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| 型号： | PCA9505DGG,112 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 32/34页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 40B 56TSSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 35 |
| 接口： | I²C |
| 输入/输出数： | 40 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 56-TFSOP（0.240"，6.10mm 宽） |
| 供应商设备封装： | 56-TSSOP |
| 包装： | 管件 |
| 包括： | POR |
| 产品目录页面： | 824 (CN2011-ZH PDF) |
| 其它名称： | 568-4244-5 935284486112 PCA9505DGG |
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PCA9505_9506
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 4 — 3 August 2010
7 of 34
NXP Semiconductors
PCA9505/06
40-bit I2C-bus I/O port with RESET, OE and INT
[1]
HVQFN56 package die supply ground is connected to both VSS pins and exposed center pad. VSS pins
must be connected to supply ground for proper device operation. For enhanced thermal, electrical, and
board level performance, the exposed pad needs to be soldered to the board using a corresponding
thermal pad on the board and for proper heat conduction through the board, thermal vias need to be
incorporated in the printed-circuit board in the thermal pad region.
7.
Functional description
7.1 Device address
Following a START condition, the bus master must send the address of the slave it is
accessing and the operation it wants to perform (read or write). The address of the
PCA9505/06 is shown in Figure 5. Slave address pins A2, A1, and A0 choose 1 of 8 slave
addresses and need to be connected to VDD (1) or VSS (0). To conserve power, no internal
pull-up resistors are incorporated on A2, A1, and A0.
The last bit of the first byte defines the operation to be performed. When set to logic 1 a
read is selected, while a logic 0 selects a write operation.
7.2 Command register
Following the successful acknowledgement of the slave address + R/W bit, the bus
master will send a byte to the PCA9505/06, which will be stored in the Command register.
OE
30
23
I
active LOW output enable input
INT
55
48
O
active LOW interrupt output
RESET
56
49
I
active LOW reset input
Table 2.
Pin description …continued
Symbol
Pin
Type
Description
TSSOP56
HVQFN56
Fig 5.
PCA9505/06 address
002aab494
0
1
0
A2
A1
A0 R/W
fixed
slave address
programmable
Fig 6.
Command register
002aab495
1
0
AI
D5
D4
D3
D2
D1
D0
Auto-Increment
register number
default at power-up
or after RESET
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9506 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:40-bit I2C-bus I/O port with RESET, OE and INT |
| PCA9506BS | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:40-bit I2C-bus I/O port with RESET, OE and INT |
| PCA9506BS,118 | 功能描述:接口-I/O扩展器 I/O EXPANDER I2C 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 |
| PCA9506BS,118-CUT TAPE | 制造商:NXP 功能描述:PCA9506 Series 40-Bit I2C-Bus I/O Port with RESET OE and INT - HVQFN - 56 |
| PCA9506DGG | 功能描述:接口-I/O扩展器 I/O EXPANDER I2C 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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