| Part Number | PCA9501 |
| Manufacturer | NXP (https://www.nxp.com/) |
| Title | 8-bit I2C and SMBus I/O port |
| Description | The PCA9501 is an 8-bit I/O expander with an on-board 2-kbit EEPROM. The I/O expandable eight quasi-bidirectional data pins can be independently a... |
| Features |
I 8 general purpose input/output expander/collector I Replacement for PCF8574 with integrated 2-kbit EEPROM I Internal 256 × 8 EEPROM I Self timed write cycle (5 ms typical) I 16 byte page write operation I I2C-bus and SMBus interface logic I Interna...
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| Datasheet |
 PCA9501 Datasheet
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