Texas Instruments PCA9555PWR Microcontrollers
16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 24-TSSOP -40 to 85
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
PCA9555PWR
Detailed Description
16-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, weak pull-up & config registers 24-TSSOP -40 to 85
Package
24-TSSOP (0.173", 4.40mm Width)
Lifecycle Status
Not For New Designs
Datasheet
PCA9555PWR Datasheet
Quick Jump:
Technical Specifications
Texas Instruments PCA9555PWR Microcontrollers technical specifications.
General
Interface
I²C, SMBus
RoHS
Yes
Package / Case
24-TSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
2.3V ~ 5.5V
Lifecycle Status
Not For New Designs
Features
POR
Output Type
Push-Pull
Number of I/O
16
Alternate Parts Comparison (PCA9555PWR vs PCA9535PWRG4 vs CD4097BPWR vs LM2717MTX/NOPB)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 24-TSSOP | 24-TSSOP | 24-TSSOP | 24-TSSOP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -55°C ~ 125°C (TA) | -40°C ~ 125°C (TJ) |
| RoHS | Yes | Yes | Yes | Yes |
| Lifecycle Status | Not For New Designs | Obsolete | Active | Active |
| Package | TSSOP-24 | TSSOP-24 | 24-TSSOP | TSSOP (PW)-24 |
| Supply Voltage | 2.3V ~ 5.5V | 2.3V ~ 5.5V | 5 V ~ 18 V | -- |
| Output Type | Push-Pull | Push-Pull | -- | Fixed |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
Suggested replacements
CAT9555YI-T2onsemiSimilaronsemi
Pin YesPkg YesElec Mixed
I/O Port Expander, I 2 C / SMBus, 16-Bit, with Active Low Interrupt, TSSOP24, 4.4x7.8, 2000-REEL
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