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参数资料
| 型号： | PCA9575PW1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 38/38页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24TSSOP |
| 标准包装： | 1 |
| 接口： | I²C，SM 总线 |
| 输入/输出数： | 16 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 1.1 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 标准包装 |
| 包括： | POR |
| 其它名称： | 568-9538-6 |
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PCA9575_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 9 November 2009
9 of 38
NXP Semiconductors
PCA9575
16-bit I2C-bus and SMBus, level translating, low voltage GPIO
7.3 Command register
Following the successful acknowledgement of the slave address + R/W bit, the bus master
will send a byte to the PCA9575, which will be stored in the Command register.
The lowest 4 bits are used as a pointer to determine which register will be accessed. Only
a Command register code with the 4 least signicant bits equal to the 16 allowable values
as dened in Table 3 “Register summary” will be acknowledged. Reserved or undened
command codes will not be acknowledged. At power-up, this register defaults to 00h, with
the AI bit set to logic 0, and the lowest 4 bits set to logic 0.
If the Auto-Increment ag is set (AI = 1), the 4 least signicant bits of the Command
register are automatically incremented after a read or write. This allows the user to
program and/or read the 16 command registers (listed in Table 3) sequentially. It will then
roll over to register 00h after the last register is accessed and the selected registers will be
overwritten or re-read.
If the Auto-Increment ag is cleared (AI = 0), the 4 least signicant bits are not
incremented after data is read or written, only one register will be repeatedly read or
written.
7.4 Register denitions
Reset state = 00h
Remark: The Command register does not apply to Software Reset I2C-bus address.
Fig 8.
Command register
002aad568
AI
0
D3
D2
D1
D0
register address
Auto-Increment flag
Table 3.
Register summary
Register number
D3
D2
D1
D0
Name
Type
Function
00h
0
IN0
read only
Input port 0 register
01h
0
1
IN1
read only
Input port 1 register
02h
0
1
0
INVRT0
read/write
Polarity inversion port 0 register
03h
0
1
INVRT1
read/write
Polarity inversion port 1 register
04h
0
1
0
BKEN0
read/write
Bus-hold enable 0 register
05h
0
1
0
1
BKEN1
read/write
Bus-hold enable 1 register
06h
0
1
0
PUPD0
read/write
Pull-up/pull-down selector port 0 register
07h
0
1
PUPD1
read/write
Pull-up/pull-down selector port 1 register
08h
1
0
CFG0
read/write
Conguration port 0 register
09h
1
0
1
CFG1
read/write
Conguration port 1 register
0Ah
1
0
1
0
OUT0
read/write
Output port 0 register
0Bh
1
0
1
OUT1
read/write
Output port 1 register
0Ch
1
0
MSK0
read/write
Interrupt mask port 0 register
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相关代理商/技术参数 |
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|---|---|
| PCA9575PW2,118 | 功能描述:I2C 接口集成电路 I2C Bus/ SMBus Level Translating 28-Pin RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| PCA9575PW2118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| PCA9600D | 功能描述:缓冲器和线路驱动器 FM+ BUS BUFFER RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| PCA9600D,112 | 功能描述:缓冲器和线路驱动器 FM+ BUS BUFFER RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| PCA9600D,118 | 功能描述:缓冲器和线路驱动器 FM+ BUS BUFFER RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
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