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參數(shù)資料
| 型號(hào)： | PCA9674A |
| 廠(chǎng)商： | NXP Semiconductors N.V. |
| 英文描述： | Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt |
| 中文描述： | 遠(yuǎn)程8位I / O擴(kuò)展調(diào)頻I2C總線(xiàn)的中斷 |
| 文件頁(yè)數(shù)： | 1/34頁(yè) |
| 文件大小： | 179K |
| 代理商： | PCA9674A |
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1.
General description
The PCA9674/74A provide general purpose remote I/O expansion for most
microcontroller families via the two-line bidirectional bus (I
2
C-bus) and is a part of the
Fast-mode Plus (Fm+) family.
The PCA9674/74A is a drop-in upgrade for the PCF8574/74A providing higher Fast-mode
Plus I
2
C-bus speeds (1 MHz versus 400 kHz) so that the output can support PWM
dimming of LEDs, higher I
2
C-bus drive (30 mA versus 3 mA) so that many more devices
can be on the bus without the need for bus buffers, higher total package sink capacity
(200 mA versus 100 mA) that supports having all LEDs on at the same time and more
device addresses (64 versus 8) are available to allow many more devices on the bus
without address conflicts.
The devices consist of an 8-bit quasi-bidirectional port and an I
2
C-bus interface. The
PCA9674/74A have low current consumption and include latched outputs with 25 mA high
current drive capability for directly driving LEDs.
They also possess an interrupt line (INT) that can be connected to the interrupt logic of
the microcontroller. By sending an interrupt signal on this line, the remote I/O can inform
the microcontroller if there is incoming data on its ports without having to communicate via
the I
2
C-bus.
The internal Power-On Reset (POR) or Software Reset sequence initializes the I/Os as
inputs.
2.
Features
I
1 MHz I
2
C-bus interface
I
Compliant with the I
2
C-bus Fast and Standard modes
I
SDA with 30 mA sink capability for 4000 pF buses
I
2.3 V to 5.5 V operation with 5.5 V tolerant I/Os
I
8-bit remote I/O pins that default to inputs at power-up
I
Latched outputs with 25 mA sink capability for directly driving LEDs
I
Total package sink capability of 200 mA
I
Active LOW open-drain interrupt output
I
64 programmable slave addresses using 3 address pins
I
Readable device ID (manufacturer, device type, and revision)
I
Low standby current
I
40
°
C to +85
°
C operation
I
ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per
JESD22-A115, and 1000 V CDM per JESD22-C101
PCA9674/74A
Remote 8-bit I/O expander for Fm+ I
2
C-bus with interrupt
Rev. 02 — 12 October 2006
Product data sheet
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9675 | Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt |
| PCA9675DB | Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt |
| PCA9675DK | Remote 16-bit I/O expander for Fm+ I2C-bus with interrupt |
| PCA9698 | 40-bit Fm+ I2C-bus advanced I/O port with RESET, OE and INT |
| PCADADIO-CS | PC(ISA)BUS I/O CARD |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9674ABS,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 |
| PCA9674ABS,118-CUT TAPE | 制造商:NXP 功能描述:PCA9674 Series 1 MHz 8 bit I/O Expander Fm + I2C Bus with Interrupt - HVQFN-16 |
| PCA9674ABS-T | 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 |
| PCA9674AD | 功能描述:接口-I/O擴(kuò)展器 8-BIT I2C FM+ QB GPIO INT 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 |
| PCA9674AD,512 | 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 |
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