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參數(shù)資料
| 型號(hào)： | PCA9672D,518 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 32/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16SOIC |
| 產(chǎn)品培訓(xùn)模塊： | LED Controllers I²C Bus Fundamentals |
| 特色產(chǎn)品： | NXP - I2C Interface |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 8 |
| 中斷輸出： | 是 |
| 頻率 - 時(shí)鐘： | 1MHz |
| 電源電壓： | 2.3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SO |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 包括： | POR |
| 產(chǎn)品目錄頁面： | 826 (CN2011-ZH PDF) |
| 其它名稱： | 568-4195-6 |
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PCA9672
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 3 — 27 May 2013
5 of 36
NXP Semiconductors
PCA9672
Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset
[1]
HVQFN16 package die supply ground is connected to both the VSS pin and the exposed center pad. The
VSS pin 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 PCB in the thermal pad region.
7.
Functional description
Refer to Figure 1 “Block diagram of PCA9672”.
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 format of the
PCA9672 is shown in Figure 6. Slave address pins AD1 and AD0 are used to choose one
of 16 slave addresses. These devices can monitor the change in SDA or SCL in addition
to the static levels of VDD or VSS to decode four states allowing a larger address range. To
conserve power, no internal pull-up resistors are incorporated on AD1 or AD0, so they
must be externally connected to VDD, VSS directly or through resistors, or to SCL or SDA
directly. Address values depending on AD1 and AD0 can be found in Table 4 “PCA9672
Remark: When using the PCA9672 reserved I2C-bus addresses must be used with
caution since they can interfere with:
“reserved for future use” I2C-bus addresses (0000 011, 1111 101, 1111 110, 1111 111)
slave devices that use the 10-bit addressing scheme (1111 0xx)
High speed mode (Hs-mode) master code (0000 1xx)
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.
When AD1 and AD0 are held to VDD or VSS, the same address as the PCF8574 or the
newer PCA8574 with A2 held to VSS is applied.
P7
12
10
quasi-bidirectional I/O 7
INT
13
11
interrupt output (active LOW)
SCL
14
12
serial clock line
SDA
15
13
serial data line
VDD
16
14
supply voltage
Table 3.
Pin description …continued
Symbol
Pin
Description
SO16, TSSOP16
HVQFN16
Fig 6.
PCA9672 address
R/W
002aab636
A6
A5
A4
A3
A2
A1
A0
programmable
slave address
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9672D-T | 功能描述:接口-I/O擴(kuò)展器 8BIT I2C FM+ QB GPIO INT-RS PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9672PW | 功能描述:接口-I/O擴(kuò)展器 8BIT I2C FM+ QB GPIO INT-RS PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9672PW,112 | 功能描述:接口-I/O擴(kuò)展器 8BIT I2C FM+ QB GPIO RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9672PW,118 | 功能描述:接口-I/O擴(kuò)展器 8BIT I2C FM+ QB GPIO INT-RS PU RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| PCA9672PW112 | 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: |
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