參數(shù)資料
型號： PCA9673DB
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset
中文描述： 18 I/O, PIA-GENERAL PURPOSE, PDSO24
封裝： 5.30 MM, PLASTIC, MO-150, SOT340-1, SSOP-24
文件頁數(shù)： 9/33頁
文件大小： 185K
代理商： PCA9673DB
PCA9673_1
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 01 — 1 February 2007
9 of 33
NXP Semiconductors
PCA9673
Remote 16-bit I/O expander for Fm+ I
2
C-bus with interrupt and reset
3 bits with the die revision, assigned by manufacturer (for example, Rev X).
The Device ID is read-only, hardwired in the device and can be accessed as follows:
1. START command
2. The master sends the Reserved Device ID I
2
C-bus address ‘1111 100’ with the R/W
bit set to 0 (write).
3. The master sends the I
2
C-bus slave address of the slave device it needs to identify.
The LSB is a ‘Don’t care’ value. Only one device must acknowledge this byte (the one
that has the I
2
C-bus slave address).
4. The master sends a Re-START command.
Remark:
A STOP command followed by a START command will reset the slave state
machine and the Device ID read cannot be performed.
Remark:
A STOP command or a Re-START command followed by an access to
another slave device will reset the slave state machine and the Device ID read cannot
be performed.
5. The master sends the Reserved Device ID I
2
C-bus address ‘1111 100’ with the R/W
bit set to 1 (read).
6. The device ID read can be done, starting with the 8 manufacturer bits (first byte +
4 MSB of the second byte), followed by the 13 part identification bits and then the
3 die revision bits (3 LSB of the third byte).
7. The master ends the reading sequence by NACKing the last byte, thus resetting the
slave device state machine and allowing the master to send the STOP command.
Remark:
The reading of the Device ID can be stopped anytime by sending a NACK
command.
Remark:
If the master continues to ACK the bytes after the third byte, the PCA9673
rolls back to the first byte and keeps sending the Device ID sequence until a NACK
has been detected.
For the PCA9673, the Device ID is as shown in
Figure 13
.
Fig 13. PCA9673 ID
0
002aac333
0
0
revision
0
0
1
0
0
0
1
0
0
part identification
0
0
0
0
0
0
0
0
0
0
0
0
manufacturer
category identification
feature identification
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9673DB,112 功能描述:接口-I/O擴展器 16BIT I2C FM+ QBGPIO 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
PCA9673DB,118 功能描述:接口-I/O擴展器 16BIT I2C FM+ QBGPIO 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
PCA9673DB-T 功能描述:接口-I/O擴展器 16BIT I2C FM+ QBGPIO 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
PCA9673DK,118 功能描述:接口-I/O擴展器 16BIT I2C FM+ QBGPIO 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
PCA9673DK-T 功能描述:接口-I/O擴展器 16BIT I2C FM+ QBGPIO 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
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