Part Details for PCA9554ADB by Texas Instruments
Results Overview of PCA9554ADB by Texas Instruments
- Distributor Offerings: (2 listings)
- Number of FFF Equivalents: (5 replacements)
- CAD Models: (Request Part)
- Number of Functional Equivalents: (10 options)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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PCA9554ADB Information
PCA9554ADB by Texas Instruments is a Parallel IO Port.
Parallel IO Ports are under the broader part category of Microcontrollers and Processors.
Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.
Available Datasheets
| Part # | Manufacturer | Description | Datasheet |
|---|---|---|---|
| PCA9554ADBQR | Texas Instruments | Remote 8-Bit I<sup>2</sup>C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | |
| PCA9554ADBR | Texas Instruments | Remote 8-Bit I<sup>2</sup>C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 | |
| PCA9554ADB | Texas Instruments | Remote 8-Bit I<sup>2</sup>C and SMBus I/O Expander with Interrupt Output and Configuration Registers 16-SSOP -40 to 85 |
Price & Stock for PCA9554ADB
| Part # | Distributor | Description | Stock | Price | Buy | |
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Rochester Electronics | PCA9554A Remote 8-Bit I2C and SMBus I/O Expander with Interrupt Output and Configuration Registers RoHS: Compliant Status: Obsolete Min Qty: 1 | 20 |
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$0.7172 / $1.1600 | Buy Now |
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Win Source Electronics | IC I/O EXPANDER I2C 8B 16SSOP | 24000 |
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$1.0740 / $1.6110 | Buy Now |
Part Details for PCA9554ADB
PCA9554ADB CAD Models
PCA9554ADB Part Data Attributes
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PCA9554ADB
Texas Instruments
Buy Now
Datasheet
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PCA9554ADB
Texas Instruments
8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 16-SSOP -40 to 85
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| Rohs Code | No | |
| Part Life Cycle Code | Obsolete | |
| Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
| Part Package Code | SOIC | |
| Package Description | GREEN, PLASTIC, SSOP-16 | |
| Pin Count | 16 | |
| Reach Compliance Code | compliant | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.01 | |
| Samacsys Manufacturer | Texas Instruments | |
| Address Bus Width | 8 | |
| Clock Frequency-Max | 0.4 MHz | |
| External Data Bus Width | ||
| JESD-30 Code | R-PDSO-G16 | |
| JESD-609 Code | e4 | |
| Length | 6.2 mm | |
| Moisture Sensitivity Level | 1 | |
| Number of Bits | 8 | |
| Number of I/O Lines | 8 | |
| Number of Ports | 1 | |
| Number of Terminals | 16 | |
| Operating Temperature-Max | 85 °C | |
| Operating Temperature-Min | -40 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Code | SSOP | |
| Package Equivalence Code | SSOP16,.3 | |
| Package Shape | RECTANGULAR | |
| Package Style | SMALL OUTLINE, SHRINK PITCH | |
| Peak Reflow Temperature (Cel) | 260 | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 2 mm | |
| Supply Current-Max | 0.175 mA | |
| Supply Voltage-Max | 5.5 V | |
| Supply Voltage-Min | 2.3 V | |
| Supply Voltage-Nom | 3 V | |
| Surface Mount | YES | |
| Technology | CMOS | |
| Temperature Grade | INDUSTRIAL | |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
| Terminal Form | GULL WING | |
| Terminal Pitch | 0.65 mm | |
| Terminal Position | DUAL | |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED | |
| Width | 5.3 mm | |
| uPs/uCs/Peripheral ICs Type | PARALLEL IO PORT, GENERAL PURPOSE |
Alternate Parts for PCA9554ADB
This table gives cross-reference parts and alternative options found for PCA9554ADB. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of PCA9554ADB, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| PCA9554ADBT | Texas Instruments | Check for Price | 8 I/O, PIA-GENERAL PURPOSE, PDSO16, PLASTIC, SSOP-16 | PCA9554ADB vs PCA9554ADBT |
| PCA9554ADBG4 | Texas Instruments | Check for Price | 8 I/O, PIA-GENERAL PURPOSE, PDSO16, GREEN, PLASTIC, SSOP-16 | PCA9554ADB vs PCA9554ADBG4 |
| PCA9554ADB,118 | NXP Semiconductors | $0.9158 | PCA9554/PCA9554A - 8-bit I²C-bus and SMBus I/O port with interrupt SSOP1 16-Pin | PCA9554ADB vs PCA9554ADB,118 |
| PCA9554ADB | Philips Semiconductors | Check for Price | Parallel IO Port, 8-Bit, CMOS, PDSO16, | PCA9554ADB vs PCA9554ADB |
| PCA9554ADB,112 | NXP Semiconductors | Check for Price | PCA9554/PCA9554A - 8-bit I²C-bus and SMBus I/O port with interrupt SSOP1 16-Pin | PCA9554ADB vs PCA9554ADB,112 |
PCA9554ADB Frequently Asked Questions (FAQ)
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The maximum frequency of the I2C interface for PCA9554ADB is 400 kHz, as specified in the datasheet. However, it's recommended to use a lower frequency, such as 100 kHz, to ensure reliable communication and to avoid noise and interference issues.
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The power-on default state of the GPIO pins is high-impedance, which means they are in a high-Z state. To ensure a known state, it's recommended to configure the GPIO pins as inputs or outputs with a pull-up or pull-down resistor, or to use an external pull-up or pull-down resistor to set the desired state.
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Yes, the PCA9554ADB can be used in a hot-swappable system, but you need to ensure that the power supply to the device is stable and that the I2C bus is not active during hot-swapping. You may also need to add external circuitry to ensure a smooth transition and to prevent damage to the device or the system.
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The PCA9554ADB has built-in I2C bus fault detection and recovery mechanisms. In case of a bus fault, the device will automatically retry the transmission and, if necessary, reset the I2C bus. You can also implement external fault detection and recovery mechanisms, such as a bus monitor or a fault detection circuit, to ensure reliable operation.
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Yes, the PCA9554ADB can be used in a system with multiple masters on the I2C bus, but you need to ensure that the masters are properly synchronized and that the bus is not accessed simultaneously by multiple masters. You may need to implement external arbitration logic or use a I2C bus arbiter to ensure reliable operation.