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參數(shù)資料
| 型號： | PCA9673D,112 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 30/33頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24SOIC |
| 標(biāo)準(zhǔn)包裝： | 30 |
| 接口： | I²C |
| 輸入/輸出數(shù)： | 16 |
| 中斷輸出： | 是 |
| 頻率 - 時鐘： | 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： | 24-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 24-SO |
| 包裝： | 管件 |
| 包括： | POR |
| 其它名稱： | 935283555112 PCA9673D PCA9673D-ND |
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PCA9673
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 2 — 29 September 2011
6 of 33
NXP Semiconductors
PCA9673
Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt and reset
7.
Functional description
Refer to Figure 1 “Block diagram of PCA9673”.
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
PCA9673 is shown in Figure 7. Slave address pins AD1 and AD0 choose 1 of 16 slave
addresses. To conserve power, no internal pull-up resistors are incorporated on AD1 and
AD0. Address values depending on AD1 and AD0 can be found in Table 3 “PCA9673
Remark: The General Call address (0000 0000b) and the Device ID address
(1111 100Xb) are reserved and cannot be used as device address. Failure to follow this
requirement will cause the PCA9673 not to acknowledge.
Remark: 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 PCF8575 is applied.
7.1.1 Address maps
Fig 7.
PCA9673 address
R/W
002aab636
A6
A5
A4
A3
A2
A1
A0
programmable
slave address
Table 3.
PCA9673 address map
AD1
AD0
A6
A5
A4
A3
A2
A1
A0
Address (hex)
SCL
VSS
00
10
028h
SCL
VDD
00
10
12Ah
SDA
VSS
00
10
11
02Ch
SDA
VDD
00
10
11
12Eh
SCL
00
11
10
038h
SCL
SDA
00
11
10
13Ah
SDA
SCL
00
11
03Ch
SDA
00
11
13Eh
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9673DB | 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 |
| 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 |
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