PCF8574PW vs PCA9534PW Karşılaştırma
Ayrıntılı yan yana karşılaştırma PCF8574PW tarafından Texas Instruments ve PCA9534PW tarafından NXP SemiconductorsAnahtar özellikleri, elektriksel parametreleri, ambalajı, yaşam döngüsü durumu, fiyatlandırma ve mevcudiyeti karşılaştırarak tasarım gereksinimleriniz için en iyi bileşeni belirleyin.
Texas Instruments
PCF8574PW - 8-bit I2C I/O Expander 20-TSSOP | Texas Instruments (Tape & Reel)
PCF8574PW ✓ Aktif
Özellik Karşılaştırması
| Parametre | PCF8574PW | PCA9534PW |
|---|---|---|
| Marka | Texas Instruments | NXP Semiconductors |
| Kategori | Interface ICs | Interface ICs |
| Yaşam Döngüsü Durumu | Aktif | Aktif |
| Fonksiyon | I/O Expander | — |
| Number of I/O | 8 | — |
| Arayüz | I2C (SMBus compatible) | I2C-bus and SMBus |
| Clock Frequency (Max) | 100 kHz | — |
| I2C Address Base | 0x20 (PCF8574A: 0x38) | — |
| Supply Voltage (VCC) | 2.5 V to 6 V | — |
| Supply Current (Standby) | 2.5 uA typical | — |
| Interrupt Output | Yes (active-low INT) | Yes |
| Hardware Address Pins | 3 (A0, A1, A2) | — |
| Max Devices on Bus | 8 (16 combined with PCF8574A) | — |
| Output Drive (Source/Sink) | 25 mA / 25 mA per I/O | — |
| I/O Type | Quasi-bidirectional (no direction register) | — |
| Paket | 20-pin TSSOP (PW) | 16-pin TSSOP |
| İşletim Sıcaklığı | -40 C to +85 C | [DATA_NEEDED: operating temperature range] |
| Montaj Türü | Surface Mount | Surface Mount |
| RoHS Durumu | Compliant | [DATA_NEEDED: RoHS status] |
| MSL Seviyesi | 1 (unlimited floor life) | — |
| Device Type | — | 8-bit CMOS I2C-bus and SMBus low-power I/O port expander |
| Number of GPIO Pins | — | 8 |
| Supply Voltage Range | — | 2.3 V to 5.5 V |
| I2C Bus Frequency | — | 400 kHz |
| Configuration Registers | — | Yes |
| Address Configuration Pins | — | A0, A1, and A2 |
| Maximum Devices Sharing Bus | — | 8 devices per manufacturer data |
| Internal I/O Pull-up Resistors | — | Removed |
| Pin Sayısı | — | 16 pins |
| PCF8574 Compatibility | — | Pin-to-pin and I2C address compatible; software changes required |
| Manufacturer | — | NXP Semiconductors |
| Yaşam Döngüsü Durumu | — | Active |
| REACH Status | — | [DATA_NEEDED: REACH status] |