PCA9538DBR vs PCF8574TD Comparison
Detailed side-by-side comparison of PCA9538DBR by Texas Instruments and PCF8574TD by NXP Semiconductors. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
NXP Semiconductors
PCF8574TD - 8-bit I2C I/O Expander, SO-16 | NXP Semiconductors
PCF8574TD ✓ ActiveSpecification Comparison
| Parameter | PCA9538DBR | PCF8574TD |
|---|---|---|
| Brand | Texas Instruments | NXP Semiconductors |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Obsolete | Active |
| Number of I/O Ports | 8 ports | — |
| Operating Supply Voltage Range | 2.3 V to 5.5 V | — |
| Interface Type | I2C and SMBus | — |
| Maximum I2C Bus Frequency | 400 kHz | — |
| Interrupt Output | 1 interrupt output | — |
| Reset Input | 1 reset input | — |
| Configuration Registers | Configuration, port, and polarity control | — |
| Standby Current | 1 uA | 10 uA maximum |
| Package | 16-pin SSOP | SO-16 (Small Outline, 16-pin) |
| Package Family | SSOP family, surface-mount SMD | — |
| Mounting Type | Surface mount | Surface Mount |
| Pin Count | 16 pins | — |
| I/O Configuration | Individually configurable as input or output | — |
| Input Polarity Control | Configurable input polarity inversion | — |
| Address Configuration | Hardware-configurable bus address | — |
| Operating Temperature Range | [DATA_NEEDED: operating temperature range] | — |
| RoHS Status | [DATA_NEEDED: RoHS status] | Compliant |
| REACH Status | [DATA_NEEDED: REACH status] | — |
| Automotive Qualification | [DATA_NEEDED: AEC-Q100 qualification status] | — |
| Lead-Free Status | [DATA_NEEDED: lead-free status] | — |
| Halogen-Free Status | [DATA_NEEDED: halogen-free status] | — |
| Function | — | Remote 8-bit I/O expander for I2C-bus |
| Number of I/O | — | 8 (quasi-bidirectional) |
| Interface | — | I2C-bus (2-wire, up to 400 kHz) |
| Supply Voltage (VCC) | — | 2.5 V to 6 V |
| I2C Address Range (PCF8574) | — | 0x20 to 0x27 (3 HW address bits) |
| Interrupt Output (INT) | — | Yes, open-drain, active-low |
| Maximum Bus Frequency | — | 400 kHz |
| Output Drive Capability | — | 25 mA sink per pin (quasi-bidirectional) |
| Operating Temperature | — | -40C to +85C (industrial) |
| Process Technology | — | Silicon CMOS |
| MSL Level | — | [DATA_NEEDED: MSL rating] |
| ESD Rating | — | [DATA_NEEDED: ESD HBM rating] |