PCF8574T vs PCA8574D Vergleich
Detaillierter Direktvergleich von PCF8574T von NXP Semiconductors und PCA8574D von NXP Semiconductors. Vergleichen Sie die wichtigsten Spezifikationen, elektrischen Parameter, Gehäuse, Lebenszyklusstatus, Preise und Verfügbarkeit, um das beste Bauteil für Ihre Designanforderungen zu ermitteln.
NXP Semiconductors
PCF8574T - 8-bit I2C I/O Expander, SOIC-16 | NXP Semiconductors
PCF8574T ObsoleteSpezifikationsvergleich
| Parameter | PCF8574T | PCA8574D |
|---|---|---|
| Marke | NXP Semiconductors | NXP Semiconductors |
| Kategorie | Interface ICs | USB Interface ICs |
| Lebenszyklusstatus | Obsolete | Ende des Lebenszyklus |
| Lagerstatus | In Stock | In Stock |
| Stückpreis (USD) | $0,61 | $0,74 |
| Product Type | 8-bit I/O Expander | — |
| Bus Interface | I2C (Standard 100 kHz, Fast 400 kHz) | — |
| Supply Voltage (VCC) | 2.5 V to 6 V | — |
| Number of I/O Pins | 8 (quasi-bidirectional, P0-P7) | — |
| I2C Address Bits | 3 (A0, A1, A2) | — |
| Base Address | 0x20 (PCF8574) / 0x38 (PCF8574A) | — |
| Addressable Devices per Bus | 8 (addresses 0x20-0x27) | — |
| Interrupt Output | Yes, open-drain INT pin | Yes, open-drain INT with latched flag |
| Output Current (drive LOW) | [DATA_NEEDED: sink current per pin mA] | — |
| Standby Current | [DATA_NEEDED: Istandby in uA] | — |
| Gehäuse | SOIC-16 (T suffix) | SO16 (SOIC-16, SOT109-1) |
| Betriebstemperatur | -40C to +85C (industrial) | [DATA_NEEDED: operating temperature range] |
| MSL-Level | 1 (unlimited floor life) | — |
| RoHS-Status | Compliant | [DATA_NEEDED: RoHS status] |
| Process Technology | Silicon CMOS | — |
| Funktion | — | Remote 8-bit I/O expander for I2C-bus with interrupt |
| Number of I/O Ports | — | 8 quasi-bidirectional |
| Schnittstelle | — | I2C-bus (SCL, SDA) |
| I2C Bus Speed | — | 400 kHz |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| Hardware Address Pins | — | 3 (A0, A1, A2) - 8 addresses |
| Power-on Reset | — | Yes, ports initialized high (input mode) |
| Montageart | — | Surface Mount |
| Ordering Suffixes | — | PCA8574D,512 (Reel 13 inch), PCA8574D,518 (Reel 7 inch) |
| Max Devices per Bus | — | 8 (PCA8574) or 16 with PCA8574A (128 I/Os total) |
| LED Driving | — | Direct drive, current-sink mode per family datasheet |
| Lebenszyklusstatus | — | End of Life (per NXP product page) |