onsemi CAT9555YI-T2 Microcontrollers
I/O Port Expander, I<sup>2</sup>C / SMBus, 16-Bit, with Active Low Interrupt, TSSOP24, 4.4x7.8, 2000-REEL
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
CAT9555YI-T2
Detailed Description
I/O Port Expander, I<sup>2</sup>C / SMBus, 16-Bit, with Active Low Interrupt, TSSOP24, 4.4x7.8, 2000-REEL
Package
24-TSSOP (0.173", 4.40mm Width)
Lifecycle Status
Active
Datasheet
CAT9555YI-T2 Datasheet
Quick Jump:
Technical Specifications
onsemi CAT9555YI-T2 Microcontrollers technical specifications.
General
Interface
I2C, SMBus
Package / Case
24-TSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
2.3V ~ 5.5V
Lifecycle Status
Active
Output Type
Push-Pull
Current Output Source Sink
10mA, 24mA
Clock Frequency
400 kHz
Number of I/O
16
Alternate Parts Comparison (CAT9555YI-T2 vs CAT34C02YI-GT5A vs CAT24C02WE-GT3A vs CAT24C02LI-GA)
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 | 8-TSSOP | 8-SOIC | PDIP |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 2.3V ~ 5.5V | 1.7V ~ 5.5V | 1.8V ~ 5.5V | 1.7V ~ 5.5V |
| Memory Size | -- | 2Kb (256 x 8) | 2Kbit | 2Kb (256 x 8) |
| Interface | I2C, SMBus | Serial-I2C | Serial-2Wire | Serial-2Wire |
| Number of Pins | -- | 8 | 8 | 8 |
| RoHS | -- | Yes | Yes | Yes |
| Access Time | -- | 900 ns | 900 ns | 900 ns |
| AEC Qualified | -- | No | No | No |
| Automotive | -- | No | No | No |
| Basic Package Type | -- | Lead-Frame SMT | Lead-Frame SMT | Through Hole |
| Action |
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
CAT9532YI-T2onsemiI/O Port Expander, I 2 C / SMBus, 16-Bit, with LED Dimming, TSSOP24, 4.4x7.8, 2000-REEL