參數(shù)資料
型號： PCA9674AN
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
中文描述： 8 I/O, PIA-GENERAL PURPOSE, PDIP16
封裝： 0.300 INCH, PLASTIC, MO-001, SOT38-1, DIP-16
文件頁數(shù)： 6/34頁
文件大?。?/td> 179K
代理商： PCA9674AN
PCA9674_PCA9674A_2
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 12 October 2006
6 of 34
NXP Semiconductors
PCA9674/74A
Remote 8-bit I/O expander for Fm+ I
2
C-bus with interrupt
[1]
HVQFN package die supply ground is connected to both the V
SS
pin and the exposed center pad. The V
SS
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 PCA9674/74A”
.
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
PCA9674/74A is shown in
Figure 8
. Slave address pins AD2, AD1, and AD0 choose 1 of
64 slave addresses. To conserve power, no internal pull-up resistors are incorporated on
AD2, AD1, and AD0. Address values depending on AD2, AD1, and AD0 can be found in
Table 5 “PCA9674 address map”
and
Table 6 “PCA9674A address map”
.
Remark:
When using the PCA9674A, 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 PCA9674A not to acknowledge.
Remark:
When using the PCA9674 or the PCA9674A, reserved I
2
C-bus addresses must
be used with caution since they can interfere with:
“reserved for future use” I
2
C-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)
Table 4.
Symbol
AD2
P0
P1
P2
P3
V
SS
[1]
P4
P5
P6
P7
INT
SCL
SDA
V
DD
AD0
AD1
Pin description for HVQFN16
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Description
address input 2
quasi-bidirectional I/O 0
quasi-bidirectional I/O 1
quasi-bidirectional I/O 2
quasi-bidirectional I/O 3
supply ground
quasi-bidirectional I/O 4
quasi-bidirectional I/O 5
quasi-bidirectional I/O 6
quasi-bidirectional I/O 7
interrupt output (active LOW)
serial clock line
serial data line
supply voltage
address input 0
address input 1
相關(guān)PDF資料
PDF描述
PCA9674ATS Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674N Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674TS Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674 Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
PCA9674A Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9674AN,112 功能描述:接口-I/O擴(kuò)展器 8-BIT I2C FM+ QB 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
PCA9674APW 功能描述:接口-I/O擴(kuò)展器 8-BIT I2C FM+ QB GPIO RST 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
PCA9674APW,112 功能描述:接口-I/O擴(kuò)展器 8-BIT I2C FM+ QB 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
PCA9674APW,118 功能描述:接口-I/O擴(kuò)展器 8-BIT I2C FM+ QB 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
PCA9674APW,118-CUT TAPE 制造商:NXP 功能描述:PCA9674 Series 5.5 V ?00 mA Remote 8 bit I/O Expander Fm+I2C bus - TSSOP-16
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