PCA9557DT vs PCA9557D Comparison
Detailed side-by-side comparison of PCA9557DT by Texas Instruments and PCA9557D by Texas Instruments. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
PCA9557D - 8-Bit I2C/SMBus I/O Expander with Reset | TI (Tape & Reel)
PCA9557D ✗ End of LifeSpecification Comparison
| Parameter | PCA9557DT | PCA9557D |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | NRND | End of Life |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.00 | $0.71 |
| Device Type | 8-bit I2C/SMBus low-power I/O expander | — |
| Number of I/O Ports | 8 | — |
| Operating Supply Voltage Range | 2.3 V to 5.5 V | — |
| I2C/SMBus Clock Frequency | 400 kHz | — |
| Standby Current Consumption | 1 uA maximum | — |
| Interface | I2C and SMBus | I2C, SMBus |
| Output Type | Open-drain and push-pull | — |
| Output Source Current | 10 mA | — |
| Output Sink Current | 25 mA | — |
| Reset Function | Reset register and reset input functionality | — |
| Configuration Function | Configuration register | — |
| Interrupt Output | No interrupt output | — |
| Programmability | Not verified | — |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C |
| Package | 16-SOIC | 16-SOIC (DR, 7.5 mil pitch) |
| Package Width | 3.90 mm | — |
| Mounting Type | Surface mount | Surface Mount |
| Lifecycle Status | Obsolete according to Digi-Electronics listing | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Number of I/O Bits | — | 8 |
| Bus Frequency (Max) | — | 400 kHz |
| Supply Voltage (VCC) | — | 2.3 V to 5.5 V |
| Standby Current (Max) | — | 1 uA |
| Output Drive Current per Bit | — | [DATA_NEEDED: per-bit source/sink mA rating] |
| I/O Voltage Tolerance | — | 5.5 V tolerant |
| Reset Input | — | Active-low hardware RESET + software reset (general call) |
| Interrupt Output (INT) | — | Yes, open-drain |
| Slave Address Pins | — | A0, A1, A2 (3 pins, 8 addresses within family) |
| MSL Level | — | 1 (unlimited floor life) |
| Lead-Free | — | Yes |
| Configuration Registers | — | Input/output direction registers, polarity inversion |