PCA9557DB Integrated Circuits (ICs) |
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Allicdata Part #: | 296-33522-5-ND |
Manufacturer Part#: |
PCA9557DB |
Price: | $ 1.22 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC I/O EXPANDER I2C 8B 16SSOP |
More Detail: | I/O Expander 8 I²C, SMBus 400kHz 16-SSOP |
DataSheet: | PCA9557DB Datasheet/PDF |
Quantity: | 200 |
Lead Free Status / RoHS Status: | Lead free / RoHS Compliant |
Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
1 +: | $ 1.10250 |
10 +: | $ 0.98847 |
100 +: | $ 0.79443 |
500 +: | $ 0.65268 |
1000 +: | $ 0.54079 |
Series: | -- |
Packaging: | Tube |
Lead Free Status / RoHS Status: | -- |
Part Status: | Active |
Moisture Sensitivity Level (MSL): | -- |
Number of I/O: | 8 |
Interface: | I²C, SMBus |
Interrupt Output: | No |
Features: | POR |
Output Type: | Open Drain, Push-Pull |
Current - Output Source/Sink: | 10mA, 25mA |
Clock Frequency: | 400kHz |
Voltage - Supply: | 2.3 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 16-SSOP (0.209", 5.30mm Width) |
Supplier Device Package: | 16-SSOP |
Base Part Number: | PCA9557 |
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PCA9557DB is a device used to control various digital devices and provides an interface between a microcontroller/microprocessor and digital peripherals. PCA9557DB integrates four rows of toggle flip-flops, 16-bit configuration strobes, plus a counter. It also offers digital and analog expansion capabilities equivalent to several general-purpose I/O ports. PCA9557DB is a very versatile device, and can be used to form various kinds of interface modules, and has various applications, thus enabling users to easily implement their own designs with the help of the device.
Applications of PCA9557DB include in- and out-of-vehicle applications, medical systems, radio and TV remote controls, home appliance control, industrial control systems, security systems, portable and hand-held devices, etc. It can be used for controlling the operation of television sets, refrigerators, washing machines, mobile phones, security systems and other appliances. In addition, it can also be used for making simple home automation systems and for data acquisition purposes.
The working principle of PCA9557DB can be divided into two parts: counter and toggle flip-flops. The counter allows PCA9557DB to send data to the controller, while the toggle flip-flops record and store the data sent to them. The device also contains a 16 bit configuration strobes that allow a user to set the mode and clock cycle of the device. This helps in modifying the operation of the device according to the user’s requirements.
The PCA9557DB is an ideal device for I/O expansion, providing low cost and low power consumption. Since the device has built-in filter capacitors and other protection functions, it can also be used in harsh or high-temperature environments, reducing the cost and risk associated with external protection components.
PCA9557DB is available in a variety of packages, from small-sized surface-mountable packages to through-hole packages making it useable in virtually any application. It also provides wide operating temperature ranges, making it suitable for a variety of industrial applications, as well as automotive and other off-road applications.
In conclusion, PCA9557DB is an excellent device for I/O expansion. Not only does it provide a low-cost, low-power solution for the expansion of I/O ports, but it also has a wide operating temperature range, making it suitable for various industrial and automotive applications. The device also features an efficient counter and toggle flip-flops which makes it easier to program and configure, thus reducing the time and effort required for setting up a system.
The specific data is subject to PDF, and the above content is for reference
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