PCA9557DB vs PCA9557D Comparison
Detailed side-by-side comparison of PCA9557DB 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 | PCA9557DB | PCA9557D |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | End of Life |
| Device Type | 8-bit low-power I2C/SMBus I/O expander | — |
| Number of I/O Ports | 8 | — |
| Operating Supply Voltage | 2.3 V to 5.5 V | — |
| Maximum Serial Bus Frequency | 400 kHz | — |
| Serial Interface | I2C and SMBus | — |
| Package | 16-pin SSOP | 16-SOIC (DR, 7.5 mil pitch) |
| Package Width | 0.209 inch (5.30 mm) | — |
| Register Features | Reset and configuration registers | — |
| Mounting Type | Surface mount | Surface Mount |
| I/O Direction Control | [DATA_NEEDED: I/O direction configuration details] | — |
| Logic Input High Voltage | [DATA_NEEDED: logic input high voltage] | — |
| Logic Input Low Voltage | [DATA_NEEDED: logic input low voltage] | — |
| Output Current | [DATA_NEEDED: per-pin output current] | — |
| Low-Level Output Current | [DATA_NEEDED: low-level output current] | — |
| Quiescent Current | [DATA_NEEDED: quiescent current] | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| I2C Address Configuration | [DATA_NEEDED: hardware address pins and address range] | — |
| RoHS Status | [DATA_NEEDED: RoHS compliance status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH compliance status] | — |
| Automotive Qualification | [DATA_NEEDED: AEC-Q100 qualification status] | — |
| Number of I/O Bits | — | 8 |
| Interface | — | I2C, SMBus |
| Bus Frequency (Max) | — | 400 kHz |
| Supply Voltage (VCC) | — | 2.3 V to 5.5 V |
| Operating Temperature | — | -40 C to +85 C |
| 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 |