package
QFN-UT-14
QFN-UT-20
QFN-UT-28
Evaluation Kit
Evaluation Kit
KEY PRODUCT FEATURES
• 1.2V to 3.6V Low Operating Voltage with Dual
Independent I/O Rails (VCC1, VCC2)
Enable Direct Level Shifting Between I/O
Banks and Host Controller
• 5.5V Tolerant I/Os, Up to 15mA Output Sink on
All I/Os (No Total Sink Current Limit)
• Integrated LED Driver for Enhanced Lighting
Intensity Control (256-step PWM)
Blink Control (224 On/Off values)
Breathing Control (224 Fade In/Out values)
• On-Chip Keypad Scanning Engine
Support Up to 8x8 Matrix (64 Keys)
Configurable Input Debouncer
• 4/8/16 Channels of True Bi-directional Style I/O
Programmable Pull-up/Pull-down
Push/Pull or Open-drain outputs
Programmable Polarity
• Open Drain Active Low Interrupt Output (NINT)
Bit Maskable
Programmable Edge Sensitivity
• Built-in Clock Management (Internal 2MHz
Oscillator/External Clock Input, 7 clock values)
OSCIO can be Configured as GPO
• 400kHz I2C Compatible Slave Interface
• 4 User-Selectable I²C Slave Addresses
• Power-On Reset and Reset Input (NRESET)
• Ultra Low Current Consumption of typ. 1uA
• -40°C to +85°C Operating Temperature Range
• 2kV HBM ESD Protection
• Small Footprint Packages
• Pb & Halogen Free, RoHS/WEEE compliant
TYPICAL APPLICATIONS
• Cell phones, PDAs, MP3 players
• Digital camera, Notebooks, GPS Units
• Any battery powered equipment
Rev 1 – 30th Oct. 2009
1
www.semtech.com
1 page  
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
ADVANCED COMMUNICATIONS & SENSING
1.2 SX1508 8-channel I2C GPIO with LED Driver and Keypad Engine
Pin Symbol Type Description
1 NRESET DIO Active low reset
2 SDA DIO I2C serial data line
3 SCL
DI I2C serial clock line
4 ADDR0
DI Address input bit 0, connect to VDDM or GND
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 ADDR1
DI Address input bit 1, connect to VDDM or GND
13 OSCIO
DIO 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 I2C interface
Table 2 – SX1508 Pin Description
NRESET
SDA
SCL
ADDR0
I/O[0]
GND
(PAD)
I/O[4]
VDDM
OSCIO
ADDR1
NINT
Figure 1 – SX1508 QFN-UT-20 Pinout
Rev 1 – 30th Oct. 2009
5
www.semtech.com
5 Page 
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
ADVANCED COMMUNICATIONS & SENSING
3 TYPICAL OPERATING CHARACTERISTICS
SX1509 IDDM vs.Temperature (VDDM = 3.6V, Oscillator Enabled)
370
365
360
355
350
345
340
335
330
-50 -30 -10 10 30 50 70 90
Temp (oC)
Fosc vs.Temperature (VDDM = 3.6V)
SX1509 IDDM vs.VDDM (Oscillator Enabled)
360
340
320
300
280
260
240
220
200
180
160
140
120
100
1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
VDDM (V)
Fosc vs. VDDM
2.5
2.3
2.1
1.9
1.7
1.5
1.3
-50 -30 -10 10 30 50 70 90
Temp (oC)
2.5
2.3
2.1
1.9
1.7
1.5
1.3
1.3 1.5 1.7 1.9 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5
VDDM (V)
VOL vs. IOL (VCCx = 3.6V, Temp 25C)
0.3
0.25
0.2
0.15
0.1
0.05
0
0 2 4 6 8 10 12 14
IOL (mA)
VOL vs.Temperature (VCCx = 3.6V, IOL = 15mA)
0.3
0.25
0.2
0.15
0.1
0.05
0
-50 -30 -10 10 30 50 70 90
Temp (oC)
VOH vs. IOH (VDDM = 3.6V, Temp 25C)
VOH vs. Temperature (VCCx = 3.6V, IOH = 8mA)
3.6
3.55
3.5
3.45
3.4
3.35
3.3
3.25
3.2
-8 -7 -6 -5 -4 -3 -2 -1 0
IOH (mA)
3.6
3.55
3.5
3.45
3.4
3.35
3.3
3.25
3.2
-50 -30 -10 10 30 50 70 90
Temp (oC)
Figure 3 – Typical Operating Characteristics
Rev 1 – 30th Oct. 2009
11
www.semtech.com
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SX1507.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SX150 | Pressure Sensor |  Sensym |
| SX1501 | 4 Channel Low Voltage GPIO | Semtech Corporation |
| SX1502 | 8 Channel Low Voltage GPIO | Semtech Corporation |
| SX1503 | 16 Channel Low Voltage GPIO | Semtech Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |