参数资料
| 型号： | SX1508IULTRT |
| 厂商： | Semtech |
| 文件页数： | 12/41页 |
| 文件大小： | 0K |
| 描述： | IC GPIO EXPANDER I2C 8CH 20QFN |
| 特色产品： | SX1508/SX1509 GPIO Expanders |
| 标准包装： | 1 |
| 接口： | I²C |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 1.2 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-QFN-UT（3x3） |
| 包装： | 标准包装 |
| 包括： | LED 驱动器 / 小键盘引擎 |
| 其它名称： | SX1508IULDKR |
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ADVANCED COMMUNICATIONS & SENSING
Rev 1 – 30
th Oct. 2009
2
www.semtech.com
SX1507/SX1508/SX1509
World’s Lowest Voltage Level Shifting GPIO
with LED Driver and Keypad Engine
Table of Contents
GENERAL DESCRIPTION ..................................................................................................................... 1
ORDERING INFORMATION................................................................................................................... 1
KEY PRODUCT FEATURES.................................................................................................................. 1
TYPICAL APPLICATIONS ..................................................................................................................... 1
1
PIN DESCRIPTION ...................................................................................................................... 4
1.1
SX1507 4-channel I
2C GPIO with LED Driver
4
1.2
SX1508 8-channel I
2C GPIO with LED Driver and Keypad Engine
5
1.3
SX1509 16-channel I
2C GPIO with LED Driver and Keypad Engine
6
1.4
I/Os Feature Summary
7
2
ELECTRICAL CHARACTERISTICS............................................................................................... 8
2.1
Absolute Maximum Ratings
8
2.2
Electrical Specifications
8
3
TYPICAL OPERATING CHARACTERISTICS ............................................................................... 11
4
BLOCK DETAILED DESCRIPTION ............................................................................................. 12
4.1
SX1507 4-channel I
2C GPIO with LED Driver
12
4.2
SX1508 8-channel I
2C GPIO with LED Driver and Keypad Engine
12
4.3
SX1509 16-channel I
2C GPIO with LED Driver and Keypad Engine
13
4.4
Reset
13
4.4.1
Hardware (NRESET)
13
4.4.2
Software (RegReset)
14
4.5
2-Wire Interface (I
2C)
14
4.5.1
WRITE
14
4.5.2
READ
15
4.6
I/O Banks
15
4.6.1
Input Debouncer
15
4.6.2
Keypad Scanning Engine
16
4.6.3
Level Shifter
16
4.6.4
Polarity Inverter
18
4.7
Interrupt (NINT)
18
4.8
Clock Management
18
4.9
LED Driver
18
4.9.1
Overview
18
4.9.2
Static Mode
19
4.9.3
Single Shot Mode
20
4.9.4
Blink Mode
20
4.9.5
LED Driver Modes
20
4.9.6
Synchronization of LED Drivers across several ICs
21
4.9.7
Tutorial
22
5
CONFIGURATION REGISTERS.................................................................................................. 23
5.1
SX1507 4-channel GPIO with LED Driver
23
5.2
SX1508 8-channel GPIO with LED Driver and Keypad Engine
26
5.3
SX1509 16-channel GPIO with LED Driver and Keypad Engine
30
6
APPLICATION INFORMATION ................................................................................................... 36
6.1
Typical Application Circuit
36
6.2
Typical LED Connection
36
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SX1508QB | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine |
| SX1508QBIULTRT | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine |
| SX1509BEVK | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine |
| SX1509BIULTRT | 制造商:Semtech Corporation 功能描述: 制造商:Semtech Corporation 功能描述:IC GPIO EXPANDER I2C 16CH 28QFN 制造商:Semtech Corporation 功能描述:Low Voltage Level Shifting GPIO with LED Driver and Keypad Engine 制造商:Semtech Corporation 功能描述:16 CHAN LOW VOLT I2C GPIO +PWM |
| SX1509BULTRT | 功能描述:IC GPIO EXPANDER I2C 16CH 28QFN RoHS:是 类别:集成电路 (IC) >> 接口 - I/O 扩展器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 接口:I²C，JTAG 输入/输出数:9 中断输出:无 频率 - 时钟:400kHz 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 包括:EEPROM |
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