参数资料
| 型号： | XRA1404IL16-F |
| 厂商： | Exar Corporation |
| 文件页数： | 10/14页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER SPI 8B 16QFN |
| 标准包装： | 490 |
| 接口： | SPI |
| 输入/输出数： | 8 |
| 中断输出： | 是 |
| 频率 - 时钟： | 26MHz |
| 电源电压： | 1.65 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VFQFN 裸露焊盘 |
| 供应商设备封装： | 16-QFN（3x3） |
| 包装： | 散装 |
| 其它名称： | 1016-1726 |
XRA1404
5
REV. 1.0.0
8-BIT SPI GPIO EXPANDER WITH INTEGRATED LEVEL SHIFTERS
1.1.1
SPI Command Byte
An SPI command byte is sent by the SPI master following the slave address. The command byte indicates the
address offset of the register that will be accessed. Table 2 below lists the command bytes for each register.
TABLE 2: COMMAND BYTE (REGISTER ADDRESS)
COMMAND BYTE
REGISTER NAME DESCRIPTION
READ/WRITE
DEFAULT VALUES
0x00
GSR - GPIO State
Read-Only
0xXX
0x01
OCR - Output Control
Read/Write
0xFF
0x02
PIR - Input Polarity Inversion
Read/Write
0x00
0x03
GCR - GPIO Configuration
Read/Write
0xFF
0x04
PUR - Input Internal Pull-up Resistor Enable/Disable
Read/Write
0x00
0x05
IER - Input Interrupt Enable
Read/Write
0x00
0x06
TSCR - Output Three-State Control
Read/Write
0x00
0x07
ISR - Input Interrupt Status
Read
0x00
0x08
REIR - Input Rising Edge Interrupt Enable
Read/Write
0x00
0x09
FEIR - Input Falling Edge Interrupt Enable
Read/Write
0x00
0x0A
IFR - Input Filter Enable/Disable
Read/Write
0xFF
1.2
Interrupts
The table below summarizes the interrupt behavior of the different register settings for the XRA1404.
TABLE 3: INTERRUPT GENERATION AND CLEARING
BIT
INTERRUPT GENERATED BY:
INTERRUPT CLEARED BY:
1
0
X
No interrupts enabled (default)
N/A
1
0
A rising or falling edge on the input
Reading the GSR register or if the input
changes back to its previous state (state of
input during last read to GSR)
1
A rising or falling edge on the input and
remains in the new state for more than
1075ns
1
0
A rising edge on the input
Reading the GSR register
1
A rising edge on the input and remains high
for more than 1075ns
1
0
1
0
A falling edge on the input
Reading the GSR register
1
A falling edge on the input and remains low
for more than 1075ns
1
0
A rising or falling edge on the input
Reading the GSR register
1
A rising or falling edge on the input and
remains in the new state for more than
1075ns
0
x
No interrupts in output mode
N/A
GCR IER REIR FEIR IFR
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相关代理商/技术参数 |
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| XRA1404IL16MTR-F | 制造商:Exar Corporation 功能描述:XRA1404IL16MTR-F |
| XRA1404IL16TR-F | 功能描述:接口-I/O扩展器 8 Bit SPI GPIO Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| XRA1405IG24-0B-EB | 功能描述:其他开发工具 16 Bit SPI Eval GPIO Expander RoHS:否 制造商:Parallax 产品:ELEV-8 Hex Upgrade Kits 类型:Robotics 工具用于评估:ELEV-8 Quadcopter 工作电源电压: |
| XRA1405IG24-F | 功能描述:接口-I/O扩展器 16 Bit SPI GPIO Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| XRA1405IG24TR-F | 功能描述:接口-I/O扩展器 16 Bit SPI GPIO Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
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